LMP2232 www.ti.com SNOSB02C – JANUARY 2008 – REVISED MARCH 2013 LMP2232 Dual Micropower, 1.6V, Precision, Operational Amplifier with CMOS Input Check for Samples: LMP2232 FEATURES 1 (For VS = 5V, Typical Unless Otherwise Noted) 23 • • • • • • • • • • • • Supply Current at 1.8V 16 µA Operating Voltage Range 1.6V to 5.5V Low TCVOS ±0.5 µV/°C (max) VOS ±150 µV (max) Input Bias Current 20 fA PSRR 120 dB CMRR 97 dB Open Loop Gain 120 dB Gain Bandwidth Product 130 kHz Slew Rate 58 V/ms Input Voltage Noise, f = 1 kHz 60 nV/√Hz Temperature Range –40°C to 125°C APPLICATIONS • • • • • Precision Instrumentation Amplifiers Battery Powered Medical Instrumentation High Impedance Sensors Strain Gauge Bridge Amplifier Thermocouple Amplifiers DESCRIPTION The LMP2232 is a dual micropower precision amplifier designed for battery powered applications. The 1.6V to 5.5V operating supply voltage range and quiescent power consumption of only 26 μW extend the battery life in portable systems. The LMP2232 is part of the LMP™ precision amplifier family. The high impedance CMOS input makes it ideal for instrumentation and other sensor interface applications. The LMP2232 has a maximum offset voltage of 150 μV and maximum offset voltage drift of only 0.5 μV/°C along with low bias current of only ±20 fA. These precise specifications make the LMP2232 a great choice for maintaining system accuracy and long term stability. The LMP2232 has a rail-to-rail output that swings 15 mV from the supply voltage, which increases system dynamic range. The common mode input voltage range extends 200 mV below the negative supply, thus the LMP2232 is ideal for ground sensing in single supply applications. The LMP2232 is offered in 8-pin SOIC and VSSOP packages. The LMP2231 is the single version of this product and the LMP2234 is the quad version of this product. Both of these products are available on Texas Instruments' website. 1 2 3 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. LMP is a trademark of Texas Instruments. All other trademarks are the property of their respective owners. PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Copyright © 2008–2013, Texas Instruments Incorporated LMP2232 SNOSB02C – JANUARY 2008 – REVISED MARCH 2013 www.ti.com Typical Application + + V V 3 ½ LMP2232 + 2 6 LM4140A 1 PF 1,4,7,8 V + 0.1 PF V + + ½ LMP2232 - R+'R 10 k: 12 k: R + - V VA ½ LMP2232 1 k: R 10 PF 40 k: IN + ADC121S021 R+'R + V - 12 k: ½ LMP2232 + GND 10 k: 40 k: Figure 1. Strain Gauge Bridge Amplifier These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates. Absolute Maximum Ratings ESD Tolerance (1) (2) (3) Human Body Model Machine Model Differential Input Voltage 2000V 100V ±300 mV Supply Voltage (VS = V+ - V–) 6V Voltage on Input/Output Pins V+ + 0.3V, V– – 0.3V Storage Temperature Range −65°C to 150°C Junction Temperature (4) 150°C Mounting Temperature Infrared or Convection (20 sec.) +235°C Wave Soldering Lead Temperature (10 sec.) (1) (2) (3) (4) 2 +260°C Absolute Maximum Ratings indicate limits beyond which damage may occur. Operating Ratings indicate conditions for which the device is intended to be functional, but specific performance is not ensured. For ensured specifications and test conditions, see the Electrical Characteristics. If Military/Aerospace specified devices are required, please contact the TI Sales Office/ Distributors for availability and specifications. Human Body Model, applicable std. MIL-STD-883, Method 3015.7. Machine Model, applicable std. JESD22-A115-A (ESD MM std. of JEDEC)Field-Induced Charge-Device Model, applicable std. JESD22-C101-C (ESD FICDM std. of JEDEC). The maximum power dissipation is a function of TJ(MAX), θJA, and TA. The maximum allowable power dissipation at any ambient temperature is PD = (TJ(MAX) – TA)/ θJA. All numbers apply for packages soldered directly onto a PC board. Submit Documentation Feedback Copyright © 2008–2013, Texas Instruments Incorporated Product Folder Links: LMP2232 LMP2232 www.ti.com SNOSB02C – JANUARY 2008 – REVISED MARCH 2013 Operating Ratings (1) Operating Temperature Range + (2) −40°C to 125°C – Supply Voltage (VS = V - V ) Package Thermal Resistance (θJA) (2) (1) (2) 1.6V to 5.5V 8-Pin SOIC 111.2 °C/W 8-Pin VSSOP 147.4 °C/W Absolute Maximum Ratings indicate limits beyond which damage may occur. Operating Ratings indicate conditions for which the device is intended to be functional, but specific performance is not ensured. For ensured specifications and test conditions, see the Electrical Characteristics. The maximum power dissipation is a function of TJ(MAX), θJA, and TA. The maximum allowable power dissipation at any ambient temperature is PD = (TJ(MAX) – TA)/ θJA. All numbers apply for packages soldered directly onto a PC board. 5V DC Electrical Characteristics (1) Unless otherwise specified, all limits ensured for TA = 25°C, V+ = 5V, V− = 0V, VCM = VO = V+/2, and RL > 1 MΩ. Boldface limits apply at the temperature extremes. Symbol Typ (3) Max (2) Units ±10 ±150 ±230 μV LMP2232A ±0.3 ±0.5 LMP2232B ±0.3 ±2.5 0.02 ±3 ±125 Parameter VOS Input Offset Voltage TCVOS Input Offset Voltage Drift Conditions Min (2) IBIAS Input Bias Current IOS Input Offset Current CMRR Common Mode Rejection Ratio 0V ≤ VCM ≤ 4V 81 80 97 PSRR Power Supply Rejection Ratio 1.6V ≤ V+ ≤ 5.5V V− = 0V, VCM = 0V 83 83 120 CMVR Common Mode Voltage Range CMRR ≥ 80 dB CMRR ≥ 79 dB −0.2 −0.2 AVOL Large Signal Voltage Gain VO = 0.3V to 4.7V RL = 10 kΩ to V+/2 110 108 VO Output Swing High IO IS (1) (2) (3) (4) Output Current (4) pA 5 RL = 10 kΩ to V+/2 VIN(diff) = 100 mV 17 Sourcing, VO to V− VIN(diff) = 100 mV 27 19 30 Sinking, VO to V+ VIN(diff) = −100 mV 17 12 22 Supply Current dB dB V 120 17 RL = 10 kΩ to V /2 VIN(diff) = −100 mV fA 4.2 4.2 + Output Swing Low μV/°C 19 dB 50 50 50 50 mV from either rail mA 27 28 μA Electrical Table values apply only for factory testing conditions at the temperature indicated. Factory testing conditions