MAX4855:0.75Ω, Dual SPDT Audio Switch with Integrated Comparators

The MAX4855 dual, single-pole/double-throw (SPDT) switch operates from a single +2V to +5.5V supply and features rail-to-rail signal handling. The MAX4855 has low on-resistance (0.75Ω) with a +3V supply making it ideal for audio switching applications in portable devices. The device also integrates two internal comparators that can be used for headphone detection or mute/send key functions. The MAX4855 is available in the space-saving (3mm x 3mm), 16-pin thin QFN package and operates over the extended temperature range of -40°C to +85°C.

Key Features
  • Audio Signal Routing
  • 0.75Ω On-Resistance
  • 0.18Ω On-Resistance Flatness
  • 0.07Ω Channel-to-Channel Matching
  • Rail-to-Rail Signal Handling
  • 2 Integrated Comparators
  • 1.8V Logic Compatible
  • 2V to 5.5V Supply Range
  • Available in a Space-Saving (3mm x 3mm), 16-Pin TQFN Package
MAX4855: Typical Operating Circuit
MAX4855: Typical Operating Circuit
Applications/Uses
  • Audio-Signal Routing
  • Cell Phones
  • Notebook Computers
  • PDAs and Other Handheld Devices
  • Speaker-Headset Switching
DataSheet
titleDownload file
MAX4855 Data SheetMAX4855.pdf
Parametrics
Part NumberConfig.ChannelsVSUPPLY (Single)
(V)
VSUPPLY (Single)
(V)
VSIGNAL
(V)
VSIGNAL
(V)
Dynamic Range (max)
(V)
RON
(Ω)
RFLAT(ON)
(Ω)
RFLAT(ON)
(Ω)
Bandwidth
(MHz)
IL(OFF)
(nA)
tON
(ns)
tOFF
(ns)
QINJECTION
(pC)
CON
(pF)
COFF
(pF)
Package/PinsBudgetary
Price
minmaxminmaxmaxmaxtypmaxmaxminmaxSee Notes
MAX48552-to-1
SPDT
225.505.55.510.180.275382604017015050TQFN/16$1.57 @1k
Ordering Information
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX4855ETENo Longer AvailableMAX4855ETE+TQFN,;16 pin;9.6 mm²-40°C to +85°CNo
MAX4855ETE+ActiveTQFN,;16 pin;9.6 mm²-40°C to +85°CLead Free
MAX4855ETE+TActiveTQFN,;16 pin;9.6 mm²-40°C to +85°CLead Free
MAX4855ETE-TNo Longer AvailableMAX4855ETE+TQFN;16 pin-40°C to +85°CSee data sheet
MAX4855.pdf MAX4855
MAX4855_cn.pdf MAX4855
MAX4855_cn.pdf MAX4855