The linear gain setting mode allows independent programming of the resistance between the digital potentiometer terminals, RAW and RWB, allowing very accurate resistor matching. The high bandwidth and low total harmonic distortion (THD) ensure an optimal performance for ac signals, making it suitable for filter design. The low wiper resistance at the ends of the resistor array of only 40 Ω, allowing pin-to-pin connection. The wiper values can be set through an SPI-/I2C-compatible digital interface that is also used to readback the wiper register and EEMEM content. The AD5124/AD5144/AD5144A are available in a compact 24-lead, 4 mm × 4 mm LFCSP and a 20-lead TSSOP. The parts 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, time constants Programmable power supplies
The AD5124/AD5144/AD5144A 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 Ax, Bx, and Wx 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, RAW and RWB, allowing very accurate resistor matching.
The high bandwidth and low total harmonic distortion (THD) ensure an optimal performance for ac signals, making it suitable for filter design.
The low wiper resistance at the ends of the resistor array of only 40 Ω, allowing pin-to-pin connection.
The wiper values can be set through an SPI-/I2C-compatible digital interface that is also used to readback the wiper register and EEMEM content.
The AD5124/AD5144/AD5144A are available in a compact 24-lead, 4 mm × 4 mm LFCSP and a 20-lead TSSOP. The parts are guaranteed to operate over the extended industrial temperature range of −40°C to +125°C.
Features and Benefits
| Digital to Analog ConvertersIBIS ModelsSPICE Models |
| Document | note |
| AD5124/AD5144/AD5144A: Quad Channel, 128-/256-Position, I2C/SPI, Nonvolatile Digital Potentiometer Data Sheet (Rev. A) | PDF 722 kB |
| Document | note |
| AN-1291: Digital Potentiometers: Frequently Asked Questions (Rev. A) | PDF 805 kB |
| AN-1169: Linear Gain Setting Mode: A Detailed Description (Rev. A) | PDF 214 kB |
| Document | note |
| UG-469: Evaluating the AD5144 Digital Potentiometer | PDF 704 kB |
| Part Number | Package | Packing Qty | Temp Range | Price 100-499 | Price 1000+ | RoHS |
|---|---|---|---|---|---|---|
| AD5144BCPZ10-RL7 Production | 24 ld LFCSP (4x4x.75mm w/2.10mm EP) | REEL 1500 | -40 to 125C | 0 | 2.9 | Y |
| AD5144BCPZ100-RL7 Production | 24 ld LFCSP (4x4x.75mm w/2.10mm EP) | REEL 1500 | -40 to 125C | 0 | 2.9 | Y |
| AD5144BRUZ10 Production | 20 ld TSSOP | OTH 75 | -40 to 125C | 3.21 | 2.9 | Y |
| AD5144BRUZ10-RL7 Production | 20 ld TSSOP | REEL 1000 | -40 to 125C | 0 | 2.9 | Y |
| AD5144BRUZ100 Production | 20 ld TSSOP | OTH 75 | -40 to 125C | 3.21 | 2.9 | Y |
| AD5144BRUZ100-RL7 Production | 20 ld TSSOP | REEL 1000 | -40 to 125C | 0 | 2.9 | Y |
| Part Number | Description | Price | RoHS |
|---|---|---|---|
| EVAL-AD5144DBZ | Evaluation Board | 59 | Y |
| EVAL-SDP-CS1Z | Evaluation Controller Board | 49 | Y |
