Datasheet > IVC102

IVC102

更新时间： 2024-09-18 11:14:11

品牌	Logo	应用领域
德州仪器 - TI		放大器
页数	文件大小	规格书
16页	250K
描述
精密交换式集成器互阻抗放大器

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IVC102 数据手册

IVC102

PRECISION SWITCHED INTEGRATOR

TRANSIMPEDANCE AMPLIFIER

DESCRIPTION

APPLICATIONS

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.

● PRECISION LOW CURRENT MEASUREMENT

● PHOTODIODE MEASUREMENTS

● IONIZATION CHAMBER MEASUREMENTS

● CURRENT/CHARGE-OUTPUT SENSORS

● LEAKAGE CURRENT MEASUREMENT

FEATURES

● ON-CHIP INTEGRATING CAPACITORS

The IVC102 is ideal for amplifying low-level sensor

currents from photodiodes and ionization chambers.

The input signal current can be positive or negative.

● GAIN PROGRAMMED BY TIMING

● LOW INPUT BIAS CURRENT: 750fA max

● LOW NOISE

TTL/CMOS-compatible timing inputs control the inte-

gration period, hold and reset functions to set the

effective transimpedance gain and to reset (discharge)

the integrator capacitor.

● LOW SWITCH CHARGE INJECTION

● FAST PULSE INTEGRATION

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.

● LOW NONLINEARITY: 0.005% typ

● 14-PIN DIP, SO-14 SURFACE MOUNT

V+

–1

C₃

30pF

60pF

V_O

C_INT

I_IN(t) dt

∫

V_B

C₂

10pF

Positive or Negative

Signal Integration

C₁

Ionization

Chamber

S₂

I_IN

V_O

S₁

Hold

Integrate

Hold

Reset

S₁

S₂

Photodiode

Analog

Ground

V–

Digital

Ground

S₁

S₂

Logic Low closes switches

InternationalAirportIndustrialPark • MailingAddress:POBox11400 • Tucson,AZ85734 • StreetAddress:6730S.TucsonBlvd. • Tucson,AZ85706

Tel:(520)746-1111 • Twx:910-952-1111 • Cable:BBRCORP • Telex:066-6491 • FAX:(520)889-1510 • ImmediateProductInfo:(800)548-6132

_PDS-1_1329A

rin

ted

in U.S.A. June, 1996

SBFS009

12 3 4 5 6 7...16

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