Datasheet > ADC10731_06

ADC10731_06

更新时间： 2022-04-23 23:00:11

品牌	Logo	应用领域
美国国家半导体 - NSC		转换器复用器
页数	文件大小	规格书
29页	1029K
描述
10-Bit Plus Sign Serial I/O A/D Converters with Mux, Sample/Hold and Reference

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ADC10731_06 数据手册

April 2006

ADC10731/ADC10732/ADC10734/ADC10738

10-Bit Plus Sign Serial I/O A/D Converters with Mux,

Sample/Hold and Reference

General Description

Features

n 0V to analog supply input range

n Serial I/O (MICROWIRE compatible)

n Software or hardware power down

n Analog input sample/hold function

n Ratiometric or absolute voltage referencing

n No zero or full scale adjustment required

n No missing codes over temperature

n TTL/CMOS input/output compatible

The ADC12731, ADC12732 and ADC12734 are obsolete

or on lifetime buy and included for reference only.

This series of CMOS 10-bit plus sign successive approxima-

tion A/D converters features versatile analog input multiplex-

ers, sample/hold and a 2.5V band-gap reference. The 1-, 2-,

4-, or 8-channel multiplexers can be software configured for

single-ended or differential mode of operation.

An input sample/hold is implemented by a capacitive refer-

ence ladder and sampled-data comparator. This allows the

analog input to vary during the A/D conversion cycle.

Key Specifications

In the differential mode, valid outputs are obtained even

when the negative inputs are greater than the positive be-

cause of the 10-bit plus sign output data format.

n Resolution

10 bits plus sign

n Single supply

n Power consumption

n In power down mode

n Conversion time

n Sampling rate

37 mW (Max)

18 µW

5µs (Max)

74 kHz (Max)

2.5V 2% (Max)

The serial I/O is configured to comply with the NSC MI-

™

CROWIRE serial data exchange standard for easy inter-

™

face to the COPS and HPC families of controllers, and

can easily interface with standard shift registers and micro-

processors.

n Band-gap reference

Applications

n Medical instruments

n Portable and remote instrumentation

n Test equipment

ADC10738 Simplified Block Diagram

01139001

™

COPS , HPC and MICROWIRE are trademarks of National Semiconductor Corporation.

DS011390

www.national.com

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