AD8403ARZ50-REEL

$4.34

Description：IC DGTL POT 50KOHM 256TAP 24SOIC
Series：-

SKU:dd22c87fa422 Category: Digital Potentiometers Brand: Analog Devices Inc.

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Product introduction

Product Detailed Parameters

Description：IC DGTL POT 50KOHM 256TAP 24SOIC
Series：-
Mfr：Analog Devices Inc.
Package：Tape & Reel (TR)
Taper：Linear
Configuration：Potentiometer
Number of Circuits：4
Number of Taps：256
Resistance (Ohms)：50k
Interface：SPI
Memory Type：Volatile
Voltage - Supply：2.7V ~ 5.5V
Features：Cascade Pin
Tolerance：±30%
Temperature Coefficient (Typ)：500ppm/°C
Mounting Type：Surface Mount
Supplier Device Package：24-SOIC
Package / Case：24-SOIC (0.295", 7.50mm Width)
Operating Temperature：-40°C ~ 125°C
Resistance - Wiper (Ohms) (Typ)：200
Grade：-
Qualification：-

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AD8403ARZ50-REEL

Overview

The AD8403ARZ50-REEL is a quad-channel, 256-position digital potentiometer from Analog Devices. It features four independent variable resistors with a nominal resistance of 50 kΩ and a linear taper. The device operates on a single supply voltage ranging from 2.7 V to 5.5 V and utilizes an SPI-compatible 3-wire serial interface for data input. Each channel includes a volatile latch to maintain the wiper position. The component is housed in a 24-lead SOIC package and is designed for industrial temperature ranges from -40°C to +125°C.

Feature Summary

Quad-channel configuration with four independent 256-position variable resistors
Nominal resistance of 50 kΩ with ±20% tolerance and 500 ppm/°C temperature coefficient
SPI-compatible 3-wire serial interface with daisy-chain capability via SDO pin
Power shutdown mode reduces current consumption to less than 5 μA

Applications

Mechanical potentiometer replacement
Programmable filters, delays, and time constants
Volume control and panning circuits
Line impedance matching
Power supply adjustment

Procurement Notes

Verify the specific suffix 'REEL' indicates tape-and-reel packaging when sourcing. Confirm the 'Z' suffix denotes RoHS compliance. Ensure the 'AR' designation matches the required industrial temperature range (-40°C to +125°C) and SOIC package type for the target application.

Selection Notes

Select this part for applications requiring four digitally controlled variable resistors with a 50 kΩ value. The 8-bit resolution provides 256 tap positions. Consider the 50 kΩ bandwidth limitations (125 kHz at -3 dB) compared to lower resistance variants if high-frequency signal processing is involved.

Part Context

This component belongs to the AD8400/AD8402/AD8403 family of digital potentiometers. The AD8403 specifically offers a quad-channel layout in 24-lead packages, distinguishing it from the single-channel AD8400 and dual-channel AD8402. The '50' in the model number specifies the 50 kΩ resistance value.