Datasheet LTC6943 (Analog Devices) - 9
| Manufacturer | Analog Devices |
| Description | Micropower, Dual Precision Instrumentation Switched Capacitor Building Block |
| Pages / Page | 16 / 9 — TYPICAL APPLICATIO S. 0.01% Analog Multiplier |
| File Format / Size | PDF / 250 Kb |
| Document Language | English |
TYPICAL APPLICATIO S. 0.01% Analog Multiplier
Model Line for this Datasheet
Text Version of Document
LTC6943
U TYPICAL APPLICATIO S 0.01% Analog Multiplier
1/4 LTC6943 1k 12 11 –5V LT1004-1.2V 1µF 10 20k OUTPUT 5V † 0.001µF 80.6k* TRIM 7.5k* Y 2 7 INPUT – 6 0.01µF LT1056 1µF 3 + 4 14 5V 1/4 LTC6943 –5V 2 7 XINPUT 5 4 – 6 OUTPUT LT1056 30pF XY ±0.01% 3 22k 330k + 4 1 OPERATE LTC6943 FROM ±5V † † 2N2907A POLYPROPYLENE, MOUNT CLOSE 0.001µF –5V (FOR START-UP) 1% FILM RESISTOR * ADJUST OUTPUT TRIM 1µF SO X • Y = OUTPUT ±0.01% –5V 6943 • TA09
Single 5V Supply, Ultra Precision Low Power with True Rail-to-Rail In/Out Instrumentation Amplifier
5V LTC6943 + 3 5 6 7 + 1 OUTPUT LTC2054CS AV = 1000 4 – 9 2 INPUT 1µF 1µF 10 100Ω 99.9k – 11 12 43k V+ = 5V 5 4 0.22µF 10k 1 1 1N914 1 µF µF NONPOLARIZED 2 16 13 ≈ –0.5V 14 15 3 INPUT AND OUTPUT VOLTAGE RANGE INCLUDES GROUND. INPUT REFERRED OFFSET ERRORS ARE TYPICALLY 3µV WITH 5V 2µV OF PEAK-TO-PEAK DC TO 10Hz NOISE ~ 0.0047 CMRR ~ 120dB 6943 • TA10 6943f 9
U TYPICAL APPLICATIO S 0.01% Analog Multiplier
1/4 LTC6943 1k 12 11 –5V LT1004-1.2V 1µF 10 20k OUTPUT 5V † 0.001µF 80.6k* TRIM 7.5k* Y 2 7 INPUT – 6 0.01µF LT1056 1µF 3 + 4 14 5V 1/4 LTC6943 –5V 2 7 XINPUT 5 4 – 6 OUTPUT LT1056 30pF XY ±0.01% 3 22k 330k + 4 1 OPERATE LTC6943 FROM ±5V † † 2N2907A POLYPROPYLENE, MOUNT CLOSE 0.001µF –5V (FOR START-UP) 1% FILM RESISTOR * ADJUST OUTPUT TRIM 1µF SO X • Y = OUTPUT ±0.01% –5V 6943 • TA09
Single 5V Supply, Ultra Precision Low Power with True Rail-to-Rail In/Out Instrumentation Amplifier
5V LTC6943 + 3 5 6 7 + 1 OUTPUT LTC2054CS AV = 1000 4 – 9 2 INPUT 1µF 1µF 10 100Ω 99.9k – 11 12 43k V+ = 5V 5 4 0.22µF 10k 1 1 1N914 1 µF µF NONPOLARIZED 2 16 13 ≈ –0.5V 14 15 3 INPUT AND OUTPUT VOLTAGE RANGE INCLUDES GROUND. INPUT REFERRED OFFSET ERRORS ARE TYPICALLY 3µV WITH 5V 2µV OF PEAK-TO-PEAK DC TO 10Hz NOISE ~ 0.0047 CMRR ~ 120dB 6943 • TA10 6943f 9
