Overview
The AD5122BRUZ10, manufactured by Analog Devices Inc., is a digital potentiometer designed for precision and versatility in various electronic applications. This device offers a nonvolatile solution for 128-position adjustment, making it suitable for applications requiring accurate and stable resistance settings. The AD5122BRUZ10 features a digital control mechanism that simulates the behavior of traditional analog potentiometers or variable resistors, but with the advantages of higher accuracy, longer lifespan, and stronger anti-interference capabilities compared to mechanical potentiometers.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resistance Options | 10 kΩ, 100 kΩ | |
| Resistor Tolerance | ±8% | |
| Wiper Current | ±6 mA | |
| Temperature Coefficient | 35 ppm/°C | |
| Bandwidth | 3 MHz (RAB = 10 kΩ), 0.43 MHz (RAB = 100 kΩ) | |
| Total Harmonic Distortion (THD) | -80 dB (RAB = 10 kΩ), -90 dB (RAB = 100 kΩ) | |
| Operating Temperature | -40°C to +125°C | |
| Package Type | 16-Lead TSSOP | |
| Logic Supply Voltage | 1.8 V to 5.5 V | |
| Interface | SPI-compatible |
Key Features
- Programmable Resistance: The AD5122BRUZ10 allows for precise control over resistance values through an SPI-compatible digital interface, enabling 128-position adjustments.
- Low Resistor Tolerance: Guaranteed low resistor tolerance errors of ±8%, ensuring high accuracy in applications.
- High Bandwidth and Low THD: Suitable for ac signal applications, including filter design, with a bandwidth of up to 3 MHz and THD as low as -80 dB.
- Nonvolatile Memory: EEPROM memory for storing wiper settings and user-defined information, ensuring that settings are retained even when power is off.
- Wide Operating Temperature Range: Operates over an extended industrial temperature range of -40°C to +125°C.
- Independent Logic Supply: Supports logic supply voltages from 1.8 V to 5.5 V, allowing for flexible integration into various systems.
Applications
- Audio Equipment: Used for electronic volume control and tone adjustments in audio systems, including amplifiers and equalizers.
- Consumer Electronics: Employed in household appliances such as televisions, speakers, air conditioners, and refrigerators to adjust parameters like volume, brightness, and temperature.
- Motor Control: Utilized in motor control circuits for adjusting speed, torque, and other control parameters.
- Power Management: Used in power management applications, such as power adapters and chargers, to adjust output voltage and current.
- Programmable Filters and Delays: Suitable for programmable filters, delays, and time constants in various electronic systems.
- LCD Panel Controls: Used for brightness and contrast adjustments in LCD panels.
Q & A
- What is the AD5122BRUZ10 used for?
The AD5122BRUZ10 is a digital potentiometer used for precise resistance adjustments in various electronic applications, including audio equipment, consumer electronics, motor control, and power management.
- What are the resistance options for the AD5122BRUZ10?
The AD5122BRUZ10 offers resistance options of 10 kΩ and 100 kΩ.
- What is the temperature coefficient of the AD5122BRUZ10?
The temperature coefficient of the AD5122BRUZ10 is 35 ppm/°C.
- What is the bandwidth of the AD5122BRUZ10?
The bandwidth of the AD5122BRUZ10 is 3 MHz for a 10 kΩ resistance and 0.43 MHz for a 100 kΩ resistance.
- What interface does the AD5122BRUZ10 use?
The AD5122BRUZ10 uses an SPI-compatible digital interface.
- What is the operating temperature range of the AD5122BRUZ10?
The operating temperature range of the AD5122BRUZ10 is -40°C to +125°C.
- Does the AD5122BRUZ10 have nonvolatile memory?
Yes, the AD5122BRUZ10 has EEPROM memory for storing wiper settings and user-defined information.
- What is the logic supply voltage range for the AD5122BRUZ10?
The logic supply voltage range for the AD5122BRUZ10 is from 1.8 V to 5.5 V.
- What package types are available for the AD5122BRUZ10?
The AD5122BRUZ10 is available in a 16-Lead TSSOP package.
- Is the AD5122BRUZ10 suitable for automotive applications?
Yes, the AD5122BRUZ10 is qualified for automotive applications.
