Datasheet > AD7171BCPZ-REEL7

AD7171BCPZ-REEL7

更新时间： 2024-11-04 06:36:11

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亚德诺 - ADI		/
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16-Bit Low Power Sigma-Delta ADC

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AD7171BCPZ-REEL7 数据手册

16-Bit Low Power Sigma-Delta ADC

AD7171

FUNCTIONAL BLOCK DIAGRAM

FEATURES

Output data rate: 125 Hz

GND

REFIN(+) REFIN(–)

Pin-programmable power-down and reset

Status function

Internal clock oscillator

AIN(+)

AIN(–)

DOUT/RDY

SCLK

16-BIT Σ-Δ

ADC

Current: 135 μA

PDRST

Power supply: 2.7 V to 5.25 V

–40°C to +105°C temperature range

Package: 10-lead 3 mm x 3 mm LFCSP

INTERNAL

CLOCK

AD7171

Figure 1.

INTERFACE

Table 1.

2-wire serial (read-only device)

SPI compatible

Schmitt trigger on SCLK

P-P

V_REF= V_DD

5 V

RMS Noise P-P Noise Resolution ENOB

11.5 μV

6.9 μV

76 μV

45 μV

16 bits

3 V

APPLICATIONS

Weigh scales

Pressure measurement

Industrial process control

Portable instrumentation

GENERAL DESCRIPTION

The AD7171 is a very low power 16-bit analog-to-digital converter

(ADC). It contains a precision 16-bit sigma-delta (Σ-Δ) ADC

and an on-chip oscillator. Consuming only 135 μA, the AD7171

is particularly suitable for portable or battery operated products

where very low power is a requirement. The AD7171 also has a

power-down mode in which the device consumes 5 ꢀA, thus

increasing the battery life of the product.

The output data rate of the AD7171 is 125 Hz, whereas the

settling time is 24 ms. The AD7171 has one differential input

and a gain of 1. This is useful in applications where the user

needs to use an external amplifier to implement system-specific

filtering or gain requirements.

The AD7171 operates with a power supply from 2.7 V to 5.25 V.

It is available in a 10-lead LFCSP package.

For ease-of-use, all the features of the AD7171 are controlled by

dedicated pins. Each time a data read occurs, eight status bits

are appended to the 16-bit conversion. These status bits contain

a pattern sequence that can be used to confirm the validity of

the serial transfer.

The AD7170 is a 12-bit version of the AD7171. It has the same

feature set as the AD7171 and is pin-for-pin compatible.

Rev. 0

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

12 3 4 5 6 7...16

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AD7171BCPZ-REEL7 替代型号

型号	品牌	替代类型	描述	数据表
AD7171BCPZ-500RL7	ADI	类似代替	16-Bit Low Power Sigma-Delta ADC

与AD7171BCPZ-REEL7相关器件

型号	品牌	获取价格	描述	数据表
AD7172-2	ADI	获取价格	True rail-to-rail analog and reference input buffers
AD7172-2BRUZ	ADI	获取价格	True rail-to-rail analog and reference input buffers
AD7172-2BRUZ-RL	ADI	获取价格	True rail-to-rail analog and reference input buffers
AD7172-2BRUZ-RL7	ADI	获取价格	True rail-to-rail analog and reference input buffers
AD7172-4	ADI	获取价格	ADC with True Rail-to-Rail Buffers
AD7172-4_17	ADI	获取价格	ADC with True Rail-to-Rail Buffers
AD7172-4BCPZ	ADI	获取价格	Low Power, with 4- or 8-channel, 24-bit, 31.
AD7172-4BCPZ-RL	ADI	获取价格	Low Power, with 4- or 8-channel, 24-bit, 31.
AD7172-4BCPZ-RL7	ADI	获取价格	Low Power, with 4- or 8-channel, 24-bit, 31.
AD7173-8	ADI	获取价格	Low Power, 8-/16-Channel, 31.25 kSPS, 24-Bit, Highly Integrated Sigma-Delta ADC

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