ANALOG DEVICES AD5235BRUZ25 Non Volatile Digital Potentiometer, 25 kohm, Dual, 4 Wire, Serial, SPI, Linear / Logarithmic

AD5235 is a dual-channel, non-volatile memory, digitally controlled potentiometer. The device performs the same electronic adjustment function as a mechanical potentiometer with enhanced resolution, solid state reliability, and superior low temperature coefficient performance. The versatile programming of this via an SPI®-compatible serial interface allows 16 modes of operation and adjustment including scratchpad programming, memory storing and restoring, increment/decrement, ±6dB/step log taper adjustment, wiper setting readback, and extra EEMEM1 for user defined information such as memory data for other components, look-up table, or system identification information. Typical applications are DWDM laser diode driver, optical supervisory systems, mechanical potentiometer replacement, instrumentation: gain, offset adjustment, programmable filters, delays, time constants, programmable power supply, low resolution DAC replacement, sensor calibration.

• Dual-channel, 1024-position resolution, SPI-compatible serial interface
• Non-volatile memory stores wiper settings, power-on refreshed with EEMEM settings
• Permanent memory write protection, resistance tolerance stored in EEMEM
• 26bytes extra non-volatile memory for user-defined information
• 1M programming cycles, 100-year typical data retention
• Resistor differential nonlinearity range from -1 to 1LSB (RWB, VDD=2.7V to 5.5V ?40°C <lt/> TA <lt/> +85°C)
• Resistance temperature coefficient is 35ppm/°C typ (VDD=2.7V to 5.5V, VSS=0V ?40°C <lt/> TA <lt/> +85°C)
• Resistor noise density is 20/64nV/?Hz typ (RAB=25Kohm/250Kohm, VDD=2.7V to 5.5V, -40°C <lt/> TA <lt/> +85°C)
• 16-lead TSSOP package
• Temperature rating range from -40°C to +85°C

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party