363D

LM363 NSC | Alldatasheet

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Y Offset and gain pretrimmed Y 12 nV/ 0Hz input noise (G e500/1000) Y 130 dB CMRR typical (G e500/1000) Y 2 nA bias current typical Y No external parts required Y Dual shield drivers Y Can be used as a high performance op amp Y Low supply current (1.5 mA typ) Typical Connections 8-Pin Package TL/H/5609–1 16-Pin Package Ge10 2, 3, 4, open Ge100 3–4 shorted Ge1000 2–4 shorted TL/H/5609–33 Connection Diagrams Metal Can Package 16-Pin Dual-In-Line Package TL/H/5609–2Order Number LM363H-10, LM363H-100 or LM363H-500 See NS Package Number H08C Order Number 363D See NS Package Number D16C C1995 National Semiconductor Corporation RRD-B30M115/Printed in U. S. A.

Absolute Maximum Ratings (Note 5) If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/Distributors for availability and specifications. Supply Voltage g18V Differential Input Voltage g10V Input Current g20 mA Input Voltage Equal to Supply Voltage Reference and Sense Voltage g25V Lead Temp. (Soldering, 10 sec.) 300 §C ESD rating to be determined. LM363 Parameter Conditions Tested Design UnitsTyp Limit Limit (Note 3) (Note 4) FIXED GAIN (8-PIN) Input Offset Voltage G e500 30 150 400 mV Ge100 50 250 700 mV Ge10 0.5 2.5 6 mV Input Offset Voltage Drift G e500 1 4 mV/§C Ge100 2 8 mV/§C Ge10 20 75 mV/§C Gain Error G e500 0.1 0.8 0.9 % (g10V Swing, 2 k X Load) G e100 0.07 0.7 0.8 % Ge10 0.05 0.6 0.7 % PROGRAMMABLE GAIN (16-PIN) Input Offset Voltage G e1000 50 250 500 mV Ge100 100 450 900 mV Ge10 1 3.5 8 mV Input Offset Voltage Drift G e1000 1 5 mV/§C Ge100 2 10 mV/§C Ge10 10 100 mV/§C Gain Error G e1000 2.0 3.0 3.5 % (g10V Swing, 2 k X Load) G e100 0.1 0.7 0.8 % Ge10 0.6 2.0 2.3 % FIXED GAIN AND PROGRAMMABLE Gain Temperature Coefficient G e1000 40 ppm/ §C Ge500 20 ppm/ §C Ge100, 10 10 ppm/ §C Gain Non-Linearity G e10, 100 0.01 0.03 0.04 % (g10V Swing, 2 k X Load) G e500, 1000 0.01 0.05 0.06 %

Parameter Conditions Tested Design UnitsTyp Limit Limit (Note 3) (Note 4) Common-Mode Rejection G e1000, 500 130 114 104 dB Ratio ( b10VsVCMs10V) G e100 120 94 84 dB Ge10 105 90 80 dB Positive Supply Rejection G e1000, 500 130 110 100 dB Ratio (5V to 15V) G e100 120 100 95 dB Ge10 100 85 78 dB Negative Supply Rejection G e1000, 500 120 100 90 dB Ratio ( b5V to b15V) G e100 106 85 75 dB Ge10 86 70 60 dB Input Bias Current 2 10 20 nA Input Offset Current 1 3 5 nA Common-Mode Input 100 8 G X Resistance Differential Mode Input G e1000, 500 0.2 G X Resistance G e100 2 G X Ge10 20 G X Input Offset Current Change b11VsVCMs13V 20 100 300 pa/V Reference and Sense 50 k X Resistance Min 30 27 kX Max 80 83 kX Open Loop Gain G CLe1000, 500 10 1 V/ mV Supply Current Positive 1.2 2.4 3.0 mA Negative 1.6 2.8 3.4 mA Note 1: These conditions apply unless otherwise noted; V ae15V, V beb15V, V CMe0V, R Le2k X, reference pin grounded, sense pin connected to output and Tje25§C. Note 2: Boldface limits are guaranteed over full temperature range. Operating ambient temperature range is 0 §Ct o7 0 §C for the LM363. Note 3: Guaranteed and 100% production tested. Note 4: Guaranteed but not 100% tested. These limits are not used in determining outgoing quality levels. Note 5: Maximum rated junction temperature is 100 §C for the LM363. Thermal resistance, junction to ambient, is 150 §C/W for the TO-99(H) package and 100 §C/W for the ceramic DIP (D).

