AD7823YRZ

更新时间： 2024-11-26 13:05:23

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
11页	156K
描述
2.7 V to 5.5 V, 4.5 ms, 8-Bit ADC in 8-Lead microSOIC/DIP

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AD7823YRZ 数据手册

2.7 V to 5.5 V, 4.5 ␮s, 8-Bit

ADC in 8-Lead microSOIC/DIP

AD7823

FEATURES

FUNCTIONAL BLOCK DIAGRAM

8-Bit ADC with 4 ␮s Conversion Time

Small Footprint 8-Lead microSOIC Package

Specified Over a –40؇C to +125؇C Temperature Range

Inherent Track-and-Hold Functionality

Operating Supply Range: 2.7 V to 5.5 V

Specifications at 2.7 V to 5.5 V and 5 V ؎ 10%

Microcontroller Compatible Serial Interface

Optional Automatic Power-Down

AGND

REF

AD7823

CHARGE

REDISTRIBUTION

DAC

OUT

SERIAL

PORT

SCLK

CLOCK

OSC

IN+

Low Power Operation:

CONTROL

LOGIC

COMP

570 ␮W at 10 kSPS Throughput Rate

2.9 mW at 50 kSPS Throughput Rate

Analog Input Range: 0 V to V_REF

IN–

Reference Input Range: 0 V to V_DD

“Drop In” Upgrade to 10 Bits Available (AD7810)

CONVST

APPLICATIONS

Low Power, Hand-Held Portable Applications

Requiring Analog-to-Digital Conversion

with 8-Bit Accuracy, e.g.,

Battery Powered Test Equipment

Battery Powered Communications Systems

PRODUCT HIGHLIGHTS

1. Complete, 8-Bit ADC in 8-Lead Package

GENERAL DESCRIPTION

The AD7823 is a high speed, low power, 8-bit A/D converter

that operates from a single 2.7 V to 5.5 V supply. The part con-

tains a 4 µs typ successive approximation A/D converter, inherent

track-and-hold functionality (with a pseudo differential input)

and a high speed serial interface that interfaces to most microcon-

trollers. The AD7823 is fully specified over a temperature range

of –40°C to +125°C.

The AD7823 is an 8-bit 4 µs ADC with inherent track-and-

hold functionality and a high speed serial interface—all in an

8-lead microSOIC package. V_REFmay be connected to V_DD

to eliminate the need for an external reference. The result is

a high speed, low power, space saving ADC solution.

2. Low Power, Single Supply Operation

The AD7823 operates from a single +2.7 V to +5.5 V supply

and typically consumes only 9 mW of power. The power

dissipation can be significantly reduced at lower throughput

rates by using the automatic power-down mode, e.g., at a

throughput rate of 10 kSPS the power consumption is only

570 µW.

By using a technique that samples the state of the CONVST

(convert start) signal at the end of a conversion, the AD7823

may be used in an automatic power-down mode. When used in

this mode, the AD7823 powers down automatically at the end

of a conversion and “wakes up” at the start of a new conversion.

This feature significantly reduces the power consumption of the

part at lower throughput rates. The AD7823 can also operate in

a high speed mode where the part is not powered down between

conversions. In this high speed mode of operation, the conver-

sion time of the AD7823 is 4 µs typ. The maximum throughput

rate is dependent on the speed of the serial interface of the

microcontroller.

3. Automatic Power-Down

The automatic power-down mode, whereby the AD7823

“powers down” at the end of a conversion and “wakes up”

before the next conversion, means the AD7823 is ideal for

battery powered applications. See Power vs. Throughput

Rate section.

The part is available in a small, 8-lead 0.3" wide, plastic dual-

in-line package (mini-DIP); in an 8-lead, small outline IC

(SOIC); and in an 8-lead microSOIC package.

4. Serial Interface

An easy to use, fast serial interface allows connection to most

popular microprocessors with no external circuitry.

REV. B

Information furnished by Analog Devices is believed to be accurate and

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

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

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

otherwise under any patent or patent rights of Analog Devices.

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

Tel: 781/329-4700

Fax: 781/326-8703

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

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AD7823YRZ 替代型号

型号	品牌	替代类型	描述	数据表
AD7823YRZ-REEL	ADI	完全替代	IC 1-CH 8-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO8, SOIC-8, Analog to Digita
AD7823YRMZ	ADI	完全替代	暂无描述
AD7823YR	ADI	完全替代	2.7 V to 5.5 V, 4.5 us, 8-Bit ADC in 8-Lead microSOIC/DIP

与AD7823YRZ相关器件

型号	品牌	获取价格	描述	数据表
AD7823YRZ-REEL	ADI	获取价格	IC 1-CH 8-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO8, SOIC-8, Analog to Digita
AD7823YRZ-REEL7	ADI	获取价格	2.7 V to 5.5 V, 4.5 ms, 8-Bit ADC in 8-Lead microSOIC/DIP
AD7824	ADI	获取价格	LC2MOS High Speed 4- & 8-Channel 8-Bit ADCs
AD7824_15	ADI	获取价格	LC MOS High Speed 4- and 8-Channel 8-Bit ADCs
AD7824BCHIPS	ADI	获取价格	4-CH 8-BIT FLASH METHOD ADC, PARALLEL ACCESS, UUC24, DIE-24
AD7824BQ	ADI	获取价格	LC2MOS High Speed 4- & 8-Channel 8-Bit ADCs
AD7824BQ/+	ETC	获取价格	Single-Ended Data Acquisition System
AD7824CQ	ADI	获取价格	LC2MOS High Speed 4- & 8-Channel 8-Bit ADCs
AD7824CQ/+	ETC	获取价格	Single-Ended Data Acquisition System
AD7824KCWG	ETC	获取价格	Single-Ended Data Acquisition System

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