Overview
The AD5204BRUZ100, produced by Analog Devices Inc., is a 4-channel, 256-position digitally controlled variable resistor (VR) device. This component performs the same electronic adjustment function as a traditional potentiometer or variable resistor. Each channel contains a fixed resistor with a wiper contact that taps the fixed resistor value at a point determined by a digital code loaded into the SPI-compatible serial-input register. This allows for a completely programmable value of resistance between the A terminal and the wiper or the B terminal and the wiper.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Channels | 4 |
| Number of Positions | 256 |
| Terminal Resistance | 100 kΩ |
| Temperature Coefficient | 700 ppm/°C |
| Supply Voltage | +2.7 V to +5.5 V (single-supply), ±2.7 V (dual-supply) |
| Interface | 3-wire SPI-compatible serial data input |
| Package | 24-Lead TSSOP |
| Operating Temperature Range | −40°C to +85°C |
| Memory Type | Volatile |
Key Features
- Multiple independently programmable channels
- 256-position digital potentiometer with linear resistance taper
- Power-on midscale preset
- Optional reset (PR) pin to force wipers to midscale position
- SPI-compatible serial data input for easy digital control
- Compact 24-lead TSSOP package
- Extended industrial temperature range operation
Applications
- Mechanical potentiometer replacement
- Instrumentation: gain and offset adjustment
- Programmable voltage-to-current conversion
- Programmable filters, delays, and time constants
- Line impedance matching
Q & A
- What is the primary function of the AD5204BRUZ100?
The AD5204BRUZ100 functions as a 4-channel, 256-position digitally controlled variable resistor, replacing traditional potentiometers or variable resistors.
- How many positions does each channel of the AD5204BRUZ100 have?
Each channel has 256 positions.
- What is the terminal resistance of the AD5204BRUZ100?
The terminal resistance is 100 kΩ.
- What is the operating temperature range of the AD5204BRUZ100?
The operating temperature range is −40°C to +85°C.
- What interface does the AD5204BRUZ100 use for digital control?
The device uses a 3-wire SPI-compatible serial data input.
- What package types are available for the AD5204BRUZ100?
The device is available in a 24-lead TSSOP package.
- Is the AD5204BRUZ100 suitable for replacing mechanical potentiometers?
- Can the AD5204BRUZ100 be used in instrumentation applications?
- Does the AD5204BRUZ100 have a reset feature?
- What is the memory type of the AD5204BRUZ100?
The memory type is volatile.
- Can the AD5204BRUZ100 be used in programmable voltage-to-current conversion applications?