Typical Performance Characteristics TAe25§C Parameter Fixed Gain and Programmable Units 1000/500 100 10 Input Voltage Noise, rms, 1 kHz 12 18 90 nV/ SHz Input Voltage Noise (Note 6) 0.4 1.5 10 mVp-p Input Current Noise, rms, 1 kHz 0.2 0.2 0.2 pA/ SHz Input Current Noise (Note 6) 40 40 40 pAp-p Bandwidth 30 100 200 kHz Slew Rate 1 0.36 0.24 V/ ms Settling Time, 0.1% of 10V 70 25 20 ms Offset Voltage Warm-Up Drift (Note 7) 5 15 50 mV Offset Voltage Stability (Note 8) 5 10 100 mV Gain Stability (Note 8) 0.01 0.005 0.05 % Note 6: Measured for 100 seconds in a 0.01 Hz to 10 Hz bandwidth. Note 7: Measured for 5 minutes in still air, V ae15V, V beb15V. Warm-up drift is proportionally reduced at lower supply voltages. Voltage Limit Common-Mode Input Voltage Supply Current vs Supply Temperature Input Bias Current vs Supplies Output Swing Referred to Temperature Supply Current vs Temperature Input Offset Current vs TL/H/5609–3

Typical Performance Characteristics (Continued) Output Current Limit Input Noise Voltage Input Current Noise Input Current vs Voltage Overdrive Gain Non-Linearity Gain Error vs Frequency * *Trimmed to zero at 100 Hz Positive Power Supply Negative Power Supply Gain Error vs Frequency * Rejection Rejection *Trimmed to zero at 100 Hz Negative Power Supply Negative Power Supply Negative Power Supply Rejection Rejection Rejection TL/H/5609–4

Typical Performance Characteristics (Continued) CMRR with Balanced CMRR with Balanced CMRR with Balanced Source Resistance Source Resistance Source Resistance CMRR with Unbalanced CMRR with Unbalanced CMRR with Unbalanced Source Resistance Source Resistance Source Resistance CMRR with Balanced CMRR with Balanced CMRR with Balanced Source Resistance Source Resistance Source Resistance CMRR with Unbalanced CMRR with Unbalanced CMRR with Unbalanced Source Resistance Source Resistance Source Resistance TL/H/5609–5

Typical Performance Characteristics (Continued) Shield Driver Bias Voltage Shield Driver Loading Error Shield Driver Loading Error Shield Driver Loading Error Response Small Signal Transient Response Small Signal Transient Response Small Signal Transient Response Small Signal Transient Response Large Signal Transient Response Large Signal Transient Response Large Signal Transient Response Large Signal Transient TL/H/5609–6

Simplified Schematic (pin numbers in parentheses are for 8-pin package) TL/H/5609–7 Theory of Operation Referring to the Simplified Schematic, it can be seen that the input voltage is applied across the bases of Q1 and Q2 and appears between their emitters. If R E1-2 is the resist- ance across these emitters, a differential current equal to V IN/RE1-2 flows from Q1’s emitter to Q2’s. The second stage amplifier shown maintains Q1 and Q2 at equal collec- tor currents by negative feedback to Q4. The emitter cur- rents of Q3 and Q4 must therefore be unbalanced by an amount equal to the current flow across R E1-2. Defining RE3-4eR5aR6, the differential voltage across the emitters of Q4 to Q3 is equal to VIN RE 1-2 c RE3-4. This voltage divided by the attenuation factor R3aR4 e R2 R1aR2 is equal to the output-to-reference voltage. Hence, the over- all gain is given by GeVOUT VIN eR3aR4 cRE3-4 RE1-2

4 mA-20 mA Two Wire Current Transmitter TL/H/5609–20 The LM329 reference provides excellent line regulation and gain stability. When bridge is balanced (IOUTe4 mA), there’s no drop across R3 and R4, so that gain and offset adjustments are non-in- teractive. The LM334 configured as a zero-TC current source supplies quiescent current to circuit. R11 provides current limiting. Design Equations I OSe(IR6aIR7) 1aR2 R1 J e4m A GaineDIOUT DVIN jAV R1XR2aR3aR4 R3aR4 j10 mA mV when A V e LM363 voltage gain Pick I 334 e 0.68V a68 mV R10 j3.8 mA IMAX eI334 a VZb2.4V R11 e 26 mA IBRIDGE(MAX) j I334-I363-IZ j 1.5mA Precision Current Source (Low Output Current) TL/H/5609–21 R1 e R2 IOUT e VIN GR1, lVINl s 10V Precision Voltage to Current Converter (Low Input Voltage) TL/H/5609–22 R1 e R2 Req e R1ll50 k X IOUT e GV IN Req e GV IN 1k X

