AD5274BCPZ-100-RL7

AD5274 is a single-channel, 256-position digital rheostat that 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 guaranteed industry leading low resistor tolerance error feature simplifies open-loop applications as well as precision calibration and tolerance matching applications. This device wiper settings are controllable through the I²C-compatible digital interface. Unlimited adjustments are allowed before programming the resistance value into the 50-TP memory. It is used in applications 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.

• Nominal resistance is 100Kohm, resistor integral nonlinearity is 1LSB max
• Maximum ±1% nominal resistor tolerance error
• Rheostat mode temperature coefficient is 5ppm/°C typical at (VDD = 2.7V to 5.5V)
• Single-supply operation range from 2.7V to 5.5V
• Dual-supply operation range from ±2.5V to ±2.75V
• I²C-compatible interface, wiper setting readback, power on refreshed from 50-TP memory
• Bandwidth is 60KHz typical at (VDD = 2.7V to 5.5V)
• Resistor noise density is 32nV/√Hz typical at (VDD = 2.7V to 5.5V)
• Total harmonic distortion is -85dB typical at (VDD = 2.7V to 5.5V)
• Operating temperature is -40°C to +125°C, package style is 10-lead LFCSP

บันทึก

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