IVC102P PDF Datasheet


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Description

This is PRECISION SWITCHED INTEGRATOR TRANSIMPEDANCE AMPLIFIER. ® IVC102 PRECISION SWITCHED INTEGRATOR TRANSIMPEDANCE AMPLIFIER APPLICATIONS q PRECISION LOW CURRENT MEASUREMENT q PHOTODIODE MEASUREMENTS q IONIZATION CHAMBER MEASUREMENTS q CURRENT, CHARGE-OUTPUT SENSORS q LEAKAGE CURRENT MEASUREMENT DESCRIPTION The IVC102 is a precision integrating amplifier with FET op amp, integrating capacitors, and low leakage FET switches. It integrates low-level input current for a user-determined period, storing the resulting voltage on the integrating capacitor. The output voltage can be held for accurate measurement. The IVC102 provides a precision, lower noise alternative to conventional transimpedance op amp circuits that require a very high value feedback resistor. The IVC102 is ideal for amplifying low-level sensor currents from photodiodes and ionization chambers. The input signal current can be positive or negative. TTL, CMOS-compatible timing inputs control the integration period, hold and reset functions to set the effective transimpedance gain a.