AD5142BRUZ10-RL7

AD5142BRUZ10-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 low wiper resistance of only 40 ohm at the ends of the resistor array allows a pin-to-pin connection. 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.

• 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, VSS = 0V)
• Nominal resistor tolerance is +8% maximum at (VDD = 2.3V to 5.5V, VSS = 0V)
• Resistance temperature coefficient is 35ppm/°C typical at (VDD = 2.3V to 5.5V, VSS = 0V)
• Linear gain setting mode, single- and dual-supply operation, SPI interface
• Bandwidth is 3MHz typ at (-3dB, VDD = 2.3V to 5.5V, VSS = 0V), RAB is 10Kohm
• Resistor noise density is 7nV/√Hz typ at (RAB = 10Kohm, VDD = 2.3V to 5.5V, VSS = 0V)
• VW settling time is 2µs typ at (RAB = 10Kohm, VDD = 2.3V to 5.5V, VSS = 0V)
• Power supply rejection ratio is -66dB typ at (∆VDD/∆VSS = VDD ±10%, code = full scale)
• Operating temperature range from -40°C to +125°C, 16-lead TSSOP package

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