Datasheet Texas Instruments IVC102U — Datenblatt

IVC102 В® PRECISION SWITCHED INTEGRATOR
TRANSIMPEDANCE AMPLIFIER
APPLICATIONS DESCRIPTION в—Џ PRECISION LOW CURRENT MEASUREMENT 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. в—Џ PHOTODIODE MEASUREMENTS
в—Џ IONIZATION CHAMBER MEASUREMENTS
в—Џ CURRENT/CHARGE-OUTPUT SENSORS
в—Џ LEAKAGE CURRENT MEASUREMENT FEATURES The IVC102 is ideal for amplifying low-level sensor
currents from photodiodes and ionization chambers.
The input signal current can be positive or negative. в—Џ ON-CHIP INTEGRATING CAPACITORS
в—Џ GAIN PROGRAMMED BY TIMING
в—Џ LOW INPUT BIAS CURRENT: 750fA max TTL/CMOS-compatible timing inputs control the integration period, hold and reset functions to set the
effective transimpedance gain and to reset (discharge)
the integrator capacitor. в—Џ LOW NOISE
в—Џ LOW SWITCH CHARGE INJECTION
в—Џ FAST PULSE INTEGRATION Package options include 14-Pin plastic DIP and SO-14
surface-mount packages. Both are specified for the …