result in very limited self-heating of the device such that TJ = TA. No specification of parametric performance is indicated in the electrical tables under conditions of internal self-heating where TJ > TA. Absolute Maximum Ratings indicate junction temperature limits beyond which the device may be permanently degraded, either mechanically or electrically. All limits are specified by testing, statistical analysis or design. Typical values represent the most likely parametric norm at the time of characterization. Actual typical values may vary over time and will also depend on the application and configuration. The typical values are not tested and are not ensured on shipped production material. The short circuit test is a momentary open loop test. Submit Documentation Feedback Copyright © 2008–2013, Texas Instruments Incorporated Product Folder Links: LMP2232 3 LMP2232 SNOSB02C – JANUARY 2008 – REVISED MARCH 2013 www.ti.com 5V AC Electrical Characteristics (1) Unless otherwise specified, all limits ensured for TA = 25°C, V+ = 5V, V− = 0V, VCM = VO = V+/2, and RL > 1 MΩ. Boldface limits apply at the temperature extremes. Symbol Parameter Conditions GBW Gain-Bandwidth Product CL = 20 pF, RL = 10 kΩ SR Slew Rate AV = +1 Min (2) Typ (3) Max (2) 130 Falling Edge 33 32 58 Rising Edge 33 32 48 Units kHz V/ms θm Phase Margin CL = 20 pF, RL = 10 kΩ 68 Gm Gain Margin CL = 20 pF, RL = 10 kΩ 27 dB en Input-Referred Voltage Noise Density f = 1 kHz 60 nV/√Hz deg Input Referred Voltage Noise 0.1 Hz to 10 Hz 2.3 μVPP in Input-Referred Current Noise f = 1 kHz 10 fA/√Hz THD+N Total Harmonic Distortion + Noise f = 100 Hz, RL = 10 kΩ 0.002 % (1) (2) (3) Electrical Table values apply only for factory testing conditions at the temperature indicated. Factory testing conditions result in very limited self-heating of the device such that TJ = TA. No specification of parametric performance is indicated in the electrical tables under conditions of internal self-heating where TJ > TA. Absolute Maximum Ratings indicate junction temperature limits beyond which the device may be permanently degraded, either mechanically or electrically. All limits are specified by testing, statistical analysis or design. Typical values represent the most likely parametric norm at the time of characterization. Actual typical values may vary over time and will also depend on the application and configuration. The typical values are not tested and are not ensured on shipped production material. 3.3V DC Electrical Characteristics (1) Unless otherwise specified, all limits ensured for T A = 25°C, V+ = 3.3V, V− = 0V, VCM = VO = V+/2, and RL > 1 MΩ. Boldface limits apply at the temperature extremes. Symbol Typ (3) Max (2) Units ±10 ±160 ±250 μV LMP2232A ±0.3 ±0.5 LMP2232B ±0.3 ±2.5 0.02 ±3 ±125 Parameter VOS Input Offset Voltage TCVOS Input Offset Voltage Drift Conditions Min (2) IBIAS Input Bias Current IOS Input Offset Current CMRR Common Mode Rejection Ratio 0V ≤ VCM ≤ 2.3V 79 77 92 PSRR Power Supply Rejection Ratio 1.6V ≤ V+ ≤ 5.5V V− = 0V, VCM = 0V 83 83 120 CMVR Common Mode Voltage Range CMRR ≥ 78 dB CMRR ≥ 77 dB −0.2 −0.2 AVOL Large Signal Voltage Gain VO = 0.3V to 3V RL = 10 kΩ to V+/2 108 107 VO Output Swing High 5 + RL = 10 kΩ to V /2 VIN(diff) = 100 mV Output Swing Low (1) (2) (3) 4 RL = 10 kΩ to V /2 VIN(diff) = −100 mV dB dB 120 + 14 pA fA 2.5 2.5 14 μV/°C V dB 50 50 50 50 mV from either rail Electrical Table values apply only for factory testing conditions at the temperature indicated. Factory testing conditions result in very limited self-heating of the device such that TJ = TA. No specification of parametric performance is indicated in the electrical tables under conditions of internal self-heating where TJ > TA. Absolute Maximum Ratings indicate junction temperature limits beyond which the device may be permanently degraded, either mechanically or electrically. All limits are specified by testing, statistical analysis or design. Typical values represent the most likely parametric norm at the time of characterization. Actual typical values may vary over time and will also depend on the application and configuration. The typical values are not tested and are not ensured on shipped production material. Submit Documentation Feedback Copyright © 2008–2013, Texas Instruments Incorporated Product Folder Links: LMP2232 LMP2232 www.ti.com SNOSB02C – JANUARY 2008 – REVISED MARCH 2013 3.3V DC Electrical Characteristics(1) (continued) Unless otherwise specified, all limits ensured for T A = 25°C, V+ = 3.3V, V− = 0V, VCM = VO = V+/2, and RL > 1 MΩ. Boldface limits apply at the temperature extremes. Symbol IO Output Current IS (4) Conditions Min (2) Typ (3) − Sourcing, VO to V VIN(diff) = 100 mV 11 8 14 Sinking, VO to V+ VIN(diff) = −100 mV 8 5 11 Parameter (4) Supply Current 17 Max (2) Units mA 25 26 μA The short circuit test is a momentary open loop test. 3.3V AC Electrical Characteristics (1) Unless otherwise is specified, all limits ensured for TA = 25°C, V+ = 3.3V, V− = 0V, VCM = VO = V+/2, and RL > 1 MΩ. Boldface limits apply at the temperature extremes. Symbol Parameter Conditions Min (2) Typ (3) GBW Gain-Bandwidth Product CL = 20 pF, RL = 10 kΩ 128 SR Slew Rate AV = +1, CL = 20 pF RL = 10 kΩ Falling Edge 58 Rising Edge 48 Max (2) Units kHz V/ms θm Phase Margin CL = 20 pF, RL = 10 kΩ 66 Gm Gain Margin CL = 20 pF, RL = 10 kΩ 26 dB en Input-Referred Voltage Noise Density f = 1 kHz 60 nV/√Hz Input-Referred Voltage Noise 0.1 Hz to 10 Hz 2.4 μVPP in Input-Referred Current Noise f = 1 kHz 10 fA/√Hz THD+N Total Harmonic Distortion + Noise f = 100 Hz, RL = 10 kΩ 0.003 % (1) (2) (3) deg Electrical Table values apply only for factory testing conditions at the temperature indicated. Factory testing conditions result in very limited self-heating of the device such that TJ = TA. No specification of parametric performance is indicated in the electrical tables under conditions of internal self-heating where TJ > TA. Absolute Maximum Ratings indicate junction temperature limits beyond which the device may be permanently degraded, either mechanically or electrically. All limits are specified by testing, statistical analysis or design. Typical values represent the most likely parametric norm at the time of characterization. Actual typical values may vary over time and will also depend on the application and configuration. The typical values are not tested and are not ensured on shipped production material. 