Overview
The AD8403ARZ10, produced by Analog Devices Inc., is a quad-channel, 256-position digitally controlled variable resistor (VR) device. This component is part of the AD8400/AD8402/AD8403 series, which replaces traditional mechanical potentiometers or variable resistors with digital control. The AD8403 specifically contains four independent variable resistors, each offering a completely programmable value of resistance between the A terminal and the wiper or the B terminal and the wiper. It is available in 24-lead PDIP, SOIC, and TSSOP packages, making it versatile for various applications.
Key Specifications
| Parameter | Symbol | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Nominal Resistance | RAB | TA = 25°C | 8 | 10 | 12 | kΩ |
| Resistance Tempco | ΔRAB/ΔT | VAB = VDD, wiper = no connect | 500 | ppm/°C | ||
| Wiper Resistance | RW | VDD = 5V, IW = VDD/RAB | 50 | 100 | Ω | |
| Power Supply Range | VDD | 2.7 | 5.5 | V | ||
| Supply Current (CMOS) | IDD | VIH = VDD or VIL = 0 V | 0.01 | 5 | μA | |
| Power Dissipation (CMOS) | PDISS | VIH = VDD or VIL = 0 V, VDD = 5.5 V | 27.5 | μW | ||
| Update Data Loading Rate | 10 | MHz |
Key Features
- Quad-channel, 256-position digitally controlled variable resistor (VR) device.
- Available in 1 kΩ, 10 kΩ, 50 kΩ, and 100 kΩ resistance options.
- Power shutdown mode with less than 5 μA current consumption.
- 3-wire, SPI-compatible serial data input.
- 10 MHz update data loading rate.
- Single-supply operation from 2.7 V to 5.5 V.
- Operates over the extended industrial temperature range of −40°C to +125°C.
- Available in 24-lead PDIP, SOIC, and TSSOP packages.
Applications
- Mechanical potentiometer replacement.
- Programmable filters, delays, and time constants.
- Volume control and panning.
- Line impedance matching.
- Power supply adjustment.
- Qualified for automotive applications.
Q & A
- What is the AD8403ARZ10 used for?
The AD8403ARZ10 is used as a digitally controlled variable resistor, replacing traditional mechanical potentiometers or variable resistors in various applications.
- What are the available resistance options for the AD8403ARZ10?
The AD8403ARZ10 is available in 1 kΩ, 10 kΩ, 50 kΩ, and 100 kΩ resistance options.
- What is the power supply range for the AD8403ARZ10?
The AD8403ARZ10 operates from a single supply of 2.7 V to 5.5 V.
- What is the update data loading rate of the AD8403ARZ10?
The update data loading rate is 10 MHz.
- What are the package options for the AD8403ARZ10?
The AD8403ARZ10 is available in 24-lead PDIP, SOIC, and TSSOP packages.
- What is the temperature range for the AD8403ARZ10?
The AD8403ARZ10 operates over the extended industrial temperature range of −40°C to +125°C.
- Is the AD8403ARZ10 suitable for automotive applications?
- What is the power consumption in shutdown mode?
The power consumption in shutdown mode is less than 5 μA.
- What communication protocol does the AD8403ARZ10 use?
The AD8403ARZ10 uses a 3-wire, SPI-compatible serial data input.
- What are some common applications of the AD8403ARZ10?
