Features: `256 position
`10 k, 50 k, 100 k
`+4.5 V to +30 V single-supply operation
`±4.5 V to ±15 V dual-supply operation
`3-wire SPI®-compatible serial interface
`Low temperature coefficient 35 ppm/oC typical
`THD 0.006% typical
`Midscale preset
`Compact MSOP-10 package
`Automotive temperature range: −40 to +125
`iCMOS™ 1process technologyApplication·High voltage DAC
·Programmable power supply
·Programmable gain and offset adjustment
·Programmable filters and delays
·Actuator control
·Audio volume control
·Mechanical potentiometer replacementPinout
Specifications
| # Channels |
1 |
| # Positions |
256 |
| Memory Type |
Volatile |
| Interface |
SPI |
| Resistor Values (kOhms) |
10, 50, 100 |
| Bipolar Voltage Range (V) |
±15V |
| Voltage Range (V) |
+30V |
| Supply Current |
10A |
| Temp. Range -40 °C to.. |
105Deg |
| Absolute Tempco (ppm/°C) |
35ppm/C |
| Package |
MSOP |
VDD to GND........................−0.3 V, +35 V
VSS to GND.....................+0.3 V, −16.5 V
VDD to VSS........................−0.3 V, +35 V
VA, VB, VW to GND....................VSS, VDD
Maximum Current
IWB, IWA Pulsed.....................±20 mA
IWB Continuous (RWB 6 k, A Open,...±5 mA
VDD/VSS = 30 V/0 V)1
IWA Continuous (RWA 6 k, B Open,..±5 mA
VDD/VSS = 30 V/0 V)1
Digital Input and Output Voltages to GND...0 V, +7 V
Operating Temperature Range....−40°C to +125°C
Maximum Junction Temperature (TJMAX)2.....+150°C
Storage Temperature...................−65°C to +150°C
Lead Temperature (Soldering, 10 sec to 30 sec)..245°C
Thermal Resistance2 JA: MSOP-10.............230°C/W
1 The maximum terminal current is bound by the maximum current handling of the switches, maximum power dissipation of the package, and the maximum applied voltage across any two of the following at a given resistance: A terminal, B terminal, and W terminal.
2 Package power dissipation = (T JMAX TA)/JA.
Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only; functional operation of the device at these or any other conditions above those indicated in the operational section of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
DescriptionThe AD5290 is one of the few high voltage, high performance, and compact digital potentiometers2, 3 in the market at present. This device can be used as a programmable resistor or resistor divider. The AD5290 performs the same electronic adjustment function as mechanical potentiometers, variable resistors, and trimmers, with enhanced resolution, solid-state reliability, and superior temperature stability.With digital rather than manual control, the AD5290 provides layout flexibility and allows closed-loop dynamic controllability.
The AD5290 is available in MSOP-10 package and has 10 k, 50 k, and 100 k options. All parts are guaranteed to operate over the 40°C to +125°C extended automotive temperature range.
AD5290 Data Sheet
