AD7705B Dual-Channel 16-bit Sigma-Delta ADC (DIP-16)
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Prices updated: 14 Oct 2026
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About this product
A 16-bit sigma-delta ADC with two fully differential analog input channels and programmable gain from 1 to 128. It supports 3V or 5V operation and a three-wire serial interface, suited to precision measurement such as load cells and bridge sensors.
Specifications
- Resolution
- 16-bit
- Architecture
- Sigma-delta
- Input channels
- 2 fully differential
- Programmable gain
- 1 to 128
- Supply voltage
- 3V or 5V
- Interface
- Three-wire serial
- Package
- 16-pin DIP
Frequently asked questions
How do I connect the AD7705B to a microcontroller?
Use the three-wire serial interface with the chip select, data in, data out and serial clock lines, plus the DRDY line to detect when a new conversion result is ready.
How is the gain set on the AD7705B?
The gain is set by writing to the setup register through the serial interface, choosing a value from 1 to 128 for the selected channel.
