MAX394:Low-Voltage, Quad, SPDT, CMOS Analog Switch—Replaces MAX333A

The MAX394 is a precision, low-voltage, quad, single-pole/double-throw (SPDT) analog switch. The four independent switches operate with bipolar supplies ranging from ±2.7V to ±8V, or with a single supply of +2.7V to +15V. The MAX394 offers low on-resistance (less than 35Ω), guaranteed to match within 2Ω between channels and to remain flat over the analog signal range (Δ4Ω max). It also offers break-before-make switching (10ns typical), with turn-off times less than 75ns and turn-on times less than 130ns. The MAX394 is ideal for portable operation since quiescent current runs less than 1µA with all inputs high or low. This monolithic, quad switch is fabricated with Maxim's low voltage silicon-gate process. Design improvements guarantee extremely low charge injection (10pC), low power consumption (10µW), and electrostatic discharge (ESD) greater than 2000V. Logic inputs are TTL and CMOS compatible and guaranteed over a +0.8V to +2.4V range for supply voltages up to +8V. When supplies exceed +8V, the inputs are typically +0.8V to +4V. Logic inputs and switched analog signals can range anywhere between the supply voltages without damage.

Key Features
  • Low On-Resistance, < 17Ω Typical (35Ω max)
  • Guaranteed Matched On-Resistance Between Channels, < 2Ω
  • Guaranteed Flat On-Resistance over Analog Signal Range, Δ4Ω Max
  • Guaranteed Charge Injection < 10pC
  • Guaranteed Off-Channel Leakage < 2.5nA at +85°C
  • ESD Guaranteed > 2000V per Method 3015.7
  • Single-Supply Operation (+2.7V to +15V)
  • Bipolar-Supply Operation (±2.7V to ±8V)
  • TTL/CMOS-Logic Compatibility
  • Rail-to-Rail Analog Signal Handling Capability
  • Pin Compatible with MAX333, MAX333A
MAX394: Typical Operating Circuit
MAX394: Typical Operating Circuit
Applications/Uses
  • Audio Signal Routing
  • Communication Systems
  • Heads-Up Displays
  • PBX, PABX
  • Portable Instrumentation
  • Set-Top Boxes
  • Test Equipment
DataSheet
titleDownload file
MAX394 Data SheetMAX394.pdf
Parametrics
Part NumberConfig.ChannelsVSUPPLY (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)
IL(OFF)
(nA)
tON
(ns)
tOFF
(ns)
QINJECTION
(pC)
CON
(pF)
COFF
(pF)
Package/PinsBudgetary
Price
minmaxminmaxminmaxmaxmaxtypmaxmaxminmaxSee Notes
MAX3942-to-1
SPDT
42.7152.78-8151635440.2513075103912CDIP(N)/20
PDIP(N)/20
SOIC(W)/20
SSOP/20
TSSOP/20
$5.26 @1k
Ordering Information
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX394C/DActiveDICE SALES,;NA pin;DICE S;0°C to +70°CSee data sheet
MAX394CAPNo Longer AvailableMAX394CAP+SSOP,;20 pin;57.9 mm²0°C to +70°CNo
MAX394CAP+ActiveSSOP,;20 pin;57.9 mm²0°C to +70°CLead Free
MAX394CAP+TActiveSSOP,;20 pin;57.9 mm²0°C to +70°CLead Free
MAX394CAP-TNo Longer AvailableMAX394CAP+TSSOP;20 pin0°C to +70°CSee data sheet
MAX394CPPNo Longer AvailableMAX394CPP+PDIP(N),;20 pin;219.2 mm²0°C to +70°CNo
MAX394CPP+ActivePDIP(N),;20 pin;219.2 mm²0°C to +70°CLead Free
MAX394CWPNo Longer AvailableMAX394CWP+SOIC(W),;20 pin;138.5 mm²0°C to +70°CNo
MAX394CWP+ActiveSOIC(W),;20 pin;138.5 mm²0°C to +70°CLead Free
MAX394CWP+TActiveSOIC(W),;20 pin;138.5 mm²0°C to +70°CLead Free
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX394CWP-TNo Longer AvailableMAX394CWP+TW.SO;20 pin0°C to +70°CSee data sheet
MAX394EAPNo Longer AvailableMAX394EAP+SSOP,;20 pin;57.9 mm²-40°C to +85°CNo
MAX394EAP+ActiveSSOP,;20 pin;57.9 mm²-40°C to +85°CLead Free
MAX394EAP+TActiveSSOP,;20 pin;57.9 mm²-40°C to +85°CLead Free
MAX394EAP-TNo Longer AvailableMAX394EAP+TSSOP;20 pin-40°C to +85°CSee data sheet
MAX394EPPNo Longer AvailableMAX394EPP+PDIP(N),;20 pin;219.2 mm²-40°C to +85°CNo
MAX394EPP+ActivePDIP(N),;20 pin;219.2 mm²-40°C to +85°CLead Free
MAX394EUPActiveTSSOP,;20 pin;45.2 mm²-40°C to +85°CNo
MAX394EUP+ActiveTSSOP,;20 pin;45.2 mm²-40°C to +85°CLead Free
MAX394EUP+TActiveTSSOP,;20 pin;45.2 mm²-40°C to +85°CLead Free
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX394EUP-TNo Longer AvailableMAX394EUP+TTSSOP;20 pin-40°C to +85°CSee data sheet
MAX394EWPNo Longer AvailableMAX394EWP+SOIC(W),;20 pin;138.5 mm²-40°C to +85°CNo
MAX394EWP+ActiveSOIC(W),;20 pin;138.5 mm²-40°C to +85°CLead Free
MAX394EWP+TActiveSOIC(W),;20 pin;138.5 mm²-40°C to +85°CLead Free
MAX394EWP-TNo Longer AvailableMAX394EWP+TW.SO;20 pin-40°C to +85°CSee data sheet
MAX394MJPNo Longer AvailableCDIP(N),;20 pin;218.9 mm²-55°C to +125°CNo
MAX394MWP/PR+ActiveSOIC(W),;20 pin;138.5 mm²-55°C to +125°CLead Free
MAX394.pdf MAX394
MAX394.pdf MAX394