ANALOG DEVICES AD5232BRUZ50 Non Volatile Digital Potentiometer, 50 kohm, Dual, SPI, Logarithmic, -40%, +20%, 2.7 V

AD5232BRUZ50 is a non-volatile memory, dual 256-position digital potentiometer. It provides a non-volatile, dual-channel, digitally controlled variable resistor (VR) with 256-position resolution. This 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 the AD5232, performed via a microcontroller, allows multiple modes of operation and adjustment. In the direct program mode, a predetermined setting of the RDAC registers (RDAC1 and RDAC2) can be loaded directly from the microcontroller. It is used in applications such as mechanical potentiometer replacement, instrumentation: gain and offset adjustment, programmable voltage-to-current conversion, programmable filters, delays, and time constants, programmable power supply, low-resolution DAC replacement, and sensor calibration.

• Dual-channel, 256-position resolution, SPI-compatible serial interface
• Non-volatile memory maintenance of wiper settings, wiper settings and EEMEM readback
• Predefined linear increment/decrement instructions, 14 bytes of general-purpose user EEMEM
• Single-supply power range from 2.7V to 5.5V, dual-supply power range from ±2.25V to ±2.75V
• Permanent memory write protection, 100-year typical data retention (TA = 55°C)
• Bandwidth is 500KHz typical at (-3dB, BW-10Kohm, R = 10Kohm)
• Total harmonic distortion is 0.022% typical at (VA = 1V rms, VB = 0V, f = 1KHz, RAB = 10Kohm)
• Resistor noise voltage is 9nV/?Hz typica at (RWB = 5Kohm, f= 1KHz)
• End-to-end RAB is 50Kohm, 2 number of channels
• Operating temperature range from -40°C to +85°C, 16-lead TSSOP package

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