Overview
The AD5203AR100, produced by Analog Devices Inc., is a quad-channel, 64-position digitally-controlled variable resistor (VR) device. This component performs the same electronic adjustment function as a potentiometer or variable resistor, making it ideal for applications requiring precise and programmable resistance control. The device is available in compact 24-lead SOIC and TSSOP-24 packages, each containing four independent variable resistors.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Channels | 4 |
| Number of Positions | 64 |
| Total Resistance | 10 kΩ, 100 kΩ |
| Supply Voltage Range | 2.7 V to 5.5 V |
| Quiescent Current | 0.01 μA to 4 mA (depending on mode) |
| Operating Temperature Range | -40°C to 85°C |
| Interface | 3-Wire SPI-Compatible Serial Data Input |
| Update Data Loading Rate | 10 MHz |
| Power Shutdown Current | Less than 5 μA |
| Package Type | SOIC W, TSSOP-24 |
| Number of Pins | 24 |
Key Features
- Replaces four potentiometers with a single device.
- Power shutdown feature with less than 5 μA current consumption.
- 3-Wire SPI-compatible serial data input with a 10 MHz update data loading rate.
- Single supply operation from +2.7 V to +5.5 V.
- Midscale preset and reset to midscale by asserting the RS pin.
- Compact SOIC and TSSOP-24 packages.
Applications
- Mechanical potentiometer replacement.
- Programmable filters, delays, and time constants.
- Volume control and panning.
- Line impedance matching.
- Power supply adjustment.
Q & A
- What is the AD5203AR100 used for?
The AD5203AR100 is used as a digitally-controlled variable resistor, replacing traditional potentiometers in various applications.
- How many channels does the AD5203AR100 have?
The AD5203AR100 has four independent channels.
- What is the total resistance range of the AD5203AR100?
The total resistance range is available in 10 kΩ and 100 kΩ versions.
- What is the supply voltage range for the AD5203AR100?
The supply voltage range is from +2.7 V to +5.5 V.
- How does the power shutdown feature work?
The power shutdown feature places the device in a low power state where the terminals are open-circuited and the wiper is connected to the B terminal, consuming only leakage currents.
- What interface does the AD5203AR100 use?
The AD5203AR100 uses a 3-Wire SPI-compatible serial data input interface.
- What is the maximum update data loading rate?
The maximum update data loading rate is 10 MHz.
- What are the operating temperature limits for the AD5203AR100?
The operating temperature range is from -40°C to 85°C.
- How many positions can each channel be set to?
Each channel can be set to 64 different positions.
- What is the quiescent current consumption in shutdown mode?
The quiescent current consumption in shutdown mode is less than 5 μA.
