AD7734

更新时间： 2024-11-05 22:49:59

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
32页	1406K
描述
4-Channel, +-10 V Input Range, High Throughput, 24-Bit sigma ∆ ADC

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AD7734 数据手册

4-Channel, ± ±1 ꢀ ꢁnꢂpu ꢃanꢄe, ꢅHꢄh

Thropꢄhꢂpu, 24-BHu ∑-∆ ADC

AD7734

FEATURES

FUNCTIONAL BLOCK DIAGRAM

REFIN(–) REFIN(+)

High resolution ADC

24 bits no missing codes

±±0±±25% nonlinearity

AIN0

AIN1

AIN2

AIN3

REFERENCE

DETECT

Optimized for fast channel switching

18-bit p-p resolution (21 bits effective) at 5±± Hz

16-bit p-p resolution (19 bits effective) at 2 kHz

14-bit p-p resolution (18 bits effective) at 15 kHz

On-chip per channel system calibration

4 single-ended analog inputs

Input ranges +5 V, ±5 V, +1± V, ±1± V

Overvoltage tolerant

BUFFER

MUX

24-BIT

Σ−∆ ADC

AD7734

BIASHI

BIASLO

SCLK

DOUT

Up to ±1605 V not affecting adꢀacent channel

Up to ±5± V absolute maximum

3-wire serial interface

CALIBRATION

CIRCUITRY

SERIAL

INTERFACE

SPI™, QSPI™, MICROWIRE™, and DSP compatible

Schmitt trigger on logic inputs

Single-supply operation

RDY

CLOCK

CONTROL

LOGIC

I/O PORT

GENERATOR

RESET

SYNC/P1

5 V analog supply

3 V or 5 V digital supply

Package: 28-lead TSSOP

AGND AV

MCLKOUT MCLKIN DGND DV

Figure 1.

APPLICATIONS

PLCs/DCS

Multiplexing applications

Process control

Industrial instrumentation

The differential reference input features “No-Reference” detect

capability. The ADC also supports per channel system

calibration options. The digital serial interface can be

configured for 3-wire operation and is compatible with

microcontrollers and digital signal processors. All interface

inputs are Schmitt triggered.

GENERAL DESCRIPTION

The part is specified for operation over the extended industrial

temperature range of –40°C to +105°C.

The AD7734 is a high precision, high throughput analog front

end. True 16-bit p-p resolution is achievable with a total

conversion time of 500 µs (2 kHz channel switching), making it

ideally suitable for high resolution multiplexing applications.

Other parts in the AD7734 family are the AD7732 and

the AD7738.

The part can be configured via a simple digital interface, which

allows users to balance the noise performance against data

throughput up to a 15.4 kHz.

The AD7732 is similar to AD7734, but its analog front end

features two fully differential input channels.

The AD7738 analog front end is configurable for four fully

differential or eight single-ended input channels, features

0.625 V to 2.5 V bipolar/unipolar input ranges, and accepts a

common-mode input voltage from 200 mV to AVDD–300 mV.

The AD7738 multiplexer output is pinned out externally,

allowing the user to implement programmable gain or signal

conditioning before being applied to the ADC.

The analog front end features four single-ended input channels

with unipolar or true bipolar input ranges to 10 V while

operating from a single +5 V analog supply. The part has an

overrange and underrange detection capability and accepts an

analog input overvoltage to 16.5 V without degrading the

performance of the adjacent channels.

Rev0 ±

Information furnished by Analog Devices is believed to be accurate and reliable0

However, no responsibility is assumed by Analog Devices for its use, nor for any

infringements of patents or other rights of third parties that may result from its use0

Specifications subꢀect to change without notice0 No license is granted by implication

or otherwise under any patent or patent rights of Analog Devices0 Trademarks and

registered trademarks are the property of their respective companies0

One Technology Way, P0O0 Box 91±6, Norwood, MA ±2±62-91±6, U0S0A0

Tel: 7810329047±±

Fax: 7810326087±3

www0analog0com

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与AD7734相关器件

型号	品牌	获取价格	描述	数据表
AD7734BRU	ADI	获取价格	4-Channel, +-10 V Input Range, High Throughput, 24-Bit sigma ∆ ADC
AD7734BRU-REEL7	ADI	获取价格	4-CH 24-BIT DELTA-SIGMA ADC, SERIAL ACCESS, PDSO28, TSSOP-28
AD7734BRUZ	ADI	获取价格	4-Channel, 10 V Input Range, High Throughput, 24-Bit ADC
AD7734BRUZ-REEL	ADI	获取价格	4-Channel, 10 V Input Range, High Throughput, 24-Bit ADC
AD7734BRUZ-REEL7	ADI	获取价格	4-Channel, 10 V Input Range, High Throughput, 24-Bit ADC
AD7738	ADI	获取价格	8-Channel, High Throughput,
AD7738BRU	ADI	获取价格	8-Channel, High Throughput,
AD7738BRU-REEL7	ADI	获取价格	8-CH 24-BIT DELTA-SIGMA ADC, SERIAL ACCESS, PDSO28, MO-153AE, TSSOP-28
AD7738BRUZ	ADI	获取价格	8-Channel, High Throughput, 24-Bit - ADC
AD7738BRUZ-REEL7	ADI	获取价格	8-Channel, High Throughput 24-Bit ADC

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