AD5142BCPZ10-RL7

AD5142BCPZ10-RL7 is a dual channel, 256-position, SPI, non-volatile digital potentiometer. The low resistor tolerance and low nominal temperature coefficient simplify open-loop applications as well as applications requiring tolerance matching. The linear gain setting mode allows independent programming of the resistance between the digital potentiometer terminals through the RAW and RWB string resistors, allowing accurate resistor matching. The high bandwidth and low total harmonic distortion (THD) ensure optimal performance for AC signals, making this device suitable for filter design. The wiper values can be set through an SPI-compatible digital interface that also reads back the wiper register and EEPROM contents. It is used in applications such as portable electronics level adjustment, LCD panel brightness and contrast controls, programmable filters, delays, and time constants, and programmable power supplies.

• RAB is 10Kohm, linear gain setting mode, logic supply voltage range from 1.8V to 5.5V
• Resistor integral nonlinearity is ±0.2LSB typ at (VDD ≥ 2.7V, VDD = 2.3V to 5.5V, VSS = 0V)
• Resistor differential nonlinearity is ±0.2LSB typ at (VDD = 2.3V to 5.5V)
• Resistance temperature coefficient is 35ppm/°C typ at (VDD = 2.3V to 5.5V, VSS = 0V)
• Bandwidth is 3MHz typ at (RAB = 10Kohm, VDD = 2.3V to 5.5V, VSS = 0V; VDD = 2.25V to 2.75V)
• Resistor noise density is 7nV/√Hz typ at (VDD = 2.3V to 5.5V, VSS = 0V; VDD = 2.25V to 2.75V)
• VW settling time is 2µs typical at (RAB = 10Kohm, VDD = 2.3V to 5.5V, VSS = 0V)
• Power dissipation is 3.5µW typical at (VIH = VLOGIC or VIL = GND)
• Total harmonic distortion is -80dB typ at (RAB = 10Kohm, VDD = 2.3V to 5.5V, VSS = 0V)
• Operating temperature range from -40°C to +125°C, 16-lead LFCSP-WQ package

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