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Precision, Low-Voltage, SPST CMOS Analog Switch

Product Details

Key Features

Parametric specs for Switches and Multiplexers (Low Voltage)
Configuration SPST
# Channels 2
Normal Position Open
VSUPPLY (Single) (V) (min) 2.7
VSUPPLY (Single) (V) (max) 16
VSUPPLY (Dual) (±V) (max) 8
VSIGNAL (V) (min) -8
VSIGNAL (V) (max) 16
Dynamic Range (max) (V) (max) 16
RON (Ω) (max) 35
RFLAT(ON) (Ω) (typ) 4
Package/Pins PDIP/16
SOIC (N)/16
Parametric specs for Switches and Multiplexers (Mid and High Voltage)
Functions Switch
Package/Pins PDIP/16
SOIC (N)/16
Budgetary
Price (See Notes)
5.41
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Simplified Block Diagram

Technical Docs

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Parameters

Parametric specs for Switches and Multiplexers (Low Voltage)
Configuration SPST
# Channels 2
Normal Position Open
VSUPPLY (Single) (V) (min) 2.7
VSUPPLY (Single) (V) (max) 16
VSUPPLY (Dual) (±V) (max) 8
VSIGNAL (V) (min) -8
VSIGNAL (V) (max) 16
Dynamic Range (max) (V) (max) 16
RON (Ω) (max) 35
RFLAT(ON) (Ω) (typ) 4
Package/Pins PDIP/16
SOIC (N)/16
Parametric specs for Switches and Multiplexers (Mid and High Voltage)
Functions Switch
Package/Pins PDIP/16
SOIC (N)/16
Budgetary
Price (See Notes)
5.41

Key Features

  • Single-Supply Operation (+3V to +15V)
  • Bipolar-Supply Operation (±3V to ±8V)
  • Pin-Compatible with DG401/DG403/DG405
  • Low On-Resistance, 20Ω Typical (35Ω Max)
  • Guaranteed Matched On-Resistance Between Channels, < 2Ω
  • Guaranteed Flat On-Resistance over Specified Analog Signal Range, < 4Ω
  • Guaranteed Charge Injection, < 5pC
  • Guaranteed Off-Channel Leakage, < 2.5nA at +85°C
  • TTL/CMOS-Logic Compatible with 3V, 5V, ±3V, and ±5V Supplies
  • Rail-to-Rail Analog Signal Handling Capability

Applications/Uses

  • Audio-Signal Routing
  • Battery-Powered Applications
  • Communication Systems
  • Guidance and Control Systems
  • Heads-Up Displays
  • Military Radios
  • PBX, PABX
  • Sample-and-Hold Circuits
  • Test Equipment

Description

The MAX381/MAX383/MAX385 are precision, low-voltage analog switches. The single-pole single-throw MAX381 and double-pole single-throw MAX385 dual switches are normally open. The single-pole double-throw MAX383 has two normally open and two normally closed poles. All three parts offer low on-resistance (less than 35Ω), guaranteed to match to within 2Ω between channels and to remain flat over the specified analog signal range (4Ω max). They also offer low leakage (less than 250pA at +25°C and less than 2.5nA at +85°C) and fast switching (turn-on time less than 175ns and turn-off time less than 100ns).

The MAX381/MAX383/MAX385 are fabricated with Maxim's low-voltage silicon-gate process for high system accuracy. Design improvements guarantee extremely low charge injection (< 5pC) and low power consumption (< 10µW).

These monolithic switches operate with a single positive supply (+3V to +15V) or with split supplies (±3V to ±8V) while retaining CMOS-logic input compatibility and fast switching. CMOS inputs provide reduced input loading.

Simplified Block Diagram

MAX381, MAX383, MAX383B, MAX385: Pin Configurations/Block Diagrams/Truth Tables MAX381, MAX383, MAX383B, MAX385: Pin Configurations/Block Diagrams/Truth Tables Zoom icon

Technical Docs

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .

Sampling:
Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.