Overview
The AD5227BUJZ10-RL7 is a 64-position up/down control digital potentiometer produced by Analog Devices Inc. This device functions as an electronic adjustment equivalent to a 5 V potentiometer or variable resistor, offering a simple 3-wire up/down interface for manual or high-speed digital control. It presets to midscale at power-up and can be controlled by any host controller, discrete logic, or manually with a rotary encoder or pushbuttons. The AD5227 is known for its 64-step resolution, compact footprint, and straightforward interface, making it an ideal replacement for mechanical potentiometers in various applications.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| End-to-End Resistance (RAB) | 10 kΩ, 50 kΩ, 100 kΩ | - | - | Ω |
| Resistor Differential Nonlinearity (R-DNL) | -0.5 | ±0.15 | 0.5 | LSB |
| Resistor Integral Nonlinearity (R-INL) | -1 | ±0.3 | 1 | LSB |
| Nominal Resistor Tolerance (∆RAB/RAB) | -20 | - | 20 | % |
| Resistance Temperature Coefficient (∆RAB/RAB)/∆T | - | 35 | - | ppm/°C |
| Wiper Resistance (RW) | 50 | - | 200 | Ω (VDD = 2.8 V to 5.5 V) |
| Input Logic High (VIH) | 2.4 | - | 5.5 | V |
| Input Logic Low (VIL) | 0 | - | 0.8 | V |
| Power Supply Range (VDD) | 2.7 | - | 5.5 | V |
| Supply Current (IDD) | 0.4 | - | 3 | μA (VDD = 5 V) |
| Bandwidth (-3 dB) | - | - | 460 kHz (RAB = 10 kΩ) | - |
| Total Harmonic Distortion (THD) | - | - | 0.05 % (VA = 1 V rms, RAB = 10 kΩ) | - |
| Adjustment Settling Time (tS) | - | - | 1 μs (VA = 5 V ± 1 LSB error band) | - |
Key Features
- 64-position digital potentiometer with up/down control interface
- Available in 10 kΩ, 50 kΩ, and 100 kΩ end-to-end resistance options
- Simple 3-wire interface for manual or high-speed digital control
- Preset to midscale at power-up
- Low power consumption with a supply current of 0.4 μA to 3 μA
- Compact TSOT-23-8 package
- Wide operating temperature range from -40°C to 105°C
- High bandwidth and low total harmonic distortion
Applications
- Audio and video equipment for volume and tone control
- Industrial control systems for sensor calibration and adjustment
- Medical devices requiring precise resistance adjustments
- Aerospace and defense applications where reliability and precision are critical
- Automotive systems for various control and adjustment needs
Q & A
- What is the AD5227BUJZ10-RL7?
The AD5227BUJZ10-RL7 is a 64-position up/down control digital potentiometer produced by Analog Devices Inc.
- What are the available end-to-end resistance options for the AD5227?
The AD5227 is available in 10 kΩ, 50 kΩ, and 100 kΩ end-to-end resistance options.
- How does the AD5227 interface with other components?
The AD5227 has a simple 3-wire up/down interface that can be controlled by any host controller, discrete logic, or manually with a rotary encoder or pushbuttons.
- What is the power supply range for the AD5227?
The power supply range for the AD5227 is from 2.7 V to 5.5 V.
- What is the typical supply current of the AD5227?
The typical supply current of the AD5227 is between 0.4 μA and 3 μA at VDD = 5 V.
- What is the bandwidth of the AD5227?
The bandwidth of the AD5227 is up to 460 kHz for a 10 kΩ end-to-end resistance.
- What is the total harmonic distortion (THD) of the AD5227?
The total harmonic distortion (THD) of the AD5227 is 0.05% at VA = 1 V rms and RAB = 10 kΩ.
- How long does it take for the AD5227 to settle after an adjustment?
The adjustment settling time (tS) of the AD5227 is 1 μs for a 5 V ± 1 LSB error band.
- What is the operating temperature range of the AD5227?
The operating temperature range of the AD5227 is from -40°C to 105°C.
- In what package is the AD5227 available?
The AD5227 is available in a TSOT-23-8 package.