2.5V DC Electrical Characteristics (1) Unless otherwise specified, all limits ensured for TA = 25°C, V+ = 2.5V, V− = 0V, VCM = VO = V+/2, and RL > 1MΩ. Boldface limits apply at the temperature extremes. Symbol VOS Input Offset Voltage TCVOS Input Offset Voltage Drift IBias Input Bias Current IOS Input Offset Current CMRR Common Mode Rejection Ratio (1) (2) (3) Typ (3) Max (2) Units ±10 ±190 ±275 μV LMP2232A ±0.3 ±0.5 LMP2232B ±0.3 ±2.5 0.02 ±3 ±125 Parameter Conditions Min (2) μV/°C 5 0V ≤ VCM ≤ 1.5V 77 76 91 pA fA dB Electrical Table values apply only for factory testing conditions at the temperature indicated. Factory testing conditions result in very limited self-heating of the device such that TJ = TA. No specification of parametric performance is indicated in the electrical tables under conditions of internal self-heating where TJ > TA. Absolute Maximum Ratings indicate junction temperature limits beyond which the device may be permanently degraded, either mechanically or electrically. All limits are specified by testing, statistical analysis or design. Typical values represent the most likely parametric norm at the time of characterization. Actual typical values may vary over time and will also depend on the application and configuration. The typical values are not tested and are not ensured on shipped production material. Submit Documentation Feedback Copyright © 2008–2013, Texas Instruments Incorporated Product Folder Links: LMP2232 5 LMP2232 SNOSB02C – JANUARY 2008 – REVISED MARCH 2013 www.ti.com 2.5V DC Electrical Characteristics(1) (continued) Unless otherwise specified, all limits ensured for TA = 25°C, V+ = 2.5V, V− = 0V, VCM = VO = V+/2, and RL > 1MΩ. Boldface limits apply at the temperature extremes. Symbol Parameter Conditions + Min (2) Typ (3) 83 83 120 Max (2) PSRR Power Supply Rejection Ratio 1.6V ≤ V ≤ 5.5V V– = 0V, VCM = 0V CMVR Common Mode Voltage Range CMRR ≥ 77 dB CMRR ≥ 76 dB −0.2 −0.2 AVOL Large Signal Voltage Gain VO = 0.3V to 2.2V RL = 10 kΩ to V+/2 104 104 VO Output Swing High RL = 10 kΩ to V+/2 VIN(diff) = 100 mV 12 50 50 Output Swing Low RL = 10 kΩ to V+/2 VIN(diff) = –100 mV 13 50 50 IO Output Current IS (4) (4) dB 1.7 1.7 120 Sourcing, VO to V– VIN(diff) = 100 mV 5 4 8 Sinking, VO to V+ VIN(diff) = –100 mV 3.5 2.5 7 Supply Current Units V dB mV from either rail mA 16 24 25 µA The short circuit test is a momentary open loop test. 2.5V AC Electrical Characteristics (1) Unless otherwise specified, all limits specified for TA = 25°C, V+ = 2.5V, V− = 0V, VCM = VO = V+/2, and RL > 1MΩ. Boldface limits apply at the temperature extremes. Symbol Parameter Min (2) Conditions GBW Gain-Bandwidth Product CL = 20 pF, RL = 10 kΩ SR Slew Rate AV = +1, CL = 20 pF RL = 10 kΩ Typ (3) 128 Falling Edge 58 Rising Edge 48 Max (2) Units kHz V/ms θm Phase Margin CL = 20 pF, RL = 10 kΩ 64 deg Gm Gain Margin CL = 20 pF, RL = 10 kΩ 26 dB en Input-Referred Voltage Noise Density f = 1 kHz 60 nV/√Hz Input-Referred Voltage Noise 0.1 Hz to 10 Hz 2.5 μVPP in Input-Referred Current Noise f = 1 kHz 10 fA/√Hz THD+N Total Harmonic Distortion + Noise f = 100 Hz, RL = 10 kΩ 0.005 % (1) (2) (3) 6 Electrical Table values apply only for factory testing conditions at the temperature indicated. Factory testing conditions result in very limited self-heating of the device such that TJ = TA. No specification of parametric performance is indicated in the electrical tables under conditions of internal self-heating where TJ > TA. Absolute Maximum Ratings indicate junction temperature limits beyond which the device may be permanently degraded, either mechanically or electrically. All limits are specified by testing, statistical analysis or design. Typical values represent the most likely parametric norm at the time of characterization. Actual typical values may vary over time and will also depend on the application and configuration. The typical values are not tested and are not ensured on shipped production material. Submit Documentation Feedback Copyright © 2008–2013, Texas Instruments Incorporated Product Folder Links: LMP2232 LMP2232 www.ti.com SNOSB02C – JANUARY 2008 – REVISED MARCH 2013 1.8V DC Electrical Characteristics (1) Unless otherwise specified, all limits ensured for T A = 25°C, V+ = 1.8V, V− = 0V, VCM = VO = V+/2, and RL > 1 MΩ. Boldface limits apply at the temperature extremes. Symbol Typ (3) Max (2) Units ±10 ±230 ±325 μV LMP2232A ±0.3 ±0.5 LMP2232B ±0.3 ±2.5 0.02 ±3 ±125 Parameter VOS Input Offset Voltage TCVOS Input Offset Voltage Drift Min (2) Conditions IBIAS Input Bias Current IOS Input Offset Current CMRR Common Mode Rejection Ratio 0V ≤ VCM ≤ 0.8V 76 75 92 PSRR Power Supply Rejection Ratio 1.6V ≤ V+ ≤ 5.5V V− = 0V, VCM = 0V 83 83 120 CMVR Common Mode Voltage Range CMRR ≥ 76 dB CMRR ≥ 75 dB −0.2 0 AVOL Large Signal Voltage Gain VO = 0.3V to 1.5V RL = 10 kΩ to V+/2 103 103 VO Output Swing High fA dB dB 1.0 1.0 dB 12 RL = 10 kΩ to V /2 VIN(diff) = −100 mV IS (1) (2) (3) (4) (4) V 120 RL = 10 kΩ to V+/2 VIN(diff) = 100 mV Output Swing Low Output Current pA 5 50 50 + IO μV/°C 50 50 13 Sourcing, VO to V– VIN(diff) = 100 mV 2.5 2 5 Sinking, VO to V+ VIN(diff) = −100 mV 2 1.5 5 Supply Current mV from either rail mA 24 25 16 µA Electrical Table values apply only for factory testing conditions at the temperature indicated. Factory testing conditions result in very limited self-heating of the device such that TJ = TA. No specification