AD7152BRMZ

更新时间： 2024-11-04 04:04:15

品牌	Logo	应用领域
亚德诺 - ADI		转换器模拟IC 信号电路光电二极管
页数	文件大小	规格书
24页	474K
描述
12-Bit Capacitance-to-Digital Converter

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中文翻译

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AD7152BRMZ 数据手册

12-Bit Capacitance-to-Digital Converter

AD7152/AD7153

GENERAL DESCRIPTION

FEATURES

Capacitance-to-digital converters

Interfaces to floating sensors

The AD7152/AD7153 are 12-bit sigma-delta (Σ-Δ) capacitance-to-

digital converters (CDCs). The capacitance to be measured

Resolution down to 0.25 fF (that is, up to 12 ENOB)

Linearity: 0.05%

is connected directly to the device inputs. The architecture

features inherent high resolution (12-bit no missing codes,

up to 12-bit effective resolution) and high linearity (±±.±5ꢀ).

The AD7152/AD7153 have four capacitance input ranges per

operation mode, ±±.25 pꢁ to ±2 pꢁ in differential mode and

±.5 pꢁ to 4 pꢁ in single-ended mode.

Common-mode (not changing) capacitance up to 5 pF

Four capacitance ranges selectable per operation mode

0.25 pF to 2 pF in differential mode

0.5 pF to 4 pF in single-ended mode

Tolerant of parasitic capacitance to ground up to 50 pF

Conversion time per channel: 5 ms, 20 ms, 50 ms, and 60 ms

Internal clock oscillator

The AD7152/AD7153 can accept up to 5 pꢁ common-mode

capacitance (not changing), which can be balanced by a

programmable on-chip, digital-to-capacitance converter

(CAPDAC).

2-wire serial interface (I²C-compatible)

Power

The AD7153 has one capacitance input channel, while the

AD7152 has two channels. Each channel can be configured

as single-ended or differential. The AD7152/AD7153 are

designed for floating capacitive sensors.

2.7 V to 3.6 V single-supply operation

100 μA current consumption

Operating temperature: −40°C to +85°C

10-lead MSOP package

The AD7152/AD7153 have a 2-wire, I²C®-compatible serial

interface. Both parts can operate with a single power supply

from 2.7 V to 3.6 V. They are specified over the temperature

range of −4±°C to +85°C and are available in a 1±-lead MSOP

package.

APPLICATIONS

Automotive, industrial, and medical systems for

Pressure measurement

Position sensing

Level sensing

Flowmeters

Humidity sensing

FUNCTIONAL BLOCK DIAGRAMS

VDD

AD7152

AD7153

CAP+

CAP–

CAP+

CLOCK

VOLTAGE

CLOCK

VOLTAGE

CAP–

GENERATOR REFERENCE

CIN1(+)

CIN1(–)

EXC1

CIN1(+)

CIN1(–)

EXC1

SDA

SCL

SDA

SCL

I C

SERIAL

INTERFACE

I C

12-BIT Σ-Δ

MODULATOR

12-BIT Σ-Δ

MODULATOR

MUX

SERIAL

INTERFACE

CIN2(+)

CIN2(–)

EXC2

DIGITAL

FILTER

CONTROL LOGIC

CALIBRATION

DIGITAL

FILTER

CONTROL LOGIC

CALIBRATION

EXCITATION

GND

Figure 1.

Figure 2.

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

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中文翻译

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与AD7152BRMZ相关器件

型号	品牌	获取价格	描述	数据表
AD7152BRMZ-REEL	ADI	获取价格	12-Bit Capacitance-to-Digital Converter
AD7153	ADI	获取价格	12-Bit Capacitance-to-Digital Converter
AD7153BRMZ	ADI	获取价格	12-Bit Capacitance-to-Digital Converter
AD7153BRMZ-REEL	ADI	获取价格	12-Bit Capacitance-to-Digital Converter
AD7156	ADI	获取价格	Ultralow Power, 1.8 V, 3 mm × 3 mm, 2-Channel
AD7156BCPZ-REEL	ADI	获取价格	Ultralow Power, 1.8 V, 3 mm × 3 mm, 2-Channel
AD7156BCPZ-REEL	ROCHESTER	获取价格	SPECIALTY ANALOG CIRCUIT, PDSO10, 3 X 3 MM, ROHS COMPLIANT, LFCSP-10
AD7156BCPZ-REEL7	ADI	获取价格	Ultralow Power, 1.8 V, 3 mm × 3 mm, 2-Channel
AD7170	ADI	获取价格	12-Bit Low Power Sigma-Delta ADC
AD7170BCPZ-500RL7	ADI	获取价格	12-Bit Low Power Sigma-Delta ADC

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