Welcome! Please Log In
passwords are case sensitive
Forgot password?
Need an account?
Log In
EVAL-AD7747EBZ Analog Devices, Inc. (ADI)
Linear ICs - Evaluation Board
MFG Part Number: EVAL-AD7747EBZ
The AD7747 is a high-resolution, S-? capacitance-to-digital 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 19.5-bit effective resolution), high linearity (±0.01%), and high accuracy (±10 fF factory calibrated). The AD7747 capacitance input range is ±8 pF (changing), and it can accept up to 17 pF common-mode capacitance (not changing), which can be balanced by a programmable on-chip digital-to-capacitance converter (CAPDAC). The AD7747 is designed for single-ended or differential capacitive sensors with one plate connected to ground. For floating (not grounded) capacitive sensors, the AD7745 or AD7746 are recommended. The part has 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 part has a standard voltage input that, together with the differential reference input, allows easy interface to an external temperature sensor, such as an RTD, thermistor, or diode. The AD7747 has a 2-wire, I2C-compatible serial interface. The part can operate with a single power supply of 2.7 V to 5.25 V. It is specified over the automotive temperature range of -40°C to +125°C and is housed in a 16-lead TSSOP package.
Other AttributesValue
Number of Channels1
Package TypeSOP
Resolution24 Bits
Request Quote for Lead Time
QuantityUnit Price

This product is available in the following countries:
  • Global (except Israel and Russia)

  • Analog Devices offers the broadest portfolio of RF ICs covering the entire RF signal chain, from...

  • Supplier Storefront