AD7376:  +30 V/±15 V Operation 128-Position Digital Potentiometer

The AD7376* is one of the few high voltage, high performance digital potentiometers** on the market. This device can be used as a programmable resistor or resistor divider. The AD7376 performs the ...More

Note: The AD7376AN10 is not recommended for new designs. For new designs, please use AD7376ARWZ10.

AD7376:  +30 V/±15 V Operation 128-Position Digital Potentiometer

Product Description

The AD7376* is one of the few high voltage, high performance digital potentiometers** on the market. This device can be used as a programmable resistor or resistor divider. The AD7376 performs the same electronic adjustment function as mechanical potentiometers, variable resistors, and trimmers with enhanced resolution, solid-state reliability, and programmability. With digital rather than manual control, the AD7376 provides layout flexibility and allows closed-loop dynamic controllability.

The AD7376 features sleep-mode programmability in shutdown that can be used to program the preset before device activation, thus providing an alternative to costly EEPROM solutions.

The AD7376 is available in 14-lead TSSOP and 16-lead wide body SOIC packages in 10 kΩ, 50 kΩ, and 100 kΩ options. All parts are guaranteed to operate over the −40°C to +85°C extended industrial temperature range.

Applications

  • High voltage DAC
  • Programmable power supply
  • Programmable gain and offset adjustment
  • Programmable filters, delays
  • Actuator control
  • Audio volume control
  • Mechanical potentiometer replacement

    • *Patent number: 54952455. **The terms digital potentiometer and RDAC are used interchangeably.

    Data Sheet, Rev. B, 3/07

    Features

    • 128 positions
    • 10 kΩ, 50 kΩ, 100 kΩ
    • 5 V to 30 V single-supply operation
    • ±5 V to ±15 V dual-supply operation
    • 3-wire SPI®-compatible serial interface
    • THD 0.006% typical
    • Programmable preset
    • Power shutdown: less than 1 μA
    • iCMOS™ process technology

    Diagrams

    AD7376 Diagram
    Functional Block Diagram for AD7376

    Specifications

    # Channels 1
    # Positions 128
    Memory Type Volatile
    Interface SPI
    Resistor Values (kOhms) 10, 50, 100, 1M
    Bipolar Voltage Range (V) ±15V
    Voltage Range (V) +28V
    Supply Current (max) 10µA
    Temp. Range -40 °C to.. 85Deg
    Absolute Tempco (ppm/°C) 35ppm/C
    Package PDIP,SOIC,TSSOP

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