of parametric performance is indicated in the electrical tables under conditions of internal self-heating where TJ > TA. Absolute Maximum Ratings indicate junction temperature limits beyond which the device may be permanently degraded, either mechanically or electrically. All limits are specified by testing, statistical analysis or design. Typical values represent the most likely parametric norm at the time of characterization. Actual typical values may vary over time and will also depend on the application and configuration. The typical values are not tested and are not ensured on shipped production material. The short circuit test is a momentary open loop test. 1.8V AC Electrical Characteristics (1) Unless otherwise is specified, all limits ensured for TA = 25°C, V+ = 1.8V, V− = 0V, VCM = VO = V+/2, and RL > 1 MΩ. Boldface limits apply at the temperature extremes. Symbol Parameter Conditions Min (2) Typ (3) GBW Gain-Bandwidth Product CL = 20 pF, RL = 10 kΩ 127 SR Slew Rate AV = +1, CL = 20 pF RL = 10 kΩ Falling Edge 58 Rising Edge 48 Max (2) Units kHz V/ms θm Phase Margin CL = 20 pF, RL = 10 kΩ 60 Gm Gain Margin CL = 20 pF, RL = 10 kΩ 25 dB en Input-Referred Voltage Noise Density f = 1 kHz 60 nV/√Hz Input-Referred Voltage Noise 0.1 Hz to 10 Hz 2.4 μVPP (1) (2) (3) deg Electrical Table values apply only for factory testing conditions at the temperature indicated. Factory testing conditions result in very limited self-heating of the device such that TJ = TA. No specification of parametric performance is indicated in the electrical tables under conditions of internal self-heating where TJ > TA. Absolute Maximum Ratings indicate junction temperature limits beyond which the device may be permanently degraded, either mechanically or electrically. All limits are specified by testing, statistical analysis or design. Typical values represent the most likely parametric norm at the time of characterization. Actual typical values may vary over time and will also depend on the application and configuration. The typical values are not tested and are not ensured on shipped production material. Submit Documentation Feedback Copyright © 2008–2013, Texas Instruments Incorporated Product Folder Links: LMP2232 7 LMP2232 SNOSB02C – JANUARY 2008 – REVISED MARCH 2013 www.ti.com 1.8V AC Electrical Characteristics (1) (continued) Unless otherwise is specified, all limits ensured for TA = 25°C, V+ = 1.8V, V− = 0V, VCM = VO = V+/2, and RL > 1 MΩ. Boldface limits apply at the temperature extremes. Symbol Parameter Conditions in Input-Referred Current Noise f = 1 kHz THD+N Total Harmonic Distortion + Noise f = 100 Hz, RL = 10 kΩ Min (2) Typ (3) Max (2) Units 10 fA/√Hz 0.005 % Connection Diagram Figure 2. 8-Pin VSSOP/SOIC (Top View) Package Numbers DGK0008A and D0008A 8 Submit Documentation Feedback Copyright © 2008–2013, Texas Instruments Incorporated Product Folder Links: LMP2232 LMP2232 www.ti.com SNOSB02C – JANUARY 2008 – REVISED MARCH 2013 Typical Performance Characteristics Unless otherwise Specified: TA = 25°C, VS = 5V, VCM = VS/2, where VS = V+ - V− Offset Voltage Distribution TCVOS Distribution 10 16 VS = 5V VCM = VS/2 14 TA = 25°C 12 VCM = VS/2 8 PERCENTAGE (%) PERCENTAGE (%) VS = 5V 10 8 6 4 -40°C d TA d 125°C 6 4 2 2 0 -150 -100 -50 0 50 100 0 -2.5 -2 -1.5 -1 -0.5 0 0.5 1 1.5 2 2.5 150 VOS (PV) TCVOS (PV/°C) Figure 3. Figure 4. Offset Voltage Distribution TCVOS Distribution 10 14 VS = 3.3V VS = 3.3V 8 VCM = VS/2 TA = 25°C VCM = VS/2 10 PERCENTAGE (%) PERCENTAGE (%) 12 -40°C d TA d 125°C 8 6 4 6 4 2 2 0 -150 -100 -50 0 50 100 0 -2.5 -2 -1.5 -1 -0.5 0 0.5 1 1.5 2 2.5 150 VOS (PV) TCVOS (PV/°C) Figure 5. Figure 6. Offset Voltage Distribution TCVOS Distribution 10 14 VS = 2.5V 8 VCM = VS/2 10 VS = 2.5V VCM = VS/2 TA = 25°C PERCENTAGE (%) PERCENTAGE (%) 12 8 6 4 -40°C d TA d 125°C 6 4 2 2 0 -150 -100 -50 0 50 100 150 0 -2.5 -2 -1.5 -1 -0.5 0 0.5 1 1.5 2 2.5 VOS (PV) TCVOS (PV/°C) Figure 7. Figure 8. Submit Documentation Feedback Copyright © 2008–2013, Texas Instruments Incorporated Product Folder Links: LMP2232 9 LMP2232 SNOSB02C – JANUARY 2008 – REVISED MARCH 2013 www.ti.com Typical Performance Characteristics (continued) Unless otherwise Specified: TA = 25°C, VS = 5V, VCM = VS/2, where VS = V+ - V− Offset Voltage Distribution TCVOS Distribution 25 12 VS = 1.8V VS = 1.8V TA = 25°C 10 VCM = VS/2 20 PERCENTAGE (%) PERCENTAGE (%) VCM = VS/2 8 6 4 15 10 5 2 0 -150 -40°C d TA d 125°C -100 -50 0 50 100 0 -2.5 -2 -1.5 -1 -0.5 0 0.5 1 1.5 2 2.5 150 TCVOS (PV/°C) VOS (PV) Figure 9. Figure 10. Offset Voltage vs. VCM Offset Voltage vs. VCM 250 250 VS = 3.3V 150 150 25°C -40°C 25°C 85°C 50 VOS (PV) OFFSET VOLTAGE (PV) VS = 5V -40°C 125°C -50 -150 -250 -0.2 50 85°C 125°C -50 -150 0.8 1.8 2.8 3.8 -250 -0.2 0.2 4.3 0.6 1 1.4 VCM (V) 1.8 Figure 11. Offset Voltage vs. VCM Offset Voltage vs. VCM VS = 1.8V 150 -40°C -40°C 85°C 50 VOS (PV) VOS (PV) 25°C -50 125°C 25°C 50 85°C -50 125°C -150 -150 0.2 0.6 1 1.4 1.8 2.2 -250 -0.2 0 0.2 0.4 0.6 0.8 1 1.2 1.4 VCM (V) VCM (V) Figure 13. 10 3 250 VS = 2.5V -250 -0.2 2.6 Figure 12. 250 150 2.2 VCM (V) Figure 14. Submit Documentation Feedback Copyright © 2008–2013, Texas Instruments Incorporated Product Folder Links: LMP2232 LMP2232 www.ti.com SNOSB02C – JANUARY 2008 – REVISED MARCH 2013 Typical Performance Characteristics (continued) Unless otherwise Specified: TA = 25°C, VS = 5V, VCM = VS/2, where VS = V+ - V− Offset Voltage vs. Temperature Offset Voltage vs. Supply Voltage 120 VS = 1.8V, 2.5V, 3.3V, 5V 100 VCM = 0V 5 TYPICAL PARTS 80 80 OFFSET VOLTAGE (PV) OFFSET VOLTAGE (PV) 100 60 40 20 0 -20 -40 60 -40°C 40 25°C 20 0 85°C -20 -60 -80 -40 -20 125°C 0 20 40 60 80 100 120 TEMPERATURE (°C) -40 1.5 2 2.5 3 3.5 4 4.5 5 5.5 SUPPLY VOLTAGE (V) Figure 15. Figure 16. 0.1 Hz to 10 Hz Voltage Noise 0.1 Hz to 10 Hz Voltage Noise Figure 17. Figure 18. 