Overview
The AD5220BRMZ10-REEL7, produced by Analog Devices Inc., is a single-channel, 128-position digitally controlled variable resistor (VR) device. This increment/decrement digital potentiometer functions as an electronic replacement for a potentiometer or variable resistor, making it ideal for applications requiring precise digital control over resistance. The device is optimized for use in instrument and test equipment, particularly in push-button applications.
Key Specifications
| Parameter | Symbol | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|---|
| Number of Positions | - | - | - | 128 | - | - |
| Nominal Resistor Values | - | - | - | 10 kΩ, 50 kΩ, 100 kΩ | - | - |
| Operating Temperature Range | - | - | -40°C | - | 85°C | °C |
| Power Supply Range | VDD | - | 2.7 V | - | 5.5 V | V |
| Supply Current | IDD | VIH = +5 V or VIL = 0 V, VDD = +5 V | 15 µA | - | 40 µA | µA |
| Power Dissipation | PDISS | VIH = +5 V or VIL = 0 V, VDD = +5 V | 75 µW | - | 200 µW | µW |
| Resistance Temperature Coefficient | ∆RAB/∆T | VAB = VDD, Wiper = No Connect | - | 800 ppm/°C | - | ppm/°C |
| Wiper Resistance | RW | IW = VDD/R, VDD = +3 V or +5 V | 40 Ω | - | 100 Ω | Ω |
| Input Logic High | VIH | VDD = +5 V/+3 V | 2.4 V / 2.1 V | - | - | V |
| Input Logic Low | VIL | VDD = +5 V/+3 V | 0.8 V / 0.6 V | - | - | V |
Key Features
- Single-channel, 128-position digitally controlled variable resistor (VR) device.
- Increment/decrement count control through UP/DOWN interface.
- Low power consumption: maximum supply current of 40 µA.
- Wide range of nominal resistor values: 10 kΩ, 50 kΩ, and 100 kΩ.
- Operating temperature range from -40°C to +85°C.
- Qualified for automotive applications with controlled manufacturing.
- Low wiper resistance: 40 Ω to 100 Ω.
- High bandwidth options: up to 650 kHz for 10 kΩ resistors.
Applications
- Instrument and test equipment.
- Push-button applications requiring precise digital control.
- Automotive applications due to its qualified manufacturing process.
- Audio and video equipment where variable resistance is needed.
- Industrial control systems requiring digital potentiometer functionality.
Q & A
- What is the AD5220BRMZ10-REEL7 used for?
The AD5220BRMZ10-REEL7 is used as a digitally controlled variable resistor, replacing traditional potentiometers in various applications.
- How many positions does the AD5220BRMZ10-REEL7 have?
The device has 128 positions.
- What are the nominal resistor values available for the AD5220BRMZ10-REEL7?
The nominal resistor values are 10 kΩ, 50 kΩ, and 100 kΩ.
- What is the operating temperature range of the AD5220BRMZ10-REEL7?
The operating temperature range is from -40°C to +85°C.
- Is the AD5220BRMZ10-REEL7 suitable for automotive applications?
Yes, it is qualified for automotive applications with controlled manufacturing.
- What is the power supply range for the AD5220BRMZ10-REEL7?
The power supply range is from 2.7 V to 5.5 V.
- What is the maximum supply current for the AD5220BRMZ10-REEL7?
The maximum supply current is 40 µA.
- What is the wiper resistance of the AD5220BRMZ10-REEL7?
The wiper resistance is between 40 Ω and 100 Ω.
- What is the bandwidth of the AD5220BRMZ10-REEL7 for a 10 kΩ resistor?
The bandwidth is up to 650 kHz for a 10 kΩ resistor.
- How does the AD5220BRMZ10-REEL7 control the resistance?
The resistance is controlled through an increment/decrement count using the UP/DOWN interface.
