Overview
The AD5122BRUZ10-RL7 is a dual-channel, 128-/256-position digital potentiometer produced by Analog Devices Inc. This component is designed for precision and reliability, making it suitable for a wide range of applications that require adjustable resistance. The device features nonvolatile memory, allowing settings to be retained even when power is turned off. It communicates via an SPI interface, providing easy integration into various systems.
Key Specifications
| Parameter | Symbol | Test Conditions/Comments | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Resistance Options | RAB | 10 kΩ | 100 kΩ | |||
| Resistor Tolerance | ±8% | |||||
| Wiper Current | IW | RAB = 10 kΩ | -6 | 6 | mA | |
| RAB = 100 kΩ | -1.5 | 1.5 | mA | |||
| Bandwidth | BW | -3 dB, RAB = 10 kΩ | 3 MHz | |||
| -3 dB, RAB = 100 kΩ | 0.43 MHz | |||||
| Total Harmonic Distortion | THD | VDD/VSS = ±2.5 V, VA = 1 V rms, VB = 0 V, f = 1 kHz, RAB = 10 kΩ | -80 dB | |||
| VDD/VSS = ±2.5 V, VA = 1 V rms, VB = 0 V, f = 1 kHz, RAB = 100 kΩ | -90 dB | |||||
| Settling Time | tS | VA = 5 V, VB = 0 V, from zero scale to full scale, ±0.5 LSB error band, RAB = 10 kΩ | 2 µs | |||
| VA = 5 V, VB = 0 V, from zero scale to full scale, ±0.5 LSB error band, RAB = 100 kΩ | 12 µs | |||||
| Temperature Coefficient | (ΔVW/VW)/ΔT | Code = half scale | ±5 ppm/°C |
Key Features
- Dual-channel, 128-/256-position digital potentiometer
- Nonvolatile memory for setting retention
- SPI interface for communication
- Resistance options: 10 kΩ and 100 kΩ
- Resistor tolerance: ±8% maximum
- Low temperature coefficient: ±5 ppm/°C
- Wiper current: ±6 mA (10 kΩ), ±1.5 mA (100 kΩ)
- High bandwidth and low total harmonic distortion (THD) for optimal performance with AC signals
Applications
The AD5122BRUZ10-RL7 is versatile and can be used in various applications, including:
- Audio and video equipment for volume control and signal processing
- Industrial control systems for adjustable gain and offset
- Medical devices requiring precise resistance settings
- Aerospace and defense systems where reliability and precision are critical
- Automotive systems for sensor calibration and signal conditioning
Q & A
- What is the AD5122BRUZ10-RL7?
The AD5122BRUZ10-RL7 is a dual-channel, 128-/256-position digital potentiometer produced by Analog Devices Inc.
- What are the resistance options for the AD5122BRUZ10-RL7?
The device offers resistance options of 10 kΩ and 100 kΩ.
- What is the resistor tolerance of the AD5122BRUZ10-RL7?
The resistor tolerance is ±8% maximum.
- How does the AD5122BRUZ10-RL7 communicate?
The device communicates via an SPI interface.
- What is the wiper current for the 10 kΩ and 100 kΩ resistance options?
The wiper current is ±6 mA for the 10 kΩ option and ±1.5 mA for the 100 kΩ option.
- What is the temperature coefficient of the AD5122BRUZ10-RL7?
The temperature coefficient is ±5 ppm/°C.
- Does the AD5122BRUZ10-RL7 have nonvolatile memory?
Yes, the device features nonvolatile memory for setting retention.
- What are some common applications of the AD5122BRUZ10-RL7?
Common applications include audio and video equipment, industrial control systems, medical devices, aerospace and defense systems, and automotive systems.
- What is the bandwidth of the AD5122BRUZ10-RL7?
The bandwidth is 3 MHz for the 10 kΩ option and 0.43 MHz for the 100 kΩ option.
- What is the total harmonic distortion (THD) of the AD5122BRUZ10-RL7?
The THD is -80 dB for the 10 kΩ option and -90 dB for the 100 kΩ option.
