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TMUX7219MDGKR

IC SWITCH SPDT X 1 2.8OHM 8VSSOP

Part Number: TMUX7219MDGKR

Manufacturer: Texas Instruments

Category: Analog Switches, Multiplexers, Demultiplexers

Package: 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)

Datasheet:: TMUX7219MDGKR.pdf

Description: IC SWITCH SPDT X 1 2.8OHM 8VSSOP

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PRODUCT INFORMATION

Product Details

PRODUCT TECHNICAL REFERENCE

TMUX7219MDGKR 44-V, Low Ron, 2:1, 1-Channel Latch-Up Immune Precision Multiplexer with 1.8-V Logic

A comprehensive technical overview of the TMUX7219MDGKR, a precision CMOS multiplexer from Texas Instruments featuring 2.1 Ω low on-resistance, 4.5 V to 44 V single supply range, ±4.5 V to ±22 V dual supply range, 330 mA maximum current support, latch-up immunity, and extended temperature range of –55°C to +125°C. Covers device function, core features, electrical specifications, 8-lead VSSOP package, pin configuration, typical applications, and replacement selection guidance.

Texas Instruments 8-VSSOP 4.5V to 44V

Device Classification CMOS 2:1 (SPDT) Precision Switch

Part Number: TMUX7219MDGKR

Mounting Type: Surface Mount

Operating Temperature Range: -55°C to +125°C

PRODUCT OVERVIEW

What Is the TMUX7219MDGKR?

TMUX7219MDGKR is a precision complementary metal-oxide semiconductor (CMOS) switch from Texas Instruments featuring latch-up immunity in a single channel, 2:1 (SPDT) configuration.[reference:0][reference:1] The device operates with a single supply (4.5 V to 44 V), dual supplies (±4.5 V to ±22 V), or asymmetric supplies (such as VDD = 12 V, VSS = –5 V).[reference:2][reference:3]

The TMUX7219MDGKR supports bidirectional analog and digital signals on the source (Sx) and drain (D) pins ranging from VSS to VDD.[reference:4][reference:5] The device can be enabled or disabled by controlling the EN pin. When disabled, both signal path switches are off. When enabled, the SEL pin can be used to turn on signal path 1 (S1 to D) or signal path 2 (S2 to D).[reference:6]

All logic control inputs support logic levels from 1.8 V to VDD, ensuring both TTL and CMOS logic compatibility when operating in the valid supply voltage range.[reference:7] Fail-Safe Logic circuitry allows voltages on the control pins to be applied before the supply pin, protecting the device from potential damage.[reference:8] The TMUX72xx family provides latch-up immunity, preventing undesirable high current events between parasitic structures within the device typically caused by overvoltage events.[reference:9][reference:10] The TMUX7219MDGKR is rated for extended temperature use down to –55°C, making it ideal for harsh industrial and aerospace applications.[reference:11][reference:12] The device is offered in an 8-lead VSSOP (DGK) package with a 3.00mm × 3.00mm footprint.[reference:13]

Latch-Up Immune Prevents undesirable high current events caused by overvoltage, enabling use in harsh environments.

Wide Supply Range 4.5 V to 44 V single supply or ±4.5 V to ±22 V dual supply with asymmetric supply support.

Extended Temperature –55°C to +125°C operating temperature range for harsh industrial and aerospace applications.

DEVICE HIGHLIGHTS

Key Features and Benefits of TMUX7219MDGKR

Latch-Up Immunity

Prevents undesirable high current events between parasitic structures caused by overvoltage events, allowing the device to be used in harsh environments.[reference:14]

Wide Supply Voltage Range

Operates with single supply from 4.5 V to 44 V, dual supplies from ±4.5 V to ±22 V, or asymmetric supplies such as VDD = 12 V, VSS = –5 V.[reference:15]

Low On-Resistance

2.1 Ω low on-resistance minimizes signal attenuation and power loss in the signal path.[reference:16][reference:17]

Bidirectional Signal Path

Supports bidirectional analog and digital signals on source (Sx) and drain (D) pins ranging from VSS to VDD.[reference:18][reference:19]

1.8 V Logic Compatible

All logic control inputs support logic levels from 1.8 V to VDD, ensuring both TTL and CMOS logic compatibility.[reference:20]

Compact VSSOP-8 Package

Available in an 8-lead VSSOP (DGK) package with a 3.00mm × 3.00mm footprint, ideal for space-constrained designs.[reference:21]

