TMUX7222DGSR

$3.73

Description：44-V, LATCH-UP IMMUNE, 1:1 (SPST
Series：-

SKU:f4a11a3e4a68 Category: Analog Switches, Multiplexers, Demultiplexers Brand: Texas Instruments

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Product introduction

Product Detailed Parameters

Description：44-V, LATCH-UP IMMUNE, 1:1 (SPST
Series：-
Mfr：Texas Instruments
Package：Tape & Reel (TR),Cut Tape (CT)
Switch Circuit：SPST - NO
Multiplexer/Demultiplexer Circuit：1:01
On-State Resistance (Max)：2.8Ohm
Channel-to-Channel Matching (ΔRon)：100mOhm
Voltage - Supply, Single (V+)：4.5V ~ 44V
Voltage - Supply, Dual (V±)：±4.5V ~ 22V
Switch Time (Ton, Toff) (Max)：168ns, 180ns
-3db Bandwidth：62MHz
Charge Injection：-16pC
Channel Capacitance (CS(off), CD(off))：34pF, 34pF
Current - Leakage (IS(off)) (Max)：5nA
Crosstalk：-93dB @ 1MHz
Operating Temperature：-40°C ~ 125°C (TA)
Mounting Type：Surface Mount
Package / Case：10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
Supplier Device Package：10-VSSOP
Number of Circuits：2
Grade：-
Qualification：-

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TMUX7222DGSR

Overview

The TMUX7222DGSR is a dual-channel, 1:1 single-pole single-throw (SPST) precision analog switch manufactured by Texas Instruments. It operates with a single supply voltage range of 4.5 V to 44 V or dual supplies from ±4.5 V to ±22 V. The device features a low on-resistance of 2.1 Ω and supports bidirectional signal flow between source and drain pins. It includes latch-up immunity, fail-safe logic, and integrated pull-down resistors on control inputs. The component functions within an ambient temperature range of -40°C to +125°C and is housed in a 10-pin VSSOP package.

Feature Summary

Latch-up immune design prevents high current events caused by overvoltage conditions.
Fail-safe logic circuitry allows control pin voltages to be applied before power supply rails.
Integrated pull-down resistors on logic pins ensure defined states without external components.
Rail-to-rail operation supports full signal range from VSS to VDD on source and drain pins.

Applications

Optical networking equipment
Ultrasound scanners
Active oscilloscope probes
Programmable logic controllers (PLC)
Data acquisition systems

Procurement Notes

Verify the specific ordering suffix DGSR corresponds to the VSSOP-10 package configuration. Confirm that the logic level requirements align with the 1.8 V compatible input specifications. Ensure the application environment remains within the specified thermal limits for reliable operation.

Selection Notes

Select this component when dual independent SPST switching is required within a compact footprint. It is suitable for applications demanding high voltage tolerance up to 44 V single supply. Consider the low on-resistance and bidirectional capability for precise signal routing in industrial or medical environments.

Part Context

This part belongs to the TMUX722x family of precision switches. The TMUX7221 variant offers two channels, while the TMUX7222 provides the same dual-channel architecture. Both share identical electrical characteristics and package options, differing primarily in internal channel mapping or availability configurations.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing designs using equivalent TI series devices such as the TMUX7221 if channel count adjustments are permissible.

FAQ

How does the fail-safe logic function?

The fail-safe logic allows voltages on the control pins to be applied before the supply pins are powered, protecting the device from potential damage during startup sequences.