PTMUX1112PWR Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
Texas Instruments PTMUX1112PWR is a 4-channel 1:1 SPST precision analog switch with low 4.9 Ω on-resistance and 40 dB off-state isolation, operating from 2.7 V to 5.5 V supply in a 16-TSSOP package. Designed for low-leakage signal routing across -40 °C to +125 °C. Available from stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 16
- Lifecycle
- OBSOLETE
- Datasheet
- PTMUX1112PWR Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of PTMUX1112PWR?
- 4-channel SPST normally-open configuration with ultra-low on-resistance of 4.9 Ω max for minimal signal attenuation
- On-resistance matching of 0.13 Ω between channels ensures channel-to-channel signal integrity in multiplexed systems
- 40 dB off-state isolation at signal frequencies suppresses crosstalk in precision analog signal paths
- Wide supply voltage range of 2.7 V to 5.5 V with low leakage current for battery-powered and mixed-rail designs
- Operating temperature range of -40 °C to +125 °C in compact 16-TSSOP package for industrial and automotive environments
What is PTMUX1112PWR used for?
The PTMUX1112PWR is suited for precision analog signal routing in data acquisition systems, medical instrumentation, and industrial test equipment where channel-to-channel resistance matching of 0.13 Ω and 40 dB isolation are critical. Its low-leakage design and 5 V compatibility make it a strong candidate for battery-operated portable analyzers and automotive sensor multiplexers operating across -40 °C to +125 °C. The 16-TSSOP footprint enables dense PCB layouts in multi-channel measurement front ends that require tight switching accuracy.
What are the specifications of PTMUX1112PWR?
| Date Of Intro | 2019-03-08 |
| YTEOL | 0 |
| Analog IC - Other Type | SPST |
| JESD-30 Code | R-PDSO-G16 |
| Normal Position | NC |
| Number of Channels | 4 |
| Number of Functions | 1 |
| Off-state Isolation-Nom | 40dB |
| On-state Resistance Match-Nom | 0.13Ω |
| On-state Resistance-Max (Ron) | 4.9Ω |
| Output | SEPARATE OUTPUT |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Supply Current-Max (Isup) | 0.001mA |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 1.08V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Switch-off Time-Max | 5ns |
| Switch-on Time-Max | 5ns |
| Switching | BREAK-BEFORE-MAKE |
| Technology | CMOS |
| Temperature Grade | AUTOMOTIVE |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| HTS Code | 8542.39.00.60 |
Where can I find the PTMUX1112PWR datasheet?
PTMUX1112PWR Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for PTMUX1112PWR?
Compatible alternatives and drop-in replacements for PTMUX1112PWR:
Frequently Asked Questions
What on-resistance and isolation specifications make the PTMUX1112PWR suitable for precision signal multiplexing?
The PTMUX1112PWR provides a maximum on-resistance of 4.9 Ω with a channel-to-channel matching of 0.13 Ω, and delivers 40 dB off-state isolation, ensuring low signal distortion and high channel separation in precision analog multiplexing applications such as data acquisition front ends operating at 5 V.
How does the PTMUX1112PWR perform across its rated temperature range in automotive sensor applications?
The PTMUX1112PWR is rated from -40 °C to +125 °C, making it suitable for underhood automotive sensor signal conditioning where ambient temperatures can exceed 85 °C. Its stable on-resistance and low leakage current across this range ensure consistent signal integrity for engine control or ADAS sensor multiplexers powered from a 5 V automotive rail.
What is the supply voltage range of the PTMUX1112PWR, and can it interface with 3.3 V logic systems?
The PTMUX1112PWR operates from a 2.7 V to 5.5 V supply, and its digital control inputs are compatible with standard 3.3 V CMOS logic thresholds when powered at 3.3 V. This allows direct connection to microcontrollers or FPGAs with 3.3 V GPIO without additional level-shifting circuitry in mixed-signal board designs.
When would an engineer choose the PTMUX1112PWR over a lower-cost general-purpose analog switch?
An engineer selects the PTMUX1112PWR when the design requires tight resistance matching of 0.13 Ω across all 4 channels and 40 dB crosstalk suppression, which general-purpose switches with 10–20 Ω Ron and 20–30 dB isolation cannot meet. Typical cases include medical ECG signal routers, precision strain-gauge multiplexers, and audio test equipment operating at 5 V where accuracy directly impacts measurement quality.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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