Analog Devices AD5207
The AD5207 provides dual channel, 256-position, digitally controlled variable resistor (VR) devices that perform the same electronic adjustment function as a potentiometer or variable resistor. Each channel of the AD5207 contains a fixed resistor with a wiper contact that taps the fixed resistor value at a point determined by a digital code loaded into the SPI-compatible serial-input register. The resistance between the wiper and either end point of the fixed resistor varies linearly with respect to the digital code transferred into the VR latch.| Part No. | AD5207 |
|---|---|
| Datasheet | AD5207 Download |
| Manufacturer |  Analog Devices |
| Description | 2-Channel/ 256-Position Digital Potentiometer |
| Buy | Stock & Price |
FEATURES
256-Position, 2-Channel Potentiometer Replacement 10 k⍀, 50 k⍀, 100 k⍀ Power Shut-Down, Less than 5●A 2.7 V to 5.5 V Single Supply ؎2.7 V Dual Supply 3-Wire SPI-Compatible Serial Data Input Midscale Preset During Power-On
APPLICATIONS
Mechanical Potentiometer Replacement Stereo Channel Audio Level Control Instrumentation: Gain, Offset Adjustment Programmable Voltage-to-Current Conversion Programmable Filters, Delays, Time Constants Line Impedance Matching Automotive Electronics Adjustment 2-Channel, 256-Position Digital Potentiometer AD5207 FUNCTIONAL BLOCK DIAGRAM A1 W1 B1 A2 W2 B2 SHDN VDD VSS CS CLK SDI DGND RDAC1 REGISTER R RDAC2 REGISTER R LOGIC AD5207 POWERON RESET 8 SERIAL INPUT REGISTER SDOGENERAL DESCRIPTION
The variable resistor 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 10 kΩ, 50 kΩ or 100 kΩ has a ± 1% channel-to-channel matching tolerance with a nominal temperature coefficient of 500 ppm/°C.
