Overview
The AD5206BR100-REEL, 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 mechanical 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.
The device operates with a single supply voltage ranging from +2.7 V to +5.5 V or with a dual supply voltage of ±2.7 V. It is available in 24-lead surface-mount SOIC and TSSOP packages and is guaranteed to operate over the extended industrial temperature range of −40°C to +85°C.
Key Specifications
| Parameter | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Number of Channels | - | 6 | - | - | - |
| Number of Positions | - | 256 | - | - | - |
| Terminal Resistance | RAB | 10 kΩ, 50 kΩ, 100 kΩ | - | - | Ω |
| Single-Supply Range | VDD | 2.7 | - | 5.5 | V |
| Dual-Supply Range | VDD/VSS | ±2.3 | - | ±2.7 | V |
| Positive Supply Current | IDD | 12 | - | 60 | μA |
| Negative Supply Current | ISS | 12 | - | 60 | μA |
| Power Dissipation | PDISS | - | - | 0.3 | mW |
| Bandwidth (-3 dB) | BW_10K | - | - | 721 kHz | - |
| Bandwidth (-3 dB) at 50 kΩ | BW_50K | - | - | 137 kHz | - |
Key Features
- 6-channel, 256-position digitally controlled variable resistor (VR) device
- 3-wire SPI-compatible serial data input
- Single-supply operation: +2.7 V to +5.5 V; Dual-supply operation: ±2.7 V
- Power-on midscale preset
- Optional reset (PR) pin to force all wipers to the midscale position
- Available in 24-lead surface-mount SOIC and TSSOP packages
- Operates over the extended industrial temperature range of −40°C to +85°C
Applications
- Mechanical potentiometer replacement
- Instrumentation: gain, offset adjustment
- Programmable voltage-to-current conversion
- Programmable filters, delays, time constants
- Line impedance matching
Q & A
- What is the AD5206BR100-REEL used for?
The AD5206BR100-REEL is used as a 6-channel, 256-position digitally controlled variable resistor, replacing mechanical potentiometers and providing programmable resistance values.
- What are the supply voltage ranges for the AD5206BR100-REEL?
The device operates with a single supply voltage ranging from +2.7 V to +5.5 V or with a dual supply voltage of ±2.7 V.
- What is the terminal resistance of the AD5206BR100-REEL?
The terminal resistance of the AD5206BR100-REEL is available in 10 kΩ, 50 kΩ, or 100 kΩ.
- How many positions does each channel of the AD5206BR100-REEL have?
Each channel of the AD5206BR100-REEL has 256 positions.
- What is the bandwidth of the AD5206BR100-REEL at 10 kΩ and 50 kΩ?
The bandwidth is 721 kHz at 10 kΩ and 137 kHz at 50 kΩ.
- What are the common applications of the AD5206BR100-REEL?
Common applications include mechanical potentiometer replacement, instrumentation for gain and offset adjustment, programmable voltage-to-current conversion, programmable filters, delays, and time constants, and line impedance matching.
- What packages is the AD5206BR100-REEL available in?
The AD5206BR100-REEL is available in 24-lead surface-mount SOIC and TSSOP packages.
- What is the operating temperature range of the AD5206BR100-REEL?
The device operates over the extended industrial temperature range of −40°C to +85°C.
- How is the resistance value programmed in the AD5206BR100-REEL?
The resistance value is programmed by clocking an 11-bit serial data-word into the SPI-compatible serial-input register.
- Does the AD5206BR100-REEL have a reset feature?