Typical Applications (Continued) Curvature Corrected Platinum RTD Thermometer TL/H/5609–23 *70k and 2k should track to 5 ppm/ §C **Less than 5 ppm/ §C drift ²Less than 100 ppm/ §C drift ²² These resistors should track to 20 ppm/ §C ³Equivalent circuit, showing lead resistance This thermometer is capable of 0.01 §C accuracy over b50§Ct o a150§C. A unique trim arrangement eliminates cumbersome trim inter- actions so that zero, gain, and nonlinearity correction can be trimmed in one oven trip. Extra op amps provide full Kelvin sensing on the sensor without adding drift and offset terms found in other designs. A2 is con- figured as a Howland current pump, biasing the sensor with a fixed current. Resistors R2, R3, R4 and R5 from a bridge driven into balance by A1. In balance, both inputs of A1 are at the same voltage. Since R6 eR7, A1 draws equal currents from both legs of the bridge. Any loading of the R4/R5 leg by the sensor would unbalance the bridge; therefore, both bridge taps are given to the sensor open circuit voltage and no current is drawn. Precision Temperature Controller TL/H/5609–24*Ultronix 105A wirewound ThermistoreYellow Springs Ý44032 Setpoint stability e2.5X10b4§C/Hr

Typical Applications (Continued) Low Frequency Rolloff (AC Coupling) TL/H/5609–25 f1e 1 2qC1(50 k X) e1H z f2e100 f1 e 100Hz Reduced DC voltage gain attenuates offset error and 1/f noise by a factor of 100. Precision Comparator with Balanced Inputs and Variable Offset Boosted Current Source with Limiting TL/H/5609–26 tpdj15 mS at 1 mV overdrive DVOUTeV2a0.6V Hysteresise DVOUT G(R1aR2) e2m V OffseteVSENSE/G g1.3V range R1eR2 IOeGV IN IMAXeVBE j60 mA Thermocouple Amplifier with Cold Junction Compensation TL/H/5609–27 Input protection circuitry allows thermocouple to short to 120 V AC without damaging amplifier. Calibration: 1) Apply 50 mV signal in place of thermocouple. Trim R3 for V OUTe12.25V. 2) Reconnect thermocouple. Trim R9 for correct output.

Typical Applications (Continued) Synchronous Demodulator TL/H/5609–28 *Use square wave drive produced by optical chopper to run LF13333 switch inputs. Pulsed Bridge Driver/Amplifier TL/H/5609–29

Typical Applications (Continued) Precision Barometer TL/H/5609–30 **Parallel trim for 28.00 × Hge0V ²Parallel trim for 32.00 × Hge4V out *B.L.H. Electronics ÝDHF-444114 Pressure Transducer, 350X input impedance. Output e1 mV/volt excitation/psi Removing Large DC Offsets TL/H/5609–31 *Optional bandlimiting to reduce noise. Pick R1C1 eR2C2eR3C3/10 e 1 2qfl fle0.1 Hz for values shown. Integrator nulls out offset error to LM363 bias currents flowing into R1 and R2. Removing Small DC Offsets TL/H/5609–32 *Optional bandlimiting to reduce noise. Low frequency break frequency f le 1 2qR1C1 e0.01 Hz Accommodates out referred offset of several volts. Limit is set by max differential between reference and sense terminals.

Physical Dimensions inches (millimeters) Metal Can Package (H) Order Number LM363H-10, LM363H-100 or LM363H-500

LM363 Precision Instrumentation Amplifier Physical Dimensions inches (millimeters) (Continued) Hermetic Dual-In-Line Package (D) Order Number LM363D 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 2. A critical component is any component of a life systems which, (a) are intended for surgical implant support device or system whose failure to perform can into the body, or (b) support or sustain life, and whose be reasonably expected to cause the failure of the life failure to perform, when properly used in accordance support device or system, or to affect its safety or with instructions for use provided in the labeling, can effectiveness. be reasonably expected to result in a significant injury to the user. National Semiconductor National Semiconductor National Semiconductor National Semiconductor Corporation Europe Hong Kong Ltd. Japan Ltd.

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