Overview
The AD8403ARUZ50-REEL is a digital potentiometer chip manufactured by Analog Devices Inc. This component offers versatile digital control of resistance values, making it suitable for various applications. It features non-volatile memory, low power consumption, and a wide supply voltage range, making it an ideal choice for designs requiring precise and reliable resistance adjustments.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package/Case | 24-TSSOP (0.173", 4.40mm Width) | |
| Packaging | Tape & Reel (TR) | |
| Number of Circuits | 4 | |
| Number of Taps | 256 | |
| Resistance (Ohms) | 50k | Ω |
| Interface | SPI | |
| Memory Type | Volatile | |
| Voltage Supply | 2.7V ~ 5.5V | V |
| Tolerance | ±30% | % |
| Temperature Coefficient (Typ) | 500 ppm/°C | ppm/°C |
| Mounting Type | Surface Mount | |
| Operating Temperature | -40°C ~ 125°C | °C |
Key Features
- Non-Volatile Memory: Stores and retains resistance settings across power cycles, eliminating the need for recalibration.
- Low Power Consumption: Operates with a supply current of 0.01 μA to 5 μA in CMOS mode and 0.9 mA to 4 mA in TTL mode.
- Wide Supply Voltage Range: Supports single-supply operation from 2.7V to 5.5V.
- SPI-Compatible Serial Interface: Allows for 3-wire serial data input with a 10 MHz update data loading rate.
- High Resolution: 256-position digitally controlled variable resistor with 8-bit resolution.
- Linear Taper: Offers linear resistance adjustment.
- Cascade Pin: Enables cascading of multiple devices for expanded functionality.
Applications
- Audio Equipment: Digitally controls volume levels, tone adjustments, or signal attenuation in amplifiers or mixing consoles.
- Mechanical Potentiometer Replacement: Replaces traditional mechanical potentiometers in various applications.
- Programmable Filters, Delays, and Time Constants: Used in signal processing and control circuits.
- Volume Control and Panning: Suitable for audio mixing and control systems.
- Line Impedance Matching: Adjusts impedance to match different circuit requirements.
- Power Supply Adjustment: Used in power supply circuits for voltage adjustment.
Q & A
- What is the package type of the AD8403ARUZ50-REEL?
The AD8403ARUZ50-REEL comes in a 24-TSSOP (0.173", 4.40mm Width) package.
- How many resistance taps does the AD8403ARUZ50-REEL have?
The AD8403ARUZ50-REEL has 256 resistance taps.
- What is the operating voltage range of the AD8403ARUZ50-REEL?
The operating voltage range is from 2.7V to 5.5V.
- What type of interface does the AD8403ARUZ50-REEL use?
The AD8403ARUZ50-REEL uses an SPI-compatible serial interface.
- Is the memory of the AD8403ARUZ50-REEL volatile or non-volatile?
The memory is volatile, but it can store settings across power cycles.
- What is the typical temperature coefficient of the AD8403ARUZ50-REEL?
The typical temperature coefficient is 500 ppm/°C.
- What are some common applications of the AD8403ARUZ50-REEL?
Common applications include audio equipment, mechanical potentiometer replacement, programmable filters, and power supply adjustment.
- How many independent variable resistors does the AD8403ARUZ50-REEL contain?
The AD8403ARUZ50-REEL contains four independent variable resistors.
- What is the power consumption of the AD8403ARUZ50-REEL in CMOS mode?
The power consumption in CMOS mode is 0.01 μA to 5 μA.
- Can the AD8403ARUZ50-REEL be used in automotive applications?
Yes, it is qualified for automotive applications.
