Datasheet > ADC1256X

ADC1256X

更新时间： 2022-01-19 08:51:00

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ADC1256X 12-Bit 20MSPS ADC\|Data Sheet

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ADC1256X 数据手册

12BIT 20MSPS ADC

ADC1256X

FEATURES

GENERAL DESCRIPTION

The ADC1256X is a CMOS 12bit analog-to-digital

converter (ADC). It converts the analog input signal

Resolution : 12bit

Maximum Conversion Rate : 20MHz

Package Type : 48TSSOP

into 12bit binary digital codes at

sampling rate of 20MHz.

maximum

Power Supply : 2.5V

The device is a monolithic ADC with an on-chip,

high-performance, sample-and-hold Amplifier (SHA)

Power Consumption : 115mW (typical)

Reference Voltage : 1.75V, 0.75V (dual reference)

Input Range : ±1V (differential)

and current reference.

The structure allows both

differential and single-ended input.

Differential Linearity Error : ±1.0 LSB (Max)

Integral Linearity Error : ±3.0 LSB (Max)

Signal to Noise & Distortion Ratio : 62dB (Typ.)

Digital Output : CMOS Level

TYPICAL APPLICATIONS

High Definition TV (HDTV)

Video Applications

Operating Temperature Range : 0º C ~ 70º C

CCD Imaging (Copiers, Scanners, Cameras)

Medical Imaging

Digital Communications

FUNCTIONAL BLOCK DIAGRAM

VDD25A1

VSS25A1

VBBA1

VDD25A2

VSS25A2

VBBA2

AINT

AINC

MDAC1

GAIN=8

MDAC2

GAIN=8

MDAC3

GAIN=8

SHA

REFTOP1

REFTOP

DO[11:0]

[MSB:LSB]

FLASH

REFBOT

DIGITAL CORRECTION LOGIC

REFBOT1

Common Mode

Level Generator

MAIN

BIAS

Clock

Generator

CML

SPEEDUP

ITEST

STBY

CKIN

Ver 1.1 (February. 2000)

No responsibility is assumed by SEC for its use nor for any infringements of patents

or other rights of third parties that may result from its use. The content of this

datasheet is subject to change without any notice.

SAMSUNG ELECTRONICS Co. LTD

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