Key facts
- Brand
- Analog Devices
- Model
- AD7747
- Industry
- Industrial
- Documents
- 3
- Languages
- ZH · EN
- Last added
- 2022-09-13
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AD7747 24-Bit Capacitive Digital Converter Datasheet
The AD7747 is a high-resolution, sigma-delta capacitive digital converter (CDC) designed for interfacing with single-ended or differential grounded capacitive sensors. It features 24-bit resolution, high linearity, and high accuracy, with a full-scale input range of ±8.192 pF. The device includes an internal temperature sensor, voltage reference, and clock generator, requiring no external components for basic operation. This manual is written in Chinese.
Read onlineAnalog Devices AD7747 specifications
| Effective Resolution | 19.1 Bit |
|---|---|
| Input Range | ±8.192 pF |
| Linearity | ±0.01 % of FSR |
| Supply Voltage | 2.7 V to 5.25 V |
| Operating Temperature | -40°C to +125°C |
| Package | 16-lead TSSOP |
Source: AD7747 24-Bit Capacitive Digital Converter Datasheet
All Analog Devices AD7747 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What type of interface does the AD7747 use?
It uses a two-wire I2C compatible serial interface.
Is the AD7747 suitable for floating capacitive sensors?
No, it is designed for grounded sensors; floating sensors require the AD7745 or AD7746.
What is the effective resolution of the AD7747?
The AD7747 provides an effective resolution of up to 19.1 bits.
From: Analog Devices AD7747 24‑Bit Capacitance‑to‑Digital Converter Datasheet
What supply voltage range does the AD7747 support?
It operates from a single supply of 2.7 V to 5.25 V.
From: Analog Devices AD7747 24‑Bit Capacitance‑to‑Digital Converter Datasheet
What supply voltage range does the AD7747 support?
The AD7747 can be powered from 2.7 V to 3.6 V or from 4.75 V to 5.25 V.
What is the effective resolution of the AD7747?
The device provides an effective resolution of about 19.1 bits.