LM10

LM10 Operational Amplifier and Voltage Reference August 2000 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) Dual-In-Line Package (N) 00565201 Order Number LM10BH, LM10CH, LM10CLH or LM10H/883 available per SMA# 5962-8760401 See NS Package Number H08A Small Outline Package (WM) 00565215 Order Number LM10CN or LM10CLN See NS Package Number N08E 00565216 00565217 Order Number LM10CWM or LM10CWMX See NS Package Number M14B © 2004 National Semiconductor Corporation DS005652 www.national.com LM10 Absolute Maximum Ratings 8) (Notes 1, See AN-450 “Surface Mounting Methods and Their Effect on Product Reliability” for other methods of soldering surface mount devices. ESD rating is to be determined. Maximum Junction Temperature LM10 LM10B LM10C 150˚C 100˚C 85˚C If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. LM10/LM10B/LM10BL/ 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) 300˚C 260˚C 215˚C 220˚C 45V LM10CL 7V ± 40V ± 7V internally limited continuous −55˚C to +150˚C Operating Ratings Package Thermal Resistance θJA H Package N Package WM Package θJC H Package 45˚C/W 150˚C/W 87˚C/W 90˚C/W Electrical Characteristics TJ=25˚C, TMIN≤TJ≤TMAX (Boldface type refers to limits over temperature range) (Note 5) Parameter Input offset voltage Input offset current (Note 6) Input bias current Input resistance Large signal voltage gain VS= ± 20V, IOUT=0 VOUT= ± 19.95V VS= ± 20V, VOUT= ± 19.4V IOUT= ± 20 mA ( ± 15 mA) VS= ± 0.6V (0.65V), IOUT= ± 2 mA VOUT= ± 0.4V ( ± 0.3V), VCM=−0.4V Shunt gain (Note 7) 1.2V (1.3V) ≤VOUT≤40V, RL=1.1 kΩ 0.1 mA≤IOUT≤5 mA 1.5V≤V ≤40V, RL=250Ω + Conditions Min LM10/LM10B Typ 0.3 0.25 10 250 150 120 80 50 20 1.5 0.5 14 6 8 4 93 87 90 84 96 90 2.0 2.0 106 96 102 25 33 3.0 130 400 500 Max 2.0 3.0 0.7 1.5 20 30 150 115 80 50 25 15 1.0 0.75 10 6 6 4 90 87 87 84 93 90 Min LM10C Typ 0.5 0.4 12 400 400 130 3.0 33 Max 4.0 5.0 2.0 3.0 30 40 Units mV mV nA nA nA nA kΩ kΩ V/mV V/mV V/mV V/mV V/mV V/mV V/mV V/mV 25 102 96 106 5.0 5.0 90 V/mV V/mV dB dB dB dB dB dB µV/˚C pA/˚C pA/˚C 0.1 mA≤IOUT≤20 mA Common-mode rejection Supply-voltage rejection −20V≤VCM≤19.15V (19V) VS= ± 20V −0.2V≥V−≥−39V V+=1.0V (1.1V) 1.0V (1.1V) ≤V ≤39.8V + V−=−0.2V Offset voltage drift Offset current drift Bias current drift TC < 100˚C 60 www.national.com 2 LM10 Electrical Characteristics Parameter Line regulation Load regulation Amplifier gain Feedback sense voltage Feedback current Reference drift Supply current Supply current change (Continued) TJ=25˚C, TMIN≤TJ≤TMAX (Boldface type refers to limits over temperature range) (Note 5) Conditions Min 1.2V (1.3V) ≤VS≤40V 0≤IREF≤1.0 mA, VREF=200 mV 0≤IREF≤1.0 mA V+−VREF≥1.0V (1.1V) 0.2V≤VREF≤35V 50 23 195 194 20 0.002 270 1.2V (1.3V) ≤VS≤40V 15 400 500 75 15 200 205 206 50 65 0.003 300 500 570 75 75 0.01 LM10/LM10B Typ 0.001 Max 0.003 0.006 0.1 0.15 25 15 190 189 22 200 210 211 75 90 70 0.01 Min LM10C Typ 0.001 Max 0.008 0.01 0.15 0.2 %/V %/V % % V/mV V/mV mV mV nA nA %/˚C µA µA µA Units Electrical Characteristics TJ=25˚C, TMIN≤TJ≤TMAX (Boldface type refers to limits over temperature range) (Note 5) Parameter Input offset voltage Input offset current (Note 6) Input bias current Input resistance Large signal voltage gain VS= ± 3.25V, IOUT=0 VOUT= ± 3.2V 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 Shunt gain (Note 7) Common-mode rejection Supply-voltage rejection 1.5V≤V ≤6.5V, RL=500Ω + Conditions Min LM10BL Typ 0.3 0.1 10 250 150 60 40 10 4 1.5 0.5 8 4 89 83 86 80 94 88 2.0 2.0 60 106 96 102 30 3.0 25 300 500 Max 2.0 3.0 0.7 1.5 20 30 150 115 40 25 5 3 1.0 0.75 6 4 80 74 80 74 80 74 Min LM10CL Typ 0.5 0.2 12 400 300 25 3.0 30 102 96 106 5.0 5.0 90 0.01 0.02 0.001 0.02 