AD7875

更新时间： 2024-11-05 22:53:31

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
20页	332K
描述
LC2MOS Complete, 12-Bit, 100 kHz, Sampling ADCs

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AD7875 数据手册

LC MOS

Complete, 12-Bit, 100 kHz, Sampling ADCs

AD7870/AD7875/AD7876

FEATURES

FUNCTIO NAL BLO CK D IAGRAM

Com plete Monolithic 12-Bit ADC w ith:

2 ␮s Track/ Hold Am plifier

8 ␮s A/ D Converter

On-Chip Reference

Laser-Trim m ed Clock

Parallel, Byte and Serial Digital Interface

72 dB SNR at 10 kHz Input Frequency

(AD7870, AD7875)

57 ns Data Access Tim e

Low Pow er: –60 m W typ

Variety of Input Ranges:

؎3 V for AD7870

0 V to +5 V for AD7875

؎10 V for AD7876

GENERAL D ESCRIP TIO N

T he AD7870/AD7875/AD7876 is a fast, complete, 12-bit A/D

converter. It consists of a track/hold amplifier, 8 µs successive-

approximation ADC, 3 V buried Zener reference and versatile

interface logic. T he ADC features a self-contained internal

clock which is laser trimmed to guarantee accurate control of

conversion time. No external clock timing components are re-

quired; the on-chip clock may he overridden by an external

clock if required.

P RO D UCT H IGH LIGH TS

1. Complete 12-Bit ADC on a Chip.

T he AD7870/AD7875/AD7876 provides all the functions

necessary for analog-to-digital conversion and combines a

12-bit ADC with internal clock, track/hold amplifier and

reference on a single chip.

2. Dynamic Specifications for DSP Users.

T he parts offer a choice of three data output formats: a single,

parallel, 12-bit word; two 8-bit bytes or serial data. Fast bus ac-

cess times and standard control inputs ensure easy interfacing to

modern microprocessors and digital signal processors.

T he AD7870 and AD7875 are fully specified and tested for

ac parameters, including signal-to-noise ratio, harmonic dis-

tortion and intermodulation distortion.

3. Fast Microprocessor Interface.

All parts operate from ±5 V power supplies. T he AD7870 and

AD7876 accept input signal ranges of ±3 V and ±10 V, respec-

tively, while the AD7875 accepts a unipolar 0 V to +5 V input

range. T he parts can convert full power signals up to 50 kHz.

Data access times of 57 ns make the parts compatible with

modern 8- and 16-bit microprocessors and digital signal pro-

cessors. Key digital timing parameters are tested and guaran-

teed over the full operating temperature range.

T he AD7870/AD7875/AD7876 feature dc accuracy specifica-

tions such as linearity, full-scale and offset error. In addition,

the AD7870 and AD7875 are fully specified for dynamic perfor-

mance parameters including distortion and signal-to-noise ratio.

T he parts are available in a 24-pin, 0.3 inch-wide, plastic or her-

metic dual-in-line package (DIP). T he AD7870 and AD7875

are available in a 28-pin plastic leaded chip carrier (PLCC),

while the AD7876 is available and in a 24-pin small outline

(SOIC) package.

REV. B

Inform ation furnished by Analog Devices is believed to be accurate and

reliable. However, no responsibility is assum ed by Analog Devices for its

use, nor for any infringem ents of patents or other rights of third parties

which m ay result from its use. No license is granted by im plication or

otherwise under any patent or patent rights of Analog Devices.

One Technology Way, P.O. Box 9106, Norw ood, MA 02062-9106, U.S.A.

Tel: 617/ 329-4700

Fax: 617/ 326-8703

World Wide Web Site: http:/ / w w w .analog.com

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与AD7875相关器件

型号	品牌	获取价格	描述	数据表
AD7875_15	ADI	获取价格	LC MOS Complete, 12-Bit, 100 kHz, Sampling ADCs
AD7875BQ	ADI	获取价格	LC2MOS Complete, 12-Bit, 100 kHz, Sampling ADCs
AD7875CQ	ADI	获取价格	LC2MOS Complete, 12-Bit, 100 kHz, Sampling ADCs
AD7875CQ	ROCHESTER	获取价格	1-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL/PARALLEL ACCESS, CDIP24, 0.300 INCH, HERM
AD7875KN	ROCHESTER	获取价格	1-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL/PARALLEL ACCESS, PDIP24, 0.300 INCH, PLAS
AD7875KN	ADI	获取价格	LC2MOS Complete, 12-Bit, 100 kHz, Sampling ADCs
AD7875KNZ	ADI	获取价格	LC2MOS Complete, 12-Bit, 100 kHz, Sampling ADCs
AD7875KNZ	ROCHESTER	获取价格	1-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL/PARALLEL ACCESS, PDIP24, 0.300 INCH, ROHS
AD7875KNZ1	ADI	获取价格	LC2MOS Complete, 12-Bit, 100 kHz, Sampling ADCs
AD7875KP	ADI	获取价格	LC2MOS Complete, 12-Bit, 100 kHz, Sampling ADCs

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