MAX4888A:5.0Gbps PCI Express Passive Switches

High-Speed PCI Express Passive Switches Enable Gen II Switching

The MAX4888A/MAX4889A high-speed passive switches route PCI Express® (PCIe) data between two possible destinations. The MAX4888A is a quad single-pole/double-throw (4 x SPDT) switch ideally suited for switching two half lanes of PCIe data between two destinations. The MAX4889A is an octal single-pole/double-throw (8 x SPDT) switch ideal for switching four half lanes of PCIe data between four destinations. The MAX4888A/MAX4889A feature a single digital control input (SEL) to switch signal paths. The MAX4888A/MAX4889A are fully specified to operate from a single +3.0V to +3.6V power supply††. The MAX4888A is available in a 3.5mm x 5.5mm, 28-pin TQFN package. The MAX4889A is available in a 3.5mm x 9.0mm, 42-pin TQFN package. Both devices operate over the -40°C to +85°C temperature range.

Key Features
  • Single +3.0V to +3.6V Power-Supply Voltage
  • Low Same-Pair Skew of 7ps
  • Low 120µA (Max) Quiescent Current
  • Supports PCIe Gen I and Gen II Data Rates
  • Flow-Through Pin Configuration for Ease of Layout
  • Industry-Compatible Pinout
  • Lead-Free Packaging
MAX4888A, MAX4889A: Typical Application Circuit
MAX4888A, MAX4889A: Typical Application Circuit
Applications/Uses
  • Desktop Computers
  • Laptops
  • Servers/Storage Area Networks
DataSheet
titleDownload file
MAX4888A-MAX4889A Data SheetMAX4888A-MAX4889A.pdf
Parametrics
Part NumberProtocolConfig.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)
CON
(pF)
COFF
(pF)
Package/PinsBudgetary
Price
minmaxminmaxmaxmaxtypmaxmaxminmaxSee Notes
MAX4888APCIe2-to-141.63.602.42.48.40.062500010002505021TQFN-CU/28
TQFN/28
$2.46 @1k
MAX4889A8TQFN/42$2.92 @1k
Design kits & evaluation modules
Ordering Information
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX4888AETINo Longer AvailableMAX4888AETI+QFN;-40°C to +85°CSee data sheet
MAX4888AETI+ActiveTQFN,;28 pin;20.2 mm²-40°C to +85°CLead Free
MAX4888AETI+G3UActiveTQFN-CU,;28 pin;QFN;-40°C to +85°CSee data sheet
MAX4888AETI+TActiveTQFN,;28 pin;20.2 mm²-40°C to +85°CLead Free
MAX4888AETI+TG3UActiveTQFN-CU,;28 pin;QFN;-40°C to +85°CSee data sheet
MAX4888AETI-TNo Longer AvailableMAX4888AETI+TQFN;-40°C to +85°CSee data sheet
MAX4888AETI/V+TNRNDTQFN,;28 pin;20.2 mm²-40°C to +125°CLead Free
MAX4888A-MAX4889A.pdf MAX4889A
MAX4888A-MAX4889A_cn.pdf MAX4889A
MAX4888A-MAX4889A_cn.pdf MAX4889A