MAX4678:2Ω, Quad, SPST, CMOS Analog Switches

The MAX4677/MAX4678/MAX4679 quad analog switches feature 1.6Ω max on-resistance (RON) when operating from a dual ±5V supply. RON is matched between channels to 0.3Ω max and is flat (0.4Ω max) over the specified signal range. Each switch can handle Rail-to-Rail analog signals. Off-leakage current is 0.1nA at +25°C. These switches are ideal in low-distortion applications and are the preferred solution over mechanical relays in automated test equipment. They have low power requirements, require less board space, and are more reliable than mechanical relays. The MAX4677 has four normally closed (NC) switches, and the MAX4678 has four normally open (NO) switches. The MAX4679 has two NC and two NO switches and features guaranteed break-before-make switching. The MAX4677/MAX4678/MAX4679 operate from either a single +2.7V to +11V or dual ±2.7V to ±5.5V supplies, making them ideal for use in digital card applications and single-ended 75Ω systems. These devices feature a separate logic supply input that operates from +2.7V to V+, allowing independent logic and analog supplies.

Key Features
  • On-Resistance 1.6Ω max
  • On-Resistance Flatness 0.4Ω max
  • On-Resistance Matching 0.3Ω max
  • Dual ±2.7V to ±5.5V or Single +2.7V to +11V Supply Range
  • TTL/CMOS-Logic Compatible
  • Crosstalk -84dB at 1MHz
  • Off-Isolation -65dB at 1MHz
  • -3dB Bandwidth: 66MHz
  • Rail-to-Rail Signal Range
MAX4677, MAX4678, MAX4679: Pin Configuration
MAX4677, MAX4678, MAX4679: Pin Configuration
Applications/Uses
  • ADC Systems
  • Audio-Signal Routing
  • Avionics
  • Communication Systems
  • Data Acquisition
  • PBX/PABX Systems
  • Reed Relay Replacement
  • Test Equipment
DataSheet
titleDownload file
MAX4677-MAX4679 Data SheetMAX4677-MAX4679.pdf
Parametrics
Part NumberConfig.ChannelsNormal PositionVSUPPLY (Single)
(V)
VSUPPLY (Single)
(V)
VSUPPLY (Dual)
(±V)
VSUPPLY (Dual)
(±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
minmaxminmaxminmaxmaxmaxtypmaxmaxminmaxSee Notes
MAX4677SPST4Closed2.7112.75.5-5.511111.60.20.46613501508535085PDIP(N)/16
TSSOP/16
$3.76 @1k
MAX4678OpenPDIP(N)/16
TSSOP/16
$3.35 @1k
MAX4679Open/ClosedPDIP(N)/16
TSSOP/16
$3.35 @1k
Quality and Environmental Data
Related Products
  • MAX391:Precision, Quad, SPST Analog Switches
Ordering Information
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX4678EPENo Longer AvailableMAX4678EPE+PDIP(N),;16 pin;158.4 mm²-40°C to +85°CNo
MAX4678EPE+ActivePDIP(N),;16 pin;158.4 mm²-40°C to +85°CLead Free
MAX4678EUENo Longer AvailableMAX4678EUE+TSSOP,;16 pin;33.4 mm²-40°C to +85°CNo
MAX4678EUE+ActiveTSSOP,;16 pin;33.4 mm²-40°C to +85°CLead Free
MAX4678EUE+TActiveTSSOP,;16 pin;33.4 mm²-40°C to +85°CLead Free
MAX4678EUE-TNo Longer AvailableMAX4678EUE+TTSSOP,;16 pin;33.4 mm²-40°C to +85°CNo
MAX4677-MAX4679.pdf MAX4679
MAX4678.pdf MAX4678
MAX4677-MAX4679.pdf MAX4679