Overview
The AD5162BRMZ2.5-RL7, produced by Analog Devices Inc., is a dual, 256-position SPI digital potentiometer. This device is designed to provide a compact solution for variable resistance adjustments, making it ideal for high accuracy and stability applications. The AD5162 operates from a 2.7 V to 5.5 V power supply and consumes less than 6 µA, making it suitable for portable battery-operated applications. It is available in a 10-lead MSOP package and features a fast settling time of 5 µs typical on power-up.
Key Specifications
| Parameter | Symbol | Conditions | Min | Typ | Max | Unit | |
|---|---|---|---|---|---|---|---|
| End-to-End Resistance | R_AB | - | - | 2.5 kΩ | - | Ω | |
| Resistor Differential Nonlinearity | R-DNL | RWB, VA = no connect | -2 | ±0.1 | +2 | LSB | |
| Resistor Integral Nonlinearity | R-INL | RWB, VA = no connect | -14 | ±2 | +14 | LSB | |
| Nominal Resistor Tolerance | ∆R_AB | TA = 25°C | -20 | - | +55 | % | |
| Resistance Temperature Coefficient | (∆R_AB/R_AB)/∆T | V_AB = V_DD, wiper = no connect | - | - | 35 ppm/°C | - | ppm/°C |
| Wiper Resistance | R_WB | Code = 0x00, V_DD = 5 V | 160 | 200 | - | Ω | |
| Power Supply Voltage | V_DD | - | 2.7 V | - | 5.5 V | V | |
| Operating Current | I_DD | - | - | - | 6 µA | µA | |
| Operating Temperature | TA | - | -40°C | - | +125°C | °C |
Key Features
- Dual, 256-position SPI digital potentiometer
- Compact 10-lead MSOP package (3 mm x 4.9 mm)
- End-to-end resistance values: 2.5 kΩ, 10 kΩ, 50 kΩ, 100 kΩ
- Low temperature coefficient: 35 ppm/°C
- Low power consumption: less than 6 µA
- Wide operating temperature range: –40°C to +125°C
- Fast settling time: 5 µs typical on power-up
- Full read/write of wiper register
- Power-On preset to midscale
- Evaluation board and software available
- Qualified for automotive applications
Applications
- Systems calibrations
- Electronics level settings
- Mechanical trimmers replacement in new designs
- Permanent factory PCB settings
- Transducer adjustment of pressure, temperature, position, chemical, and optical sensors
- RF amplifier biasing
- Automotive electronics adjustment
- Gain control and offset adjustment
Q & A
- What is the AD5162BRMZ2.5-RL7 used for?
The AD5162BRMZ2.5-RL7 is a dual, 256-position SPI digital potentiometer used for variable resistance adjustments in various applications, including systems calibrations, electronics level settings, and mechanical trimmers replacement.
- What are the available end-to-end resistance values for the AD5162?
The AD5162 is available in four different end-to-end resistance values: 2.5 kΩ, 10 kΩ, 50 kΩ, and 100 kΩ.
- What is the operating voltage range of the AD5162?
The AD5162 operates from a 2.7 V to 5.5 V power supply.
- How much current does the AD5162 consume?
The AD5162 consumes less than 6 µA.
- What is the temperature coefficient of the AD5162?
The resistance temperature coefficient of the AD5162 is 35 ppm/°C.
- Is the AD5162 suitable for automotive applications?
Yes, the AD5162 is qualified for automotive applications.
- What is the package type of the AD5162?
The AD5162 is available in a compact 10-lead MSOP package (3 mm x 4.9 mm).
- Is an evaluation kit available for the AD5162?
Yes, an AD5162 evaluation kit and software are available.
- What is the settling time of the AD5162 on power-up?
The settling time of the AD5162 is 5 µs typical on power-up.
- Can the wiper settings be read and written?
Yes, the AD5162 allows full read/write of the wiper register.
