LT1001 UTYPICAL APPLICATIONSMicrovolt Comparator with TTL OutputPhotodiode Amplifier 5V 100pF 39.2Ω 1.21M 1% 5k 1% 5% 500k 1% 7 NON 4.99k 2 OUTPUT 2 INVERTING – 8 1% – INPUT LT1001 6 OUTPUT λ LT1001 INVERTING 3 20k 2N3904 1V/µA + INPUT 3 4 5% IN914 + –5V 500k 100pF POSITIVE FEEDBACK TO ONE OF THE NULLING TERMINALS 1% CREATES 5µ TO 20µV OF HYSTERESIS. INPUT OFFSET VOLTAGE IS TYPICALLY CHANGED BY LESS THAN 5µV DUE TO THE FEEDBACK. 1001 TA03 1001 TA04 Precision Current SourcePrecision Current Sink V+ = 2V to 35V 5k V R 5V C I IN OUT = V R RC ≈ 10–4 IN 3 7 3 7 + + 0 to (V+ – 1V) 6 6 LT1001 2N3685 LT1001 2N3685 2 V 5k 2 IN – – 4 2N2219 4 2N2219 0 to (V– + 1V) –5V 10K 1000pF 10k R V– = –2 to –35V V I IN OUT = 1001 TA05 R 1001 TA06 Strain Gauge Signal Conditioner with Bridge Excitation 15V 15V 8.2k 2k* 100Ω 3 + REFERENCE OUT 6 2k LT1001 2N2219 TO MONITORING LM329 4.99k* A/D CONVERTER 2 – IN4148 350Ω BRIDGE 3 + 6 0V TO 10V * 10k LT1001 OUT ZERO 2 301k – 1µF 340k* 2 – IN4148 1.1k* 6 LT1001 2N2907 3 2k GAIN + 100Ω TRIM 5W *RN60C FILM RESISTORS 1001 TA07 –15V 1001fb 8
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