AD7824TQ/883B

更新时间： 2024-09-14 21:53:35

品牌	Logo	应用领域
亚德诺 - ADI		转换器
页数	文件大小	规格书
16页	248K
描述
LC2MOS High Speed 4- & 8-Channel 8-Bit ADCs

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AD7824TQ/883B 数据手册

LC²MOS High Speed

4- and 8-Channel 8-Bit ADCs

AD7824/AD7828

FUNCTIONAL BLOCK DIAGRAM

FEATURES

4 or 8 Analog Input Channels

Built-In Track-and-Hold Function

10 kHz Signal Handling on Each Channel

Fast Microprocessor Interface

Single 5 V Supply

Low Power: 50 mW

Fast Conversion Rate: 2.5 ␮s/Channel

Tight Error Specification: 1/2 LSB

(+)

(–)

DB7

DB6

DB5

DB4

4-BIT

FLASH

ADC

REF

(4MSB)

AIN1

THREE-

STATE

DRIVERS

4-BIT

DAC

AIN4

MUX*

(+)

REF

DB3

DB2

DB1

DB0

4-BIT

FLASH

ADC

AIN8

(4LSB)

ADDRESS

LATCH

DECODE

TIMING AND CONTROL

CIRCUITRY

INT

RDY

A0 A1 A2**

*AD7824 – 4-CHANNEL MUX

**AD7828 – 8-CHANNEL MUX

A2 – AD7828 ONLY

GENERAL DESCRIPTION

PRODUCT HIGHLIGHTS

The AD7824 and AD7828 are high speed, multichannel, 8-bit

ADCs with a choice of four (AD7824) or eight (AD7828) multi-

plexed analog inputs. A half-flash conversion technique gives a fast

conversion rate of 2.5 µs per channel, and the parts have a built-in

track-and-hold function capable of digitizing full-scale signals of

10 kHz (157 mV/µs slew rate) on all channels. The AD7824 and

AD7828 operate from a single 5 V supply and have an analog input

range of 0 V to 5 V, using an external 5 V reference.

1. 4- or 8-channel input multiplexer gives cost effective,

space-saving multichannel ADC system.

2. Fast conversion rate of 2.5 µs/channel features a per-channel

sampling frequency of 100 kHz for the AD7824 or 50 kHz

for the AD7828.

3. Built-in track-and-hold function allows handling of four or

eight channels up to 10 kHz bandwidth (157 mV/µs slew rate).

4. Tight total unadjusted error spec and channel-to-channel

matching eliminate the need for user trims.

Microprocessor interfacing of the parts is simple, using standard

Chip Select (CS) and Read (RD) signals to initiate the conversion

and read the data from the three-state data outputs. The half-flash

conversion technique means that there is no need to generate a

clock signal for the ADC. The AD7824 and AD7828 can be

interfaced easily to most popular microprocessors.

5. Single 5 V supply simplifies system power requirements.

6. Fast, easy-to-use digital interface allows connection to most

popular microprocessors with minimal external components.

No clock signal is required for the ADC.

The AD7824 and AD7828 are fabricated in an advanced, all

ion-implanted, linear compatible CMOS process (LC²MOS) and

have low power dissipation of 40 mW (typ). The AD7824 is

available in a 0.3" wide, 24-lead “skinny” DIP, while the AD7828

is available in a 0.6" wide, 28-lead DIP and in 28-terminal surface-

mount packages.

REV. F

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 companies.

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

Tel: 781/329-4700

Fax: 781/326-8703

www.analog.com

12 3 4 5 6 7...16

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AD7824TQ/883B 替代型号

型号	品牌	替代类型	描述	数据表
5962-8876401LX	ADI	功能相似	High Speed, 4-Channel, 8-Bit CMOS ADC
AD7824BQ	ADI	功能相似	LC2MOS High Speed 4- & 8-Channel 8-Bit ADCs
AD7824CQ	ADI	功能相似	LC2MOS High Speed 4- & 8-Channel 8-Bit ADCs

与AD7824TQ/883B相关器件

型号	品牌	获取价格	描述	数据表
AD7824UE/883B	ADI	获取价格	IC 4-CH 8-BIT FLASH METHOD ADC, PARALLEL ACCESS, CQCC28, CERAMIC, LCC-28, Analog to Digita
AD7824UQ	ADI	获取价格	LC2MOS High Speed 4- & 8-Channel 8-Bit ADCs
AD7824UQ/883	ETC	获取价格	Single-Ended Data Acquisition System
AD7824UQ/883B	ADI	获取价格	LC2MOS High Speed 4- & 8-Channel 8-Bit ADCs
AD7825	ADI	获取价格	3 V/5 V, 2 MSPS, 8-Bit, 1-, 4-, 8-Channel Sampling ADCs
AD7825_15	ADI	获取价格	3 V/5 V, 2 MSPS, 8-Bit, 1-/4-/8-Channel Sampling ADCs
AD7825BN	ROCHESTER	获取价格	4-CH 8-BIT FLASH METHOD ADC, PARALLEL ACCESS, PDIP24, 0.300 INCH, PLASTIC, MS-001AF, DIP-2
AD7825BN	ADI	获取价格	3 V/5 V, 2 MSPS, 8-Bit, 1-, 4-, 8-Channel Sampling ADCs
AD7825BNZ	ADI	获取价格	IC 4-CH 8-BIT FLASH METHOD ADC, PARALLEL ACCESS, PDIP24, 0.300 INCH, LEAD FREE, PLASTIC, M
AD7825BNZ	ROCHESTER	获取价格	4-CH 8-BIT FLASH METHOD ADC, PARALLEL ACCESS, PDIP24, 0.300 INCH, LEAD FREE, PLASTIC, MS-0

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