Overview
The AD5142BRUZ10-RL7 is a dual-channel, 256-position, SPI, non-volatile digital potentiometer produced by Analog Devices Inc. This device is designed to provide a high degree of precision and reliability in various adjustment applications. It features low resistor tolerance and a low nominal temperature coefficient, making it suitable for open-loop applications and those requiring tolerance matching. The AD5142BRUZ10-RL7 operates with a wide supply voltage range and supports single- and dual-supply operation, enhancing its versatility in different electronic systems.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Number of Positions | 256 | - |
| Resistance Options | 10 kΩ | Ω |
| Resistor Tolerance | ±8% maximum | % |
| Temperature Coefficient | 35 ppm/°C typical | ppm/°C |
| Bandwidth | 3 MHz typical | Hz |
| Total Harmonic Distortion (THD) | -80 dB typical | dB |
| Wiper Resistance | 40 Ω at the ends of the resistor array | Ω |
| Operating Supply Voltage | 2.3 V to 5.5 V | V |
| Logic Supply Voltage | 1.8 V to 5.5 V | V |
| Operating Temperature Range | -40°C to +125°C | °C |
| Package Type | 16-Lead TSSOP | - |
| Interface | SPI | - |
Key Features
- Linear gain setting mode allowing independent programming of the resistance between the digital potentiometer terminals.
- Single- and dual-supply operation.
- Low resistor tolerance and low nominal temperature coefficient.
- High bandwidth of 3 MHz and low total harmonic distortion (THD) for optimal performance with AC signals.
- Fast start-up time of less than 75 μs.
- Non-volatile memory to store wiper settings.
- SPI-compatible digital interface for setting and reading wiper register and EEPROM contents.
- Low wiper resistance of 40 Ω at the ends of the resistor array.
- Independent logic supply voltage from 1.8 V to 5.5 V.
Applications
- Portable electronics level adjustment.
- LCD panel brightness and contrast controls.
- Programmable filters, delays, and time constants.
- Programmable power supplies.
- Automotive applications due to its extended industrial temperature range.
Q & A
- What is the number of positions available in the AD5142BRUZ10-RL7?
The AD5142BRUZ10-RL7 has 256 positions.
- What are the resistance options for the AD5142BRUZ10-RL7?
The AD5142BRUZ10-RL7 is available with a 10 kΩ resistance option.
- What is the typical temperature coefficient of the AD5142BRUZ10-RL7?
The typical temperature coefficient is 35 ppm/°C.
- What is the bandwidth of the AD5142BRUZ10-RL7?
The bandwidth is 3 MHz typical.
- What is the total harmonic distortion (THD) of the AD5142BRUZ10-RL7?
The THD is -80 dB typical.
- What is the wiper resistance of the AD5142BRUZ10-RL7?
The wiper resistance is 40 Ω at the ends of the resistor array.
- What is the operating supply voltage range for the AD5142BRUZ10-RL7?
The operating supply voltage range is from 2.3 V to 5.5 V.
- What is the logic supply voltage range for the AD5142BRUZ10-RL7?
The logic supply voltage range is from 1.8 V to 5.5 V.
- What is the operating temperature range for the AD5142BRUZ10-RL7?
The operating temperature range is from -40°C to +125°C.
- What type of interface does the AD5142BRUZ10-RL7 use?
The AD5142BRUZ10-RL7 uses an SPI-compatible digital interface.
