Overview
The AD5204BRUZ100-R7, 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 mechanical 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 device is ideal for applications requiring precise and programmable resistance adjustments.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Number of Channels | 4 | |
| Number of Positions | 256 | |
| Terminal Resistance | 10 kΩ, 50 kΩ, 100 kΩ | |
| Supply Voltage | +2.7 V to +5.5 V (single-supply), ±2.7 V (dual-supply) | V |
| Operating Temperature Range | -40°C to +85°C | °C |
| Package Type | 24-Lead TSSOP | |
| Interface | 3-wire SPI-compatible serial data input | |
| Power-on Preset | Midscale | |
| Bandwidth (RAB = 10 kΩ) | 721 kHz | kHz |
| Total Harmonic Distortion (THD) | 0.004 % | % |
| Settling Time (RAB = 10 kΩ) | 2 μs | μs |
Key Features
- Multiple independently programmable channels
- 256-position resolution for each channel
- 3-wire SPI-compatible serial data input for easy interface
- Single-supply operation from +2.7 V to +5.5 V and dual-supply operation from ±2.7 V
- Power-on midscale preset for consistent startup conditions
- Optional reset pin to force all wipers to the midscale position
- Available in 24-lead TSSOP package
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 AD5204BRUZ100-R7 used for? The AD5204BRUZ100-R7 is used as a digitally controlled variable resistor, replacing mechanical potentiometers in various applications.
- How many channels does the AD5204BRUZ100-R7 have? The AD5204BRUZ100-R7 has 4 channels.
- What is the resolution of each channel? Each channel has a 256-position resolution.
- What is the operating voltage range of the AD5204BRUZ100-R7? The device operates from +2.7 V to +5.5 V (single-supply) and ±2.7 V (dual-supply).
- What is the typical bandwidth of the AD5204BRUZ100-R7? The typical bandwidth is 721 kHz for a 10 kΩ resistor.
- How does the device handle power-on conditions? The device has a power-on midscale preset.
- What interface does the AD5204BRUZ100-R7 use? The device uses a 3-wire SPI-compatible serial data input.
- What are the common applications of the AD5204BRUZ100-R7? Common applications include mechanical potentiometer replacement, instrumentation, programmable voltage-to-current conversion, and line impedance matching.
- What is the package type of the AD5204BRUZ100-R7? The device is available in a 24-lead TSSOP package.
- What is the operating temperature range of the AD5204BRUZ100-R7? The device operates over the extended industrial temperature range of -40°C to +85°C.
