AD9225ARZ

更新时间： 2024-10-28 12:52:15

品牌	Logo	应用领域
亚德诺 - ADI		转换器模数转换器光电二极管
页数	文件大小	规格书
25页	914K
描述
Complete 12-Bit, 25 MSPS Monolithic A/D Converter

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替代型号

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AD9225ARZ 数据手册

Complete 12-Bit, 25 MSPS

Monolithic A/D Converter

AD9225

FEATURES

FUNCTIONAL BLOCK DIAGRAM

Monolithic 12-Bit, 25 MSPS ADC

Low Power Dissipation: 280 mW

Single 5 V Supply

No Missing Codes Guaranteed

Differential Nonlinearity Error: ꢀ0.4 LSB

Complete On-Chip Sample-and-Hold Amplifier and

Voltage Reference

Signal-to-Noise and Distortion Ratio: 71 dB

Spurious-Free Dynamic Range: –85 dB

Out-of-Range Indicator

Straight Binary Output Data

28-Lead SOIC

CLK

AVDD

DRVDD

SHA

VINA

VINB

MDAC1

MDAC2

MDAC3

GAIN = 16

GAIN = 4

ADC

CAPT

CAPB

DIGITAL CORRECTION LOGIC

VREF

OUTPUT BUFFERS

OTR

SENSE

BIT 1

(MSB)

MODE

SELECT

BIT 12

AD9225

(LSB)

28-Lead SSOP

REFCOM

CML

AVSS

DRVSS

Compatible with 3 V Logic

A single clock input is used to control all internal conversion

cycles. The digital output data is presented in straight binary

output format. An out-of-range signal indicates an overflow

condition that can be used with the most significant bit to deter-

mine low or high overflow.

GENERAL DESCRIPTION

The AD9225 is a monolithic, single-supply, 12-bit, 25 MSPS

analog-to-digital converter with an on-chip, high performance

sample-and-hold amplifier and voltage reference. The AD9225

uses a multistage differential pipelined architecture with output

error correction logic to provide 12-bit accuracy at 25 MSPS

data rates, and guarantees no missing codes over the full operat-

ing temperature range.

PRODUCT HIGHLIGHTS

The AD9225 is fabricated on a very cost effective CMOS pro-

cess. High speed precision analog circuits are combined with

high density logic circuits.

The AD9225 combines a low cost, high speed CMOS process

and a novel architecture to achieve the resolution and speed of

existing bipolar implementations at a fraction of the power

consumption and cost.

The AD9225 offers a complete, single-chip sampling, 12-bit,

25 MSPS analog-to-digital conversion function in 28-lead

SOIC and SSOP packages.

The input of the AD9225 allows for easy interfacing to both

imaging and communications systems. With the device’s truly

differential input structure, the user can select a variety of input

ranges and offsets, including single-ended applications. The

dynamic performance is excellent.

Low Power—The AD9225 at 280 mW consumes a fraction of

the power presently available in monolithic solutions.

On-Board Sample-and-Hold Amplifier (SHA)—The versa-

tile SHA input can be configured for either single-ended or

differential inputs.

The sample-and-hold amplifier (SHA) is well suited for both

multiplexed systems that switch full-scale voltage levels in succes-

sive channels and sampling single-channel inputs at frequencies

up to and well beyond the Nyquist rate.

Out-of-Range (OTR)—The OTR output bit indicates when

the input signal is beyond the AD9225’s input range.

Single Supply—The AD9225 uses a single 5 V power supply,

simplifying system power supply design. It also features a sepa-

rate digital driven supply line to accommodate 3 V and 5 V logic

families.

The AD9225’s wideband input, combined with the power and

cost savings over previously available monolithics, suits applica-

tions in communications, imaging, and medical ultrasound.

The AD9225 has an on-board programmable reference. An

external reference can also be chosen to suit the dc accuracy

and temperature drift requirements of an application.

Pin Compatibility—The AD9225 is pin compatible with the

AD9220, AD9221, AD9223, and AD9224 ADCs.

Rev. C

Information furnished by Analog Devices is believed to be accurate and

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

use, norforanyinfringementsofpatentsorotherrightsofthirdpartiesthat

may result from its use. No license is granted by implication or otherwise

under any patent or patent rights of Analog Devices. Trademarks and

registered trademarks are the property of their respective owners.

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

Tel: 781/329-4700

Fax:

www.analog.com

781/461-3113

12 3 4 5 6 7...25

中文翻译

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AD9225ARZ 替代型号

型号	品牌	替代类型	描述	数据表
AD9225ARRL	ADI	完全替代	IC 1-CH 12-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PDSO28, MS-013AE, SOIC-28, Analog
AD9225ARZRL	ADI	类似代替	Monolithic A/D Converter
AD9225AR	ADI	类似代替	Complete 12-Bit, 25 MSPS Monolithic A/D Converter

与AD9225ARZ相关器件

型号	品牌	获取价格	描述	数据表
AD9225ARZRL	ADI	获取价格	Monolithic A/D Converter
AD9225-EB	ADI	获取价格	Complete 12-Bit, 25 MSPS Monolithic A/D Converter
AD9226	ADI	获取价格	Complete 12-Bit, 65 MSPS ADC Converter
AD9226_01	ADI	获取价格	Complete 12-Bit, 65 MSPS ADC Converter
AD9226ARS	ADI	获取价格	Complete 12-Bit, 65 MSPS ADC Converter
AD9226ARSRL	ADI	获取价格	IC 1-CH 12-BIT FLASH METHOD ADC, PARALLEL ACCESS, PDSO28, SSOP-28, Analog to Digital Conve
AD9226ARSZ	ADI	获取价格	Complete 12-Bit, 65 MSPS ADC Converter
AD9226ARSZRL	ADI	获取价格	暂无描述
AD9226AST	ADI	获取价格	Complete 12-Bit, 65 MSPS ADC Converter
AD9226ASTZRL	ADI	获取价格	12-Bit, 65 MSPS Analog-to-Digital Converter

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