Maxim > Products > Analog Switches and Multiplexers > MAX4991, MAX4992, MAX4993, ...

MAX4991, MAX4992, MAX4993, MAX4994

Low RON, Dual-SPDT/Single-DPDT Analog Switches with Slow Turn-On Time

Reduces Clicks and Pops Without Requiring Additional Components
 Overview   Design Resources   Ordering Info   Related Products   All   

Status Explanations for product status codes

Part Number Status
MAX4991 Future Product
MAX4992 Active: In Production. See Ordering Information for details.
MAX4993 Active: In Production. See Ordering Information for details.
MAX4994 Future Product


The MAX4991–MAX4994 low on-resistance analog switches operate from a single +1.8V to +5.5V supply. The MAX4991/MAX4993 feature a slow turn-on time to reduce clicks and pops due to coupling capacitors and audio amplifiers with a DC output bias. This feature provides click-and-pop reduction without adding additional parts for existing architectures.

The MAX4991/MAX4992 are dual single-pole/double-throw (SPDT) switches, while the MAX4993/MAX4994 are double-pole/double-throw (DPDT) switches. The MAX4993/MAX4994 feature an active-low enable input (active-low EN) that sets all the channels to high impedance and reduces supply current when driven high. These devices have 0.3Ω on-resistance and 0.004% THD+N to route high fidelity audio signals.

The MAX4991–MAX4994 are available in space-saving 10-pin UTQFN (1.4mm x 1.8mm) package, and are specified for operation over the -40°C to +85°C extended temperature range.

Data Sheet

Download this datasheet in PDF formatDownload Rev 1 (PDF, 160kB)
Send this datasheet to any email addressEmail

My Maxim: Not Logged In
By logging in to My Maxim you can subscribe to alerts for this data sheet.

Login | Register
An evaluation board is available: MAX4993EVKIT

Key Features

  • Slow Turn-On for Click-and-Pop Reduction Without Additional Parts
  • Low 0.3Ω On-Resistance
  • Low RON Flatness (1mΩ)
  • Low THD+N: 0.004%
  • +1.8V to +5.5V Single-Supply Operation
  • 1.2µA (typ) Supply Current
  • Space-Saving Packages
    • 10-Pin UTQFN (1.4mm x 1.8mm x 0.55mm)


  • Audio Signal Routing
  • Cellular Phones
  • Portable MP3 Players
  • Speaker Headset Source Switching

Key Specifications:

Switches and Multiplexers (Low Voltage)
Part Number Protocol Config. Channels VSUPPLY (Single)
VSUPPLY (Single)
Dynamic Range (max)
min max min max max max typ max min max See Notes
MAX4992  Audio
2 1.8 5.5 0 5.5 5.5 0.5 0.001 100 150000 2000 $0.77 @1k
630000 $4.17 @1k
See All Switches and Multiplexers (Low Voltage) (184)

Pricing Notes:

This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.


MAX4991, MAX4992, MAX4993, MAX4994: Typical Application Circuit
Typical Application Circuit

More Information

Topmark Coding MAX4992
Topmark Coding MAX4993

Didn't Find What You Need?

Information Index

Document Ref.: 19-4150 Rev 1; 2009-07-23
This page last modified: 2011-02-16