AD8403ARZ100-REEL
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Analog Devices Inc. AD8403ARZ100-REEL

Manufacturer No:
AD8403ARZ100-REEL
Manufacturer:
Analog Devices Inc.
Package:
Tape & Reel (TR)
Description:
IC DGT POT 100KOHM 256TAP 24SOIC
Delivery:
Payment:
iso14001
iso45001
iso9001
iso13485

Product Introduction

Overview

The AD8403ARZ100-REEL, produced by Analog Devices Inc., is a 4-channel digital potentiometer designed for precision control applications. This device is part of the AD8400/AD8402/AD8403 series, which provides single-, dual-, or quad-channel, 256-position, digitally controlled variable resistors. 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. This component is housed in a 24-lead SOIC (Wide) package and is suitable for a wide range of applications requiring electronic adjustment functions similar to mechanical potentiometers or variable resistors.

Key Specifications

Parameter Value Unit
Number of Channels 4
Number of Positions 256
Operating Temperature Range -40 to +125 °C
Resistance Values 1 kΩ, 10 kΩ, 50 kΩ, 100 kΩ
Resistance Tempco (typ) 500 ppm/°C
Supply Voltage Range 2.7 to 5.5 V
Wiper Resistance (VDD = 5V) 50 to 100 Ω
Wiper Resistance (VDD = 3V) 200 Ω
Resistor Tolerance (max) 20%
THD (typ) -90 dB
Package Type 24-Lead SOIC (Wide)

Key Features

  • Four independent variable resistors with 256 positions each.
  • Programmable resistance values between the A terminal and the wiper or the B terminal and the wiper.
  • 3-wire, SPI-compatible serial data input with a 10 MHz update data loading rate.
  • Power shutdown feature with less than 5 μA current consumption.
  • Operating temperature range of -40°C to +125°C.
  • Single-supply operation from 2.7 V to 5.5 V.
  • Daisy chaining capability without additional external decoding logic.
  • Reset (RS) pin to force the wiper to midscale.

Applications

  • Mechanical potentiometer replacement.
  • Programmable filters, delays, and time constants.
  • Volume control and panning in audio systems.
  • Line impedance matching.
  • Power supply adjustment.
  • Adjustable power supplies.
  • Automotive applications.

Q & A

  1. What is the AD8403ARZ100-REEL used for?

    The AD8403ARZ100-REEL is a 4-channel digital potentiometer used for precision control applications, such as adjustable power supplies, audio level control, and mechanical potentiometer replacement.

  2. How many variable resistors does the AD8403 contain?

    The AD8403 contains four independent variable resistors.

  3. What are the available resistance values for the AD8403?

    The available resistance values are 1 kΩ, 10 kΩ, 50 kΩ, and 100 kΩ.

  4. What is the operating temperature range of the AD8403?

    The operating temperature range is -40°C to +125°C.

  5. What is the supply voltage range for the AD8403?

    The supply voltage range is from 2.7 V to 5.5 V.

  6. How does the power shutdown feature work?

    The power shutdown feature forces the resistor to an end-to-end open-circuit condition on the A terminal and shorts the wiper to the B terminal, achieving a microwatt power shutdown state.

  7. Can the AD8403 be daisy-chained?
  8. What is the purpose of the reset (RS) pin?

    The reset (RS) pin forces the wiper to midscale by loading 80H into the VR latch.

  9. Is the AD8403 RoHS compliant?
  10. What package types are available for the AD8403?

    The AD8403 is available in 24-lead PDIP, SOIC, and TSSOP packages.

Product Attributes

Taper:Linear
Configuration:Potentiometer
Number of Circuits:4
Number of Taps:256
Resistance (Ohms):100k
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
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Similar Products

Part Number AD8403ARZ100-REEL AD8400ARZ100-REEL AD8402ARZ100-REEL AD8403AR100-REEL AD8403ARU100-REEL AD8403ARUZ100-REEL AD8403ARZ10-REEL
Manufacturer Analog Devices Inc. Analog Devices Inc. Analog Devices Inc. Analog Devices Inc. Analog Devices Inc. Analog Devices Inc. Analog Devices Inc.
Product Status Active Active Active Obsolete Obsolete Active Active
Taper Linear Linear Linear Linear Linear Linear Linear
Configuration Potentiometer Potentiometer Potentiometer Potentiometer Potentiometer Potentiometer Potentiometer
Number of Circuits 4 1 2 4 4 4 4
Number of Taps 256 256 256 256 256 256 256
Resistance (Ohms) 100k 100k 100k 100k 100k 100k 10k
Interface SPI SPI SPI SPI SPI SPI SPI
Memory Type Volatile Volatile Volatile Volatile Volatile Volatile Volatile
Voltage - Supply 2.7V ~ 5.5V 2.7V ~ 5.5V 2.7V ~ 5.5V 2.7V ~ 5.5V 2.7V ~ 5.5V 2.7V ~ 5.5V 2.7V ~ 5.5V
Features Cascade Pin - - Cascade Pin Cascade Pin Cascade Pin Cascade Pin
Tolerance ±30% ±30% ±30% ±30% ±30% ±30% ±20%
Temperature Coefficient (Typ) 500ppm/°C 500ppm/°C 500ppm/°C 500ppm/°C 500ppm/°C 500ppm/°C 500ppm/°C
Mounting Type Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount
Supplier Device Package 24-SOIC 8-SOIC 14-SOIC 24-SOIC 24-TSSOP 24-TSSOP 24-SOIC
Package / Case 24-SOIC (0.295", 7.50mm Width) 8-SOIC (0.154", 3.90mm Width) 14-SOIC (0.154", 3.90mm Width) 24-SOIC (0.295", 7.50mm Width) 24-TSSOP (0.173", 4.40mm Width) 24-TSSOP (0.173", 4.40mm Width) 24-SOIC (0.295", 7.50mm Width)
Operating Temperature -40°C ~ 125°C -40°C ~ 125°C -40°C ~ 125°C -40°C ~ 125°C -40°C ~ 125°C -40°C ~ 125°C -40°C ~ 125°C
Resistance - Wiper (Ohms) (Typ) 200 200 200 200 200 200 200

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