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ISL84581

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Low-Voltage, Single and Dual Supply, 8 Multiplexer to 1 Multiplexer

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Features

  • Fully Specified at 3.3V, 5V, ±5V, and 12V Supplies for 10% Tolerances
  • ON-Resistance (rON) Max, VS = ±4.5V 50Ω
  • ON-Resistance (rON) Max, VS = +3V 155Ω
  • rON Matching Between Channels, VS = ±5V <2Ω
  • Low Charge Injection, VS = ±5V 1pC (Max)
  • Single Supply Operation +2V to +12V
  • Dual Supply Operation ±2V to ±6V
  • Fast Switching Action (VS = +5V)
  • tON 38ns
  • tOFF 19ns
  • Guaranteed Max Off-leakage 2.5nA
  • Guaranteed Break-Before-Make
  • TTL, CMOS Compatible
  • Pb-Free (RoHS Compliant)
Find Other Products in Analog Signal Switches
ISL84581 Functional Diagram
ISL84581 Functional Diagram

Description

The Intersil ISL84581 device contains precision, bidirectional, analog switches configured as an 8-to-1 multiplexer/demultiplexer. It was designed to operate from a single +2V to +12V single supply or from dual ±2V to ±6V supplies. The device has an inhibit pin to simultaneously open all signal paths. The ISL84581 has an ON-resistance of 39Ω with a dual ±5V supply and 125Ω with a single +3. 3V supply. Each switch can handle rail-to-rail analog signals. The off-leakage current is only 0. 02nA at +25°C or 0. 2nA at +85°C. All digital inputs have 0. 8V to 2. 4V logic thresholds, ensuring TTL/CMOS logic compatibility when using a single 3. 3V or +5V supply or dual ±5V supplies. The ISL84581 is a single 8-to-1 multiplexer device.

Parameters

AttributesValue
Switch or MUXMUX
Channels (#)8
Configuration1 x 8:1
TON (ns)38
TOFF (ns)19
Charge Injection (pC)1
Drain Capacitance (pF)26
Leakage (nA)2.5
RDS (ON) (Ohms)39
Source Cap (pf)3
Vcc (V)2 to 12, ±2 to ±6
VCC (Single) (V)2 - 12
IS (mA)0.007
Qualification LevelStandard

Package Options

Pkg. TypePkg. Dimensions (mm)Lead Count (#)Pitch (mm)
QSOP4.9 x 3.9 x 1.47160.6
TSSOP5.0 x 4.4 x 0.00160.7

Applications

  • Battery Powered, Handheld, and Portable Equipment
  • Communications Systems Radios Telecom Infrastructure ADSL, VDSL Modems
  • Test Equipment Medical Ultrasound Magnetic Resonance Image CT and PET Scanners (MRI) ATE Electrocardiograph
  • Audio and Video Signal Routing
  • Various Circuits +3V/+5V DACs and ADCs Sample and Hold Circuits Operational Amplifier Gain Switching Networks High Frequency Analog Switching High Speed Multiplexing Integrator Reset Circuits
Part NumberStatusSamplesStockRoHSPackageBudgetary Price (USD)Lead Count (#)Carrier TypeMoisture Sensitivity Level (MSL)Pitch (mm)Pkg. Dimensions (mm)Pb (Lead) FreePb Free CategoryTemp. Range (°C)Country of AssemblyCountry of Wafer Fabrication
ISL84581IAZActiveAvailableIn StockRoHS:EN
SOIC1ku | $2.1216#Tube20.6mm4.9 x 3.9 x 1.47YesPb-Free 100% Matte Tin Plate w/Anneal-e3-40 to +85°CMALAYSIAUSA
ISL84581IAZ-TActiveN/AIn StockRoHS:EN
SOIC1ku | $2.1216#Reel20.6mm4.9 x 3.9 x 1.47YesPb-Free 100% Matte Tin Plate w/Anneal-e3-40 to +85°CMALAYSIAUSA
ISL84581IVZActiveAvailableIn StockRoHS:EN
TSSOP1ku | $2.0516#Tube10.7mm5.0 x 4.4 x 0.00YesPb-Free 100% Matte Tin Plate w/Anneal-e3-40 to +85°CCHINA, MALAYSIAUSA
ISL84581IVZ-TActiveN/AOut of StockRoHS:EN
TSSOP1ku | $2.0516#Reel10.7mm5.0 x 4.4 x 0.00YesPb-Free 100% Matte Tin Plate w/Anneal-e3-40 to +85°CCHINA, MALAYSIAUSA
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    Recommended Documents (1)

