MAX4545:Quad/Dual, Low-Voltage, Bidirectional RF Video Switches

The MAX4545/MAX4546/MAX4547 are low-voltage T-switches designed for switching RF and video signals from DC to 300MHz in 50Ω and 75Ω systems. The MAX4545 contains four normally open single-pole/single-throw (SPST) switches. The MAX4546 contains two dual SPST switches (one normally open, one normally closed.) The MAX4547 contains two single-pole/double-throw (SPDT) switches. Each switch is constructed in a "T"configuration, ensuring excellent high-frequency off isolation and crosstalk of -80dB at 10MHz. They can handle rail-to-rail analog signals in either direction. On-resistance (20Ω max) is matched between switches to 1Ω max and is flat (0.5Ω max) over the specified signal range, using ±5V supplies. The off leakage current is less than 5nA at +25°C and 50nA at +85°C. These CMOS switches can operate with dual power supplies ranging from ±2.7V to ±6V or a single supply between +2.7V and +12V. All digital inputs have 0.8V/2.4V logic thresholds, ensuring both TTL- and CMOS-logic compatibility when using ±5V or a single +5V supply.

Key Features
  • Low 50Ω Insertion Loss: -1dB at 100MHz
  • High 50Ω Off Isolation: -80dB at 10MHz
  • Low 50Ω Crosstalk: -80dB at 10MHz
  • DC to 300MHz -3dB Signal Bandwidth
  • 20Ω Signal Paths with ±5V Supplies
  • 1Ω Signal-Path Matching with ±5V Supplies
  • 0.5Ω Signal-Path Flatness with ±5V Supplies
  • ±2.7V to ±6V Dual Supplies
  • +2.7V to +12V Single Supply
  • Low Power Consumption: < 1µW
  • Rail-to-Rail Bidirectional Signal Handling
  • Pin Compatible with Industry-Standard DG540, DG542, DG643
  • > 2kV ESD Protection per Method 3015.7
  • TTL/CMOS-Compatible Inputs with Single +5V or ±5V
MAX4545, MAX4546, MAX4547: Pin Configuration
MAX4545, MAX4546, MAX4547: Pin Configuration
Applications/Uses
  • Automated Test Equipment (ATE)
  • High-Speed Data Acquisition
  • Networking
  • RF Switching
  • Test Equipment
  • Video Signal Routing
DataSheet
titleDownload file
MAX4545-MAX4547 Data SheetMAX4545-MAX4547.pdf
Parametrics
Part NumberFunctionsConfig.RON
(Ω)
InterfaceILEAK(OFF)
(nA)
tON
(ns)
Off Iso.
(dB)
Crosstalk
(dB)
VSUPPLY
(V)
VSUPPLY (Dual)
(±V)
Package/PinsBudgetary
Price
maxmaxmin@ Freq.@ Freq.DualSee Notes
MAX4545Switch4 x SPST NO20Parallel5150-80@10MHz-88@10MHz2.7 to 12.02.7 to 6PDIP(N)/20
PLCC/20
SOIC(W)/20
SSOP/20
$2.93 @1k
MAX4546Switch2 x SPST NO/NC-80@10MHz-80@10MHzPDIP(N)/16
QSOP/16
SOIC(N)/16
MAX4547Mux
Switch
2 x 2-to-1
2 x SPDT
-82@10MHz-84@10MHzPDIP(N)/16
QSOP/16
SOIC(N)/16
Quality and Environmental Data
Ordering Information
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX4545C/DNo Longer AvailableDICE SALES,;NA pin;DICE;0°C to +70°CSee data sheet
MAX4545CAPNo Longer AvailableMAX4545CAP+SSOP;20 pin0°C to +70°CSee data sheet
MAX4545CAP+ActiveSSOP,;20 pin;57.9 mm²0°C to +70°CLead Free
MAX4545CAP+TActiveSSOP,;20 pin;57.9 mm²0°C to +70°CLead Free
MAX4545CAP-TNo Longer AvailableMAX4545CAP+TSSOP;20 pin0°C to +70°CSee data sheet
MAX4545CPPNo Longer AvailableMAX4545CPP+PDIP(N),;20 pin;219.2 mm²0°C to +70°CNo
MAX4545CPP+ActivePDIP(N),;20 pin;219.2 mm²0°C to +70°CLead Free
MAX4545CQPNo Longer AvailableSee data sheet
MAX4545CWPNo Longer AvailableMAX4545CWP+SOIC(W),;20 pin;138.5 mm²0°C to +70°CNo
MAX4545CWP+ActiveSOIC(W),;20 pin;138.5 mm²0°C to +70°CLead Free
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX4545CWP+TActiveSOIC(W),;20 pin;138.5 mm²0°C to +70°CLead Free
MAX4545CWP-TNo Longer AvailableMAX4545CWP+TSOIC(W),;20 pin;138.5 mm²0°C to +70°CNo
MAX4545EAPNo Longer AvailableMAX4545EAP+SSOP;20 pin-40°C to +85°CSee data sheet
MAX4545EAP+ActiveSSOP,;20 pin;57.9 mm²-40°C to +85°CLead Free
MAX4545EAP+TActiveSSOP,;20 pin;57.9 mm²-40°C to +85°CLead Free
MAX4545EAP-TNo Longer AvailableMAX4545EAP+TSSOP;20 pin-40°C to +85°CSee data sheet
MAX4545EAP/GG8ActiveSSOP;-40°C to +85°CSee data sheet
MAX4545EAP/GG8-TNo Longer AvailableMAX4545EAP+SSOP;-40°C to +85°CSee data sheet
MAX4545EPPNo Longer AvailableMAX4545EPP+PDIP(N),;20 pin;219.2 mm²-40°C to +85°CNo
MAX4545EPP+ActivePDIP(N),;20 pin;219.2 mm²-40°C to +85°CLead Free
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX4545EQPNo Longer AvailablePLCC,;20 pin;100.6 mm²-40°C to +85°CNo
MAX4545EQP-TNo Longer AvailablePLCC;20 pin-40°C to +85°CSee data sheet
MAX4545EWPNo Longer AvailableMAX4545EWP+SOIC(W),;20 pin;138.5 mm²-40°C to +85°CNo
MAX4545EWP+ActiveSOIC(W),;20 pin;138.5 mm²-40°C to +85°CLead Free
MAX4545EWP+TActiveSOIC(W),;20 pin;138.5 mm²-40°C to +85°CLead Free
MAX4545EWP-TNo Longer AvailableMAX4545EWP+TW.SO;20 pin-40°C to +85°CSee data sheet
MAX4545-MAX4547.pdf MAX4547
MAX4545.pdf MAX4545