0.1 Hz to 10 Hz Voltage Noise 0.1 Hz to 10 Hz Voltage Noise Figure 19. Figure 20. Submit Documentation Feedback Copyright © 2008–2013, Texas Instruments Incorporated Product Folder Links: LMP2232 11 LMP2232 SNOSB02C – JANUARY 2008 – REVISED MARCH 2013 www.ti.com Typical Performance Characteristics (continued) Unless otherwise Specified: TA = 25°C, VS = 5V, VCM = VS/2, where VS = V+ - V− Input Bias Current vs. VCM Input Bias Current vs. VCM 10 40 VS = 2V INPUT BIAS CURRENT (pA) INPUT BIAS CURRENT (fA) 25°C 20 10 0 -40°C -10 -20 6 4 85°C 2 0 -2 -6 -8 -40 -10 0.25 0.5 1 0.75 1.25 125°C -4 -30 0 VS = 2V 8 30 0 1.5 0.5 0.75 1 VCM (V) Figure 21. Figure 22. Input Bias Current vs. VCM 1.25 10 VS = 2.5V 20 -40°C 10 0 -10 -20 25°C VS = 2.5V 8 INPUT BIAS CURRENT (pA) 30 -30 6 4 85°C 2 0 -2 -4 125°C -6 -8 -40 0 0.5 1 1.5 -10 2 0 0.5 1 1.5 VCM (V) VCM (V) Figure 23. Figure 24. Input Bias Current vs. VCM 20 VS = 3.3V VS = 3.3V 15 50 INPUT BIAS CURRENT (pA) 75 INPUT BIAS CURRENT (fA) 2 Input Bias Current vs. VCM 100 25°C 25 0 -40°C -25 -50 -75 10 125°C 5 0 85°C -5 -10 -15 -100 -20 0 0.5 1 1.5 2 0 2.5 VCM (V) 0.5 1 1.5 2 2.5 VCM (V) Figure 25. 12 1.5 Input Bias Current vs. VCM 40 INPUT BIAS CURRENT (fA) 0.25 VCM (V) Figure 26. Submit Documentation Feedback Copyright © 2008–2013, Texas Instruments Incorporated Product Folder Links: LMP2232 LMP2232 www.ti.com SNOSB02C – JANUARY 2008 – REVISED MARCH 2013 Typical Performance Characteristics (continued) Unless otherwise Specified: TA = 25°C, VS = 5V, VCM = VS/2, where VS = V+ - V− Input Bias Current vs. VCM Input Bias Current vs. VCM 600 30 VS = 5V 400 300 200 25°C 100 0 -100 -40°C -200 1 3 2 20 125°C 15 10 5 0 -5 85°C -10 -15 -20 -25 -30 -300 0 VS = 5V 25 INPUT BIAS CURRENT (pA) INPUT BIAS CURRENT (fA) 500 4 0 1 2 VCM (V) 3 4 VCM (V) Figure 27. Figure 28. PSRR vs. Frequency Supply Current vs. Supply Voltage (per channel) 11 0 VS = 2V, 2.5V, 3.3V, 5V -20 PSRR (dB) SUPPLY CURRENT (PA) 10 -40 +PSRR -60 -80 -100 VS = 2V -PSRR -120 -140 -160 10 9 25°C 8 -40°C 7 6 VS = 5V 100 1k 10k 5 1.5 100k FREQUENCY (Hz) 2.5 3.5 4.5 5.5 SUPPLY VOLTAGE (V) Figure 29. Figure 30. Sinking Current vs. Supply Voltage Sourcing Current vs. Supply Voltage 30 40 35 25 30 -40°C -40°C ISOURCE (mA) 20 ISINK (mA) 125°C 85°C 25°C 15 85°C 10 25°C 20 15 85°C 125°C 125°C 10 5 0 1.5 25 5 2.5 3.5 4.5 5.5 0 1.5 2.5 3.5 4.5 SUPPLY VOLTAGE (V) SUPPLY VOLTAGE (V) Figure 31. Figure 32. 5.5 Submit Documentation Feedback Copyright © 2008–2013, Texas Instruments Incorporated Product Folder Links: LMP2232 13 LMP2232 SNOSB02C – JANUARY 2008 – REVISED MARCH 2013 www.ti.com Typical Performance Characteristics (continued) Unless otherwise Specified: TA = 25°C, VS = 5V, VCM = VS/2, where VS = V+ - V− Output Swing High vs. Supply Voltage Output Swing Low vs. Supply Voltage 30 25 RL = 10 k: RL = 10 k: VOUT FROM RAIL (mV) VOUT FROM RAIL (mV) 125°C 20 85°C 25°C 15 85°C 20 15 10 2.5 3.5 -40°C 25°C -40°C 10 1.5 125°C 25 4.5 5 1.5 5.5 2.5 3.5 4.5 SUPPLY VOLTAGE (V) SUPPLY VOLTAGE (V) Figure 33. Figure 34. Open Loop Frequency Response 100 Open Loop Frequency Response 120 PHASE 5.5 100 120 PHASE -40°C 25°C 75 90 75 90 -40°C 25 30 60 50 GAIN 30 25 PHASE (°) 60 GAIN GAIN (dB) 125°C 50 PHASE (°) GAIN (dB) 85°C 25°C 0 125°C VS = 5V 0 0 RL = 10 k: 10k 1k 100 100k CL = 20 pF, 50 pF, 100 pF -25 10k 1k 10 100 -30 1M FREQUENCY (Hz) Slew Rate vs. Supply Voltage 60 VS = 5V RL = 100 k: 14 SLEW RATE (V/ms) PHASE MARGIN (°) VS = 1.8V VS = 2.5V 60 VS = 3.3V 40 52 48 RISING EDGE 44 RL = 10 k: 60 FALLING EDGE 56 80 50 20 -30 1M Figure 36. Phase Margin vs. Capacitive Load 70 100k FREQUENCY (Hz) Figure 35. 90 0 RL = 10 k:, 100 k:, 10 M: 85°C CL = 20 pF -25 10 VS = 1.8V, 2.5V, 3.3V, 5V 80 100 40 1.5 2 2.5 3 3.5 4 4.5 CAPACITIVE LOAD (pF) SUPPLY VOLTAGE (V) Figure 37. Figure 38. Submit Documentation Feedback 5 5.5 Copyright © 2008–2013, Texas Instruments Incorporated Product Folder Links: LMP2232 LMP2232 www.ti.com SNOSB02C – JANUARY 2008 – REVISED MARCH 2013 Typical Performance Characteristics (continued) Unless otherwise Specified: TA = 25°C, VS = 5V, VCM = VS/2, where VS = V+ - V− THD+N vs. Amplitude THD+N vs. Frequency 10 1 RL = 10 k: CL = 20 pF 0.1 1 VS = 2V VS = 2.5V THD+N (%) THD+N (%) VS = 2V 0.1 0.01 VS = 3.3V RL = 10 k: VO = VS ± 1V VS = 2.5V 0.01 0.001 VS = 3.3V VS = 5V VS = 5V CL = 20 pF f = 1 kHz 0.001 0.01 0.1 1 10 0.0001 1 100 1k 10k 100k Figure 40. Large Signal Step Response Small Signal Step Response 50 mV/DIV Figure 39. VS = 5V VIN = 2 VPP f = 1 kHz AV = +1 VS = 5V VIN = 200 mVPP f = 1 kHz AV = +1 RL = 10 k: RL = 10 k: CL = 20 pF CL = 20 pF 100 Ps/DIV 100 Ps/DIV Figure 41. Figure 42. Large Signal Step Response Small Signal Step Response 100 mV/DIV 500 mV/DIV 1V/DIV 10 FREQUENCY (Hz) VOUT (VPP) VS = 5V VIN = 400 mVPP f = 1 kHz AV = +10 VS = 5V VIN = 50 mVPP f = 1 kHz AV = +10 RL = 10 k: RL = 10 k: CL = 20 pF CL = 20 pF 100 Ps/DIV 100 Ps/DIV Figure 43. Figure 44. Submit Documentation Feedback Copyright © 2008–2013, Texas Instruments Incorporated Product Folder Links: LMP2232 15 LMP2232 SNOSB02C – JANUARY 2008 – REVISED MARCH 2013 www.ti.com Typical Performance Characteristics (continued) Unless otherwise Specified: TA = 25°C, VS = 5V, VCM = VS/2, where VS = V+ - V− CMRR vs. Frequency Input Voltage Noise vs. Frequency 140 1000 VS = 5V VS = 2.5V 120 VOLTAGE NOISE nV/ Hz) VS = 3.3V CMRR (dB) 100 80 VS = 5V 60 40 20 0 10 100 1k 10k 100k 10 1 1 10 100 1k 10k FREQUENCY (Hz) FREQUENCY (Hz) Figure 45. 