AD5232:  Nonvolatile, Dual, 256-Position Digital Potentiometer

This device performs the same electronic adjustment function as a potentiometer or variable resistor while offering solid-state reliability and electronic packaging compactness. Available in 10K, ...More

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AD5232:  Nonvolatile, Dual, 256-Position Digital Potentiometer

Product Description

This device performs the same electronic adjustment function as a potentiometer or variable resistor while offering solid-state reliability and electronic packaging compactness. Available in 10K, 50K and 100K ohm end-to-end resistance options allows simplified adjustment in both rheostat and potentiometer divider mode applications. The AD5232's versatile programming allows multiple modes of operation and adjustment, which include direct program setting, EEMEM saving and retrieving, increment/decrement control, right/left shift for 6 dB changes, and wiper setting readback. Users can also daisy chain multiple packages which saves additional Micro controller pins. In addition, fourteen extra bytes of internal nonvolatile memory are available for storing user system constants which are accessible through the SPI compatible serial data interface. These devices are offered in the compact thin TSSOP 16-lead plastic packages.

Features

  • Nonvolatile Memory Preset Maintains Wiper Settings
  • Dual Channel, 256-Position Resolution
  • 14-Bytes of User EEMEM Memory to
    Hold System Constants
  • 100-Years Typical Data Retention

Diagrams

AD5232 Diagram
Functional Block Diagram for AD5232

Specifications

# Channels 2
# Positions 256
Memory Type Non-Volatile
Interface SPI
Resistor Values (kOhms) 10, 50, 100
Bipolar Voltage Range (V) ±3V
Voltage Range (V) +5.5V
Supply Current (max) 3.5µA
Temp. Range -40 °C to.. 85Deg
Absolute Tempco (ppm/°C) 300ppm/C
Package TSSOP

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ADN2860 3 512 Non-Volatile I2C 25, 250 ±2.75 - 10µA 85 15 $5.97
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AD5247 1 128 Volatile I2C 5, 10, 50, 100 - +5.5 3µA 125 35 $0.45
AD5220 1 128 Volatile Up/Down 10, 50, 100 - +5.5 15µA 85 800 $0.90
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AD5160 1 256 Volatile SPI 5, 10, 50, 100 - +5.5 3µA 125 35 $0.64
AD5165 1 256 Volatile SPI 100 - +5.5 0.05µA 125 35 $0.58
AD5245 1 256 Volatile I2C 5, 10, 50, 100 - +5.5 3µA 125 35 $0.64
AD5161 1 256 Volatile I2C, SPI 5, 10, 50, 100 - +5.5 3µA 125 35 $0.65
AD5241 1 256 Volatile I2C 10, 100, 1M ±3 +5.5 0.1µA 105 30 $0.93
AD5200 1 256 Volatile SPI 10, 50 ±3 +5.5 15µA 85 500 $0.89
AD8400 1 256 Volatile SPI 1, 10, 50, 100 - +5.5 0.01µA 125 500 $1.13
AD5260