CS3302

更新时间： 2024-11-26 22:28:47

品牌	Logo	应用领域
凌云 - CIRRUS		放大器
页数	文件大小	规格书
15页	254K
描述
HIGH Z PROGRAMMABLE GAIN DIFFERENTIAL AMPLIFIER

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中文翻译

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CS3302 数据手册

CS3302

High-Z Programmable Gain Differential Amplifier

Features

Description

The CS3302 is a high input impedance differential in, dif-

ferential out amplifier with programmable gain, optimized

for amplifying signals from high impedance sensors such

as hydrophones. The gain settings are binary weighted

(x1, x2, x4, x8, x16, x32, x64) and are selected using

simple pin settings. Two sets of external inputs, INA and

INB, simplify system design as inputs from a sensor and

test DAC. An internal 800Ω termination can also be se-

lected for noise tests.

Signal bandwidth: DC to 2 kHz

Selectable gain: x1, x2, x4, x8, x16, x32, x64

Differential inputs, differential outputs

• Multiplexed inputs: INA, INB, 800Ω termination

• Rough / fine charge outputs for CS5371/72

• Max signal amplitude: 5 V differential

p-p

• Ultra-low input bias: < 1 pA

Excellent noise performance

Amplifier input impedance is very high, requiring less

than 1 pA of input current. Noise performance is very

• 1 µV between 0.1 Hz and 10 Hz

p-p

• 8.5 nV/ √Hz from 200 Hz to 2 kHz

good at 1 µV

between 0.1 Hz and 10 Hz, and a noise

p-p

density of 8.5 nV/ √Hz over the 200 Hz to 2 kHz band-

width. Distortion performance is also extremely good,

typically -118 dB THD. Low input current, low noise, and

low total harmonic distortion make this amplifier ideal for

high impedance differential sensors requiring maximum

dynamic range.

Low total harmonic distortion

• -118 dB THD typical (0.000126%)

• -112 dB THD maximum (0.000251%)

Low power consumption

• Normal / LPWR / PWDN: 5 mA, 3.3 mA, 10 µA

Single or dual power supply configurations

• VA+ = +5 V; VA- = 0 V; VD = +3.3 V to +5 V

• VA+ = +2.5 V;VA- = -2.5 V;VD = +3.3 V

ORDERING INFORMATION

CS3302-IS

-40ºC to +85ºC

24-pin SSOP

VA+

GUARD

750

500 Ω

INA+

INB+

OUTR+

OUTF+

570500 Ω

GAIN0

GAIN1

GAIN2

MUX0

MUX1

500 Ω

750

OUTF-

OUTR-

INA-

INB-

750

500 Ω

VA-

LPWR PWDN DGND

This document contains information for a new product.

Preliminary Product Information

Cirrus Logic reserves the right to modify this product without notice.

Cirrus Logic, Inc.

www.cirrus.com

JUN ‘03

DS596PP2

12 3 4 5 6 7...15

中文翻译

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