AD7152BRMZ

Semiconductors - ICs

> Data & Signal Conversion

> Analog-to-Digital Converters - ADC

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Series Information for AD7152BRMZ - Analog Devices

Features

  • feature
    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 u00b10.25 pF to u00b12 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 2-wire serial interface (I2C-compatible) Power 2.7 V to 3.6 V single-supply operation 100 u03bcA current consumption Operating temperature: u221240u00b0C to +85u00b0C 10-lead MSOP

Description

ADC 12BIT 200SPS MSOP-10

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.

Specifications

Resolution (Bits):
12bit
Sampling Rate:
200SPS
Input Channel Type:
Differential Single Ended
Data Interface:
I2C
Supply Voltage Type:
Single
Supply Voltage Min:
2.7V
Supply Voltage Max:
3.6V
ADC / DAC Case Style:
MSOP
No. of Pins:
10Pins
Operating Temperature Min:
-40°C
Operating Temperature Max:
85°C
Product Range:
-
Automotive Qualification Standard:
-
RoHS Phthalates Compliant:
Yes
MSL:
MSL 1 - Unlimited
SVHC:
No SVHC (07-Jul-2017)