ADC12762

更新时间： 2024-09-23 22:53:35

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
20页	430K
描述
12-Bit, 1.4 MHz, 300 mW A/D Converter with Input Multiplexer and Sample/Hold

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ADC12762 数据手册

June 1999

ADC12762

12-Bit, 1.4 MHz, 300 mW A/D Converter

with Input Multiplexer and Sample/Hold

General Description

Using an innovative multistep conversion technique, the

12-bit ADC12762 CMOS analog-to-digital converter digitizes

signals at a 1.4 MHz sampling rate while consuming a maxi-

Features

n Built-in sample-and-hold

n Single +5V supply

n Single channel or 2 channel multiplexer operation

mum of only 300 mW on

a single +5V supply. The

ADC12762 performs 12-bit conversion in three

Key Specifications

lower-resolution “flash” conversions, yielding a fast A/D with-

out the cost and power dissipation associated with true flash

approaches.

n Sampling rate

1.4 MHz (min)

n Conversion time

593 ns (typ)

67.5 dB (min)

300 mW (max)

Guaranteed

n SNR, f_IN100 kHz

The analog input voltage to the ADC12762 is tracked and

held by an internal sampling circuit, allowing high frequency

input signals to be accurately digitized without the need for

an external sample-and-hold circuit. The ADC12762 features

two sample-and-hold/flash comparator sections which allow

the converter to acquire one sample while converting the

previous. This pipelining technique increases conversion

speed without sacrificing performance. The multiplexer out-

put is available to the user in order to perform additional ex-

ternal signal processing before the signal is digitized.

n Power dissipation (f_s1.4 MHz)

n No missing codes over temperature

Applications

n CCD image scanners

n Digital signal processor front ends

n Instrumentation

n Disk drives

n Mobile telecommunications

n Waveform digitizers

When the converter is not digitizing signals, it can be placed

in the Standby mode; typical power consumption in this

mode is 250 µW.

ADC12762 Block Diagram

DS012811-1

Ordering Information

Commercial (0˚C ≤ T_A≤ +70˚C)

Package

ADC12762CCV

V44 Plastic Leaded Chip Carrier

Evaluation Board

ADC12062EVAL

TRI-STATE^®is a registered trademark of National Semiconductor Corporation.

DS012811

www.national.com

12 3 4 5 6 7...20

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与ADC12762相关器件

型号	品牌	获取价格	描述	数据表
ADC12762CCV	NSC	获取价格	12-Bit, 1.4 MHz, 300 mW A/D Converter with Input Multiplexer and Sample/Hold
ADC12762CCVX	ETC	获取价格	Single-Ended Data Acquisition System
ADC1276X	ETC	获取价格	ADC1276X 14BIT 10MSPS ADC\|Data Sheet
ADC128	MPSIND	获取价格	1W, Miniature SIP, Single & Dual Output DC/DC Converters
ADC1280X	ETC	获取价格	ADC1280X 10BIT 30MSPS ADC ADC1280X\|Data Sheet
ADC1283	STMICROELECTRONICS	获取价格	8通道，50ksps至200ksps，12位A/D转换器
ADC128D818	NSC	获取价格	12-Bit, 8-Channel, ADC System Monitor with Temperature Sensor, Internal/External Reference
ADC128D818	TI	获取价格	具有温度传感器、内部/外部电压基准和 I2C 接口的 12 位、82SPS、8 通道 Δ-
ADC128D818CIMT	NSC	获取价格	12-Bit, 8-Channel, ADC System Monitor with Temperature Sensor, Internal/External Reference
ADC128D818CIMT/NOPB	TI	获取价格	12-Bit, 82SPS, 8-Ch Delta-Sigma ADC with Temp Sensor, INT / EXT Voltage Reference &amp

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