The AD5280/AD5282 are single-channel and dual-channel, 256-position, digitally controlled variable resistors (VRs)2 . The devices perform the same electronic adjustment function as a potentiometer, trimmer, or variable resistor. Each VR offers a completely programmable value of resistance between the A terminal and the wiper or the B terminal and the wiper. The fixed A-to-B terminal resistance of 20 kΩ, 50 kΩ, or 200 kΩ has a 1% channel-to-channel matching tolerance. The nominal temperature coefficient of both parts is 30 parts per million/ degrees centigrade (ppm/°C). Another key feature is that the parts can operate up to +15 V or ±5 V. Wiper position programming defaults to midscale at system power-on. When powered, the VR wiper position is programmed by an I2C-compatible, 2-wire serial data interface. The AD5280/ AD5282 feature sleep mode programmability. This allows any level of preset in power-up and is an alternative to a costly EEPROM solution. Both parts have additional programmable logic outputs that enable users to drive digital loads, logic gates, LED drivers, and analog switches in their system.
Specifications
End To End Resistance:
50kohm
No. of Pots:
Dual
Control Interface:
I2C Serial
Track Taper:
-
Resistance Tolerance:
± 30%
Supply Voltage Min:
4.5V
Supply Voltage Max:
16.5V
Potentiometer IC Case Style:
TSSOP
No. of Pins:
16Pins
No. of Steps:
256
Temperature Coefficient:
30ppm/°C
Operating Temperature Min:
-40°C
Operating Temperature Max:
85°C
Product Range:
-
Automotive Qualification Standard:
-
RoHS Phthalates Compliant:
Yes
MSL:
-
SVHC:
No SVHC (07-Jul-2017)
Alternate Descriptions
RS Components
Digital Potentiometer 256POS 50KOhm Dual
RS Components UK
Digital Potentiometer 256POS 50KOhm Dual
RS Components DE
Digitales Potenziometer AD5282BRUZ50, Seriell 3-adrig, seriell I2C 50kΩ 256-Position 2-Kanal TSSOP 16-Pin Speicher-Typ : Flüchtig Montage-Typ : SMD Stromversorgungs-Typ : Dual, Single Versorgungsspannung einzeln typ. : 15 V Versorgungsspannung bipolar typ. : ±5V Abmessungen : 5 x 4.4 x 1.05mm Betriebstemperatur max. : +85 °C, Analog Devices
