LM10 Operational Amplifier and Voltage Reference General Description The LM10 series are monolithic linear ICs consisting of a precision reference, an adjustable reference buffer and an independent, high quality op amp. The unit can operate from a total supply voltage as low as 1.1V or as high as 40V, drawing only 270µA. A complementary output stage swings within 15 mV of the supply terminals or will deliver ± 20 mA output current with ± 0.4V saturation. Reference output can be as low as 200 mV. The circuit is recommended for portable equipment and is completely specified for operation from a single power cell. In contrast, high output-drive capability, both voltage and current, along with thermal overload protection, suggest it in demanding general-purpose applications. The device is capable of operating in a floating mode, independent of fixed supplies. It can function as a remote comparator, signal conditioner, SCR controller or transmitter for analog signals, delivering the processed signal on the same line used to supply power. It is also suited for operation in a wide range of voltage- and current-regulator applications, from low voltages to several hundred volts, providing greater precision than existing ICs. This series is available in the three standard temperature ranges, with the commercial part having relaxed limits. In addition, a low-voltage specification (suffix “L”) is available in the limited temperature ranges at a cost savings. Features n n n n n n input offset voltage: 2.0 mV (max) input offset current: 0.7 nA (max) input bias current: 20 nA (max) reference regulation: 0.1% (max) offset voltage drift: 2µV/˚C reference drift: 0.002%/˚C Connection and Functional Diagrams Metal Can Package (H) Small Outline Package (WM) DS005652-17 DS005652-1 Order Number LM10BH, LM10CH, LM10CLH or LM10H/883 available per SMA# 5962-8760401 See NS Package Number H08A Order Number LM10CWM See NS Package Number M14B Dual-In-Line Package (N) DS005652-16 DS005652-15 Order Number LM10CN or LM10CLN See NS Package Number N08E © 1999 National Semiconductor Corporation DS005652 www.national.com LM10 Operational Amplifier and Voltage Reference May 1998 Absolute Maximum Ratings (Notes 1, 8) ESD rating is to be determined. If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Maximum Junction Temperature LM10 LM10B LM10C Total Supply Voltage Differential Input Voltage (Note 2) Power Dissipation (Note 3) Output Short-circuit Duration (Note 4) Storage-Temp. Range Lead Temp. (Soldering, 10 seconds) Metal Can Lead Temp. (Soldering, 10 seconds) DIP Vapor Phase (60 seconds) Infrared (15 seconds) LM10/LM10B/ LM10BL/ LM10C LM10CL 45V 7V ± 40V ± 7V internally limited continuous −55˚C to +150˚C 150˚C 100˚C 85˚C Operating Ratings Package Thermal Resistance θJA H Package N Package WM Package θJC H Package 300˚C 260˚C 215˚C 220˚C 150˚C/W 87˚C/W 90˚C/W 45˚C/W See AN-450 “Surface Mounting Methods and Their Effect on Product Reliability” for other methods of soldering surface mount devices. Electrical Characteristics TJ = 25˚C, TMIN≤TJ≤TMAX (Boldface type refers to limits over temperature range) (Note 5) Parameter Conditions LM10/LM10B Min Input offset voltage LM10C Typ Max 0.3 2.0 Min Typ 0.5 3.0 Input offset current 0.25 (Note 6) 0.7 0.4 1.5 Input bias current 10 20 12 30 Input resistance 250 500 150 150 Large signal voltage gain VS = ± 20V, IOUT = 0 VOUT = ± 19.95V 120 VS = ± 20V, VOUT = ± 19.4V IOUT = ± 20 mA ( ± 15 mA) 50 Shunt gain (Note 7) 14 0.1 mA≤IOUT≤5 mA 6 1.5V≤V+≤40V, RL = 250Ω 8 0.1 mA≤IOUT≤20 mA 4 Common-mode −20V≤VCM≤19.15V (19V) 93 VS = ± 20V 87 Supply-voltage −0.2V≥V−≥−39V V+ = 1.0V (1.1V) 90 96 Offset current drift Line regulation 1.2V (1.3V) ≤VS≤40V 3.0 1.0 2.0 nA 3.0 nA 30 nA 40 nA 400 kΩ 400 V/mV 130 V/mV 3.0 V/mV 33 V/mV kΩ V/mV 15 V/mV 0.75 33 10 V/mV 6 25 6 V/mV 25 V/mV 4 102 90 V/mV 102 dB 96 dB 106 dB 2.0 5.0 µV/˚C 2.0 5.0 pA/˚C 60 90 pA/˚C 87 96 87 106 93 dB 84 dB 90 0.003 0.006 2 mV mV 50 0.001 0≤IREF≤1.0 mA, VREF = 200 mV www.national.com 