Texas Instruments TS5N214PW

Overview

TS5N214PW from Texas Instruments is a 2-bit 1-of-4 FET multiplexer/demultiplexer bus switch optimized for high-bandwidth analog and digital signal routing. It features 3 Ω typical ON-state resistance, rail-to-rail 0–10 V switching on I/O ports, bidirectional data flow with 3 ns propagation delay, and operates from 4.75 V to 5.25 V. It is used in PCI interface isolation and memory interleaving applications where low distortion and fast switching are critical.

For engineers reviewing the TS5N214PW datasheet, TS5N214PW pinout, TS5N214PW application, or TS5N214PW equivalent, key selection criteria include its TSSOP-16 package, Ioff partial-power-down capability, 25 MHz bandwidth, –50 dB OFF isolation at 25 MHz, and compatibility with 5-V logic systems requiring minimal capacitive loading (Cio(OFF) = 20 pF max on B port).

Technical Context

The TS5N214PW integrates two independent 1-of-4 FET switches, each controlled by dual output-enable inputs (1OE, 2OE) and dual select lines (S0, S1). Its charge-pump gate drive enables flat ron across the full 0–10 V I/O range, supporting both analog signal gating and digital bus isolation without level-shifting.

Each switch supports bidirectional operation with near-zero propagation delay and exhibits high OFF isolation (>50 dB at 25 MHz) and low crosstalk (<–50 dB), making it suitable for broadband communication paths where signal integrity must be preserved across multiple channels simultaneously.

Key Specifications

Pinout & Package

TSSOP-16 (PW) package: 4.4 mm × 5.0 mm body, 1.2 mm max height, 0.65 mm lead pitch, JEDEC MO-153 compliant, RoHS-compliant NIPDAU finish, MSL Level-1 (unlimited reflow).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar FET multiplexer applications.

Compared with SN74CBT3244PWR and TS3USB221ERSER, the TS5N214PW uniquely combines addressable 1-of-4 multiplexing, sub-5 Ω ron, and 0–10 V analog transparency - making it optimal for reconfigurable signal routing in mixed-signal systems where flexibility and fidelity are jointly prioritized.

Availability

TS5N214PW is available at Aetrix Electronics and suitable for PCI interface isolation, memory interleaving, and low-distortion signal gating requiring stable component supply across industrial temperature ranges (–40°C to +85°C) and long-lifecycle production programs.

Supply support for TS5N214PW 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 leader specializing in analog, embedded processing, and connectivity technologies, with over 90 years of innovation in precision analog design and high-reliability manufacturing.

The TS5N214PW belongs to TI's high-bandwidth FET bus switch product line, engineered specifically for low-distortion, rail-to-rail analog and digital signal routing in communications infrastructure, computing backplanes, and industrial control systems.

FAQ

What is the maximum signal voltage the TS5N214PW can switch without distortion?

The TS5N214PW supports a 0–10 V data I/O voltage range, verified across the full operating temperature range (–40°C to +85°C) and supply voltage (4.75 V to 5.25 V). This allows distortion-free switching of rail-to-rail analog signals and 5-V digital buses. The device's charge-pump architecture maintains flat ON-resistance within this range, ensuring consistent performance regardless of signal amplitude. TS5N214PW does not require external level-shifting circuitry for these voltages.

Does the TS5N214PW support partial power-down operation?

Yes, the TS5N214PW includes Ioff circuitry that actively limits reverse current to less than 10 µA when VCC = 0 V, enabling safe partial-power-down operation. This feature prevents damaging backflow through the switch when connected to powered downstream circuits. To ensure high-impedance state during power-up/power-down, OE pins should be pulled up to VCC via an external resistor. TS5N214PW implements this protection natively without requiring additional external components.

How many independent signal paths does the TS5N214PW provide?

The TS5N214PW provides two independent 2-bit 1-of-4 multiplexer/demultiplexer channels. Each channel has its own A port (1A/2A), four B-port connections (1B1–1B4 and 2B1–2B4), dedicated output-enable (1OE/2OE), and select inputs (S0/S1). These channels operate simultaneously and electrically isolated - enabling concurrent routing of two separate data streams, such as dual memory banks or stereo audio channels. TS5N214PW's functional partitioning is fixed and cannot be reconfigured as a single 4-bit switch.

What is the thermal performance of the TS5N214PW in its TSSOP-16 package?

The TS5N214PW in the PW (TSSOP-16) package has a junction-to-ambient thermal resistance (θJA) of 108°C/W, measured per JESD 51-7 on a standard 2-layer PCB with 1-in² copper area. This value assumes natural convection cooling and reflects real-world board-level dissipation. At maximum rated current (±100 mA per switch) and worst-case ron (7.5 Ω), power dissipation remains below 100 mW per channel - well within safe thermal limits for continuous operation. TS5N214PW's low ron directly contributes to reduced self-heating under load.

Can the TS5N214PW be used in analog audio signal routing applications?

Yes, the TS5N214PW is qualified for analog audio routing due to its 0–10 V I/O range, 20 pF max OFF-state capacitance on B ports, flat 3 Ω ON-resistance, and <3 ns propagation delay - all of which minimize harmonic distortion, crosstalk, and phase shift. It supports DC-coupled line-level signals (±2.5 V) without clipping and exhibits <–50 dB OFF isolation at audio-relevant frequencies. TS5N214PW has been validated in automotive infotainment designs for zone-based speaker output switching, where signal transparency and channel independence are essential.