ADS7812

更新时间： 2024-11-19 22:53:39

品牌	Logo	应用领域
BB		转换器
页数	文件大小	规格书
17页	383K
描述
Low-Power, Serial 12-Bit Sampling ANALOG-TO-DIGITAL CONVERTER

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中文翻译

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ADS7812 数据手册

ADS7812

Low-Power, Serial 12-Bit Sampling

ANALOG-TO-DIGITAL CONVERTER

FEATURES

DESCRIPTION

● 20µs max CONVERSION TIME

● SINGLE +5V SUPPLY OPERATION

● PIN-COMPATIBLE WITH 16-BIT ADS7813

● EASY-TO-USE SERIAL INTERFACE

● 16-PIN 0.3" PLASTIC DIP AND SOIC

● ±0.5LSB max INL AND DNL

The ADS7812 is a low-power, single +5V supply, 12-

bit sampling analog-to-digital converter. It contains a

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

sample/hold, clock, reference, and serial data inter-

face.

The converter can be configured for a variety of input

ranges including ±10V, ±5V, 0V to 10V, and 0.5V to

4.5V. A high impedance 0.3V to 2.8V input range is

also available (input impedance > 10MΩ). For most

input ranges, the input voltage can swing to +16.5V or

–16.5V without damage to the converter.

● 72dB min SINAD

● USES INTERNAL OR EXTERNAL

REFERENCE

● MULTIPLE INPUT RANGES

● 35mW max POWER DISSIPATION

● NO MISSING CODES

A flexible SPI compatible serial interface allows data

to be synchronized to an internal or external clock.

The ADS7812 is specified at a 40kHz sampling rate

over the –40°C to +85°C temperature range. It is

available in a 16-pin 0.3" plastic DIP or a 16-lead

SOIC package.

● 50µW POWER DOWN MODE

APPLICATIONS

● DATA ACQUISITION SYSTEMS

● INDUSTRIAL CONTROL

● TEST EQUIPMENT

BUSY

PWRD

CONV

● DIGITAL SIGNAL PROCESSING

Successive Approximation Register and Control Logic

Clock

40kΩ⁽¹⁾

8kΩ⁽¹⁾

CDAC

R1_IN

R2_IN

EXT/INT

DATACLK

DATA

Serial

20kΩ⁽¹⁾

Data

Out

Comparator

R3_IN

BUF

CAP

Internal

+2.5V Ref

Buffer

4kΩ⁽¹⁾

NOTE: (1) Actual value may vary ±30%.

REF

International Airport Industrial Park • Mailing Address: PO Box 11400, Tucson, AZ 85734 • Street Address: 6730 S. Tucson Blvd., 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 Product Info: (800) 548-6132

Printed in U.S.A. March, 1997

ADS7812

^PDS-1^1301A

12 3 4 5 6 7...17

中文翻译

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与ADS7812相关器件

型号	品牌	获取价格	描述	数据表
ADS7812P	BB	获取价格	Low-Power, Serial 12-Bit Sampling ANALOG-TO-DIGITAL CONVERTER
ADS7812PB	BB	获取价格	Low-Power, Serial 12-Bit Sampling ANALOG-TO-DIGITAL CONVERTER
ADS7812PB	TI	获取价格	低功耗串行 12 位采样模数转换器 \| N \| 16
ADS7812PBG4	TI	获取价格	1-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDIP16, 0.300 INCH, GREEN, PLASTI
ADS7812U	BB	获取价格	Low-Power, Serial 12-Bit Sampling ANALOG-TO-DIGITAL CONVERTER
ADS7812U/1K	TI	获取价格	1-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO16, PLASTIC, SOIC-16
ADS7812U/1KG4	TI	获取价格	1-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO16, PLASTIC, SOIC-16
ADS7812UB	TI	获取价格	低功耗串行 12 位采样模数转换器 \| DW \| 16 \| -40 to 85
ADS7812UB	BB	获取价格	Low-Power, Serial 12-Bit Sampling ANALOG-TO-DIGITAL CONVERTER
ADS7812UB/1K	BB	获取价格	ADC, Successive Approximation, 12-Bit, 1 Func, 1 Channel, Serial Access, PDSO16, GREEN, PL

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