Datasheet > CS5581_08

CS5581_08

更新时间： 2022-12-28 02:28:13

品牌	Logo	应用领域
凌云 - CIRRUS		/
页数	文件大小	规格书
32页	505K
描述
±2.5 V / 5 V, 200 kSps, 16-bit, High-throughput ΔΣ ADC

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CS5581_08 数据手册

3/25/08

15:11

CS5581

±2.5 V / 5 V, 200 kSps, 16-bit, High-throughput ∆Σ ADC

Features & Description

General Description

The CS5581 is a single-channel, 16-bit analog-to-digital

converter capable of 200 kSps conversion rate. The input

accepts a single-ended analog input signal. On-chip buff-

ers provide high input impedance for both the AIN input

and the VREF+ input. This significantly reduces the drive

requirements of signal sources and reduces errors due to

source impedances. The CS5581 is a delta-sigma convert-

er capable of switching multiple input channels at a high

rate with no loss in throughput. The ADC uses a low-laten-

cy digital filter architecture. The filter is designed for fast

settling and settles to full accuracy in one conversion. The

converter's 16-bit data output is in serial format, with the

serial port acting as either a master or a slave. The convert-

er is designed to support bipolar, ground-referenced

signals when operated from ±2.5V analog supplies.

Single-ended Analog Input

On-chip Buffers for High Input Impedance

Conversion Time = 5 µS

Settles in One Conversion

Linearity Error = 0.0008%

Signal-to-Noise = 80 dB

S/(N + D) = 80 dB

DNL = ±0.1 LSB Max.

Simple three/four-wire serial interface

Power Supply Configurations:

- Analog: +5V/GND; IO: +1.8V to +3.3V

The converter can operate from an analog supply of 0-5V

or from ±2.5V. The digital interface supports standard logic

operating from 1.8, 2.5, or 3.3 V.

- Analog: ±2.5V; IO: +1.8V to +3.3V

Power Consumption:

- ADC Input Buffers On: 85 mW

- ADC Input Buffers Off: 60 mW

ORDERING INFORMATION:

See Ordering Information on page 32.

V1+

V2+

CS5581

VREF+

VREF-

SMODE

SERIAL

INTERFACE

DIGITAL

FILTER

LOGIC

SCLK

ADC

AIN

SDO

RDY

ACOM

BUFEN

RST

CONV

DIGITAL CONTROL

OSC/CLOCK

GENERATOR

BP/UP

MCLK

V2-

TST

VLR3

VLR

VLR2

V1-

DCR

This document contains information for a new product.

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

Preliminary Product Information

MAR ‘08

DS796PP1

http://www.cirrus.com

12 3 4 5 6 7...32

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