16 100 Figure 46. Submit Documentation Feedback Copyright © 2008–2013, Texas Instruments Incorporated Product Folder Links: LMP2232 LMP2232 www.ti.com SNOSB02C – JANUARY 2008 – REVISED MARCH 2013 APPLICATION INFORMATION LMP2232 The LMP2232 is a quad CMOS precision amplifier that offers low offset voltage, low offset voltage drift, and high gain while consuming less than 10 μA of supply current per channel. The LMP2232 is a micropower op amp, consuming only 36 μA of current. Micropower op amps extend the run time of battery powered systems and reduce energy consumption in energy limited systems. The ensured supply voltage range of 1.8V to 5.0V along with the ultra-low supply current extend the battery run time in two ways. The extended ensured power supply voltage range of 1.8V to 5.0V enables the op amp to function when the battery voltage has depleted from its nominal value down to 1.8V. In addition, the lower power consumption increases the life of the battery. The LMP2232 has input referred offset voltage of only ±150 μV maximum at room temperature. This offset is ensured to be less than ±230 μV over temperature. This minimal offset voltage along with very low TCVOS of only 0.3 µV/°C typical allows more accurate signal detection and amplification in precision applications. The low input bias current of only ±20 fA gives the LMP2232 superiority for use in high impedance sensor applications. Bias current of an amplifier flows through source resistance of the sensor and the voltage resulting from this current flow appears as a noise voltage on the input of the amplifier. The low input bias current enables the LMP2232 to interface with high impedance sensors while generating negligible voltage noise. Thus the LMP2232 provides better signal fidelity and a higher signal-to-noise ratio when interfacing with high impedance sensors. Texas Instruments is heavily committed to precision amplifiers and the market segments they serve. Technical support and extensive characterization data is available for sensitive applications or applications with a constrained error budget. The operating voltage range of 1.6V to 5.5V over the extensive temperature range of −40°C to 125°C makes the LMP2232 an excellent choice for low voltage precision applications with extensive temperature requirements. The LMP2232 is offered in the 8-pin VSSOP and 8-pin SOIC packages. These small packages are ideal solutions for area constrained PC boards and portable electronics. TOTAL NOISE CONTRIBUTION The LMP2232 has very low input bias current, very low input current noise, and low input voltage noise for micropower amplifiers. As a result, these amplifiers make great choices for circuits with high impedance sensor applications. Figure 47 shows the typical input noise of the LMP2232 as a function of source resistance where: en denotes the input referred voltage noise ei is the voltage drop across source resistance due to input referred current noise or ei = RS * in et shows the thermal noise of the source resistance eni shows the total noise on the input. Where: eni = 2 2 2 en + ei + et The input current noise of the LMP2232 is so low that it will not become the dominant factor in the total noise unless source resistance exceeds 300 MΩ, which is an unrealistically high value. As is evident in Figure 47, at lower RS values, total noise is dominated by the amplifier’s input voltage noise. Once RS is larger than a 100 kΩ, then the dominant noise factor becomes the thermal noise of RS. As mentioned before, the current noise will not be the dominant noise factor for any practical application. Submit Documentation Feedback Copyright © 2008–2013, Texas Instruments Incorporated Product Folder Links: LMP2232 17 LMP2232 SNOSB02C – JANUARY 2008 – REVISED MARCH 2013 www.ti.com VOLTAGE NOISE DENSITY (nV/ Hz) 1000 eni en 100 et 10 ei 1 0.1 10 100 1k 10k 100k 1M 10M RS (:) Figure 47. Total Input Noise VOLTAGE NOISE REDUCTION The LMP2232 has an input voltage noise of 60nV/√Hz . While this value is very low for micropower amplifiers, this input voltage noise can be further reduced by placing N amplifiers in parallel as shown in Figure 48. The total voltage noise on the output of this circuit is divided by the square root of the number of amplifiers used in this parallel combination. This is because each individual amplifier acts as an independent noise source, and the average noise of independent sources is the quadrature sum of the independent sources divided by the number of sources. For N identical amplifiers, this means: REDUCED INPUT VOLTAGE NOISE = 1 N en1+en2+ = 1 N Nen = = 1 2 2 2 2 +enN N en N en N Figure 48 shows a schematic of this input voltage noise reduction circuit. Typical resistor values are: RG = 10Ω, RF = 1 kΩ, and RO = 1 kΩ. 18 Submit Documentation Feedback Copyright © 2008–2013, Texas Instruments Incorporated Product Folder Links: LMP2232 LMP2232 www.ti.com SNOSB02C – JANUARY 2008 – REVISED MARCH 2013 + V + - VIN VOUT - RG RO V RF + V + RG V - RO RF + V + RG V - RO RF + V + RG V - RO RF Figure 48. Noise Reduction Circuit PRECISION INSTRUMENTATION AMPLIFIER Measurement of very small signals with an amplifier requires close attention to the input impedance of the amplifier, gain of the signal on the inputs, and the gain on each input of the amplifier. This is because the difference of the input signal on the two inputs is of the interest and the common signal is considered noise. A classic circuit implementation is an instrumentation amplifier. Instrumentation amplifiers have a finite, accurate, and stable gain. They also have extremely high input impedances and very low output impedances. Finally they have an extremely high CMRR so that the amplifier can only respond to the differential signal. A typical instrumentation amplifier is shown in Figure 49. V1 + V01 - R2 KR2 R1 R1 R11 = a + R1 V2 + VOUT V02 R2 KR2 Figure 49. Instrumentation Amplifier There are two stages in this amplifier. The last stage, output stage, is a differential amplifier. In an ideal case the two amplifiers of the first stage, the input stage, would be set up as buffers to isolate the inputs. However they cannot be connected as followers because of mismatch of amplifiers. That is why there is a balancing resistor between the two. The product of the two stages of gain will give the gain of the instrumentation amplifier. Ideally, the CMRR should be infinite. However the output stage has a small non-zero common mode gain which results from resistor mismatch. Submit Documentation