AD5235BRUZ250-R7

AD5235 is a dual-channel, non-volatile memory, digitally controlled potentiometer with 1024-step resolution, offering guaranteed maximum low resistor tolerance error of ±8%. 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 AD5235 via a SPI®-compatible serial interface allows 16 modes of operation and adjustment including scratchpad programming, memory storing and restoring, increment/decrement, ±6 dB/step log taper adjustment, wiper setting readback, and extra EEMEM1 for user defined information. Application includes DWDM laser diode driver, optical supervisory systems, mechanical potentiometer replacement, instrumentation: gain, offset adjustment, programmable voltage-to-current conversion, programmable filters, delays, time constants, programmable power supply, low resolution DAC replacement, sensor calibration.

• Nominal resistor tolerance range from -8 to +8% (VDD = 2.7V to 5.5V, -40 <lt/> TA<lt/> +85C)
• 35ppm/°C typical resistance temperature coefficient (VDD = 2.7V to 5.5V, -40 <lt/> TA<lt/> +85C)
• 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
• 100years typical data retention (VDD = 2.7V and VDD = 5V)
• Single supply power range from 2.7V to 5.5V (VSS = 0V, -40°C <lt/> TA <lt/> +85°C)
• Dual supply power range from ±2.25V to ±2.75V (-40°C <lt/> TA <lt/> +85°C)
• 16 lead TSSOP package, operating temperature range from -40°C to +85°C

บันทึก

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