The 256-position, one-time programmable dual-channel I2C digital potentiometers AD5172/AD5173 provide a low-cost alternative for setting and fixing resistance. It allows unlimited adjustments prior to OTP activation and dynamic adjustments with user-defined presets through OTP overwrite. The potentiometers feature end-to-end resistance options of 2.5 kΩ, 10 kΩ, 50 kΩ, and 100 kΩ, fast settling time, single supply voltage range of 2.7 V to 5.5 V, and other characteristics.
The Analog Devices AD5172/AD5173 are dual-channel, 256-position, one-time programmable (OTP) digital potentiometers that employ fuse link technology. These devices offer a cost-effective alternative to EEPROM-based memory for users who do not need to program the resistance setting more than once.
The components feature end-to-end resistances of 2.5 kΩ, 10 kΩ, 50 kΩ, and 100 kΩ in compact MSOP-10 packages. They operate with a single supply voltage ranging from 2.7 V to 5.5 V and include a unique temporary OTP overwrite feature that allows for new adjustments even after the fuse has been blown.
| Number of Channels | 2-channel |
|---|---|
| Resistance Values | 2.5 kΩ, 10 kΩ, 50 kΩ, 100 kΩ |
| Package Type | MSOP-10 (3 mm x 4.9 mm) |
| Supply Voltage Range | 2.7 V to 5.5 V |
| Operating Temperature | -40°C to +125°C |
| Resistance Temperature Coefficient | 35 ppm/°C |
They are dual-channel, one-time programmable digital potentiometers that provide a low-cost alternative to EEPROM memory for resistance settings.
Yes, a unique temporary OTP overwrite feature allows for new adjustments even after a fuse has been blown, though the setting is restored during subsequent power-ups.
The devices are programmed using a 2-wire, PC-compatible digital interface.