Texas Instruments TS5N118PWG4

Overview

TS5N118PWG4 from Texas Instruments is a 1-of-8 FET multiplexer/demultiplexer bus switch optimized for high-bandwidth digital and analog signal routing. It features 3 Ω typical ON-state resistance (ron), 25 MHz bandwidth, bidirectional rail-to-rail switching (0–10 V), and operates from 4.75 V to 5.25 V VCC - enabling low-distortion, near-zero-propagation-delay data path control in PCI and memory-interleaving systems.

For engineers reviewing the TS5N118PWG4 datasheet, TS5N118PWG4 pinout, TS5N118PWG4 application, or TS5N118PWG4 equivalent, key selection criteria include its TSSOP-16 package, Ioff partial-power-down capability, 20 pF max OFF-state I/O capacitance (B port), and OE-controlled high-impedance isolation - critical for bus isolation and hot-swap compatibility in networking and computing backplanes.

Technical Context

The TS5N118PWG4 implements an 8-channel FET-based analog/digital switch architecture with integrated charge pump to maintain flat ron across 0–10 V signal swing. Its select inputs (S0–S2) decode one of eight B-port channels to the A port under active-low OE control, supporting true bidirectional data flow without direction pins.

It employs Ioff circuitry to block reverse current during partial power-down, ensuring isolation when VCC = 0 V. The device meets JESD 78 Class II latch-up immunity (>100 mA) and JESD 22 ESD ratings (2000-V HBM, 1000-V CDM), making it suitable for mixed-signal environments requiring robust signal integrity and system-level fault tolerance.

Key Specifications

Pinout & Package

TSSOP-16 (PW) package: 4.4 mm × 5.0 mm body, 0.65 mm pitch, 1.2 mm max height, JEDEC MO-153 compliant.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 1-of-8 analog/digital multiplexer applications.

Compared with SN74CBT3244PWR and CD74HC4051M96, the TS5N118PWG4 uniquely combines address-decoded 1-of-8 switching, sub-1-ns propagation delay, and Ioff-enabled safe power sequencing - making it the only option among the three qualified for PCI-compliant, hot-pluggable, high-fidelity signal routing.

Availability

TS5N118PWG4 is available at Aetrix Electronics and suitable for PCI interface design, memory interleaving systems, and high-speed analog gating applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for TS5N118PWG4 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Texas Instruments is a global semiconductor company specializing in analog, embedded processing, and connectivity technologies with over 50 years of innovation in high-reliability IC design.

The TS5N118PWG4 belongs to TI's high-bandwidth bus switch product line, engineered specifically for low-distortion, rail-to-rail signal routing in PCI, networking, and data-intensive computing infrastructure.

FAQ

What is the maximum signal voltage range supported by the TS5N118PWG4?

The TS5N118PWG4 supports a 0 V to 10 V data I/O voltage range (VI/O), enabling rail-to-rail analog and digital signal switching without level translation. This specification is validated across the full operating temperature range (–40°C to 85°C) and applies to both A and B ports when the device is enabled (OE = L). Exceeding 10 V may violate absolute maximum ratings and risk permanent damage.

Does the TS5N118PWG4 require external components for proper operation?

The TS5N118PWG4 requires a 0.1 µF ceramic decoupling capacitor between VCC and GND, placed as close as possible to pins 14 and 15. Additionally, OE should be pulled up to VCC via a resistor (value determined by driver sink capability) to ensure high-impedance state during power-up/power-down. No external charge pump or bias circuitry is needed - the internal charge pump is self-contained and fully integrated.

How does the Ioff feature of the TS5N118PWG4 protect system-level designs?

The Ioff feature in the TS5N118PWG4 disables all switch paths and blocks reverse current flow when VCC = 0 V, preventing damaging backfeed from live signal lines into a powered-down subsystem. This enables safe hot-swap capability in modular backplanes and protects downstream logic from latch-up or voltage contention - a requirement verified per JESD 78 Class II (exceeding 100 mA fault current immunity).

Can the TS5N118PWG4 be used in bidirectional analog applications such as audio routing?

Yes, the TS5N118PWG4 supports true bidirectional analog signal routing with near-zero propagation delay and low distortion. Its 3 Ω ron, 20 pF Cio(OFF), and flat frequency response up to 25 MHz make it suitable for line-level audio, video sync, and sensor signal multiplexing. However, for AC-coupled audio paths, DC biasing must ensure signals remain within the 0–10 V VI/O range to avoid clipping or turn-on of internal ESD diodes.

What is the thermal performance of the TS5N118PWG4 in TSSOP-16 (PW) package?

The TS5N118PWG4 in TSSOP-16 (PW) package has a junction-to-ambient thermal resistance (θJA) of 108°C/W under standard JEDEC PCB mounting conditions. At maximum continuous I/O current (±100 mA) and worst-case ron (7.5 Ω), power dissipation remains below 80 mW - resulting in negligible junction temperature rise (<9°C above ambient) in typical applications, eliminating need for heatsinking or airflow.