Feedback Copyright © 2008–2013, Texas Instruments Incorporated Product Folder Links: LMP2232 19 LMP2232 SNOSB02C – JANUARY 2008 – REVISED MARCH 2013 www.ti.com In the input stage of the circuit, current is the same across all resistors. This is due to the high input impedance and low input bias current of the LMP2232. GIVEN: I R = I R 11 1 (1) By Ohm’s Law: VO1 - VO2 = (2R1 + R11) IR 11 = (2a + 1) R11 x IR 11 = (2a + 1) V R 11 (2) However: VR 11 = V1 - V2 (3) So we have: VO1–VO2 = (2a+1)(V1–V2) (4) Now looking at the output of the instrumentation amplifier: KR2 VO = R2 (VO2 - VO1) = -K (VO1 - VO2) (5) Substituting from Equation 4: VO = -K (2a + 1) (V1 - V2) (6) This shows the gain of the instrumentation amplifier to be: −K(2a+1) (7) Typical values for this circuit can be obtained by setting: a = 12 and K= 4. This results in an overall gain of −100. SINGLE SUPPLY STRAIN GAGE BRIDGE AMPLIFIER Strain gauges are popular electrical elements used to measure force or pressure. Strain gauges are subjected to an unknown force which is measured as the deflection on a previously calibrated scale. Pressure is often measured using the same technique; however this pressure needs to be converted into force using an appropriate transducer. Strain gauges are often resistors which are sensitive to pressure or to flexing. Sense resistor values range from tens of ohms to several hundred kilo-ohms. The resistance change which is a result of applied force across the strain gauge might be 1% of its total value. An accurate and reliable system is needed to measure this small resistance change. Bridge configurations offer a reliable method for this measurement. Bridge sensors are formed of four resistors, connected as a quadrilateral. A voltage source or a current source is used across one of the diagonals to excite the bridge while a voltage detector across the other diagonal measures the output voltage. Bridges are mainly used as null circuits or to measure differential voltages. Bridges will have no output voltage if the ratios of two adjacent resistor values are equal. This fact is used in null circuit measurements. These are particularly used in feedback systems which involve electrochemical elements or human interfaces. Null systems force an active resistor, such as a strain gauge, to balance the bridge by influencing the measured parameter. Often in sensor applications at lease one of the resistors is a variable resistor, or a sensor. The deviation of this active element from its initial value is measured as an indication of change in the measured quantity. A change in output voltage represents the sensor value change. Since the sensor value change is often very small, the resulting output voltage is very small in magnitude as well. This requires an extensive and very precise amplification circuitry so that signal fidelity does not change after amplification. Sensitivity of a bridge is the ratio of its maximum expected output change to the excitation voltage change. 20 Submit Documentation Feedback Copyright © 2008–2013, Texas Instruments Incorporated Product Folder Links: LMP2232 LMP2232 www.ti.com SNOSB02C – JANUARY 2008 – REVISED MARCH 2013 Figure 50(a) shows a typical bridge sensor and Figure 50(b) shows the bridge with four sensors. R in Figure 50(b) is the nominal value of the sense resistor and the deviations from R are proportional to the quantity being measured. R1 R + 'R R2 EXCITATION SOURCE VOUT R3 R - 'R EXCITATION SOURCE VOUT R4 R - 'R R + 'R (b) (a) § R ¨1 + 3 ¨ R1 © R4 - VOUT = R2 § ¨ ¨ © VOUT = R1 § R ¨1 + 4 ¨ R2 © § ¨ ¨ © R3 'R R x VSOURCE x VSOURCE Figure 50. Bridge Sensor Instrumentation amplifiers are great for interfacing with bridge sensors. Bridge sensors often sense a very small differential signal in the presence of a larger common mode voltage. Instrumentation amplifiers reject this common mode signal. Figure 51 shows a strain gauge bridge amplifier. In this application one of the LMP2232 amplifiers is used to buffer the LM4140A's precision output voltage. The LM4140A is a precision voltage reference. The other three amplifiers in the LMP2232 are used to form an instrumentation amplifier. This instrumentation amplifier uses the LMP2232's high CMRR and low VOS and TCVOS to accurately amplify the small differential signal generated by the output of the bridge sensor. This amplified signal is then fed into the ADC121S021 which is a 12-bit analog to digital converter. This circuit works on a single supply voltage of 5V. + + V V 3 ½ LMP2232 + 2 6 LM4140A 1 PF 1,4,7,8 V + 0.1 PF V + + ½ LMP2232 - R+'R 10 k: 12 k: R + - V ½ LMP2232 1 k: R 10 PF 40 k: + R+'R VA IN ADC121S021 + V - 12 k: ½ LMP2232 + GND 10 k: 40 k: Figure 51. Strain Gage Bridge Amplifier Submit Documentation Feedback Copyright © 2008–2013, Texas Instruments Incorporated Product Folder Links: LMP2232 21 LMP2232 SNOSB02C – JANUARY 2008 – REVISED MARCH 2013 www.ti.com PORTABLE GAS DETECTION SENSOR Gas sensors are used in many different industrial and medical applications. They generate a current which is proportional to the percentage of a particular gas sensed in an air sample. This current goes through a load resistor and the resulting voltage drop is measured. Depending on the sensed gas and sensitivity of the sensor, the output current can be in the order of tens of microamperes to a few milliamperes. Gas sensor datasheets often specify a recommended load resistor value or they suggest a range of load resistors to choose from. Oxygen sensors are used when air quality or oxygen delivered to a patient needs to be monitored. Fresh air contains 20.9% oxygen. Air samples containing less than 18% oxygen are considered dangerous. Oxygen sensors are also used in industrial applications where the environment must lack oxygen. An example is when food is vacuum packed. There are two main categories of oxygen sensors, those which sense oxygen when it is abundantly present (i.e. in