25 90 Offset voltage drift TC < 100˚C 130 84 1.0V (1.1V) ≤V+≤39.8V V− = −0.2V Bias current drift 80 0.5 1.2V (1.3V) ≤VOUT≤40V, RL = 1.1 kΩ rejection rejection 400 20 1.5 4.0 5.0 115 80 VS = ± 0.6V (0.65V), IOUT = ± 2 mA VOUT = ± 0.4V ( ± 0.3V), VCM = −0.4V Units Max dB 0.001 0.008 %/V 0.01 %/V Electrical Characteristics (Continued) TJ = 25˚C, TMIN≤TJ≤TMAX (Boldface type refers to limits over temperature range) (Note 5) Parameter Conditions LM10/LM10B Min Load regulation 0≤IREF≤1.0 mA Typ 0.01 V+−VREF≥1.0V (1.1V) Amplifier gain LM10C Max Min 0.1 Max 0.01 0.15 % 0.2 % 0.15 0.2V≤VREF≤35V 50 75 25 23 Feedback sense 195 voltage 194 Feedback current 70 200 20 Reference drift 0.002 Supply current 270 205 190 206 189 50 V/mV 200 22 15 210 mV 211 mV 75 nA 90 nA %/˚C 0.003 400 300 500 1.2V (1.3V) ≤VS≤40V V/mV 15 65 Supply current change Units Typ 75 15 500 µA 570 µA 75 µA Electrical Characteristics TJ = 25˚C, TMIN≤TJ≤TMAX (Boldface type refers to limits over temperature range) (Note 5) Parameter Conditions LM10BL Min Input offset voltage LM10CL Typ Max 0.3 2.0 Min Typ 0.5 3.0 Input offset current 0.1 (Note 6) 0.7 0.2 1.5 Input bias current 10 20 12 30 Input resistance 250 500 150 150 Large signal voltage gain Shunt gain (Note 7) Common-mode rejection Supply-voltage rejection VS = ± 3.25V, IOUT = 0 VOUT = ± 3.2V 60 VS = ± 3.25V, IOUT = 10 mA VOUT = ± 2.75 V 10 VS = ± 0.6V (0.65V), IOUT = ± 2 mA VOUT = ± 0.4V ( ± 0.3V), VCM = −0.4V 1.5 300 40 5 3.0 1.0 4 −3.25V≤VCM≤2.4V (2.25V) VS = ± 3.25V 89 −0.2V≥V−≥−5.4V V+ = 1.0V (1.2V) 86 1.0V (1.1V) ≤V+≤6.3V V− = 0.2V 94 2.0 nA 3.0 nA 30 nA 40 nA 400 kΩ 300 V/mV 25 V/mV 3.0 V/mV kΩ V/mV 3 0.5 0.1 mA≤IOUT≤10 mA mV mV 25 25 4 8 4.0 5.0 115 40 1.5V≤V+≤6.5V, RL = 500Ω Units Max V/mV 0.75 30 6 V/mV 30 V/mV 4 102 80 83 V/mV 102 dB 96 dB 106 dB 74 96 80 106 80 80 dB 74 88 dB 74 dB Offset voltage drift 2.0 5.0 µV/˚C Offset current drift 2.0 5.0 pA/˚C Bias current drift 60 90 Line regulation Load regulation 1.2V (1.3V) ≤VS≤6.5V 0≤IREF≤0.5 mA, VREF = 200 mV 0.001 0≤IREF≤0.5 mA 0.01 0.01 0.001 0.02 V+−VREF≥1.0V (1.1V) 0.1 0.15 3 0.01 pA/˚C 0.02 %/V 0.03 %/V 0.15 % 0.2 % www.national.com Electrical Characteristics (Continued) TJ = 25˚C, TMIN≤TJ≤TMAX (Boldface type refers to limits over temperature range) (Note 5) Parameter Amplifier gain Conditions LM10BL 0.2V≤VREF≤5.5V Min Typ 30 70 LM10CL Max 20 Feedback sense voltage 195 Typ 20 70 Units Max V/mV 15 200 194 Feedback current Min 20 205 190 206 189 50 V/mV 200 22 65 Reference drift 0.002 Supply current 260 210 mV 211 mV 75 nA 90 nA %/˚C 0.003 400 500 280 500 µA 570 µA Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is functional, but do not guarantee specific performance limits. Note 2: The Input voltage can exceed the supply voltages provided that the voltage from the input to any other terminal does not exceed the maximum differential input voltage and excess dissipation is accounted for when VIN < V−. Note 3: The maximum, operating-junction temperature is 150˚C for the LM10, 100˚C for the LM10B(L) and 85˚C for the LM10C(L). At elevated temperatures, devices must be derated based on package thermal resistance. Note 4: Internal thermal limiting prevents excessive heating that could result in sudden failure, but the IC can be subjected to accelerated stress with a shorted output and worst-case conditions. Note 5: These specifications apply for V−≤VCM≤V+−0.85V (1.0V), 1.2V (1.3V) < VS≤VMAX, VREF = 0.2V and 0≤IREF≤1.0 mA, unless otherwise specified: VMAX = 40V for the standard part and 6.5V for the low voltage part. Normal typeface indicates 25˚C limits. Boldface type indicates limits and altered test conditions for full-temperature-range operation; this is −55˚C to 125˚C for the LM10, −25˚C to 85˚C for the LM10B(L) and 0˚C to 70˚C for the LM10C(L). The specifications do not include the effects of thermal gradients (τ1 ≅ 20 ms), die heating (τ2 ≅ 0.2s) or package heating. Gradient effects are small and tend to offset the electrical error (see curves). Note 6: For