AD7789BRMZ

更新时间： 2024-09-13 12:29:31

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
20页	382K
描述
Low Power, 16-/24-Bit, Sigma-Delta ADCs

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AD7789BRMZ 数据手册

Low Power, 16-/24-Bit,

Sigma-Delta ADCs

AD7788/AD7789

FUNCTIONAL BLOCK DIAGRAM

FEATURES

REFIN(+) REFIN(–) GND

AD7788: 16-bit resolution

AD7789: 24-bit resolution

Power

AD7788/

AD7789

CLOCK

Supply: 2.5 V to 5.25 V operation

Normal: 75 μA maximum

Power-down: 1 μA maximum

RMS noise: 1.5 μV

DOUT/RDY

DIN

AIN(+)

AIN(–)

SERIAL

INTERFACE

AND

CONTROL

LOGIC

Σ-Δ

ADC*

SCLK

AD7788: 16-bit p-p resolution

AD7789: 19-bit p-p resolution (21.5 bits effective)

Integral nonlinearity: 3.5 ppm typical

Simultaneous 50 Hz and 60 Hz rejection

Internal clock oscillator

*AD7788: 16-BIT ADC

AD7789: 24-BIT ADC

Figure 1.

GENERAL DESCRIPTION

V_DDmonitor channel

The AD7788/AD7789 are low power, low noise, analog front

ends for low frequency measurement applications. The AD7789

contains a low noise, 24-bit, ∑-Δ ADC with one differential

input. The AD7788 is a 16-bit version of the AD7789.

10-lead MSOP

INTERFACE

3-wire serial

The devices operate from an internal clock. Therefore, the

user does not have to supply a clock source to the devices.

The output data rate is 16.6 Hz, which gives simultaneous

50 Hz/60 Hz rejection.

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

Schmitt trigger on SCLK

APPLICATIONS

The parts operate with a single power supply from 2.5 V to

5.25 V. When operating from a 3 V supply, the power dissi-

pation for the part is 225 μW maximum. The AD7788/AD7789

are available in a 10-lead MSOP.

Smart transmitters

Battery applications

Portable instrumentation

Sensor measurement

Temperature measurement

Pressure measurement

Weigh scales

4 to 20 mA loops

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 that may result from its use. Specifications subject to change without notice. No

license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Trademarks and registeredtrademarks arethe property of their respective owners.

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

Tel: 781.329.4700

Fax: 781.461.3113

www.analog.com

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AD7789BRMZ 替代型号

型号	品牌	替代类型	描述	数据表
AD7789BRMZ-REEL	ADI	类似代替	Low Power, 16-/24-Bit, Sigma-Delta ADCs
AD7789BRM	ADI	类似代替	Low Power, 16-/24-Bit Sigma-Delta ADC
AD7789BRM-REEL	ADI	类似代替	Low Power, 16-/24-Bit Sigma-Delta ADC

与AD7789BRMZ相关器件

型号	品牌	获取价格	描述	数据表
AD7789BRMZ-REEL	ADI	获取价格	Low Power, 16-/24-Bit, Sigma-Delta ADCs
AD779	ADI	获取价格	14-Bit 128 kSPS Complete Sampling ADC
AD7790	ADI	获取价格	Low Power, 16-Bit Buffered Sigma-Delta ADC
AD7790B	ADI	获取价格	Low Power, 16-Bit Buffered Sigma-Delta ADC
AD7790BRM	ADI	获取价格	Low Power, 16-Bit Buffered Sigma-Delta ADC
AD7790BRM-REEL	ADI	获取价格	Low Power, 16-Bit Buffered Sigma-Delta ADC
AD7790BRMZ	ADI	获取价格	Low Power, 16-Bit Buffered Sigma-Delta ADC
AD7790BRMZ-REEL	ADI	获取价格	Low Power, 16-Bit Buffered Sigma-Delta ADC
AD7791	ADI	获取价格	Low Power, Buffered 24-Bit Sigma-Delta ADC
AD7791_17	ADI	获取价格	Low Power, Buffered 24-Bit Sigma-Delta ADC

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