Top

High-Speed, Low-Voltage, 4 Ohm, Dual SPST CMOS Analog Switches

Product Details

The MAX4641/MAX4642/MAX4643 are monolithic, dual, single-pole/single-throw (SPST) switches that can operate from a single supply ranging from +1.8V to +5.5V. The MAX4641/MAX4642/MAX4643 provide low 4Ω on-resistance (RON), 0.6Ω RON matching between channels, and 1Ω RON flatness over the entire analog signal range. These devices offer fast switching times of less than 20ns while consuming less than 0.01µW of quiescent power.

The MAX4641 has two normally open (NO) switches, and the MAX4642 has two normally closed (NC) switches. The MAX4643 has one NO switch and one NC switch. All three devices have low 0.35nA leakage currents over the entire temperature range. The MAX4641/MAX4642/MAX4643 are available in small 8-pin µMAX® and 8-pin QFN packages.

Key Features

  • +1.8V to +5.5V Single-Supply Operation
  • Rail-to-Rail Analog Signal Range
  • Guaranteed RON
    • 4Ω max (+5V supply)
    • 8Ω max (+3V supply)
  • +1.8V Operation
    • RON 30Ω typ Over Temperature
    • tON 18ns typ, tOFF 12ns typ
  • Guaranteed RON Flatness: 1Ω (+5V supply)
  • Guaranteed RON Match Between Channels
    • 0.6Ω (+5V supply)
  • Low Leakage (<0.35nA) Over Entire Temperature Range
  • Excellent AC Characteristics
    • Low Crosstalk: -97dB at 1MHz
    • High Off-Isolation: -80dB at 1MHz
    • 0.018% Total Harmonic Distortion
  • Low Power Consumption: < 0.01µW

Applications/Uses

  • Audio/Video Signal Routing
  • Battery-Powered Applications
  • Communication Systems
  • Low-Voltage Data Acquisition
  • Sample-and-Hold Circuits
Parametric specs for Operating Voltage &le; 5V
Configuration SPST
# Channels 2
Normal Position Closed
VSUPPLY (Single) (V) (min) 1.8
VSUPPLY (Single) (V) (max) 5.5
VSIGNAL (V) (min) 0
VSIGNAL (V) (max) 5.5
Dynamic Range (max) (V) (max) 5.5
RON (Ω) (max) 4
RFLAT(ON) (Ω) (typ) 0.85
Package/Pins UMAX/8
Budgetary
Price (See Notes)
$1.20 @1k
View More

Simplified Block Diagram

MAX4641, MAX4642, MAX4643: Pin Configuration MAX4641, MAX4642, MAX4643: Pin Configuration Zoom icon

Technical Docs

Design & Development

Click any title below to view the detail page where available.

/en/design/design-tools/ee-sim.html?

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.

Parameters

Parametric specs for Operating Voltage &le; 5V
Configuration SPST
# Channels 2
Normal Position Closed
VSUPPLY (Single) (V) (min) 1.8
VSUPPLY (Single) (V) (max) 5.5
VSIGNAL (V) (min) 0
VSIGNAL (V) (max) 5.5
Dynamic Range (max) (V) (max) 5.5
RON (Ω) (max) 4
RFLAT(ON) (Ω) (typ) 0.85
Package/Pins UMAX/8
Budgetary
Price (See Notes)
$1.20 @1k

Key Features

  • +1.8V to +5.5V Single-Supply Operation
  • Rail-to-Rail Analog Signal Range
  • Guaranteed RON
    • 4Ω max (+5V supply)
    • 8Ω max (+3V supply)
  • +1.8V Operation
    • RON 30Ω typ Over Temperature
    • tON 18ns typ, tOFF 12ns typ
  • Guaranteed RON Flatness: 1Ω (+5V supply)
  • Guaranteed RON Match Between Channels
    • 0.6Ω (+5V supply)
  • Low Leakage (<0.35nA) Over Entire Temperature Range
  • Excellent AC Characteristics
    • Low Crosstalk: -97dB at 1MHz
    • High Off-Isolation: -80dB at 1MHz
    • 0.018% Total Harmonic Distortion
  • Low Power Consumption: < 0.01µW

Applications/Uses

  • Audio/Video Signal Routing
  • Battery-Powered Applications
  • Communication Systems
  • Low-Voltage Data Acquisition
  • Sample-and-Hold Circuits

Description

The MAX4641/MAX4642/MAX4643 are monolithic, dual, single-pole/single-throw (SPST) switches that can operate from a single supply ranging from +1.8V to +5.5V. The MAX4641/MAX4642/MAX4643 provide low 4Ω on-resistance (RON), 0.6Ω RON matching between channels, and 1Ω RON flatness over the entire analog signal range. These devices offer fast switching times of less than 20ns while consuming less than 0.01µW of quiescent power.

The MAX4641 has two normally open (NO) switches, and the MAX4642 has two normally closed (NC) switches. The MAX4643 has one NO switch and one NC switch. All three devices have low 0.35nA leakage currents over the entire temperature range. The MAX4641/MAX4642/MAX4643 are available in small 8-pin µMAX® and 8-pin QFN packages.

Simplified Block Diagram

MAX4641, MAX4642, MAX4643: Pin Configuration MAX4641, MAX4642, MAX4643: 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.