FEATURES FUNCTIONAL BLOCK DIAGRAM 256-position, 4-channel
End-to-end resistance 20 kΩ, 50 kΩ, 200 kΩ
Pin-selectable SPI®-or I2C®-compatible interface
Power-on preset to midscale
Two package address decode pins AD0 and AD1
Rheostat mode temperature coefficient 30 ppm/°C
Voltage divider temperature coefficient 5 ppm/°C
Wide operating temperature range –40°C to +125°C
10 V to 15 V single supply; ±5 V dual supply A1 B1 A2 W2 B2 A3 W3 B3 A4 W4 B4 VSS
SHDN
RES/AD1 RDAC 1
REGISTER RDAC 2
REGISTER GND Mechanical potentiometer replacement
Optical network adjustment
Instrumentation: gain, offset adjustment
Stereo channel audio level control
Automotive electronics adjustment
Programmable power supply
Programmable filters, delays, time constants
Line impedance matching
Low resolution DAC/trimmer replacement
Base station power amp biasing
Sensor calibration RDAC 3 …