MAX4992:Low RON, Dual-SPDT/Single-DPDT Analog Switches with Slow Turn-On Time

Reduces Clicks and Pops Without Requiring Additional Components

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.

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)
MAX4991, MAX4992, MAX4993, MAX4994: Typical Application Circuit
MAX4991, MAX4992, MAX4993, MAX4994: Typical Application Circuit
Applications/Uses
  • Audio Signal Routing
  • Cellular Phones
  • Portable MP3 Players
  • Speaker Headset Source Switching
DataSheet
titleDownload file
MAX4991-MAX4994 Data SheetMAX4991-MAX4994.pdf
Parametrics
Part NumberProtocolConfig.ChannelsVSUPPLY (Single)
(V)
VSUPPLY (Single)
(V)
VSIGNAL
(V)
VSIGNAL
(V)
Dynamic Range (max)
(V)
RON
(Ω)
RFLAT(ON)
(Ω)
IL(OFF)
(nA)
tON
(ns)
tOFF
(ns)
Package/PinsBudgetary
Price
minmaxminmaxmaxmaxtypmaxminmaxSee Notes
MAX4992Audio2-to-1
SPDT
21.85.505.55.50.50.0011001500002000µDFN/10
UTQFN/10
$0.77 @1k
MAX49932-to-1
DPDT
630000µDFN/10
UTQFN/10
-
Design kits & evaluation modules
Quality and Environmental Data
Ordering Information
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX4992ELB+TNo Longer AvailableµDFN,;10 pin;4.2 mm²-40°C to +85°CLead Free
MAX4992EVB+ActiveUTQFN,;10 pin;2.5 mm²-40°C to +85°CLead Free
MAX4992EVB+TActiveUTQFN,;10 pin;2.5 mm²-40°C to +85°CLead Free
MAX4991-MAX4994.pdf MAX4993
MAX4991-MAX4994_cn.pdf MAX4993
MAX4992.pdf MAX4992
MAX4991-MAX4994_cn.pdf MAX4992