Overview
The AD5142ABCPZ10-RL7 is a dual-channel, 256-position, I²C, nonvolatile digital potentiometer produced by Analog Devices Inc. This component is designed to operate as a true variable resistor for analog signals, offering high precision and reliability. It is available in a compact 16-lead LFCSP (3mm x 3mm) package, making it suitable for a variety of applications where space is limited.
The device features a versatile I²C-compatible serial interface, allowing for fast mode operation up to 400 kbps and supporting up to nine different IC addresses. This makes it highly versatile for various adjustment and control applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resistance Options | 10 kΩ, 100 kΩ | - |
| Resistor Tolerance | ±8% maximum | - |
| Wiper Current | ±6 mA | mA |
| Temperature Coefficient | 35 ppm/°C | ppm/°C |
| Bandwidth | 3 MHz | MHz |
| Start-up Time | < 75 μs | μs |
| Logic Supply Voltage | 1.8 V to 5.5 V | V |
| Operating Temperature | −40°C to +125°C | °C |
| Package Type | 16-Lead LFCSP (3mm x 3mm) | - |
Key Features
- Nonvolatile Solution: The AD5142ABCPZ10-RL7 provides a nonvolatile solution for 256-position adjustment applications, ensuring that settings are retained even when power is turned off.
- Low Resistor Tolerance: Guaranteed low resistor tolerance errors of ±8% and a low nominal temperature coefficient of 35 ppm/°C, simplifying open-loop applications and tolerance matching.
- Linear Gain Setting Mode: Allows independent programming of the resistance between the digital potentiometer terminals, enabling accurate resistor matching.
- High Bandwidth and Low THD: Ensures optimal performance for AC signals, making it suitable for filter design and other high-frequency applications.
- Fast Start-up Time: Less than 75 μs, ensuring quick initialization and operation.
- Single- and Dual-Supply Operation: Supports a wide range of supply voltages, including independent logic supply from 1.8 V to 5.5 V.
- Compact Package: Available in a 16-lead LFCSP (3mm x 3mm) package, ideal for space-constrained designs.
Applications
- Portable Electronics Level Adjustment: Suitable for adjusting levels in portable electronic devices.
- LCD Panel Brightness and Contrast Controls: Can be used to control the brightness and contrast of LCD panels.
- Programmable Filters, Delays, Time Constants: Ideal for applications requiring programmable filters and time constants.
- Programmable Power Supplies: Can be used in programmable power supply designs to adjust output voltages and currents.
Q & A
- What is the resistance range of the AD5142ABCPZ10-RL7?
The AD5142ABCPZ10-RL7 offers resistance options of 10 kΩ and 100 kΩ.
- What is the maximum resistor tolerance of the AD5142ABCPZ10-RL7?
The maximum resistor tolerance is ±8%.
- What is the wiper current rating of the AD5142ABCPZ10-RL7?
The wiper current rating is ±6 mA.
- What is the temperature coefficient of the AD5142ABCPZ10-RL7?
The temperature coefficient is 35 ppm/°C.
- What is the bandwidth of the AD5142ABCPZ10-RL7?
The bandwidth is 3 MHz.
- How long does the AD5142ABCPZ10-RL7 take to start up?
The start-up time is less than 75 μs.
- What is the operating temperature range of the AD5142ABCPZ10-RL7?
The operating temperature range is −40°C to +125°C.
- What package types are available for the AD5142ABCPZ10-RL7?
The device is available in a 16-lead LFCSP (3mm x 3mm) package.
- Is the AD5142ABCPZ10-RL7 suitable for automotive applications?
Yes, it is qualified for automotive applications.
- What interface does the AD5142ABCPZ10-RL7 use for communication?
The device uses an I²C-compatible serial interface.
