Overview
The AD5207BRUZ10-RL7, produced by Analog Devices Inc., is a 2-channel, 256-position digital potentiometer. This device provides dual-channel, digitally controlled variable resistor (VR) functionality, mimicking the electronic adjustment of a traditional potentiometer. Each channel contains a fixed resistor with a wiper contact, allowing for a completely programmable resistance value between the wiper and either end of the fixed resistor. The device is available in various resistance values, including 10 kΩ, 50 kΩ, and 100 kΩ, with a ±1% channel-to-channel matching tolerance and a nominal temperature coefficient of 500 ppm/°C.
Key Specifications
| Parameter | Value | Notes |
|---|---|---|
| Number of Channels | 2 | |
| Number of Positions | 256 | |
| Fixed Resistor Values | 10 kΩ, 50 kΩ, 100 kΩ | |
| Channel-to-Channel Matching Tolerance | ±1% | |
| Temperature Coefficient | 500 ppm/°C | Nominal |
| Operating Temperature Range | -40°C to +125°C | Extended industrial temperature range |
| Package Type | TSSOP-14 | 1.1 mm thin, suitable for PCMCIA applications |
| Power Shutdown Mode | Open circuit on A Terminal, short wiper to B Terminal | Activated by SHDN pin in logic low state |
| Digital Interface | Three-wire serial input control interface | Includes CS, SDI, SDO, SHDN, and CLK pins |
Key Features
- Dual-channel, 256-position digital potentiometer with programmable resistance values.
- Fixed resistor values of 10 kΩ, 50 kΩ, and 100 kΩ with ±1% channel-to-channel matching tolerance.
- Nominal temperature coefficient of 500 ppm/°C.
- Internal reset block forces the wiper to the midscale position during power-up.
- Power shutdown mode via SHDN pin, minimizing power consumption.
- Three-wire serial input control interface for digital control.
- ESD protection on digital input pins.
- Extended industrial temperature range operation from -40°C to +125°C.
- Thin TSSOP-14 package suitable for PCMCIA applications.
Applications
- Adjustment and calibration in various electronic systems.
- Audio and video equipment for volume and tone control.
- Industrial control systems for sensor calibration and signal conditioning.
- Medical devices requiring precise resistance adjustments.
- Automotive systems for sensor calibration and signal processing.
- PCMCIA applications due to the thin TSSOP-14 package.
Q & A
- What is the AD5207BRUZ10-RL7?
The AD5207BRUZ10-RL7 is a 2-channel, 256-position digital potentiometer produced by Analog Devices Inc.
- What are the available fixed resistor values for the AD5207?
The fixed resistor values available are 10 kΩ, 50 kΩ, and 100 kΩ.
- What is the channel-to-channel matching tolerance of the AD5207?
The channel-to-channel matching tolerance is ±1%.
- How does the power shutdown mode work on the AD5207?
The power shutdown mode is activated by the SHDN pin in logic low state, which forces an open circuit on the A Terminal and shorts the wiper to the B Terminal, minimizing power consumption.
- What type of digital interface does the AD5207 use?
The AD5207 uses a three-wire serial input control interface.
- What is the operating temperature range of the AD5207?
The operating temperature range is from -40°C to +125°C.
- What package type is the AD5207 available in?
The AD5207 is available in a 1.1 mm thin TSSOP-14 package.
- Does the AD5207 have ESD protection?
- Can the AD5207 update both channels simultaneously?
No, the AD5207 cannot update both channels simultaneously; two separate 10-bit data words must be clocked in to change both VR settings.
- What happens to the VR latch settings during shutdown?
The VR latch settings are maintained during shutdown, and the previous resistance values are retained when the device is resumed from shutdown.
