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
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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
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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
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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.
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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LM10
Typical Applications (Note 10) (Pin numbers are for devices in 8-pin packages)
Remote Thermocouple Amplifier
(Continued)
00565267
Transmitter for Bridge Sensor
00565268
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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
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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
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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
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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
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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
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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.
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LM10
(Pin numbers are for 8-pin packages)
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00565213
Operational Amplifier Schematic
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Reference and Internal Regulator
(Pin numbers are for 8-pin packages)
LM10
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00565214
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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
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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
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