AD5270 is a single-channel, digital rheostat. It combine industry leading variable resistor performance with non-volatile memory (NVM) in a compact package. It ensures less than 1% end-to-end resistor tolerance error and offer 50-times programmable (50-TP) memory. The wiper settings are controllable through the SPI digital interface. Unlimited adjustments are allowed before programming the resistance value into the 50-TP memory. It doesn't require any external voltage supply to facilitate fuse blow and there are 50 opportunities for permanent programming. During 50-TP activation, a permanent blow fuse command freezes the resistance position (analogous to placing epoxy on a mechanical trimmer). It is widely used in application such as mechanical rheostat replacements, op-amp: variable gain control, instrumentation: gain, offset adjustment, programmable voltage to current conversions, programmable filters, delays, time constants, programmable power supply, sensor calibration etc.
- Nominal resistance is 100Kohm
- Resolution is 1,024bits
- Rheostat mode temperature coefficient is 5ppm/°C
- SPI-compatible interface, resistor noise density is 13nV/�Hz at RAW = 20Kohm
- Wiper setting readback, total harmonic distortion is -90dB at RAW = 20Kohm
- Single-supply operation is 2.7V to 5.5V
- Dual-supply operation for ac or bipolar operation is ±2.5V to ±2.75V
- Bandwidth is 300kHz typ at RAW = 20Kohm
- Operating temperature range is -40°C to +125°C
- Packaging style is 10-lead MSOP
Other details
| Brand |
ANALOG DEVICES |
| Part Number |
AD5270BRMZ-100-RL7 |
| Quantity |
Each (Supplied on Cut Tape) |
| Technical Data Sheet EN |
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