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IVC102

Burr-Brown Corporation
Part Number IVC102
Manufacturer Burr-Brown Corporation
Description PRECISION SWITCHED INTEGRATOR TRANSIMPEDANCE AMPLIFIER
Published Apr 5, 2005
Detailed Description ® IVC102 PRECISION SWITCHED INTEGRATOR TRANSIMPEDANCE AMPLIFIER APPLICATIONS q PRECISION LOW CURRENT MEASUREMENT q PHO...
Datasheet PDF File IVC102 PDF File

IVC102
IVC102

Overview
® 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 and to reset (discharge) the integrator capacitor.
Package options include 14-Pin plastic DIP and SO-14 surface-mount packages.
Both are specified for the –40°C to 85°C industrial temperature range.
V+ FEATURES q ON-CHIP INTEGRATING CAPACITORS q GAIN PROGRAMMED BY TIMING q LOW INPUT BIAS CURRENT: 750fA max q LOW NOISE q LOW SWITCH CHARGE INJECTION q FAST PULSE INTEGRATION q LOW NONLINEARITY: 0.
005% typ q 14-PIN DIP, SO-14 SURFACE MOUNT 6 VB 5 Ionization Chamber IIN 4 3 2 S1 1 C1 C2 C3 30pF 60pF 14 V O = –1 I (t) dt CINT IN ∫ 10pF S2 10 VO 0V Positive or Negative Signal Integration Hold Integrate Hold Reset 9 Photodiode Analog Ground 11 S1 12 S2 13 V– S1 S2 Logic Low closes switches Digital Ground InternationalAirportIndustrialPark • MailingAddress:POBox11400 • Tucson,AZ85734 • StreetAddress:6730S.
TucsonBlvd.
• Tucson,AZ 85706 Tel:(520)746-1111 • Twx:910-952-1111 • Cable:BBRCORP • Telex:066-6491 • FAX:(520)889-1510 • ImmediateProductInfo:(800)548-6132 ® © 1996 Burr-Br...


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