REFERENCE DATA

Technical Specifications for TMUX7219MDGKR

Part Number	TMUX7219MDGKR	Manufacturer	Texas Instruments
Device Type	CMOS 2:1 (SPDT) Precision Switch	Number of Channels	1
Configuration	1 x SPDT (2:1)	Single Supply Voltage Range	4.5 V to 44 V[reference:22]
Dual Supply Voltage Range	±4.5 V to ±22 V[reference:23]	Asymmetric Supply Support	Yes (e.g., VDD = 12 V, VSS = –5 V)[reference:24]
On-Resistance (Ron)	2.1 Ω (Typical)[reference:25][reference:26]	On-Resistance (Max)	2.8 Ω[reference:27]
Charge Injection	-10 pC[reference:28][reference:29]	Current Support (Max)	330 mA[reference:30][reference:31]
-3dB Bandwidth	37 MHz[reference:32]	Switch Time (Ton / Toff)	168 ns / 180 ns (Max)[reference:33]
Latch-Up Immunity	Yes[reference:34][reference:35]	Logic Compatibility	1.8 V Logic[reference:36][reference:37]
Fail-Safe Logic	Yes[reference:38][reference:39]	Rail-to-Rail Operation	Yes[reference:40][reference:41]
Break-Before-Make	Yes[reference:42][reference:43]	Package / Case	8-TSSOP, 8-MSOP (VSSOP)
Supplier Device Package	8-VSSOP (DGK)[reference:44]	Package Body Size	3.00mm × 3.00mm[reference:45]
Mounting Type	Surface Mount	Operating Temperature	-55°C to +125°C[reference:46][reference:47]
Moisture Sensitivity Level	Level-1-260C-UNLIM[reference:48]	RoHS	ROHS3 Compliant[reference:49][reference:50]
REACH Status	REACH Unaffected[reference:51]	Lead Finish / Ball Material	NiPdAu[reference:52]
Packaging	Tape & Reel (2,500 per Reel)[reference:53]	Product Status	Active[reference:54]
Device Marking	A719M[reference:55]	ECCN	EAR99[reference:56]

Electrical values shown above are reference values. Test conditions, limits, and guaranteed performance should always be confirmed from the current official manufacturer datasheet before design or production use.

DESIGN REFERENCE

Circuit Considerations for TMUX7219MDGKR

Power Supply & Decoupling

The TMUX7219MDGKR offers flexible power supply options:

Single Supply: 4.5 V to 44 V operation for systems with a single positive rail[reference:57]
Dual Supply: ±4.5 V to ±22 V for systems requiring bipolar operation[reference:58]
Asymmetric Supply: Supports configurations such as VDD = 12 V, VSS = –5 V[reference:59]
Decoupling: Place a ceramic capacitor (0.1 µF) close to the VDD pin to minimize supply noise

PCB and Signal Integrity Guidance

Precision switch performance depends on layout and signal routing:

Bidirectional Signal Path: The device supports bidirectional analog and digital signals on source (Sx) and drain (D) pins ranging from VSS to VDD[reference:60]
Fail-Safe Logic: Allows voltages on control pins to be applied before the supply pin, protecting the device from potential damage[reference:61]
Break-Before-Make: Ensures that the switch breaks one connection before making another, preventing momentary short circuits[reference:62]
Ground Plane: Use a solid ground plane to minimize parasitic capacitance and ensure low-inductance return paths
Thermal Pad: Not applicable for this package; heat dissipation is managed through the PCB layout
Verify the recommended PCB footprint from the official datasheet prior to production

8-LEAD VSSOP (3mm × 3mm)

Pin Configuration Reference for TMUX7219MDGKR

A719M

VSSOP TOP VIEW

Confirm package orientation and pin numbering against the official package drawing before PCB layout. The VSSOP package has 8 pins with a 3.00mm × 3.00mm body size. Device marking for the TMUX7219MDGKR is "A719M".[reference:63]

1 S1 Source Pin 1 - Bidirectional analog/digital signal path 1

2 GND Ground (0 V) reference for all control inputs

3 SEL Logic Control Input - Selects signal path: Low = S1 to D, High = S2 to D[reference:64]

4 EN Logic Control Input - Enable pin: High = device enabled, Low = both switches off[reference:65]

5 VSS Negative Power Supply (connect to GND for single supply operation)

6 D Drain Pin - Common input/output for the SPDT switch

7 S2 Source Pin 2 - Bidirectional analog/digital signal path 2

8 VDD Positive Power Supply (4.5 V to 44 V for single supply; up to VDD–VSS = 44 V max)

APPLICATION AREAS

Typical Applications for TMUX7219MDGKR

Harsh Industrial Environments

Latch-up immunity and extended temperature range (–55°C to 125°C) make this device ideal for industrial applications susceptible to overvoltage events.[reference:66]