TJ > 90˚C, IOS may exceed 1.5 nA for VCM = V−. With TJ = 125˚C and V−≤VCM≤V−+0.1V, IOS≤5 nA. Note 7: This defines operation in floating applications such as the bootstrapped regulator or two-wire transmitter. Output is connected to the V+ terminal of the IC and input common mode is referred to V− (see typical applications). Effect of larger output-voltage swings with higher load resistance can be accounted for by adding the positive-supply rejection error. Note 8: Refer to RETS10X for LM10H military specifications. Definition of Terms Supply-voltage rejection: The ratio of the specified supply-voltage change to the change in offset voltage between the extremes. Line regulation: The average change in reference output voltage over the specified supply voltage range. Load regulation: The change in reference output voltage from no load to that load specified. Feedback sense voltage: The voltage, referred to V−, on the reference feedback terminal while operating in regulation. Reference amplifier gain: The ratio of the specified reference output change to the change in feedback sense voltage required to produce it. Feedback current: The absolute value of the current at the feedback terminal when operating in regulation. Input offset voltage: That voltage which must be applied between the input terminals to bias the unloaded output in the linear region. Input offset current: The difference in the currents at the input terminals when the unloaded output is in the linear region. Input bias current: The absolute value of the average of the two input currents. Input resistance: The ratio of the change in input voltage to the change in input current on either input with the other grounded. Large signal voltage gain: The ratio of the specified output voltage swing to the change in differential input voltage required to produce it. Shunt gain: The ratio of the specified output voltage swing to the change in differential input voltage required to produce it with the output tied to the V+ terminal of the IC. The load and power source are connected between the V+ and V− terminals, and input common-mode is referred to the V− terminal. Supply current: The current required from the power source to operate the amplifier and reference with their outputs unloaded and operating in the linear range. Common-mode rejection: The ratio of the input voltage range to the change in offset voltage between the extremes. www.national.com 4 Typical Performance Characteristics (Op Amp) Input Current Output Voltage Drift Common Mode Limits DS005652-19 DS005652-18 Input Noise Voltage DC Voltage Gain Transconductance DS005652-22 DS005652-21 Output Saturation Characteristics DS005652-20 Output Saturation Characteristics DS005652-24 Output Saturation Characteristics DS005652-25 5 DS005652-23 DS005652-26 www.national.com Typical Performance Characteristics (Op Amp) Minimum Supply Voltage (Continued) Minimum Supply Voltage Minimum Supply Voltage Frequency Response Output Impedance DS005652-30 Large Signal Response DS005652-29 DS005652-28 DS005652-27 Typical Stability Range DS005652-32 DS005652-31 Comparator Response Time For Various Input Overdrives Comparator Response Time For Various Input Overdrives DS005652-33 DS005652-34 DS005652-35 www.national.com 6 Typical Performance Characteristics (Op Amp) Follower Pulse Response (Continued) Rejection Slew Limiting Noise Rejection DS005652-37 DS005652-36 Supply Current Thermal Gradient Feedback DS005652-38 Thermal Gradient Cross-coupling DS005652-39 DS005652-40 Shunt Gain DS005652-41 Shunt Gain Shunt Gain DS005652-43 DS005652-42 7 DS005652-44 www.national.com Typical Performance Characteristics (Reference) Line Regulation Load Regulation Reference Noise Voltage DS005652-45 Minimum Supply Voltage DS005652-46 Output Saturation Typical Stability Range DS005652-48 Typical Applications (Note 10) DS005652-47 DS005652-49 DS005652-50 (Pin numbers are for devices in 8-pin packages) Op Amp Offset Adjustment Standard Limited Range Limited Range With