Datasheet > ADS7821UB

ADS7821UB

更新时间： 2024-11-17 02:58:35

品牌	Logo	应用领域
德州仪器 - TI		光电二极管转换器
页数	文件大小	规格书
11页	199K
描述
ANALOG-to-DIGITAL CONVERTER

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中文翻译

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数据手册

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ADS7821UB 数据手册

ADS7821

16-Bit 10µs Sampling CMOS

ANALOG-to-DIGITAL CONVERTER

DESCRIPTION

FEATURES

The ADS7821 is a complete 16-bit sampling A/D

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

complete 16-bit, capacitor-based, SAR A/D with S/H,

reference, clock, interface for microprocessor use, and

three-state output drivers.

● 100kHz min SAMPLING RATE

● 0 to +5V INPUT RANGE

● 86dB min SINAD WITH 20kHz INPUT

● DNL: 16-bits “No Missing Codes”

● SINGLE +5V SUPPLY OPERATION

● PIN-COMPATIBLE WITH 12-BIT ADS7820

The ADS7821 is specified at a 100kHz sampling rate,

and guaranteed over the full temperature range. Laser-

trimmed scaling resistors provide a 0 to +5V input

range, with power dissipation under 100mW.

● USES INTERNAL OR EXTERNAL

REFERENCE

The 28-pin ADS7821 is available in a plastic 0.3" DIP

and in an SOIC, both fully specified for operation over

the –25°C to +85°C range.

● FULL PARALLEL DATA OUTPUT

● 100mW max POWER DISSIPATION

● 28-PIN 0.3" PLASTIC DIP AND SOIC

R/C

Clock

BYTE

BUSY

Successive Approximation Register and Control Logic

CDAC

Output

Three

Latches

State

and

5kΩ

0 to +5V Input

Parallel

Three

Data

6.66kΩ

20kΩ

State

Bus

Comparator

Drivers

CAP

REF

Internal

+2.5V Ref

Buffer

4kΩ

InternationalAirportIndustrialPark • MailingAddress:POBox11400, Tucson, AZ85734 • StreetAddress:6730S. TucsonBlvd., Tucson, AZ 85706 • Tel:(520)746-1111 • Twx:910-952-1111

Internet:http://www.burr-brown.com/ • FAXLine:(800)548-6133(US/Canada Only) • Cable:BBRCORP • Telex:066-6491 • FAX:(520)889-1510 • Immediate ProductInfo:(800)548-6132

Printed in U.S.A. June, 1996

^PDS-1^1323A

ADS7821

SBAS048

12 3 4 5 6 7...11

中文翻译

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