Overview
The AD5204BRUZ10-REEL7, 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 potentiometer or variable resistor, making it an ideal replacement for mechanical potentiometers. Each channel contains a fixed resistor with a wiper contact that can be programmed to tap the fixed resistor value at a specific point determined by a digital code loaded into the SPI-compatible serial-input register.
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 |
| Maximum Junction Temperature | 150°C | °C |
| Interface | 3-wire SPI-compatible serial data input | |
| Package Type | 24-Lead TSSOP | |
| Bandwidth (−3 dB) | 721 kHz (RAB = 10 kΩ), 137 kHz (RAB = 50 kΩ), 69 kHz (RAB = 100 kΩ) | kHz |
| Settling Time | 2 μs (RAB = 10 kΩ), 9 μs (RAB = 50 kΩ), 18 μs (RAB = 100 kΩ) | μs |
Key Features
- Multiple independently programmable channels
- Power-on midscale preset
- Optional reset (PR) pin to set wipers to midscale position
- Serial data output pin for daisy chaining (AD5204 only)
- Low power consumption and high accuracy
- SPI-compatible serial data input for easy integration with microcontrollers
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 AD5204BRUZ10-REEL7 used for?
The AD5204BRUZ10-REEL7 is used as a digitally controlled variable resistor, replacing mechanical potentiometers in various applications.
- How many channels does the AD5204BRUZ10-REEL7 have?
The AD5204BRUZ10-REEL7 has 4 channels.
- What are the available terminal resistances for the AD5204BRUZ10-REEL7?
The terminal resistances available are 10 kΩ, 50 kΩ, and 100 kΩ.
- What is the operating voltage range for the AD5204BRUZ10-REEL7?
The operating voltage range is +2.7 V to +5.5 V for single-supply and ±2.7 V for dual-supply operation.
- What interface does the AD5204BRUZ10-REEL7 use?
The AD5204BRUZ10-REEL7 uses a 3-wire SPI-compatible serial data input interface.
- What is the maximum operating temperature for the AD5204BRUZ10-REEL7?
The maximum operating temperature is +85°C.
- What is the package type of the AD5204BRUZ10-REEL7?
The package type is 24-Lead TSSOP.
- How does the AD5204BRUZ10-REEL7 handle power-on settings?
The device has a power-on midscale preset feature.
- Can the AD5204BRUZ10-REEL7 be reset to a specific position?
Yes, an optional reset (PR) pin can set the wipers to the midscale position.
- What are some common applications of the AD5204BRUZ10-REEL7?
Common applications include mechanical potentiometer replacement, instrumentation for gain and offset adjustment, programmable voltage-to-current conversion, and line impedance matching.