Boosted Reference DS005652-51 DS005652-52 DS005652-53 www.national.com 8 Typical Applications (Note 10) (Pin numbers are for devices in 8-pin packages) (Continued) Positive Regulators (Note 9) Low Voltage Zero Output Best Regulation DS005652-54 DS005652-55 DS005652-56 Note 9: Use only electrolytic output capacitors. Current Regulator Shunt Regulator DS005652-57 DS005652-58 Required For Capacitive Loading Negative Regulator Precision Regulator DS005652-59 *Electrolytic DS005652-60 9 www.national.com Typical Applications (Note 10) (Pin numbers are for devices in 8-pin packages) (Continued) Laboratory Power Supply DS005652-61 *VOUT = 10−4 R3 HV Regulator DS005652-62 DS005652-84 www.national.com 10 Typical Applications (Note 10) (Pin numbers are for devices in 8-pin packages) (Continued) Protected HV Regulator DS005652-63 Flame Detector Light Level Sensor DS005652-64 *800˚C Threshold Is Established By Connecting Balance To VREF. DS005652-65 *Provides Hysteresis Remote Amplifier Remote Thermocouple Amplifier DS005652-66 DS005652-67 11 www.national.com Typical Applications (Note 10) (Pin numbers are for devices in 8-pin packages) (Continued) Transmitter for Bridge Sensor DS005652-68 Precision Thermocouple Transmitter DS005652-69 10 mA≤IOUT≤50 mA 500˚C≤TP≤1500˚C *Gain Trim www.national.com 12 Typical Applications (Note 10) (Pin numbers are for devices in 8-pin packages) (Continued) Optical Pyrometer Resistance Thermometer Transmitter DS005652-70 DS005652-71 ††Level-shift Trim *Scale Factor Trim †Copper Wire Wound Thermocouple Transmitter Logarithmic Light Sensor DS005652-73 1 mA≤IOUT≤5 mA ‡ 50 µA≤ID≤500 µA ††Center Scale Trim †Scale Factor Trim *Copper Wire Wound DS005652-72 200˚C≤Tp≤700˚C 1 mA≤IOUT≤5 mA †Gain Trim 13 www.national.com Typical Applications (Note 10) (Pin numbers are for devices in 8-pin packages) (Continued) Battery-threshold Indicator Battery-level Indicator DS005652-74 DS005652-75 Single-cell Voltage Monitor Double-ended Voltage Monitor DS005652-76 DS005652-77 Flashes Above 1.2V Rate Increases With Voltage Flash Rate Increases Above 6V and Below 15V Meter Amplifier DS005652-78 INPUT 10 mV, 100nA FULL-SCALE www.national.com 14 Typical Applications (Note 10) (Pin numbers are for devices in 8-pin packages) (Continued) Thermometer DS005652-79 *Trim For Span †Trim For Zero Light Meter DS005652-80 1≤λ/λ0≤105 15 www.national.com Typical Applications (Note 10) (Pin numbers are for devices in 8-pin packages) (Continued) Microphone Amplifier DS005652-81 ZOUTz680Ω @ 5 kHz AV≤1k f1z100 Hz f2z5 kHz RLz500 *Max Gain Trim Isolated Voltage Sensor DS005652-82 †Controls “Loop Gain” *Optional Frequency Shaping www.national.com 16 Typical Applications (Note 10) (Pin numbers are for devices in 8-pin packages) (Continued) Light-level Controller DS005652-83 Note 10: Circuit descriptions available in application note AN-211. Application Hints With heavy amplifier loading to V−, resistance drops in the V− lead can adversely affect reference regulation. Lead resistance can approach 1Ω. Therefore, the common to the reference circuitry should be connected as close as possible to the package. 17 www.national.com (Pin numbers are for 8-pin packages) DS005652-13 Operational Amplifier Schematic www.national.com 18 (Pin numbers are for 8-pin packages) DS005652-14 Reference and Internal Regulator 19 www.national.com Physical Dimensions inches (millimeters) unless otherwise noted Metal Can Package (H) Order Number LM10BH, LM10CH, LM10CLH or LM10H/883 NS Package Number H08A S.O. Package (WM) Order Number LM10CWM NS Package Number M14B www.national.com 20 LM10 Operational Amplifier and Voltage Reference Physical Dimensions inches (millimeters) unless otherwise noted (Continued) Dual-In-Line Package (N) Order Number LM10CN or LM10CLN NS Package Number N08E LIFE SUPPORT POLICY NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF NATIONAL SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury to the user. 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