air or near an oxygen tank) and those which detect very small traces of oxygen in ppm. Figure 52 shows a typical circuit used to amplify the output signal of an oxygen detector. The LMP2232 makes an excellent choice for this application as it draws only 36 µA of current and operates on supply voltages down to 1.8V. This application detects oxygen in air. The oxygen sensor outputs a known current through the load resistor. This value changes with the amount of oxygen present in the air sample. Oxygen sensors usually recommend a particular load resistor value or specify a range of acceptable values for the load resistor. Oxygen sensors typically have a life of one to two years. The use of the micropower LMP2232 means minimal power usage by the op amp and it enhances the battery life. Depending on other components present in the circuit design, the battery could last for the entire life of the oxygen sensor. The precision specifications of the LMP2232, such as its very low offset voltage, low TCVOS, low input bias current, low CMRR, and low PSRR are other factors which make the LMP2232 a great choice for this application.. 99 k: + V 1 k: VOUT 1 k: + V - RL OXYGEN SENSOR Figure 52. Precision Oxygen Sensor 22 Submit Documentation Feedback Copyright © 2008–2013, Texas Instruments Incorporated Product Folder Links: LMP2232 LMP2232 www.ti.com SNOSB02C – JANUARY 2008 – REVISED MARCH 2013 REVISION HISTORY Changes from Revision B (March 2013) to Revision C • Page Changed layout of National Data Sheet to TI format .......................................................................................................... 22 Submit Documentation Feedback Copyright © 2008–2013, Texas Instruments Incorporated Product Folder Links: LMP2232 23 PACKAGE OPTION ADDENDUM www.ti.com 11-Apr-2013 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Pins Package Drawing Qty Eco Plan Lead/Ball Finish (2) MSL Peak Temp Op Temp (°C) Top-Side Markings (3) (4) LMP2232AMA/NOPB ACTIVE SOIC D 8 95 Green (RoHS & no Sb/Br) CU SN Level-1-260C-UNLIM -40 to 125 LMP22 32AMA LMP2232AMAE/NOPB ACTIVE SOIC D 8 250 Green (RoHS & no Sb/Br) CU SN Level-1-260C-UNLIM -40 to 125 LMP22 32AMA LMP2232AMAX/NOPB ACTIVE SOIC D 8 2500 Green (RoHS & no Sb/Br) CU SN Level-1-260C-UNLIM -40 to 125 LMP22 32AMA LMP2232AMM/NOPB ACTIVE VSSOP DGK 8 1000 Green (RoHS & no Sb/Br) CU SN Level-1-260C-UNLIM -40 to 125 AK5A LMP2232AMME/NOPB ACTIVE VSSOP DGK 8 250 Green (RoHS & no Sb/Br) CU SN Level-1-260C-UNLIM -40 to 125 AK5A LMP2232AMMX/NOPB ACTIVE VSSOP DGK 8 3500 Green (RoHS & no Sb/Br) CU SN Level-1-260C-UNLIM -40 to 125 AK5A LMP2232BMA/NOPB ACTIVE SOIC D 8 95 Green (RoHS & no Sb/Br) CU SN Level-1-260C-UNLIM -40 to 125 LMP22 32BMA LMP2232BMAE/NOPB ACTIVE SOIC D 8 250 Green (RoHS & no Sb/Br) CU SN Level-1-260C-UNLIM -40 to 125 LMP22 32BMA LMP2232BMAX/NOPB ACTIVE SOIC D 8 2500 Green (RoHS & no Sb/Br) CU SN Level-1-260C-UNLIM -40 to 125 LMP22 32BMA LMP2232BMM/NOPB ACTIVE VSSOP DGK 8 1000 Green (RoHS & no Sb/Br) CU SN Level-1-260C-UNLIM -40 to 125 AK5B LMP2232BMME/NOPB ACTIVE VSSOP DGK 8 250 Green (RoHS & no Sb/Br) CU SN Level-1-260C-UNLIM -40 to 125 AK5B LMP2232BMMX/NOPB ACTIVE VSSOP DGK 8 3500 Green (RoHS & no Sb/Br) CU SN Level-1-260C-UNLIM -40 to 125 AK5B (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device. (2) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability information and additional product content details. TBD: The Pb-Free/Green conversion plan has not been defined. Addendum-Page 1 Samples PACKAGE OPTION ADDENDUM www.ti.com 11-Apr-2013 Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes. Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above. Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material) (3) MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature. (4) Multiple Top-Side Markings will be inside parentheses. Only one Top-Side Marking contained in parentheses and separated by a "~" will appear on a device. If a line is indented then it is a continuation of the previous line and the two combined represent the entire Top-Side Marking for that device. Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release. In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis. Addendum-Page 2 PACKAGE MATERIALS INFORMATION www.ti.com 8-Apr-2013 TAPE AND REEL INFORMATION *All dimensions are nominal Device LMP2232AMAE/NOPB Package Package Pins Type Drawing SOIC SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant D 8 250 178.0 12.4 6.5 5.4 2.0 8.0 12.0 Q1 LMP2232AMAX/NOPB SOIC D 8 2500 330.0 12.4 6.5 5.4 2.0 8.0 12.0 Q1 LMP2232AMM/NOPB VSSOP DGK 8 1000 178.0 12.4 5.3 3.4 1.4 8.0 12.0 Q1 LMP2232AMME/NOPB VSSOP DGK 8 250 178.0 12.4 5.3 3.4 1.4 8.0 12.0 Q1 LMP2232AMMX/NOPB VSSOP DGK 8 3500 330.0 12.4 5.3 3.4 1.4 8.0 12.0 Q1 LMP2232BMAE/NOPB SOIC D 8 250 178.0 12.4 6.5 5.4 2.0 8.0 12.0 Q1 LMP2232BMAX/NOPB SOIC D 8 2500 330.0 12.4 6.5 5.4 2.0 8.0 12.0 Q1 LMP2232BMM/NOPB VSSOP DGK 8 1000 178.0 12.4 5.3 3.4 1.4 8.0 12.0 Q1 LMP2232BMME/NOPB VSSOP DGK 8 250 178.0 12.4 5.3 3.4 1.4 8.0 12.0 Q1 LMP2232BMMX/NOPB VSSOP DGK 8 3500 330.0 12.4 5.3 3.4 1.4 8.0 12.0 Q1 Pack Materials-Page 1 PACKAGE MATERIALS INFORMATION www.ti.com 8-Apr-2013 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) LMP2232AMAE/NOPB SOIC D LMP2232AMAX/NOPB SOIC D 8 250 210.0 185.0 35.0 8 2500 367.0 367.0 35.0 LMP2232AMM/NOPB VSSOP DGK 8 1000 210.0 185.0 35.0 LMP2232AMME/NOPB VSSOP DGK 8 250 210.0 185.0 35.0 LMP2232AMMX/NOPB VSSOP DGK 8 3500 367.0 367.0 35.0 LMP2232BMAE/NOPB SOIC D 8 250 210.0 185.0 35.0 LMP2232BMAX/NOPB SOIC D 8 2500 367.0 367.0 35.0 LMP2232BMM/NOPB VSSOP DGK 8 1000 210.0 185.0 35.0 LMP2232BMME/NOPB VSSOP DGK 8 250 210.0 185.0 35.0 LMP2232BMMX/NOPB VSSOP DGK 8 3500 367.0 367.0 35.0 Pack Materials-Page 2 IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46, latest issue, and to discontinue any product or service per JESD48, latest issue. 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