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. 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. 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. 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. 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 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 Dual-In-Line Package (N) Metal Can Package (H) 00565201 00565215 Order Number LM10BH, LM10CH, LM10CLH or LM10H/883 available per SMA# 5962-8760401 See NS Package Number H08A Order Number LM10CN or LM10CLN See NS Package Number N08E Small Outline Package (WM) 00565216 00565217 Order Number LM10CWM or LM10CWMX See NS Package Number M14B © 2004 National Semiconductor Corporation DS005652 www.national.com LM10 Operational Amplifier and Voltage Reference August 2000 LM10 Absolute Maximum Ratings See AN-450 “Surface Mounting Methods and Their Effect on Product Reliability” for other methods of soldering surface mount devices. (Notes 1, 8) If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. ESD rating is to be determined. Maximum Junction Temperature LM10/LM10B/LM10BL/ LM10C LM10CL 45V 7V ± 40V ± 7V Total Supply Voltage Differential Input Voltage (Note 2) Power Dissipation (Note 3) LM10 150˚C LM10B 100˚C LM10C 85˚C internally limited Operating Ratings continuous Package Thermal Resistance Output Short-circuit Duration (Note 4) θJA Storage-Temp. Range −55˚C to +150˚C Lead Temp. (Soldering, 10 seconds) Metal Can 300˚C Lead Temp. (Soldering, 10 seconds) DIP H Package 150˚C/W N Package 87˚C/W WM Package 90˚C/W θJC 260˚C H Package Vapor Phase (60 seconds) 215˚C Infrared (15 seconds) 220˚C 45˚C/W 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 Max 0.5 4.0 mV 5.0 mV 2.0 nA 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 Large signal voltage VS= ± 20V, IOUT=0 120 gain VOUT= ± 19.95V 80 Shunt gain (Note 7) VS= ± 20V, VOUT= ± 19.4V 50 IOUT= ± 20 mA ( ± 15 mA) 20 VS= ± 0.6V (0.65V), IOUT= ± 2 mA 1.5 VOUT= ± 0.4V ( ± 0.3V), VCM=−0.4V 0.5 1.2V (1.3V) ≤VOUT≤40V, 14 150 80 25 1.0 10 40 nA V/mV kΩ V/mV 130 V/mV 3.0 V/mV 33 V/mV V/mV 0.75 33 nA 400 15 3.0 nA 30 kΩ 50 130 3.0 400 115 400 Units Typ V/mV RL=1.1 kΩ 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 rejection VS= ± 20V 87 Supply-voltage −0.2V≥V−≥−39V 90 rejection V+=1.0V (1.1V) 84 1.0V (1.1V) ≤V ≤39.8V 96 V−=−0.2V 90 + + 6 25 6 V/mV 25 4 102 90 96 87 V/mV 102 dB 96 dB 87 dB 84 106 93 V/mV dB 106 dB 90 dB Offset voltage drift 2.0 5.0 µV/˚C Offset current drift 2.0 5.0 pA/˚C 60 90 pA/˚C Bias current drift www.national.com TC < 100˚C 2 LM10 Electrical Characteristics (Continued) TJ=25˚C, TMIN≤TJ≤TMAX (Boldface type refers to limits over temperature range) (Note 5) Parameter Conditions LM10/LM10B Min Line regulation 1.2V (1.3V) ≤VS≤40V Max 0.001 0.003 0≤IREF≤1.0 mA, VREF=200 mV Load regulation 0≤IREF≤1.0 mA 0.01 0.2V≤VREF≤35V Min 0.1 Max 0.001 0.008 %/V 0.01 %/V 0.15 % 0.01 0.15 50 75 0.2 25 23 70 195 voltage 194 200 Feedback current 20 205 190 206 189 50 V/mV 200 22 65 Reference drift 0.002 Supply current 270 15 mV 211 mV 75 nA 0.003 300 500 1.2V (1.3V) ≤VS≤40V 210 90 400 75 % V/mV 15 Feedback sense Supply current change Units Typ 0.006 V+−VREF≥1.0V (1.1V) Amplifier gain LM10C Typ 15 nA %/˚C 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 Max 0.5 4.0 mV 5.0 mV 2.0 nA 3.0 nA 30 nA 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 VS= ± 3.25V, IOUT=0 