Overview
The AD5204BRZ100 is a digitally controlled variable resistor (VR) device manufactured by Analog Devices Inc. This component is part of the AD5204 series, which provides a 4-channel, 256-position digitally controlled potentiometer. It is designed to replace mechanical potentiometers and offers precise digital control over resistance values, making it versatile for various applications in electronics and instrumentation.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Channels | 4 |
| Number of Taps | 256 |
| Resistance (Ohms) | 100 kΩ |
| Interface | SPI (3-wire serial) |
| Supply Voltage | 2.7 V to 5.5 V (single-supply), ±2.7 V (dual-supply) |
| Temperature Coefficient | 700 ppm/°C (typical) |
| Operating Temperature | -40°C to 85°C |
| Package/Case | 24-SOIC (Wide) |
| Memory Type | Volatile |
| Resistance Tolerance | ±30% |
| Wiper Resistance (Ohms) | 50 (typical) |
Key Features
- Multiple independently programmable channels
- 256-position digital potentiometer
- SPI-compatible serial data input
- Power-on midscale preset
- Optional reset (PR) pin for midscale positioning
- Cascade pin for daisy chaining in multiple VR applications
- Selectable address for multiple device control
- Linear taper
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 AD5204BRZ100 used for? The AD5204BRZ100 is used as a digitally controlled variable resistor, replacing mechanical potentiometers in various electronic and instrumentation applications.
- How many channels does the AD5204BRZ100 have? The AD5204BRZ100 has 4 independently programmable channels.
- What is the resistance range of the AD5204BRZ100? The AD5204BRZ100 has a fixed resistance of 100 kΩ.
- What interface does the AD5204BRZ100 use? The AD5204BRZ100 uses a 3-wire SPI-compatible serial interface.
- What is the operating temperature range of the AD5204BRZ100? The operating temperature range is -40°C to 85°C.
- What package type is the AD5204BRZ100 available in? The AD5204BRZ100 is available in a 24-SOIC (Wide) package.
- Is the AD5204BRZ100 RoHS compliant? Yes, the AD5204BRZ100 is RoHS compliant.
- What is the typical temperature coefficient of the AD5204BRZ100? The typical temperature coefficient is 700 ppm/°C.
- Can the AD5204BRZ100 be reset to a midscale position? Yes, an optional reset (PR) pin can force all wipers to the midscale position.
- Can multiple AD5204BRZ100 devices be daisy-chained? Yes, the AD5204BRZ100 has a cascade pin that allows simple daisy chaining in multiple VR applications.
