Overview
The AD5220BRZ10 from Analog Devices Inc. is a single-channel, 128-position digitally controlled variable resistor (VR) device. This component functions as an electronic adjustment device, similar to a potentiometer or variable resistor, and is optimized for use in instrument and test equipment, particularly in push-button applications. It is available in various package types, including the 8-lead SOIC package.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Number of Taps | 128 | - |
| Resistance Values | 10 kΩ, 50 kΩ, 100 kΩ | Ω |
| Operating Temperature Range | -40°C to +85°C | °C |
| Power Supply Range | 2.7 V to 5.5 V | V |
| Supply Current | 15 μA to 40 μA | μA |
| Wiper Resistance | 40 Ω to 100 Ω | Ω |
| Temperature Coefficient | 800 ppm/°C | ppm/°C |
| Interface | Up/Down (U/D, CS) | - |
| Package Type | 8-SOIC | - |
Key Features
- 128-position digitally controlled variable resistor, providing fine adjustment steps.
- Available in 10 kΩ, 50 kΩ, and 100 kΩ end-to-end resistance values.
- Low power consumption with a maximum supply current of 40 μA.
- Three-wire serial interface (CLK, CS, U/D) for easy control and integration.
- External debounce circuitry required for the negative-edge sensitive CLK pin.
- Operating temperature range of -40°C to +85°C, making it suitable for industrial and automotive applications.
- Available in surface mount (SO-8) and other package types for various design needs.
Applications
- Replacement for mechanical potentiometers in various applications.
- Incremental adjustment applications in instrumentation, such as gain and offset adjustment.
- Programmable voltage-to-current conversion and programmable filters, delays, and time constants.
- Line impedance matching and power supply adjustment.
- Automotive applications due to its qualification for such use.
Q & A
- What is the AD5220BRZ10 used for?
The AD5220BRZ10 is used as a digitally controlled variable resistor, replacing mechanical potentiometers in various applications.
- What are the available resistance values for the AD5220BRZ10?
The AD5220BRZ10 is available in 10 kΩ, 50 kΩ, and 100 kΩ end-to-end resistance values.
- What is the operating temperature range of the AD5220BRZ10?
The operating temperature range is -40°C to +85°C.
- What type of interface does the AD5220BRZ10 use?
The AD5220BRZ10 uses a three-wire serial interface (CLK, CS, U/D).
- Is external debounce circuitry required for the AD5220BRZ10?
- What are some common applications of the AD5220BRZ10?
- What is the power supply range for the AD5220BRZ10?
The power supply range is 2.7 V to 5.5 V.
- What is the maximum supply current of the AD5220BRZ10?
The maximum supply current is 40 μA.
- What package types are available for the AD5220BRZ10?
The AD5220BRZ10 is available in 8-SOIC and other package types.
- Is the AD5220BRZ10 qualified for automotive applications?