0.03 Max 4.0 5.0 2.0 3.0 30 40 Units mV mV nA nA nA nA kΩ kΩ V/mV V/mV V/mV V/mV V/mV V/mV V/mV V/mV dB dB dB dB dB dB µV/˚C pA/˚C pA/˚C %/V %/V 0.1 mA≤IOUT≤10 mA −3.25V≤VCM≤2.4V (2.25V) VS= ± 3.25V −0.2V≥V−≥−5.4V V+=1.0V (1.2V) 1.0V (1.1V) ≤V+≤6.3V V−=0.2V Offset voltage drift Offset current drift Bias current drift Line regulation 1.2V (1.3V) ≤VS≤6.5V 0≤IREF≤0.5 mA, VREF=200 mV 0.001 3 www.national.com LM10 Electrical Characteristics Parameter Load regulation Amplifier gain Feedback sense voltage Feedback current Reference drift Supply current (Continued) TJ=25˚C, TMIN≤TJ≤TMAX (Boldface type refers to limits over temperature range) (Note 5) Conditions Min 0≤IREF≤0.5 mA V+−VREF≥1.0V (1.1V) 0.2V≤VREF≤5.5V 30 20 195 194 20 0.002 260 400 500 200 205 206 50 65 0.003 280 500 570 70 LM10BL Typ 0.01 Max 0.1 0.15 20 15 190 189 22 200 210 211 75 90 70 Min LM10CL Typ 0.01 Max 0.15 0.2 % % V/mV V/mV mV mV nA nA %/˚C µA µA Units 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 00565218 00565219 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 00565224 00565225 Output Saturation Characteristics Minimum Supply Voltage 00565226 00565227 Minimum Supply Voltage Minimum Supply Voltage 00565228 00565229 www.national.com 6 LM10 Typical Performance Characteristics (Op Amp) Frequency Response (Continued) Output Impedance 00565230 00565231 Typical Stability Range Large Signal Response 00565232 00565233 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 00565238 00565239 Thermal Gradient Feedback Thermal Gradient Cross-coupling 00565240 00565241 www.national.com 8 LM10 Typical Performance Characteristics (Op Amp) Shunt Gain (Continued) Shunt Gain 00565242 00565243 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 00565247 00565248 Output Saturation Typical Stability Range 00565249 00565250 www.national.com 10 LM10 Typical Applications (Note 10) Op Amp Offset Adjustment Standard (Pin numbers are for devices in 8-pin packages) Limited Range With Boosted Reference 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) Zero Output (Continued) 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) Laboratory Power Supply (Continued) 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) Protected HV Regulator (Continued) 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) Remote Thermocouple Amplifier (Continued) 00565267 Transmitter for Bridge Sensor 00565268 15 www.national.com LM10 Typical Applications (Note 10) (Pin numbers are for devices in 8-pin packages) Precision Thermocouple Transmitter (Continued) 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) Optical Pyrometer (Continued) 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 (Continued) Battery-threshold Indicator 00565274 00565275 Single-cell Voltage Monitor Double-ended Voltage Monitor 00565276 Flashes Above 1.2V Rate Increases With Voltage 00565277 Flash Rate Increases Above 6V and Below 15V Meter Amplifier 00565278 INPUT 10 mV, 100nA FULL-SCALE www.national.com 18 LM10 Typical Applications (Note 10) (Pin numbers are for devices in 8-pin packages) Thermometer (Continued) 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 (Continued) 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 LM10 Typical Applications (Note 10) (Pin numbers are for devices in 8-pin packages) Light-level Controller (Continued) 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 LM10 (Pin numbers are for 8-pin packages) www.national.com 00565213 Operational Amplifier Schematic 22 Reference and Internal Regulator (Pin numbers are for 8-pin packages) LM10 23 00565214 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. 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