ADS7819

更新时间： 2024-11-26 22:53:39

品牌	Logo	应用领域
BB		转换器
页数	文件大小	规格书
11页	320K
描述
12-Bit 800kHz Sampling CMOS ANALOG-to-DIGITAL CONVERTER

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ADS7819 数据手册

ADS7819

FPO

ADS7819

12-Bit 800kHz Sampling CMOS

ANALOG-to-DIGITAL CONVERTER

FEATURES

DESCRIPTION

● 1.25µs THROUGHPUT TIME

The ADS7819 is a complete 12-bit sampling A/D

using state-of-the-art CMOS structures. It contains a

complete 12-bit capacitor-based SAR A/D with inher-

ent S/H, reference, clock, interface for microprocessor

use, and three-state output drivers.

● STANDARD ±2.5V INPUT RANGE

● 70dB min SINAD WITH 250kHz INPUT

● ±3/4 LSB max INL AND ±1 LSB max DNL

● INTERNAL REFERENCE

The ADS7819 is specified at an 800kHz sampling

rate, and guaranteed over the full temperature range.

Laser-trimmed scaling resistors provide a ±2.5V input

range and inherent overvoltage protection up to ±25V.

● COMPLETE WITH S/H, REF, CLOCK, ETC.

● PARALLEL DATA w/ LATCHES

● 28-PIN 0.3" PDIP AND SOIC

The 28-pin ADS7819 is available in a plastic 0.3" DIP

and in an SOIC, both fully specified for operation over

the industrial –40°C to +85°C range.

Successive Approximation Register and Control Logic

Clock

CDAC

Output

Latches

BUSY

575Ω

±2.5V Input

and

Three

State

Parallel

2.5kΩ

Comparator

Drivers

Data

Bus

Cap

18kΩ

Buffer

4.8kΩ

8.6kΩ

Internal

Ref

2.5V Ref Out/In

International Airport Industrial Park

•

Mailing Address: PO Box 11400

Cable: BBRCORP

•

Tucson, AZ 85734

•

Street Address: 6730 S. Tucson Blvd.

•

Tucson, AZ 85706

Tel: (520)746-1111 Twx: 910-952-1111

•

Telex: 066-6491

•

FAX: (520)889-1510

•

Immediate Product Info: (800)548-6132

PDS-1193C

Printed in U.S.A. February, 1995

12 3 4 5 6 7...11

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