Aerospace & Defense Systems

Extended temperature operation down to –55°C supports aerospace and defense applications requiring high reliability.[reference:67][reference:68]

High-Voltage Signal Routing

44 V single supply capability enables routing of high-voltage analog and digital signals in industrial control systems.[reference:69]

Bidirectional Level Translation

Bidirectional signal path with rail-to-rail operation supports level translation between different voltage domains.[reference:70]

Data Acquisition Systems

Low on-resistance (2.1 Ω) and low charge injection (-10 pC) ensure signal integrity in precision data acquisition.[reference:71]

Medical Instrumentation

Latch-up immunity and wide temperature range support medical equipment requiring robust signal switching.

REPLACEMENT GUIDANCE

Selecting an Alternative for TMUX7219MDGKR

A replacement for the TMUX7219MDGKR should not be selected solely by product category. The electrical characteristics, package, and pin configuration must be evaluated against the specific circuit requirements. The following alternatives are documented in the official Texas Instruments datasheet and product pages.

Low on-resistance: 2.1 Ω typical

Wide supply range: 4.5V–44V single, ±4.5V–±22V dual

Extended temperature: –55°C to 125°C

Latch-up immunity

1.8 V logic compatible

Package: 8-VSSOP (DGK)

Fail-safe logic, break-before-make

Bidirectional signal path, rail-to-rail

Packaging alternatives (same package, different carrier):

Part Number	Package	Carrier	SPQ	Temperature Range
TMUX7219MDGKR	8-VSSOP (DGK)	Tape & Reel	2,500[reference:72]	-55°C to 125°C[reference:73]
TMUX7219DGKR	8-VSSOP (DGK)	Tape & Reel	2,500[reference:74]	-40°C to 125°C[reference:75]

All alternative part numbers listed above are documented in the official Texas Instruments product pages. The TMUX7219MDGKR is the extended temperature (M-grade) version in 8-VSSOP (DGK) package with tape-and-reel packaging (2,500 units per reel).[reference:76] The TMUX7219DGKR is the standard temperature version with the same package and packaging, but rated for –40°C to 125°C operation.[reference:77] The key difference between the two variants is the extended temperature range down to –55°C for the M-grade version, making it suitable for military, aerospace, and harsh-environment applications.[reference:78][reference:79] Select based on temperature requirements.

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MANUFACTURER INFORMATION

Texas Instruments

The TMUX7219M (TMUX7219MDGKR) belongs to the TMUX72xx family of precision CMOS switches and multiplexers from Texas Instruments featuring latch-up immunity. The device is a complementary metal-oxide semiconductor (CMOS) switch with latch-up immunity in a single channel, 2:1 (SPDT) configuration.[reference:80] The TMUX72xx family provides latch-up immunity, preventing undesirable high current events between parasitic structures within the device typically caused by overvoltage events, allowing these switches and multiplexers to be used in harsh environments.[reference:81] The TMUX7219M is rated for extended temperature use down to –55°C, making it ideal for harsh industrial and aerospace applications.[reference:82] The TMUX7219M is available in an 8-lead VSSOP (DGK) package with tape-and-reel packaging.

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Technical Information Disclaimer

This technical guide is provided for product identification and preliminary reference only. Electrical limits, package dimensions, pin configuration, product status, and application suitability must be verified using current official manufacturer documentation before design, procurement, or production.

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Specifications

Product Attribute: Attribute Value

Part Number: TMUX7219MDGKR

Manufacturer: Texas Instruments

Package: 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)

Series: -

Packaging: Tape & Reel (TR)

Product Status: Active

Switch Circuit: SPDT

Multiplexer/Demultiplexer Circuit: 2:1

Number of Circuits: 1

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: 40MHz

Charge Injection: -16pC

Channel Capacitance (CS(off), CD(off)): 34pF, 48pF

Current - Leakage (IS(off)) (Max): 5nA

Crosstalk: -106dB @ 1MHz

Operating Temperature: -55°C ~ 125°C (TA)

Grade: -

Qualification: -

Mounting Type: Surface Mount

Supplier Device Package: 8-VSSOP

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Part Number: TMUX7219MDGKR

Manufacturer: Texas Instruments

Package: 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)

Category: Analog Switches, Multiplexers, Demultiplexers

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