AD5121
PRODUCTIONSingle Channel, 128-Position, I2C / SPI, Nonvolatile Digital Potentiometer
- Part Models
- 2
- 1ku List Price
- Starting From $0.82
Part Details
- 10 kΩ and 100 kΩ resistance options
- Resistor tolerance: 8% maximum
- Wiper current: ±6 mA
- Low temperature coefficient: 35 ppm/°C
- Wide bandwidth: 3 MHz
- Fast start-up time < 75 μs
- Linear gain setting mode
- Single- and dual-supply operation
- Independent logic supply: 1.8 V to 5.5 V
- Wide operating temperature: −40°C to +125°C
- 3 mm × 3 mm LFCSP
- Qualified for automotive applications
The AD5121/AD5141 potentiometers provide a nonvolatile solution for 128-/256-position adjustment applications, offering guaranteed low resistor tolerance errors of ±8% and up to ±6 mA current density in the A, B, and W pins.
The low resistor tolerance and low nominal temperature coefficient simplify open-loop applications as well as applications requiring tolerance matching.
The linear gain setting mode allows independent programming of the resistance between the digital potentiometer terminals, through RAW and RWB string resistors, allowing very accurate resistor matching.
The high bandwidth and low total harmonic distortion (THD) ensure optimal performance for ac signals, making it suitable for filter design.
The low wiper resistance of only 40 Ω at the ends of the resistor array allows for pin-to-pin connection.
The wiper values can be set through an SPI-/I2C-compatible digital interface that is also used to read back the wiper register and EEPROM contents.
The AD5121/AD5141 is available in a compact, 16-lead, 3 mm × 3 mm LFCSP. The devices are guaranteed to operate over the extended industrial temperature range of −40°C to +125°C.
Applications
- Portable electronics level adjustment
- LCD panel brightness and contrast controls
- Programmable filters, delays, and time constants
- Programmable power supplies
Documentation
Data Sheet 1
Video 1
Webcast 1
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| AD5121BCPZ10-RL7 | 16-Lead LFCSP (3mm x 3mm w/ EP) | ||
| AD5121BCPZ100-RL7 | 16-Lead LFCSP (3mm x 3mm w/ EP) |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Aug 21, 2024 - 24_0167 AD5121/AD5141 Test Program Change |
||
| AD5121BCPZ10-RL7 | PRODUCTION | |
| AD5121BCPZ100-RL7 | PRODUCTION | |
|
Mar 27, 2016 - 16_0048 Change to Ilogic Maximum and Typical Specifications in the AD5121/AD5141 Datasheet |
||
| AD5121BCPZ10-RL7 | PRODUCTION | |
| AD5121BCPZ100-RL7 | PRODUCTION | |
|
Aug 6, 2014 - 13_0223 Assembly and Test Transfer of Select 2x3mm and 3x3mm LFCSP Products to STATS ChipPAC China |
||
| AD5121BCPZ10-RL7 | PRODUCTION | |
| AD5121BCPZ100-RL7 | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Tools & Simulations
IBIS Model 1
Evaluation Kits
AD5141 Evaluation Board