Overview
The AD5206BRU10-REEL7, produced by Analog Devices Inc., is a 6-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 traditional potentiometers. 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 completely programmable resistance values between the A terminal and the wiper or the B terminal and the wiper.
Key Specifications
| Parameter | Symbol | Test Conditions/Comments | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Power Single-Supply Range | VDD | VSS = 0 V | 2.7 | 5.5 | V | |
| Power Dual-Supply Range | VDD/VSS | ±2.3 | ±2.7 | V | ||
| Positive Supply Current | IDD | VIH = 5 V or VIL = 0 V | 12 | 60 | μA | |
| Negative Supply Current | ISS | VSS = −2.5 V, VDD = +2.7 V | 12 | 60 | μA | |
| Bandwidth −3 dB | BW_10K | RAB = 10 kΩ | 721 kHz | |||
| Bandwidth −3 dB | BW_50K | RAB = 50 kΩ | 137 kHz | |||
| Input Logic High | VIH | VDD = 5 V | 2.4 | V | ||
| Input Logic Low | VIL | VDD = 5 V | 0.8 | V | ||
| Terminal Resistance | RAB | 10 kΩ, 50 kΩ, 100 kΩ |
Key Features
- 6-channel, 256-position digitally controlled variable resistor (VR) device.
- Each channel contains a fixed resistor with a wiper contact that taps the fixed resistor value at a point determined by a digital code.
- SPI-compatible serial data input for easy programming.
- Operates on a single supply from +2.7 V to +5.5 V or dual supplies from ±2.3 V to ±2.7 V.
- Low power consumption with a typical supply current of 12 μA to 60 μA.
- High bandwidth: up to 721 kHz for 10 kΩ and 137 kHz for 50 kΩ.
- Power-on midscale preset feature.
- Shutdown mode for reduced power consumption.
Applications
- Instrumentation: gain and offset adjustment.
- Programmable voltage-to-current conversion.
- Programmable filters, delays, and time constants.
- Line impedance matching.
- Automotive and industrial control systems.
- Aerospace and defense applications.
- Medical devices requiring precise resistance control.
Q & A
- What is the AD5206BRU10-REEL7 used for?
The AD5206BRU10-REEL7 is used as a 6-channel, 256-position digitally controlled variable resistor, replacing traditional potentiometers in various applications.
- What are the supply voltage ranges for the AD5206BRU10-REEL7?
The device operates on a single supply from +2.7 V to +5.5 V or dual supplies from ±2.3 V to ±2.7 V.
- How many channels does the AD5206BRU10-REEL7 have?
The AD5206BRU10-REEL7 has 6 independently programmable channels.
- What is the resolution of the AD5206BRU10-REEL7?
The device has a resolution of 256 positions per channel.
- What is the terminal resistance range of the AD5206BRU10-REEL7?
The terminal resistance range is 10 kΩ, 50 kΩ, or 100 kΩ.
- How does the AD5206BRU10-REEL7 communicate?
The device uses a 3-wire SPI-compatible serial data input for programming.
- What is the power consumption of the AD5206BRU10-REEL7?
The typical supply current ranges from 12 μA to 60 μA.
- Does the AD5206BRU10-REEL7 have a shutdown mode?
Yes, the device has a shutdown mode to reduce power consumption.
- What are some common applications of the AD5206BRU10-REEL7?
Common applications include instrumentation, programmable voltage-to-current conversion, programmable filters, and line impedance matching.
- What is the bandwidth of the AD5206BRU10-REEL7?
The bandwidth is up to 721 kHz for 10 kΩ and 137 kHz for 50 kΩ.
