AD7152 - ADI

The pictures are for reference only, and the specific specifications can be found in the product manual.

Part No

AD7152
Manufacturer

ADI
ChipWorker Part#

CW389486819
RoHS

Lead free / RoHS Compliant
Description

12Bit Capacitance-to-Digital Converter
Documentation

Datasheet

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AD7152 Specifications

Attribute	Attribute Value

Part Number	AD7152
Manufacturer	ADI
ChipWorker Part#	CW389486819
Documentation	Datasheet
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Product Lifecycle Status	Active
RoHS	RoHS Compliant

Product Description

Product Details
The AD7152/AD7153 are 12-bit sigma-delta (Σ-Δ) capacitance-to-digital converters (CDCs). The capacitance to be measured 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 (±0.05%). The AD7152/ AD7153 have four capacitance input ranges per operation mode, ±0.25 pF to ±2 pF in differential mode and 0.5 pF to 4 pF in single-ended mode.
The AD7152/AD7153 can accept up to 5 pF common-mode capacitance (not changing), which can be balanced by a programmable on-chip, digital-to-capacitance converter (CAPDAC).
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.
The AD7152/AD7153 have a 2-wire, I2C-compatible serial interface. Both devices can operate with a single power supply from 2.7 V to 3.6 V. They are specified over the temperature range of −40°C to +85°C and are available in a 10-lead MSOP.
Applications
Automotive, industrial, and medical systems for
Pressure measurement
Position sensing
Level sensing
Flowmeters
Humidity sensing
### Features and Benefits
Capacitance-to-digital converters
Interfaces to floating sensors
Resolution down to 0.25 fF (that is, up to 12 ENOB)
Linearity: 0.05%
Common-mode (not changing) capacitance up to 5 pF
Four capacitance ranges selectable per operation 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
2-wire serial interface
(I2C-compatible)
Power
2.7 V to 3.6 V single-supply operation
100 μA current consumption
Operating temperature: −40°C to +85°C
10-lead MSOP
See data sheet for additional features

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