Overview
The AD5247BKSZ10-RL7 is a 128-position I²C-compatible digital potentiometer produced by Analog Devices Inc. This device functions as an electronic adjustment equivalent to a mechanical potentiometer or a variable resistor. It features a compact 6-lead thin shrink small outline transistor package (SC70) and operates with a single supply voltage ranging from 2.7V to 5.5V. The wiper settings can be controlled and read back through the I²C-compatible digital interface, making it versatile for various applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Number of Positions | 128 | - |
| End-to-End Resistance (RAB) | 10 kΩ, 50 kΩ, 100 kΩ | Ω |
| Supply Voltage Range | 2.7 V to 5.5 V | V |
| Operating Temperature | -40°C to +125°C | °C |
| Resistor Differential Nonlinearity (R-DNL) | ±1 LSB | LSB |
| Resistor Integral Nonlinearity (R-INL) | ±0.5 LSB (typ), ±1 LSB (max) | LSB |
| Temperature Coefficient (Rheostat Mode) | 45 ppm/°C (typ) | ppm/°C |
| Supply Current (IDD) | 0.9 µA (typ) at 3.3 V | µA |
| -3 dB Bandwidth | 600 kHz (typ) for 10 kΩ | kHz |
| Total Harmonic Distortion (THD) | 0.05% (typ) | % |
| Package Type | SC70-6 | - |
Key Features
- 128-position digital potentiometer with I²C-compatible interface
- Single-supply operation from 2.7V to 5.5V
- Full read/write of wiper register
- Power-on preset to midscale
- Low power consumption with supply current as low as 0.9 µA at 3.3V
- High bandwidth and low total harmonic distortion
- Compact SC70-6 package
Applications
- Mechanical potentiometer replacement in new designs
- Transducer adjustment for pressure, temperature, position, chemical, and optical sensors
- RF amplifier biasing
- LCD brightness and contrast adjustment
- Automotive electronics adjustment
- Gain control and offset adjustment
Q & A
- What is the AD5247BKSZ10-RL7 used for?
The AD5247BKSZ10-RL7 is used as a digital potentiometer, replacing mechanical potentiometers or variable resistors in various applications.
- What is the operating voltage range of the AD5247BKSZ10-RL7?
The operating voltage range is from 2.7V to 5.5V.
- How many positions does the AD5247BKSZ10-RL7 have?
The device has 128 positions.
- What is the temperature coefficient of the AD5247BKSZ10-RL7 in rheostat mode?
The temperature coefficient is 45 ppm/°C (typ).
- What is the typical supply current at 3.3V?
The typical supply current is 0.9 µA at 3.3V.
- What is the -3 dB bandwidth of the AD5247BKSZ10-RL7?
The -3 dB bandwidth is 600 kHz (typ) for the 10 kΩ version.
- What is the total harmonic distortion (THD) of the AD5247BKSZ10-RL7?
The total harmonic distortion is 0.05% (typ).
- What package type does the AD5247BKSZ10-RL7 come in?
The device comes in a SC70-6 package.
- What are some common applications of the AD5247BKSZ10-RL7?
Common applications include mechanical potentiometer replacement, transducer adjustment, RF amplifier biasing, LCD brightness and contrast adjustment, and automotive electronics adjustment.
- How does the AD5247BKSZ10-RL7 interface with other components?
The device interfaces through an I²C-compatible digital interface.
