CS5531-AS-R

更新时间： 2024-10-30 13:07:07

品牌	Logo	应用领域
凌云 - CIRRUS		/
页数	文件大小	规格书
50页	757K
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数据手册

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CS5531-AS-R 数据手册

CS5531/32/33/34-AS

16-bit and 24-bit ADCs with Ultra-low-noise PGIA

Features

General Description

The CS5531/32/33/34 are highly integrated ∆Σ Analog-

to-Digital Converters (ADCs) which use charge-balance

techniques to achieve 16-bit (CS5531/33) and 24-bit

(CS5532/34) performance. The ADCs are optimized for

measuring low-level unipolar or bipolar signals in weigh

scale, process control, scientific, and medical

applications.

Chopper-stabilized PGIA (Programmable

Gain Instrumentation Amplifier, 1x to 64x)

– 12 nV/√Hz @ 0.1 Hz (No 1/f noise) at 64x

– 1200 pA Input Current with Gains >1

Delta-sigma Analog-to-digital Converter

– Linearity Error: 0.0007% FS

– Noise Free Resolution: Up to 23 bits

To accommodate these applications, the ADCs come as

either two-channel (CS5531/32) or four-channel

(CS5533/34) devices and include a very low noise chop-

per-stabilized instrumentation amplifier (6 nV/√Hz @ 0.1

Hz) with selectable gains of 1×, 2×, 4×, 8×, 16×, 32×, and

64×. These ADCs also include a fourth order ∆Σ modu-

lator followed by a digital filter which provides twenty

selectable output word rates of 6.25, 7.5, 12.5, 15, 25, 30,

50, 60, 100, 120, 200, 240, 400, 480, 800, 960, 1600,

1920, 3200, and 3840 Sps (MCLK = 4.9152 MHz).

Two- or Four-channel Differential MUX

Scalable Input Span via Calibration

– ±5 mV to differential ±2.5V

Scalable V

Input: Up to Analog Supply

REF

Simple Three-wire Serial Interface

– SPI™ and Microwire™ Compatible

– Schmitt Trigger on Serial Clock (SCLK)

To ease communication between the ADCs and a micro-

controller, the converters include a simple three-wire se-

rial interface which is SPI and Microwire compatible with

a Schmitt-trigger input on the serial clock (SCLK).

R/W Calibration Registers Per Channel

Selectable Word Rates: 6.25 to 3,840 Sps

Selectable 50 or 60 Hz Rejection

Power Supply Configurations

– VA+ = +5 V; VA- = 0 V; VD+ = +3 V to +5 V

– VA+ = +2.5 V; VA- = -2.5 V; VD+ = +3 V to +5 V

– VA+ = +3 V; VA- = -3 V; VD+ = +3 V

High dynamic range, programmable output rates, and

flexible power supply options makes these ADCs ideal

solutions for weigh scale and process control

applications.

ORDERING INFORMATION

See page 47

VA+

VREF+ VREF-

VD+

AIN1+

AIN1-

AIN2+

AIN2-

DIFFERENTIAL

^THORDER ∆Σ

MODULATOR

PGIA

1,2,4,8,16

32,64

PROGRAMMABLE

SINC FIR FILTER

SDI

SERIAL

INTERFACE

SDO

MUX

SCLK

(CS5533/34

SHOWN)

AIN3+

AIN3-

CLOCK

GENERATOR

CALIBRATION

SRAM/CONTROL

LOGIC

LATCH

AIN4+

AIN4-

VA-

A0/GUARD

OSC1

OSC2

DGND

OCT ‘08

DS289F5

http://www.cirrus.com

12 3 4 5 6 7...50

中文翻译

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与CS5531-AS-R相关器件

型号	品牌	获取价格	描述	数据表
CS5531-ASZ	CIRRUS	获取价格	16-bit and 24-bit ADCs with Ultra-low-noise PGIA
CS5531-ASZ-R	CIRRUS	获取价格	ADC, Delta-Sigma, 16-Bit, 1 Func, 2 Channel, Serial Access, PDSO20, 0.200 INCH, LEAD FREE,
CS5532	CIRRUS	获取价格	16 BIT AND 24 BIT ADCS WITH ULTRA LOW NOISE PGIA
CS5532-AS	CIRRUS	获取价格	16 BIT AND 24 BIT ADCS WITH ULTRA LOW NOISE PGIA
CS5532-ASZ	CIRRUS	获取价格	16-bit and 24-bit ADCs with Ultra-low-noise PGIA
CS5532-BS	CIRRUS	获取价格	16 BIT AND 24 BIT ADCS WITH ULTRA LOW NOISE PGIA
CS5532-BSZ	CIRRUS	获取价格	24-bit ΔΣ ADCs with Ultra-low-noise PGIA
CS5533	CIRRUS	获取价格	16 BIT AND 24 BIT ADCS WITH ULTRA LOW NOISE PGIA
CS5533-AS	CIRRUS	获取价格	16 BIT AND 24 BIT ADCS WITH ULTRA LOW NOISE PGIA
CS5533-ASZ	CIRRUS	获取价格	16-bit and 24-bit ADCs with Ultra-low-noise PGIA

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