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Low voltage 1 ohm single-pole double-throw analog switch with break-before-make feature
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The AS11P2TLR is a high speed CMOS low voltage single analog SPDT (single-pole double-throw) switch or 2:1 multiplexer/demultiplexer switch manufactured using silicon gate C²MOS technology. Designed to operate from a 1.65 to 4.5 V supply, this device is ideal for portable applications.

The device offers very low ON-resistance (1 Ω) at VCC= 4.5 V. Switch S1 is ON (connected to common ports Dn) when the SEL input is held high, and OFF (state of high impedance exists between the two ports) when SEL is held low.

Switch S2 is ON (connected to common port D) when the SEL input is held low, and OFF (state of high impedance exists between the two ports) when SEL is held high.

Additional key features are fast switching speed, break-before-make delay time and ultralow power consumption. All inputs and outputs are equipped with protection circuits to protect against static discharge, giving them immunity from ESD and transient excess voltage.

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Key Features

  • High speed:
  • tPD= 130 ps (typ.) at VCC= 3.0 V
  • tPD= 140 ps (typ.) at VCC= 2.3 V
  • Ultra low power dissipation:
  • ICC= 0.2 μA (max.) at TA= 85 °C
  • Low ON resistance:
  • RON= 1.0 Ω (typ.) at VCC= 4.5 V
  • RON= 1.2 Ω (typ.) at VCC= 3.0 V
  • RON= 2.0 Ω (typ.) at VCC= 1.8 V
  • Wide operating voltage range:
  • VCC(opr.) = 1.65 to 4.5 V single supply
  • 5 V tolerant and 1.8 V compatible threshold ON digital control input at VCC= 1.65 to 4.5 V
  • Latch-up performance exceeds 200 mA per JESD 78, Class II
  • ESD performance tested per JESD 22:
  • 2000 V human-body model (A114-B, Class II)
  • 200 V machine model (A115-A)
  • 1000 V charged-device model (C101)

Design Resources


Technical Documentation

Product Specifications

Description Version Size
DS10230: Low voltage 1 Ω single-pole double-throw analog switch with break-before-make feature
1.0 419 KB

Presentations & Training Material


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ST offering in Wearable - Analog and Mixed Signal Portfolio
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Publications and Collaterals


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Analog ICs for wearable devices
2.0 981 KB
ST’s solutions for mobile devices
1.0.0 2,217 KB

Sample & Buy

Part Number Marketing StatusPackagePacking TypeOperating Temperature (min) Operating Temperature (max) Automotive GradeOrder From STUnit Price (US$)*
@ 1000
Distributor AvailabilityRoHS Compliance GradeDownload
Material Declaration**
AS11P2TLRQActiveVFDFPN 6 1x1.2x0.5Tape And Reel-4085_Free Samples.19Distributor reported inventory date: 2015-03-31
Distributor NameRegionStockMin. order
ARROWOrder NowAMERICA50005000

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors
(**) The Material Declaration forms available on may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.
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