Capacitance-to-Digital Converter 24 B Serial 16-Tssop

Product Details
Conductive Type: Unipolar Integrated Circuit
Integration: GSI
Technics: Semiconductor IC
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Management System Certification
ISO 9001
  • Capacitance-to-Digital Converter 24 B Serial 16-Tssop
  • Capacitance-to-Digital Converter 24 B Serial 16-Tssop
  • Capacitance-to-Digital Converter 24 B Serial 16-Tssop
  • Capacitance-to-Digital Converter 24 B Serial 16-Tssop
  • Capacitance-to-Digital Converter 24 B Serial 16-Tssop
  • Capacitance-to-Digital Converter 24 B Serial 16-Tssop
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Basic Info.

Model NO.
AD7746ARUZ
shape
Surface Mount
Transport Package
Carton
Specification
10*10*10cm
Trademark
FT
Origin
China
HS Code
85416000
Production Capacity
100000

Product Description

Description

The AD7745/AD7746 are a high resolution, Σ-Δ capacitance-todigital converter (CDC). The capacitance to be measured is connected directly to the device inputs. The architecture features inherent high resolution (24-bit no missing codes, up to 21-bit effective resolution), high linearity (±0.01%), and high accuracy (±4 fF factory calibrated). The AD7745/AD7746 capacitance input range is ±4 pF (changing), while it can accept up to 17 pF common-mode capacitance (not changing), which can be balanced by a programmable on-chip, digital-tocapacitance converter (CAPDAC).

The AD7745 has one capacitance input channel, while the AD7746 has two channels. Each channel can be configured as single-ended or differential. The AD7745/AD7746 are designed for floating capacitive sensors. For capacitive sensors with one plate connected to ground, the AD7747 is recommended. The parts have an on-chip temperature sensor with a resolution of 0.1°C and accuracy of ±2°C. The on-chip voltage reference and the on-chip clock generator eliminate the need for any external components in capacitive sensor applications. The parts have a standard voltage input, which together with the differential reference input allows easy interface to an external temperature sensor, such as an RTD, thermistor, or diode.

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Capacitance-to-Digital Converter 24 B Serial 16-Tssop

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