Single Channel, 1024-Position, 1% R-Tol, Digital
Preliminary Technical Data
Single-channel, 1024-position resolution
20 kΩ, 50 kΩ and 100 kΩ nominal resistance
Calibrated 1% Nominal Resistor Tolerance
Rheostat mode temperature coefficient: 35 ppm/°C
Voltage divider temperature coefficient: 5 ppm/°C
+21V to +30V single-supply operation
±10.5V to ±15V dual-supply operation
SPI® compatible serial interface
Wiper setting readback
Mechanical potentiometer replacement
Instrumentation: gain, offset adjustment
Programmable voltage to current conversion
Programmable filters, delays, time constants
Programmable power supply
Low resolution DAC replacement
The AD5293 is a single-channel, 1,024-position digital
potentiometer1 with less than 1% end-to-end Resistor Tolerance
error. The AD5293 performs the same electronic adjustment
function as a mechanical potentiometer with enhanced
resolution, solid state reliability, and superior low temperature
coefficient performance. This device is capable of operating at
high-voltages; supporting both dual supply ±10.5 to ±15V and
single supply operation +21V to +30V.
The AD5293 offers guaranteed industry leading low resistor
tolerance errors of ±1% with a nominal temperature coefficient
of 35 ppm/ºC. The low resistor tolerance feature simplifies
open-loop applications as well as precision calibration and
tolerance matching applications.
FUNCTIONAL BLOCK DIAGRAM
Figure 1. 14ld TSSOP
The AD5293 is available in a compact 14ld TSSOP package. The
part is guaranteed to operate over the extended industrial
temperature range of −40°C to +105°C.
1 The terms digital potentiometer and RDAC are used interchangeably.
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infringements of patents or other rights of third parties that may result from its use.
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