Datasheet LT1789-1, LT1789-10 (Analog Devices) - 21
| Manufacturer | Analog Devices |
| Description | Micropower, Single Supply Rail-to-Rail Output Instrumentation Amplifier |
| Pages / Page | 24 / 21 — TYPICAL APPLICATIONS. Single Supply Positive Integrator. Avalanche Photo … |
| File Format / Size | PDF / 339 Kb |
| Document Language | English |
TYPICAL APPLICATIONS. Single Supply Positive Integrator. Avalanche Photo Diode Module Bias Current Monitor
Model Line for this Datasheet
Text Version of Document
LT1789-1/LT1789-10
TYPICAL APPLICATIONS Single Supply Positive Integrator
VS 3 VIN + 7 R1 VS 8 6 10k 3 LT1789-1 + 1 REF + 1 LT1636 V 5 OUT C1 R2 2 2 – 4 100μF 10Ω – 4 RESET 1789 TA02 VS = 2.7V TO 32V TIME CONSTANT = (R1)(C1) = 1 SECOND AS SHOWN
Avalanche Photo Diode Module Bias Current Monitor
FOR OPTIONAL “ZERO CURRENT” FEEDBACK TO APD BIAS REGULATOR, SEE APPENDIX A, APPLICATION NOTE 92 1k* APD 1% VOUT = 20V TO 90V HIGH VOLTAGE TO APD BIAS INPUT 1μF 1μF 100k* 100k* 100V 100V Q1 1N4690 1M* 5V 5.6V 0.2μF 5V – 6 1μF 20k 2 + A1 OUTPUT S2 10k LT1789-1 A2 0V TO 1V = 30k + 1μF LT1006 0mA TO 1mA 5 – Q2 0.2μF –3.5V 20k* MPSA42 1M* –3.5V 20k 12 200k* 13 14 S1 –3.5V TO 5V 18 AMPLIFIERS 22μF 5V 3 S3 + * = 0.1% METAL FILM RESISTOR 15 22μF 1μF 100V = TECATE CMC100105MX1825 + # CIRCLED NUMBERS = LTC1043 PIN NUMBER = 1N4148 16 17 4 = TP0610L 0.056μF 5V † FOR MORE INFORMATION REFER TO APPLICATION NOTE 92 1789 TA05 1789fc 21
TYPICAL APPLICATIONS Single Supply Positive Integrator
VS 3 VIN + 7 R1 VS 8 6 10k 3 LT1789-1 + 1 REF + 1 LT1636 V 5 OUT C1 R2 2 2 – 4 100μF 10Ω – 4 RESET 1789 TA02 VS = 2.7V TO 32V TIME CONSTANT = (R1)(C1) = 1 SECOND AS SHOWN
Avalanche Photo Diode Module Bias Current Monitor
FOR OPTIONAL “ZERO CURRENT” FEEDBACK TO APD BIAS REGULATOR, SEE APPENDIX A, APPLICATION NOTE 92 1k* APD 1% VOUT = 20V TO 90V HIGH VOLTAGE TO APD BIAS INPUT 1μF 1μF 100k* 100k* 100V 100V Q1 1N4690 1M* 5V 5.6V 0.2μF 5V – 6 1μF 20k 2 + A1 OUTPUT S2 10k LT1789-1 A2 0V TO 1V = 30k + 1μF LT1006 0mA TO 1mA 5 – Q2 0.2μF –3.5V 20k* MPSA42 1M* –3.5V 20k 12 200k* 13 14 S1 –3.5V TO 5V 18 AMPLIFIERS 22μF 5V 3 S3 + * = 0.1% METAL FILM RESISTOR 15 22μF 1μF 100V = TECATE CMC100105MX1825 + # CIRCLED NUMBERS = LTC1043 PIN NUMBER = 1N4148 16 17 4 = TP0610L 0.056μF 5V † FOR MORE INFORMATION REFER TO APPLICATION NOTE 92 1789 TA05 1789fc 21