LM10 Operational Amplifier and Voltage Reference
May 1998
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)
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Order Number LM10BH, LM10CH, LM10CLH or LM10H/883 available per SMA# 5962-8760401 See NS Package Number H08A Dual-In-Line Package (N)
Order Number LM10CWM See NS Package Number M14B
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Order Number LM10CN or LM10CLN See NS Package Number N08E
© 1999 National Semiconductor Corporation DS005652 www.national.com
Absolute Maximum Ratings (Notes 1, 8)
If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications.
LM10/LM10B/ LM10BL/ LM10C LM10CL 45V 7V ± 40V ± 7V internally limited continuous −55˚C to +150˚C 300˚C 260˚C 215˚C 220˚C
ESD rating is to be determined. Maximum Junction Temperature LM10 LM10B LM10C 150˚C 100˚C 85˚C
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)
Operating Ratings
Package Thermal Resistance θJA H Package N Package WM Package θJC H Package 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 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 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 Line regulation TC < 100˚C 1.2V (1.3V) ≤VS≤40V 0≤IREF≤1.0 mA, VREF = 200 mV 250 150 120 80 50 20 1.5 0.5 14 6 8 4 93 87 90 84 96 90 2.0 2.0 60 0.001 0.003 0.006 106 96 102 25 33 3.0 130 400 10 500 Conditions Min LM10/LM10B Typ 0.3 0.25 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 5.0 5.0 90 0.001 0.008 0.01 106 96 102 25 33 3.0 130 400 400 12 0.4 Min LM10C Typ 0.5 Max 4.0 5.0 2.0 3.0 30 40 mV mV nA nA nA nA kΩ kΩ V/mV V/mV 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 Units
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Electrical Characteristics
Parameter 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 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 LM10/LM10B Typ 0.01 Max 0.1 0.15 25 15 190 189 22 200 210 211 75 90 70 Min LM10C Typ 0.01 Max 0.15 0.2 % % 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 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 Load regulation 1.2V (1.3V) ≤VS≤6.5V 0≤IREF≤0.5 mA, VREF = 200 mV 0≤IREF≤0.5 mA V+−VREF≥1.0V (1.1V) 250 150 60 40 10 4 1.5 0.5 8 4 89 83 86 80 94 88 2.0 2.0 60 0.001 0.01 0.01 0.02 0.1 0.15 0.01 106 96 102 30 3.0 25 300 10 500 Conditions Min LM10BL Typ 0.3 0.1 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 5.0 5.0 90 0.001 0.02 0.03 0.15 0.2 106 96 102 30 3.0 25 300 400 12 0.2 Min LM10CL Typ 0.5 Max 4.0 5.0 2.0 3.0 30 40 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 % % Units
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Electrical Characteristics
Parameter 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 0.2V≤VREF≤5.5V 30 20 195 194 20 0.002 260 400 500 200 205 206 50 65 0.003 280 500 570 LM10BL Typ 70 Max Min 20 15 190 189 22 200 210 211 75 90 LM10CL Typ 70 Max 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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Typical Performance Characteristics (Op Amp)
Input Current Common Mode Limits Output Voltage Drift
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Input Noise Voltage
DC Voltage Gain
Transconductance
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Output Saturation Characteristics
Output Saturation Characteristics
Output Saturation Characteristics
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Typical Performance Characteristics (Op Amp)
Minimum Supply Voltage Minimum Supply Voltage
(Continued) Minimum Supply Voltage
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Frequency Response
Output Impedance
Typical Stability Range
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Large Signal Response
Comparator Response Time For Various Input Overdrives
Comparator Response Time For Various Input Overdrives
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Typical Performance Characteristics (Op Amp)
Follower Pulse Response Noise Rejection
(Continued)
Rejection Slew Limiting
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Supply Current
Thermal Gradient Feedback
Thermal Gradient Cross-coupling
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Shunt Gain
Shunt Gain
Shunt Gain
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Typical Performance Characteristics (Reference)
Line Regulation Load Regulation Reference Noise Voltage
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Minimum Supply Voltage
Output Saturation
Typical Stability Range
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Typical Applications (Note 10)
Op Amp Offset Adjustment Standard
(Pin numbers are for devices in 8-pin packages)
Limited Range
Limited Range With Boosted Reference
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Typical Applications (Note 10)
Positive Regulators (Note 9) Low Voltage
(Pin numbers are for devices in 8-pin packages) (Continued)
Best Regulation
Zero Output
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Note 9: Use only electrolytic output capacitors.
Current Regulator
Shunt Regulator
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Required For Capacitive Loading
Negative Regulator
Precision Regulator
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*Electrolytic
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Typical Applications (Note 10)
(Pin numbers are for devices in 8-pin packages) (Continued) Laboratory Power Supply
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*VOUT = 10−4 R3
HV Regulator
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Typical Applications (Note 10)
(Pin numbers are for devices in 8-pin packages) (Continued) Protected HV Regulator
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Flame Detector
Light Level Sensor
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*800˚C Threshold Is Established By Connecting Balance To VREF.
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*Provides Hysteresis
Remote Amplifier
Remote Thermocouple Amplifier
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Typical Applications (Note 10)
(Pin numbers are for devices in 8-pin packages) (Continued) Transmitter for Bridge Sensor
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Precision Thermocouple Transmitter
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10 mA≤IOUT≤50 mA 500˚C≤TP≤1500˚C *Gain Trim
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Typical Applications (Note 10)
(Pin numbers are for devices in 8-pin packages) (Continued) Optical Pyrometer
Resistance Thermometer Transmitter
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††Level-shift Trim
*Scale Factor Trim †Copper Wire Wound
Thermocouple Transmitter
Logarithmic Light Sensor
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1 mA≤IOUT≤5 mA ‡ 50 µA≤ID≤500 µA ††Center Scale Trim †Scale Factor Trim *Copper Wire Wound
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200˚C≤Tp≤700˚C 1 mA≤IOUT≤5 mA †Gain Trim
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Typical Applications (Note 10)
Battery-level Indicator
(Pin numbers are for devices in 8-pin packages) (Continued) Battery-threshold Indicator
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Single-cell Voltage Monitor
Double-ended Voltage Monitor
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Flashes Above 1.2V Rate Increases With Voltage
Flash Rate Increases Above 6V and Below 15V
Meter Amplifier
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INPUT 10 mV, 100nA FULL-SCALE
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Typical Applications (Note 10)
(Pin numbers are for devices in 8-pin packages) (Continued) Thermometer
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*Trim For Span †Trim For Zero
Light Meter
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1≤λ/λ0≤105
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Typical Applications (Note 10)
(Pin numbers are for devices in 8-pin packages) (Continued) Microphone Amplifier
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ZOUTz680Ω @ 5 kHz AV≤1k f1z100 Hz f2z5 kHz RLz500 *Max Gain Trim
Isolated Voltage Sensor
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†Controls “Loop Gain”
*Optional Frequency Shaping
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Typical Applications (Note 10)
(Pin numbers are for devices in 8-pin packages) (Continued) Light-level Controller
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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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Operational Amplifier Schematic
(Pin numbers are for 8-pin packages)
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Reference and Internal Regulator
(Pin numbers are for 8-pin packages)
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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
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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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