AD7992BRM-1

更新时间： 2024-11-05 22:27:55

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
21页	261K
描述
2-Channel, 12-Bit ADC with I2C Compatible Interface in 10-Lead MSOP

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数据手册
替代型号

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AD7992BRM-1 数据手册

PRELIMINARYTECHNICALDATA

2-Channel, 12-Bit ADC with I²C Compatible

Preliminary Technical Data

Interfacein10-LeadMSOP

AD7992

FEATURES

FUNCTIONAL BLOCK DIAGRAM

12-Bit ADC with Fast Conversion Time: 2 µs

Two Single-Ended Analog Input Channels

Specified for V_DDof 2.7 V to 5.5 V

Low Power Consumption

Fast Throughput Rate:- 188 KSPS

Sequencer Operation

GND

CONVST

AD7992

12-BIT SUCCESSIVE

APPROXIMATION

ADC

CONTROL

LOGIC

I/P

MUX

T/H

2/REF

Automatic Cycle Mode

I²C^RCompatible Serial Interface

I²C^RInterface supports:

OSCILLATOR

DATA

LIMIT

HIGH

Standard, Fast, and High-Speed Modes

Out of Range Indicator/ALERT Function

Pin-Selectable Addressing via AS

Two Versions Allow Five I²C Addresses

Shutdown Mode: 1µA max

CONVERSION

RESULT REGISTER

HYSTERESIS

DATA

LIMIT

LOW

CONFIGURATION

ALERT

DATA

LIMIT

HIGH

ALERT STATUS

10-Lead MSOP Package

HYSTERESIS

DATA

LIMIT

CYCLE TIMER

GENERAL DESCRIPTION

LOW

The AD7992 is a 12-bit, high speed, low power, succes-

sive-approximation ADC. The part operates from a single

2.7 V to 5.5 V power supply and features a conversion

time of 2 µs. The part contains a two channel multiplexer

and track/hold amplifier which can handle input frequen-

cies in excess of TBD kHz.

SCL

SDA

I C INTERFACE

GND

PRODUCT HIGHLIGHTS

1. 2 µs Conversion time with low power consumption.

2. I²C Compatible Serial Interface with pin selectable

addresses. Two AD7992 versions allow five

AD7992 devices to be connected to the same serial bus.

The AD7992 provides a two-wire serial interface which is

compatible with I²C interfaces. The part comes in two

versions, AD7992-0, and AD7992-1. Each version allows

for a minimum of two different I²C addresses. The

AD7992-0 supports Standard and Fast I²C interface

Modes, while the AD7992-1 supports Standard, Fast, and

two High-Speed I²C Interface Modes.

3. The part features automatic shutdown while not convert-

ing to maximize power efficiency. Current consumption

is 1µA max when in shutdown.

The AD7992 normally remains in a power-down state

while not converting, powering up only to perform con-

versions. The conversion process can be controlled using

the CONVST pin, an Automatic Conversion Cycle se-

lected through software control, or a mode where conver-

sions occur across read Address operations. The AD7992

uses advanced design techniques to achieve low power

dissipation with a fast conversion time. There are no pipe-

line delays associated with the part.

4. Reference can be driven up to the power supply.

5. Out of Range Indicator which can be software disabled/

enabled.

6. Oneshot and automatic conversion rates.

7. No Pipeline Delay

The part features a standard successive-approximation

ADC.

Part Number No. of Bits No. of Channels

Package

20 TSSOP

16 TSSOP

20 TSSOP

16 TSSOP

The reference for the part is applied externally and can be

in the range of 1.2V to V_DD.This allows the widest dy-

namic input range to the ADC.

AD7998

AD7994

AD7997

AD7993

1 2

1 0

On-chip registers can be programmed with high and low

limits for the conversion result, and an open drain Out of

Range Indicator output (ALERT), becomes active when

the programmed high or low limits are violated. This

output can be used as an interrupt.

Table 1. Related Products

SMBus is a trademark and I²C is a registered trademark of Philips Corporation

REV. PrH 09/03

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

Analog Devices, Inc., 2003

12 3 4 5 6 7...21

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AD7992BRM-1 替代型号

型号	品牌	替代类型	描述	数据表
AD7992BRMZ-1REEL	ADI	完全替代	2-Channel, 12-Bit ADC with I2C-Compatible
AD7992BRMZ-1	ADI	功能相似	2-Channel, 12-Bit ADC with I2C-Compatible
AD7994BRUZ-0	ADI	功能相似	4-Channel, 10- and 12-Bit ADCs with I2C Compatible Interface in 16-Lead TSSOP

与AD7992BRM-1相关器件

型号	品牌	获取价格	描述	数据表
AD7992BRM-1REEL	ADI	获取价格	2-Channel, 12-Bit ADC with I2C-Compatible
AD7992BRMZ-0	ADI	获取价格	2-Channel, 12-Bit ADC with I2C-Compatible
AD7992BRMZ-0REEL	ADI	获取价格	2-Channel, 12-Bit ADC with I2C-Compatible
AD7992BRMZ-1	ADI	获取价格	2-Channel, 12-Bit ADC with I2C-Compatible
AD7992BRMZ-1REEL	ADI	获取价格	2-Channel, 12-Bit ADC with I2C-Compatible
AD7993	ADI	获取价格	4-Channel, 12-/10-Bit ADCs with I2C Compatible Interface in 16-Lead TSSOP
AD7993_15	ADI	获取价格	4-Channel, 10- and 12-Bit ADCs with IC Compatible Interface in 16-Lead TSSOP
AD7993-0	ADI	获取价格	4-Channel, 10- and 12-Bit ADCs with I2C Compatible Interface in 16-Lead TSSOP
AD7993-1	ADI	获取价格	4-Channel, 10- and 12-Bit ADCs with I2C Compatible Interface in 16-Lead TSSOP
AD7993BRU-0	ADI	获取价格	4-Channel, 12-/10-Bit ADCs with I2C Compatible Interface in 16-Lead TSSOP

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