AD5124 Quad Channel, 128-Position, SPI, Nonvolatile Digital Potentiometer

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.

Applications
  • Portable electronics level adjustment
  • LCD panel brightness and contrast controls
  • Programmable filters, delays, time constants
  • Programmable power supplies
Features and Benefits
  • 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 < 100 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
  • 4 mm × 4 mm package option
  • 4 kV ESD protection
Digital to Analog Converters
IBIS Models
Data Sheets
Documentnote
AD5124/AD5144/AD5144A: Quad Channel, 128-/256-Position, I2C/SPI, Nonvolatile Digital Potentiometer Data Sheet (Rev. A)PDF 722 kB
Application Notes
Documentnote
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
Order Information
Part NumberPackagePacking QtyTemp RangePrice 100-499Price 1000+RoHS
AD5124BCPZ10-RL7 Production24 ld LFCSP (4x4x.75mm w/2.10mm EP) REEL 1500-40 to 125C02.5Y
AD5124BCPZ100-RL7 Production24 ld LFCSP (4x4x.75mm w/2.10mm EP) REEL 1500-40 to 125C02.5Y
AD5124BRUZ10 Production20 ld TSSOPOTH 75-40 to 125C2.772.5Y
AD5124BRUZ10-RL7 Production20 ld TSSOPREEL 1000-40 to 125C00Y
AD5124BRUZ100 Production20 ld TSSOPOTH 75-40 to 125C2.772.5Y
AD5124BRUZ100-RL7 Production20 ld TSSOPREEL 1000-40 to 125C00Y
Evaluation Boards
Part NumberDescriptionPriceRoHS
EVAL-AD5144DBZEvaluation Board59Y
EVAL-SDP-CS1ZEvaluation Controller Board49Y
AD5124/AD5144/AD5144A: 四通道、128/256位、I2C/SPI、非易失性数字电位计 (Rev. A) ad5124
AD5124/AD5144/AD5144A: Quad Channel, 128-/256-Position, I2C/SPI, Nonvolatile Digital Potentiometer Data Sheet (Rev. A) ad5124
AD5144/AD5144A/AD5124 IBIS Model ad5124
AN-1291：数字电位计：常见问题解答 (Rev. A) ad8402
AN-1291: Digital Potentiometers: Frequently Asked Questions (Rev. A) ad8402
AN-1169: 线性增益设置模式：详细说明 (Rev. A) ad5121
AN-1169: Linear Gain Setting Mode: A Detailed Description (Rev. A) ad5121
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