AD5162 256-Position Dual Channel SPI Digital Potentiometer
The AD5162 provides a compact 3 mm x 4.9 mm packaged solution for dual 256 position adjustment applications. This device performs the same electronic adjustment function as a 3-terminal mechanical potentiometer.
Available in four different end-to-end resistance values (2.5 kΩ, 10 kΩ, 50 kΩ, 100 kΩ), this low temperature coefficient device is ideal for high accuracy and stability-variable resistance adjustments.
The wiper settings are controllable through the SPI compatible digital interface. The resistance between the wiper and either end point of the fixed resistor varies linearly with respect to the digital code transferred into the RDAC latch1.
Operating from a 2.7 V to 5.5 V power supply and consuming less than 6 µA allows the AD5162 to be used in portable battery-operated applications.
For applications that program the AD5162 at the factory, Analog Devices offers device programming software running on Windows® NT/2000/XP operating systems. This software effectively replaces the need for external SPI controllers, which in turn enhances the time to market of systems. An AD5162 evaluation kit and software are available. The kit includes a cable and instruction manual.
1 The terms digital potentiometer, VT, and RDAC are used interchangeably.
Applications
- Systems calibrations
- Electronics level settings
- Mechanical trimmers replacement in new designs
- Permanent factory PCB setting
- Transducer adjustment of pressure, temperature, position, chemical, and optical sensors
- RF amplifier biasing
- Automotive electronics adjustment
- Gain control and offset adjustment
Features and Benefits- 2-Channel, 256-position potentiometer
- End-to-End Resistance
- 2.5kΩ, 10kΩ, 50kΩ, 100kΩ
- Compact 10-lead MSOP (3 mm x 4.9 mm) package
- Fast settling time: ts = 5 μs typical on power-up
- Full read/write of wiper register
- Power-On preset to midscale
- Single Supply: 2.7 V to 5.5 V
- Low Temperature
- Coefficient 35 ppm/°C
- Low power, IDD = 6 µA maximum
- Wide operating temperature:
–40°C to +125°C - Evaluation board available
- Qualified for automotive applications
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Data Sheets
Application Notes
User Guides
Frequently Asked Questions
Order Information
| Part Number | Package | Packing Qty | Temp Range | Price 100-499 | Price 1000+ | RoHS |
|---|
| AD5162BRM100 Last Time Buy | 10 ld MSOP | OTH 50 | -40 to 125C | 0 | 0 | N |
| AD5162BRM100-RL7 Last Time Buy | 10 ld MSOP | REEL 1000 | -40 to 125C | 0 | 0 | N |
| AD5162BRMZ10 Production | 10 ld MSOP | OTH 50 | -40 to 125C | 1.11 | 1 | Y |
| AD5162BRMZ10-RL7 Production | 10 ld MSOP | REEL 1000 | -40 to 125C | 0 | 1 | Y |
| AD5162BRMZ100 Production | 10 ld MSOP | OTH 50 | -40 to 125C | 1.11 | 1 | Y |
| AD5162BRMZ100-RL7 Production | 10 ld MSOP | REEL 1000 | -40 to 125C | 0 | 1 | Y |
| AD5162BRMZ2.5 Production | 10 ld MSOP | OTH 50 | -40 to 125C | 1.11 | 1 | Y |
| AD5162BRMZ2.5-RL7 Production | 10 ld MSOP | REEL 1000 | -40 to 125C | 0 | 1 | Y |
| AD5162BRMZ50 Production | 10 ld MSOP | OTH 50 | -40 to 125C | 1.11 | 1 | Y |
| AD5162BRMZ50-RL7 Production | 10 ld MSOP | REEL 1000 | -40 to 125C | 0 | 1 | Y |
| AD5162WBRMZ100-RL7 Production | 10 ld MSOP | REEL 1000 | -40 to 125C | 0 | 1.07 | Y |
Evaluation Boards
| Part Number | Description | Price | RoHS |
|---|
| EVAL-AD5162SDZ | Evaluation Board | 59 | Y |
| EVAL-SDP-CB1Z | Evaluation Controller Boa | 99 | Y |
Reference Materials
