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Precision, Dual Supply, SPST, Analog CMOS Switches

Product Details

The MAX320/MAX321/MAX322 are precision, dual, SPST analog switches designed to operate from ±3V to ±8V dual supplies. The MAX320 has two normally open (NO) switches and the MAX321 has two normally closed (NC) switches. The MAX322 has one NO and one NC switch. Low power consumption (1.25mW) makes these parts ideal for battery-powered equipment. They offer low leakage currents (100pA max) and fast switching speeds (tON = 150ns max, tOFF = 100ns max).

The MAX320 series, powered from ±5V supplies, offers 35Ω max on-resistance (RON), 2Ω max matching between channels, and 4Ω max RON flatness.

These switches also offer 5pC max charge injection and a minimum of 2000V ESD protection per Method 3015.7. For equivalent devices specified for single-supply operation, see the MAX323/MAX324/MAX325 data sheet. For quad versions of these switches, see the MAX391/MAX392/MAX393 data sheet.

Key Features

  • Low On-Resistance, 35Ω max (16Ω typical)
  • RON Matching Between Channels < 2Ω
  • RON Flatness < 4Ω
  • Guaranteed Charge Injection < 5pC
  • Bipolar Supply Operation (±3V to ±8V)
  • Low Power Consumption, < 1.25mW
  • Low Leakage Current Over Temperature, < 2.5nA at +85°C
  • Fast Switching, tON < 150ns, tOFF < 100ns
  • Guaranteed Break-Before-Make (MAX322 only)

Applications/Uses

  • ±5V DACs and ADCs
  • Audio and Video Switching
  • Battery-Powered Applications
  • Communication Systems
  • Guidance and Control Systems
  • Heads-Up Displays
  • Military Radios
  • PBX, PABX
  • Sample-and-Hold Circuits
  • Test Equipment
Parametric specs for Switches and Multiplexers (Mid and High Voltage)
Configuration SPST
# Channels 2
Functions Switch
Normal Position Open/Closed
VSUPPLY (Dual) (±V) (min) 2.7
VSUPPLY (Dual) (±V) (max) 8
RON (Ω) (max) 35
Package/Pins PDIP/8
SOIC (N)/8
UMAX/8
Budgetary
Price (See Notes)
$1.71 @1k
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Simplified Block Diagram

MAX320, MAX321, MAX322: Pin Configuration MAX320, MAX321, MAX322: Pin Configuration Zoom icon

Technical Docs

Design & Development

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Parameters

Parametric specs for Switches and Multiplexers (Mid and High Voltage)
Configuration SPST
# Channels 2
Functions Switch
Normal Position Open/Closed
VSUPPLY (Dual) (±V) (min) 2.7
VSUPPLY (Dual) (±V) (max) 8
RON (Ω) (max) 35
Package/Pins PDIP/8
SOIC (N)/8
UMAX/8
Budgetary
Price (See Notes)
$1.71 @1k

Key Features

  • Low On-Resistance, 35Ω max (16Ω typical)
  • RON Matching Between Channels < 2Ω
  • RON Flatness < 4Ω
  • Guaranteed Charge Injection < 5pC
  • Bipolar Supply Operation (±3V to ±8V)
  • Low Power Consumption, < 1.25mW
  • Low Leakage Current Over Temperature, < 2.5nA at +85°C
  • Fast Switching, tON < 150ns, tOFF < 100ns
  • Guaranteed Break-Before-Make (MAX322 only)

Applications/Uses

  • ±5V DACs and ADCs
  • Audio and Video Switching
  • Battery-Powered Applications
  • Communication Systems
  • Guidance and Control Systems
  • Heads-Up Displays
  • Military Radios
  • PBX, PABX
  • Sample-and-Hold Circuits
  • Test Equipment

Description

The MAX320/MAX321/MAX322 are precision, dual, SPST analog switches designed to operate from ±3V to ±8V dual supplies. The MAX320 has two normally open (NO) switches and the MAX321 has two normally closed (NC) switches. The MAX322 has one NO and one NC switch. Low power consumption (1.25mW) makes these parts ideal for battery-powered equipment. They offer low leakage currents (100pA max) and fast switching speeds (tON = 150ns max, tOFF = 100ns max).

The MAX320 series, powered from ±5V supplies, offers 35Ω max on-resistance (RON), 2Ω max matching between channels, and 4Ω max RON flatness.

These switches also offer 5pC max charge injection and a minimum of 2000V ESD protection per Method 3015.7. For equivalent devices specified for single-supply operation, see the MAX323/MAX324/MAX325 data sheet. For quad versions of these switches, see the MAX391/MAX392/MAX393 data sheet.

Simplified Block Diagram

MAX320, MAX321, MAX322: Pin Configuration MAX320, MAX321, MAX322: Pin Configuration 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