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TMUX1248
  • TMUX1248
  • TMUX1248

TMUX1248

ACTIVE

3-Ω low RON, 5-V, 2:1 (SPDT) general purpose switch with 3157 pinout

Texas Instruments TMUX1248 Product Info

1 April 2026 2

Parameters

Configuration

2:1 SPDT

Number of channels

1

Power supply voltage - single (V)

1.2, 1.8, 2.5, 3.3, 5

Protocols

Analog

Ron (typ) (Ω)

3

CON (typ) (pF)

23

ON-state leakage current (max) (µA)

0.08

Supply current (typ) (µA)

0.003

Bandwidth (MHz)

250

Operating temperature range (°C)

-40 to 125

Features

1.8-V compatible control inputs, Break-before-make, Fail-safe logic

Input/output continuous current (max) (A)

0.03

Rating

Catalog

Package

SOT-SC70 (DCK)-6-4.2 mm² 2 x 2.1

Features

  • Rail-to-rail Operation
  • Bidirectional Signal Path
  • 1.8 V Logic Compatible
  • Fail-safe Logic
  • Control input overvotlage tolerance: 5.5 V
  • Low On-resistance: 3 Ω
  • Wide Supply Range: 1.08 V to 5.5 V
  • -40°C to +125°C Operating temperature
  • Low supply current: 7 nA
  • Break-before-make switching
  • Rail-to-rail Operation
  • Bidirectional Signal Path
  • 1.8 V Logic Compatible
  • Fail-safe Logic
  • Control input overvotlage tolerance: 5.5 V
  • Low On-resistance: 3 Ω
  • Wide Supply Range: 1.08 V to 5.5 V
  • -40°C to +125°C Operating temperature
  • Low supply current: 7 nA
  • Break-before-make switching

Description

The TMUX1248 is a general purpose 2:1, single-pole double-throw (SPDT), switch that supports a wide operating range of 1.08 V to 5.5 V. The device supports bidirectional analog and digital signals on the source (Sx) and drain (D) pins ranging from GND to VDD. The state of the select pin (SEL) controls which of the two sources pins are connected to the drain pin. Additionally, the TMUX1248 has a low supply current of 7 nA which enables the device to be used in a host of handheld or low power applications.

Break-before-make switching prevents both source pins from being enabled simultaneously. This feature adds robustness in the system by preventing source signals from shorting during switching events.

All logic inputs have 1.8 V logic compatible thresholds, allowing for operation with low voltage logic signals. Fail-Safe Logic circuitry allows voltages on the control pins to be applied before the supply pin, or at a higher voltage than the supply pin up to 5.5 V, protecting the device from potential damage.

SPACER

SPACER

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