General Description
The AS1500 is a digital potentiometer with 256 programmable steps. The values of the resistor can be controlled via 3 wire serial interface capable to handle programming rates up to 10MHz. The AS1500 is available in four different resistor values. The AS1500 incorporates a 10kΩ, the AS1501 a 20kΩ, the AS1502 a 50kΩ and the AS1503 a 100kΩfixed resistor.

KEY FEATUREs
-  256-Position
-  Available in four Resistance values
    - AS1500 resistance 10kOhms
    - AS1501 resistance 20kOhms
    - AS1502 resistance 50kOhms
    - AS1503 resistance 100kOhms
-  Power Shutdown —Less than 1 µA
-  3-Wire SPI-Compatible Serial Data Input
-  10 MHz Update Data Loading Rate
-  2.7 V to 5.5 V Single-Supply Operation
-  Temperature Range –40°C to +125°C
-  Package SO-8
-  Compatible to AD8400

APPLICATIONs
-  Line Impedance Matching
-  Volume Control, Panning
-  Mechanical Potentiometer Replacement
-  Power Supply Adjustment
-  Programmable Filters, Delays, Time Constants