MAX4621:Dual, 5Ω Analog Switches

The MAX4621/MAX4622/MAX4623 are precision, dual, high-speed analog switches. The single-pole/single-throw (SPST) MAX4621 and double-pole/single-throw (DPST) MAX4623 dual switches are normally open (NO). The single-pole/double-throw (SPDT) MAX4622 has two normally closed (NC) and two NO poles. All three parts offer low 5Ω on-resistance guaranteed to match to within 0.5Ω between channels and to remain flat over the full analog signal range (Δ0.5Ω max). They also offer low leakage (<500pA at +25°C, <5nA at +85°C) and fast switching times (turn-on time <250ns, turn-off time <200ns). These analog switches are ideal in low-distortion applications and are the preferred solution over mechanical relays in automatic test equipment or applications where current switching is required. They have low power requirements, use less board space, and are more reliable than mechanical relays. The MAX4621/MAX4622/MAX4623 are pin-compatible replacements for the DG401/DG403/DG405, respectively, offering improved overall performance. These monolithic switches operate from a single positive supply (+4.5V to +36V) or with bipolar supplies (±4.5V to ±18V) while retaining CMOS-logic input compatibility.

Key Features
  • Low On-Resistance: 3Ωs (typ), 5Ωs (max)
  • Guaranteed RON Match Between Channels (0.5 ohm max)
  • Guaranteed Break-Before-Make Operation (MAX4622)
  • Guaranteed Off-Channel Leakage <5nA at +85°C
  • Single-Supply Operation (+4.5V to +36V)
  • Bipolar-Supply Operation (±4.5V to ±18V)
  • TTL/CMOS-Logic Compatible
  • Rail-to-Rail Analog Signal Handling Capability
  • Pin Compatible with DG401/DG403/DG405
MAX4621, MAX4622, MAX4623: Pin Configuration
MAX4621, MAX4622, MAX4623: Pin Configuration
Applications/Uses
  • Audio-Signal Routing
  • Avionics
  • Communication Systems
  • Data Acquisition
  • Military Radios
  • PBX/PABX Systems
  • Reed Relay Replacement
  • Test Equipment
DataSheet
titleDownload file
MAX4621-MAX4623 Data SheetMAX4621-MAX4623.pdf
Parametrics
Part NumberFunctionsConfig.ChannelsNormal PositionVSUPPLY (Dual)
(±V)
VSUPPLY (Dual)
(±V)
RON
(Ω)
IL(OFF)
(nA)
tON
(ns)
tOFF
(ns)
QINJECTION
(pC)
CON
(pF)
COFF
(pF)
Package/PinsBudgetary
Price
minmaxmaxmaxminmaxSee Notes
MAX4621SwitchSPST2Open4.52050.525020048015034PDIP(N)/16
SOIC(N)/16
$3.81 @1k
MAX4622SPDT-PDIP(N)/16
SOIC(N)/16
$2.98 @1k
MAX4623DPSTOpenPDIP(N)/16
SOIC(N)/16
$5.68 @1k
Quality and Environmental Data
Ordering Information
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX4621CPENo Longer AvailableMAX4621CPE+PDIP(N),;16 pin;158.4 mm²0°C to +70°CNo
MAX4621CPE+ActivePDIP(N),;16 pin;158.4 mm²0°C to +70°CLead Free
MAX4621CSENo Longer AvailableMAX4621CSE+SOIC(N),;16 pin;62 mm²0°C to +70°CNo
MAX4621CSE+ActiveSOIC(N),;16 pin;62 mm²0°C to +70°CLead Free
MAX4621CSE+TActiveSOIC(N),;16 pin;62 mm²0°C to +70°CLead Free
MAX4621CSE-TNo Longer AvailableMAX4621CSE+TN.SO;16 pin0°C to +70°CSee data sheet
MAX4621EPENo Longer AvailableMAX4621EPE+PDIP(N),;16 pin;158.4 mm²-40°C to +85°CNo
MAX4621EPE+ActivePDIP(N),;16 pin;158.4 mm²-40°C to +85°CLead Free
MAX4621ESENo Longer AvailableMAX4621ESE+SOIC(N),;16 pin;62 mm²-40°C to +85°CNo
MAX4621ESE+ActiveSOIC(N),;16 pin;62 mm²-40°C to +85°CLead Free
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX4621ESE+TActiveSOIC(N),;16 pin;62 mm²-40°C to +85°CLead Free
MAX4621ESE-TNo Longer AvailableMAX4621ESE+TN.SO;16 pin-40°C to +85°CSee data sheet
MAX4621-MAX4623.pdf MAX4623
Minimizing Total Harmonic Distortion Contributed by Analog Switches in Audio Systems MAX4501
MAX4621.pdf MAX4621
MAX4621-MAX4623.pdf MAX4623