Overview
The AD8402ARUZ1-REEL is a digital potentiometer produced by Analog Devices Inc. This component is part of the AD8400/AD8402/AD8403 series, which provides digitally controlled variable resistor functionality. The AD8402 specifically contains two independent variable resistors, making it suitable for applications requiring dual-channel control. It operates within a single-supply voltage range of 2.7V to 5.5V and is packaged in a 14-lead TSSOP (Thin Shrink Small Outline Package).
Key Specifications
| Attribute | Value | Unit |
|---|---|---|
| Manufacturer | Analog Devices Inc. | |
| Package | 14-TSSOP | |
| Number of Pins | 14 | |
| Resistance | 1 kΩ | |
| Number of Taps | 256 | |
| Tolerance | ±1% | |
| Temperature Coefficient | 700 ppm/°C | |
| Min Supply Voltage | 2.7V | |
| Max Supply Voltage | 5.5V | |
| Min Operating Temperature | -40°C | |
| Max Operating Temperature | 125°C | |
| Interface | SPI (3-wire, SPI-compatible) | |
| Memory Type | Volatile | |
| Quiescent Current | 10 nA | |
| Max Junction Temperature | 150°C | |
| Packaging | Tape & Reel |
Key Features
- Dual-Channel Control: The AD8402 features two independent variable resistors, allowing for dual-channel control and flexibility in various applications.
- Programmable Resistance: Each variable resistor offers 256 programmable positions, enabling precise control over resistance values.
- SPI Interface: The component uses a 3-wire, SPI-compatible serial interface for easy communication and control.
- Low Power Consumption: The device operates with a quiescent current of 10 nA and a maximum supply current of 900 µA, making it power-efficient.
- Wide Operating Temperature Range: The AD8402 can operate from -40°C to 125°C, making it suitable for a variety of environmental conditions.
- Compact Packaging: The 14-lead TSSOP package is space-saving and suitable for surface mount applications.
Applications
- Mechanical Potentiometer Replacement: The AD8402 can replace mechanical potentiometers in various applications, offering greater reliability and precision.
- Programmable Filters, Delays, and Time Constants: It can be used in circuits requiring adjustable filter characteristics, delay lines, and time constants.
- Volume Control and Panning: Suitable for audio applications where volume and panning need to be digitally controlled.
- Line Impedance Matching: The AD8402 can be used to match impedance in various signal processing circuits.
- Power Supply Adjustment: It can be employed in power supply circuits to adjust output voltages or currents digitally.
Q & A
- What is the resistance value of the AD8402ARUZ1-REEL?
The resistance value of the AD8402ARUZ1-REEL is 1 kΩ.
- How many programmable positions does the AD8402 offer?
The AD8402 offers 256 programmable positions for each variable resistor.
- What is the operating voltage range of the AD8402ARUZ1-REEL?
The operating voltage range is from 2.7V to 5.5V.
- What type of interface does the AD8402 use?
The AD8402 uses a 3-wire, SPI-compatible serial interface.
- What is the maximum operating temperature of the AD8402ARUZ1-REEL?
The maximum operating temperature is 125°C.
- Is the AD8402ARUZ1-REEL RoHS compliant?
Yes, the AD8402ARUZ1-REEL is RoHS compliant.
- What is the quiescent current of the AD8402ARUZ1-REEL?
The quiescent current is 10 nA.
- What is the temperature coefficient of the AD8402ARUZ1-REEL?
The temperature coefficient is 700 ppm/°C.
- What is the packaging type of the AD8402ARUZ1-REEL?
The packaging type is Tape & Reel.
- Can the AD8402ARUZ1-REEL replace mechanical potentiometers?
Yes, the AD8402ARUZ1-REEL can replace mechanical potentiometers in various applications.