60 gain VOUT= ± 3.2V 40 VS= ± 3.25V, IOUT=10 mA VOUT= ± 2.75 V VS= ± 0.6V (0.65V), IOUT= ± 2 mA VOUT= ± 0.4V ( ± 0.3V), VCM=−0.4V 10 8 0.1 mA≤IOUT≤10 mA 4 Common-mode −3.25V≤VCM≤2.4V (2.25V) 89 rejection VS= ± 3.25V 83 Supply-voltage −0.2V≥V−≥−5.4V 86 rejection V+=1.0V (1.2V) 80 1.0V (1.1V) ≤V+≤6.3V 94 V−=0.2V 88 + kΩ 300 V/mV kΩ 25 25 5 V/mV 25 V/mV 3.0 V/mV 3 3.0 1.0 0.5 1.5V≤V ≤6.5V, RL=500Ω Shunt gain (Note 7) 40 V/mV 0.75 30 6 V/mV 30 V/mV 4 102 80 96 80 V/mV 102 dB 96 dB 106 dB 74 dB 74 106 80 nA 400 115 300 4 1.5 40 150 150 Large signal voltage Units Typ dB 74 dB Offset voltage drift 2.0 5.0 µV/˚C Offset current drift 2.0 5.0 pA/˚C Bias current drift Line regulation 60 1.2V (1.3V) ≤VS≤6.5V 0.001 0≤IREF≤0.5 mA, VREF=200 mV 90 0.01 0.02 3 0.001 pA/˚C 0.02 %/V 0.03 %/V www.national.com LM10 Electrical Characteristics (Continued) TJ=25˚C, TMIN≤TJ≤TMAX (Boldface type refers to limits over temperature range) (Note 5) Parameter Conditions LM10BL Min Load regulation 0≤IREF≤0.5 mA Typ 0.01 V+−VREF≥1.0V (1.1V) Amplifier gain LM10CL Max Min 0.1 Max 0.01 0.15 % 0.2 % 0.15 0.2V≤VREF≤5.5V 30 70 20 20 Feedback sense voltage 195 70 V/mV 15 200 194 Feedback current Units Typ 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 0.003 400 500 280 %/˚C 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 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. Common-mode rejection: The ratio of the input voltage range to the change in offset voltage between the extremes. 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. 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. www.national.com 4 LM10 Typical Performance Characteristics (Op Amp) Input Current Common Mode Limits 00565219 00565218 Output Voltage Drift Input Noise Voltage 00565220 00565221 DC Voltage Gain Transconductance 00565222 00565223 5 www.national.com LM10 Typical Performance Characteristics (Op Amp) Output Saturation Characteristics (Continued) Output Saturation Characteristics 00565225 00565224 Output Saturation Characteristics Minimum Supply Voltage 00565227 00565226 Minimum Supply Voltage Minimum Supply Voltage 00565228 www.national.com 00565229 6 Frequency Response LM10 Typical Performance Characteristics (Op Amp) (Continued) Output Impedance 00565230 00565231 Typical Stability Range Large Signal Response 00565233 00565232 Comparator Response Time For Various Input Overdrives Comparator Response Time For Various Input Overdrives 00565234 00565235 7 www.national.com LM10 Typical Performance Characteristics (Op Amp) Follower Pulse Response (Continued) Noise Rejection 00565236 00565237 Rejection Slew Limiting Supply Current 00565239 00565238 Thermal Gradient Feedback Thermal Gradient Cross-coupling 00565240 www.national.com 00565241 8 Shunt Gain LM10 Typical Performance Characteristics (Op Amp) (Continued) Shunt Gain 00565243 00565242 Shunt Gain Shunt Gain 00565244 00565242 Shunt Gain Shunt Gain 00565243 00565244 9 www.national.com LM10 Typical Performance Characteristics (Reference) Line Regulation Load Regulation 00565245 00565246 Reference Noise Voltage Minimum Supply Voltage 00565248 00565247 Output Saturation Typical Stability Range 00565249 www.national.com 00565250 10 LM10 Typical Applications (Note 10) (Pin numbers are for devices in 8-pin packages) Op Amp Offset Adjustment Limited Range With Boosted Reference Standard 00565251 Limited Range 00565253 00565252 