  1. Datasheet
    ISL84581 Datasheet
    RECOMMENDED
    PDF 877 KB isl84581 Mar 24, 2003

    Datasheets (1)

  1. Datasheet
    ISL84581 Datasheet
    RECOMMENDED
    PDF 877 KB isl84581 Mar 24, 2003

    Application Notes & White Papers (4)

  1. Application Note
    AN535: Design Considerations for a Data Acquisition System (DAS)
    PDF 843 KB an535 Jun 05, 2002
    AI-generated Summary: A Data Acquisition System (DAS) requires careful design of signal conditioning, transducer selection, and signal transmission to ensure high accuracy. Signal conditioning includes multiplexing, amplification, filtering, and calibration, ideally performed near the transducer. Transducers convert physical variables to electrical signals, often voltage, with low source resistance preferred. Signal paths can be single-ended or differential; differential paths better reject common mode noise, especially for low-level signals. Shielded twisted pairs and balanced lines reduce interference. Filters, typically Butterworth low-pass, prevent aliasing and maintain signal integrity.
  2. Application Note
    AN557: Recommended Test Procedures for Analog Switches
    PDF 468 KB an557 May 24, 2002
    AI-generated Summary: The document details recommended test procedures for analog switches, focusing on key parameters such as crosstalk, break-before-make delay, and settling time. It explains how to measure crosstalk using decibel ratios and outlines the importance of break-before-make delay to prevent simultaneous switch closure. Settling time is measured to ensure output stability after input changes. It also covers input thresholds, leakage currents, power dissipation, and various switch capacitances, providing test circuit examples and conditions for accurate measurement.
  3. Application Note
    AN1034: CMOS Analog Multiplexers and Switches, Applications Considerations
    PDF 300 KB an1034 Nov 20, 1998
    AI-generated Summary: The document discusses the use of analog switches and multiplexers in wideband applications, highlighting the HI-524 monolithic wideband CMOS multiplexer and the HA-2541 amplifier. It emphasizes the importance of unity gain stability, fast settling time, and output swing for driving coaxial cables. The HI-524 includes feedback resistance to minimize offset voltage. Proper layout is crucial to avoid feedthrough and excessive capacitance. The document also outlines Renesas Electronics' disclaimers on product use, quality grades, safety responsibilities, environmental compliance, and legal restrictions.
  4. Application Note
    AN520: CMOS Analog Multiplexers and Switches; Specifications and Application Considerations
    PDF 270 KB an520 Nov 20, 1998
    AI-generated Summary: Adding a pull-up resistor from CMOS inputs to +5V is essential when interfacing TTL outputs with CMOS inputs to improve interchangeability, noise immunity, compatibility, and reliability. A 2kΩ resistor is generally sufficient. CMOS inputs are compatible with CMOS logic at 5V to 15V without pull-ups. Mechanical switches require pull-up or pull-down resistors to prevent noise and contact issues. Renesas disclaims liability for misuse and emphasizes adherence to product specifications and legal regulations.

    Product Notices (PCN, EOL, etc) (2)

  1. Product Change Notice
    PCN21006 - Alternate assembly facility of the listed Renesas TSSOP packaged products
    PDF 131 KB PCN21006 Jan 25, 2021
  2. Product Change Notice
    PCN12094 - Alternate Manufacturing Site for Assembly of the Listed Intersil Packaged Products - Amkor Technology, Philippines (ATP)
    PDF 98 KB PCN12094 Dec 19, 2012

    Marketing Collateral (1)

  1. Brochure
    Analog ICs Brochure
    PDF 5.43 MB R07CL0009EJ0800 Rev.8.00 日本語 Nov 10, 2025
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