TMUX7221DGSR

$3.73

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

SKU:85a925048a5a 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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TMUX7221DGSR

Overview

The TMUX7221DGSR 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 transmission. It includes latch-up immunity, fail-safe logic, and integrated pull-down resistors on logic pins. The component is housed in a 10-pin VSSOP package and functions within an ambient temperature range of -40°C to +125°C.

Feature Summary

Latch-up immune design for reliable operation in harsh environments
Fail-safe logic circuitry allows control pin voltages to be applied before power rails
Integrated pull-down resistors on SEL logic inputs ensure defined states
Bidirectional signal path support across the full supply voltage range

Applications

Optical networking equipment
Ultrasound scanners
Active oscilloscope probes
Programmable logic controllers (PLC)
Semiconductor test systems

Procurement Notes

Verify the complete part number TMUX7221DGSR against official Texas Instruments documentation to confirm the DGS package variant. Ensure that the specific ordering suffix matches the required reel quantity and tape specifications. Cross-reference the datasheet revision history to validate current manufacturing status and any potential design changes affecting compatibility.

Selection Notes

Select this component when high-voltage analog switching up to 44 V is required with low distortion. The dual-channel SPST configuration suits applications needing independent signal routing. Verify that the logic input levels are compatible with the system's control voltage, as the device supports 1.8 V logic. Consider thermal dissipation limits if operating at maximum continuous current ratings.

Part Context

The TMUX7221 belongs to the TMUX722x family of precision switches, which also includes the TMUX7222. Both devices share identical electrical characteristics and functionality but differ in channel count; the TMUX7221 provides two channels while the TMUX7222 offers four. They are designed for high-performance analog signal routing in industrial and medical instrumentation.