Overview
The AD5170BRMZ100-RL7 is a digital potentiometer produced by Analog Devices Inc. This component is part of the AD5170 series, which offers a nonvolatile, digitally controlled variable resistor. The AD5170 is designed to provide a high level of precision and reliability, making it suitable for a variety of applications where adjustable resistance is required.
The device features a 100 kΩ resistance with 256 tap positions, allowing for fine-tuned adjustments. It operates over a supply voltage range of 2.7 V to 5.5 V and is compatible with I²C interface for easy integration into digital systems.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Resistance Value | - | 100 kΩ | - | Ω |
| Number of Taps | - | 256 | - | - |
| Supply Voltage (VDD) | 2.7 V | - | 5.5 V | V |
| Temperature Coefficient | - | - | 35 ppm/°C | ppm/°C |
| Integral Nonlinearity (INL) | -1 LSB | - | +1 LSB | LSB |
| Differential Nonlinearity (DNL) | -1 LSB | - | +1 LSB | LSB |
| Wiper Resistance (RWB) | 160 Ω | - | 200 Ω | Ω |
| Supply Current (IDD) | - | - | 6 µA | µA |
| Power Dissipation | - | - | 33 µW | µW |
Key Features
- I²C Interface: The AD5170 uses an I²C-compatible digital interface for easy communication with microcontrollers and other digital systems.
- Nonvolatile Memory: The device features one-time programmable (OTP) memory, allowing for permanent setting of the resistance value after multiple adjustments.
- High Resolution: With 256 tap positions, the AD5170 offers high resolution for precise resistance adjustments.
- Low Power Consumption: The component has a low supply current and power dissipation, making it suitable for battery-powered applications.
- Wide Operating Range: The device operates over a supply voltage range of 2.7 V to 5.5 V and supports a wide temperature range.
Applications
- Mechanical Potentiometer Replacement: The AD5170 can replace mechanical potentiometers in various applications, offering greater reliability and precision.
- Portable Electronics: Suitable for level adjustments in portable electronics such as audio volume control and LCD panel brightness and contrast control.
- Programmable Voltage to Current Conversion: Can be used in applications requiring programmable voltage to current conversion.
- Programmable Filters and Time Constants: Useful in designing programmable filters, delays, and time constants.
- Feedback Resistor in Power Supplies: Can be used as a feedback resistor in programmable power supply applications.
Q & A
- What is the resistance value of the AD5170BRMZ100-RL7?
The resistance value of the AD5170BRMZ100-RL7 is 100 kΩ.
- How many tap positions does the AD5170BRMZ100-RL7 have?
The AD5170BRMZ100-RL7 has 256 tap positions.
- What is the supply voltage range for the AD5170BRMZ100-RL7?
The supply voltage range for the AD5170BRMZ100-RL7 is from 2.7 V to 5.5 V.
- Does the AD5170BRMZ100-RL7 have nonvolatile memory?
Yes, the AD5170BRMZ100-RL7 features one-time programmable (OTP) nonvolatile memory.
- What is the temperature coefficient of the AD5170BRMZ100-RL7?
The temperature coefficient of the AD5170BRMZ100-RL7 is 35 ppm/°C.
- What is the wiper resistance of the AD5170BRMZ100-RL7?
The wiper resistance of the AD5170BRMZ100-RL7 is between 160 Ω and 200 Ω.
- What is the typical supply current of the AD5170BRMZ100-RL7?
The typical supply current of the AD5170BRMZ100-RL7 is 6 µA.
- What are some common applications of the AD5170BRMZ100-RL7?
Common applications include mechanical potentiometer replacement, portable electronics, programmable voltage to current conversion, and feedback resistors in power supplies.
- Is the AD5170BRMZ100-RL7 still in production?
No, the AD5170BRMZ100-RL7 is listed as obsolete and is no longer in production.
- What interface does the AD5170BRMZ100-RL7 use for communication?
The AD5170BRMZ100-RL7 uses an I²C-compatible digital interface for communication.
