AD7192BRUZ

更新时间： 2024-11-04 06:36:11

品牌	Logo	应用领域
亚德诺 - ADI		转换器模数转换器光电二极管 PC
页数	文件大小	规格书
40页	713K
描述
4.8 kHz, Ultralow Noise, 24-Bit Sigma-Delta ADC with PGA

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AD7192BRUZ 数据手册

4.8 kHz, Ultralow Noise, 24-Bit

Sigma-Delta ADC with PGA

AD7192

Temperature measurement

FEATURES

Chromatography

PLC/DCS analog input modules

Data acquisition

RMS noise: 11 nV @ 4.7 Hz (gain = 128)

15.5 noise-free bits @ 2.4 kHz (gain = 128)

Up to 22 noise-free bits (gain = 1)

Offset drift: 5 nV/°C

Medical and scientific instrumentation

Gain drift: 1 ppm/°C

Specified drift over time

GENERAL DESCRIPTION

The AD7192 is a low noise, complete analog front end for high

precision measurement applications. It contains a low noise,

24-bit sigma-delta (Σ-Δ) analog-to-digital converter (ADC).

The on-chip low noise gain stage means that signals of small

amplitude can be interfaced directly to the ADC.

2 differential/4 pseudo differential input channels

Automatic channel sequencer

Programmable gain (1 to 128)

Output data rate: 4.7 Hz to 4.8 kHz

Internal or external clock

The device can be configured to have two differential inputs or

four pseudo differential inputs. The on-chip channel sequencer

allows several channels to be enabled, and the AD7192 sequentially

converts on each enabled channel. This simplifies communication

with the part. The on-chip 4.92 MHz clock can be used as the

clock source to the ADC or, alternatively, an external clock or

crystal can be used. The output data rate from the part can be

varied from 4.7 Hz to 4.8 kHz.

Simultaneous 50 Hz/60 Hz rejection

4 general-purpose digital outputs

Power supply

AV_DD: 3 V to 5.25 V

DV_DD: 2.7 V to 5.25 V

Current: 4.35 mA

Temperature range: –40°C to +105°C

Package: 24-lead TSSOP

The device has two digital filter options. The choice of filter

affects the rms noise/noise-free resolution at the programmed

output data rate, the settling time, and the 50 Hz/60 Hz

rejection. For applications that require all conversions to be

settled, the AD7192 includes a zero latency feature.

INTERFACE

3-wire serial

SPI, QSPI™, MICROWIRE™, and DSP compatible

Schmitt trigger on SCLK

APPLICATIONS

The part operates with a power supply from 3 V to 5.25 V. It

consumes a current of 4.35 mA. It is housed in a 24-lead TSSOP

package.

Weigh scales

Strain gage transducers

Pressure measurement

FUNCTIONAL BLOCK DIAGRAM

AGND AV

DGND REFIN1(+) REFIN1(–)

REFERENCE

DETECT

AD7192

AIN1

AIN2

AIN3

DOUT/RDY

SERIAL

INTERFACE

AND

CONTROL

LOGIC

AIN4

MUX

DIN

Σ-Δ

ADC

AINCOM

PGA

SCLK

SYNC

AGND

TEMP

SENSOR

BPDSW

CLOCK

CIRCUITRY

AGND

MCLK1 MCLK2 P0/REFIN2(–) P1/REFIN2(+)

Figure 1.

Rev. A

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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AD7192BRUZ 替代型号

型号	品牌	替代类型	描述	数据表
AD7192BRUZ-REEL	ADI	类似代替	4.8 kHz, Ultralow Noise, 24-Bit Sigma-Delta ADC with PGA
ADS1263IPW	TI	功能相似	适用于工厂自动化且具有 PGA、基准电压和辅助 ADC 的 32 位 38kSPS 10
ADS1248IPW	TI	功能相似	24-Bit Analog-to-Digital Converters for Temperature Sensors

与AD7192BRUZ相关器件

型号	品牌	获取价格	描述	数据表
AD7192BRUZ-REEL	ADI	获取价格	4.8 kHz, Ultralow Noise, 24-Bit Sigma-Delta ADC with PGA
AD7193	ADI	获取价格	4-Channel, 4.8 kHz, Ultralow Noise, 24-Bit Sigma-Delta ADC with PGA
AD7193BCPZ	ADI	获取价格	4-Channel, 4.8 kHz, Ultralow Noise, 24-Bit Sigma-Delta ADC with PGA
AD7193BCPZ-RL	ADI	获取价格	4-Channel, 4.8 kHz, Ultralow Noise, 24-Bit Sigma-Delta ADC with PGA
AD7193BCPZ-RL7	ADI	获取价格	4-Channel, 4.8 kHz, Ultralow Noise, 24-Bit Sigma-Delta ADC with PGA
AD7193BRUZ	ADI	获取价格	4-Channel, 4.8 kHz, Ultralow Noise, 24-Bit Sigma-Delta ADC with PGA
AD7193BRUZ-REEL	ADI	获取价格	4-Channel, 4.8 kHz, Ultralow Noise, 24-Bit Sigma-Delta ADC with PGA
AD7194	ADI	获取价格	8-Channel, 4.8 kHz, Ultralow Noise, 24-Bit Sigma-Delta ADC with PGA
AD7194BCPZ	ADI	获取价格	8-Channel, 4.8 kHz, Ultralow Noise, 24-Bit Sigma-Delta ADC with PGA
AD7194BCPZ-REEL	ADI	获取价格	8-Channel, 4.8 kHz, Ultralow Noise, 24-Bit Sigma-Delta ADC with PGA

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