Positive Regulators (Note 9) Low Voltage Best Regulation 00565254 00565255 11 www.national.com LM10 Typical Applications (Note 10) (Pin numbers are for devices in 8-pin packages) (Continued) Zero Output 00565256 Note 9: Use only electrolytic output capacitors. Current Regulator Shunt Regulator 00565257 00565258 Required For Capacitive Loading Negative Regulator Precision Regulator 00565259 *Electrolytic 00565260 www.national.com 12 LM10 Typical Applications (Note 10) (Pin numbers are for devices in 8-pin packages) (Continued) Laboratory Power Supply 00565261 *VOUT=10−4 R3 HV Regulator 00565262 00565284 13 www.national.com LM10 Typical Applications (Note 10) (Pin numbers are for devices in 8-pin packages) (Continued) Protected HV Regulator 00565263 Flame Detector Light Level Sensor 00565264 *800˚C Threshold Is Established By Connecting Balance To VREF. 00565265 *Provides Hysteresis Remote Amplifier 00565266 www.national.com 14 LM10 Typical Applications (Note 10) (Pin numbers are for devices in 8-pin packages) (Continued) Remote Thermocouple Amplifier 00565267 Transmitter for Bridge Sensor 00565268 15 www.national.com LM10 Typical Applications (Note 10) (Pin numbers are for devices in 8-pin packages) (Continued) Precision Thermocouple Transmitter 00565269 10 mA≤IOUT≤50 mA 500˚C≤TP≤1500˚C *Gain Trim Resistance Thermometer Transmitter 00565270 www.national.com 16 LM10 Typical Applications (Note 10) (Pin numbers are for devices in 8-pin packages) (Continued) Optical Pyrometer 00565271 ††Level-shift Trim *Scale Factor Trim †Copper Wire Wound Thermocouple Transmitter Logarithmic Light Sensor 00565273 1 mA≤IOUT≤5 mA ‡ 50 µA≤ID≤500 µA ††Center Scale Trim †Scale Factor Trim *Copper Wire Wound 00565272 200˚C≤Tp≤700˚C 1 mA≤IOUT≤5 mA †Gain Trim 17 www.national.com LM10 Typical Applications (Note 10) (Pin numbers are for devices in 8-pin packages) Battery-level Indicator Battery-threshold Indicator 00565274 00565275 Single-cell Voltage Monitor Double-ended Voltage Monitor 00565276 00565277 Flashes Above 1.2V Flash Rate Increases Rate Increases With Above 6V and Below 15V Voltage Meter Amplifier 00565278 INPUT 10 mV, 100nA FULL-SCALE www.national.com (Continued) 18 LM10 Typical Applications (Note 10) (Pin numbers are for devices in 8-pin packages) (Continued) Thermometer 00565279 *Trim For Span †Trim For Zero Light Meter 00565280 1≤λ/λ0≤105 19 www.national.com LM10 Typical Applications (Note 10) (Pin numbers are for devices in 8-pin packages) Microphone Amplifier 00565281 ZOUT∼680Ω @ 5 kHz AV≤1k f1∼100 Hz f2∼5 kHz RL∼500 *Max Gain Trim Isolated Voltage Sensor 00565282 †Controls “Loop Gain” *Optional Frequency Shaping www.national.com 20 (Continued) LM10 Typical Applications (Note 10) (Pin numbers are for devices in 8-pin packages) (Continued) Light-level Controller 00565283 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. 21 www.national.com www.national.com 22 Operational Amplifier Schematic (Pin numbers are for 8-pin packages) 00565213 LM10 Reference and Internal Regulator (Pin numbers are for 8-pin packages) 00565214 LM10 23 www.national.com LM10 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 or LM10CWMX NS Package Number M14B www.national.com 24 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 AND GENERAL COUNSEL 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. 2. 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