PTMUX1101DCKR Texas Instruments Diode (SOT23 (5-Pin)) In Stock
PTMUX1101DCKR is a 5 V, single-pole single-throw (SPST) precision analog switch by Texas Instruments with low leakage current and 300 MHz signal bandwidth. Key specs: 0.4 Ω on-state resistance matching, 40 dB off-state isolation, and 1-channel design in a 5-pin SOT-23 package. Available in tape-and-reel format with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- SOT23 (5-Pin)
- Pin Count
- 5
- Lifecycle
- OBSOLETE
- Datasheet
- PTMUX1101DCKR Datasheet PDF
- Category
- Diode
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 300 MHz signal bandwidth enabling high-frequency analog signal routing in RF and video circuits
- 40 dB off-state isolation minimizing signal crosstalk and leakage in precision measurement paths
- 0.4 Ω on-state resistance matching for accurate signal transmission with minimal attenuation
- Ultra-compact 5-pin SOT-23 package occupying less than 3 mm² of PCB area in space-constrained designs
Applications
PTMUX1101DCKR is used in precision test and measurement equipment where a single analog signal path must be switched with minimal resistance and leakage, such as in data acquisition front-ends and impedance analyzers. Its 300 MHz bandwidth makes it suitable for routing RF signals in software-defined radio modules and wireless communication test fixtures. It also serves in audio signal routing, battery-powered sensor switches, and portable medical diagnostic devices where low quiescent current and low on-resistance are critical.
Specifications
| Date Of Intro | 2019-03-14 |
| YTEOL | 0 |
| Analog IC - Other Type | SPST |
| Bandwidth-Nom | 300MHz |
| JESD-30 Code | R-PDSO-G5 |
| Normal Position | NO |
| Number of Channels | 1 |
| Number of Functions | 1 |
| Off-state Isolation-Nom | 40dB |
| On-state Resistance Match-Nom | 0.4Ω |
| On-state Resistance-Max (Ron) | 80Ω |
| Output | COMMON OUTPUT |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Supply Current-Max (Isup) | 0.001mA |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 1.08V |
| Supply Voltage-Nom (Vsup) | 1.8V |
| Surface Mount | YES |
| Switch-off Time-Max | 44ns |
| Switch-on Time-Max | 44ns |
| Switching | BREAK-BEFORE-MAKE |
| Technology | CMOS |
| Temperature Grade | AUTOMOTIVE |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Package | SOT23 (5-Pin) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| HTS Code | 8542.39.00.60 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for PTMUX1101DCKR:
Frequently Asked Questions
What is the signal bandwidth and off-state isolation of PTMUX1101DCKR, and which high-frequency applications does this enable?
PTMUX1101DCKR supports a signal bandwidth of 300 MHz and provides 40 dB off-state isolation between the switch terminals. This combination enables its use in RF signal routing for sub-GHz wireless test equipment, video switching circuits, and high-speed analog multiplexing in instrumentation. The 40 dB isolation ensures that an inactive signal path contributes less than 0.01% of its amplitude as leakage to the active channel.
How does the 0.4 Ω on-state resistance matching of PTMUX1101DCKR benefit precision analog measurement chains?
The 0.4 Ω on-state resistance of PTMUX1101DCKR introduces minimal voltage drop and signal attenuation across the switch when conducting, preserving signal fidelity in 50 Ω or 75 Ω impedance-matched measurement chains. For a 100 mA signal current, the resistive drop is only 40 mV, negligible in most precision applications. This tight resistance matching also ensures consistent insertion loss across production units, improving repeatability in calibrated measurement systems.
Why is the 5-pin SOT-23 package of PTMUX1101DCKR advantageous in portable and wearable sensor designs?
The 5-pin SOT-23 package of PTMUX1101DCKR occupies approximately 1.6 mm × 2.9 mm of PCB area, making it one of the smallest available footprints for a single-channel analog switch. This compact size allows integration on densely populated boards in wearable health monitors, portable data loggers, and IoT sensor nodes where board space is limited to less than 5 cm². The tape-and-reel packaging format (DCKR suffix) also simplifies automated pick-and-place assembly in high-volume production.
In a 5 V battery-powered data acquisition system, how does PTMUX1101DCKR's low leakage current extend battery life compared to older CMOS switches?
PTMUX1101DCKR is designed for low off-state leakage, typically in the nanoamp range at 5 V supply, which keeps standby power consumption below 1 µW when the switch is open. Older CMOS analog switches can leak several microamps per channel, adding tens of microwatts of quiescent drain that shortens battery life in duty-cycled sensor applications. For a system sampling at 1 Hz with a 10 ms acquisition window, choosing PTMUX1101DCKR can extend coin-cell battery runtime by weeks compared to a 5 µA leakage alternative.
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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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