Texas Instruments TS5A23159RSER

Overview

TS5A23159RSER from Texas Instruments is a bidirectional 2-channel SPDT analog switch designed for low-distortion signal routing in portable electronics. It operates from 1.65 V to 5.5 V, delivers 1 Ω typical ON-state resistance at 5 V, features break-before-make switching, and supports analog/digital signals with <0.004% THD at 5 V. It is used in audio signal path selection within smartphones and portable instrumentation.

For engineers reviewing the TS5A23159RSER datasheet, TS5A23159RSER pinout, TS5A23159RSER application, or TS5A23159RSER equivalent, key selection criteria include ON-resistance flatness (±0.25 Ω), charge injection (–7 pC), isolation (–64 dB at 1 MHz), and power-down leakage (<1 μA at 0 V VCC).

Technical Context

The TS5A23159RSER implements dual independent CMOS transmission gates with integrated level-shifting control logic, enabling 5.5-V-tolerant IN1/IN2 inputs while operating from as low as 1.65 V VCC. Each channel provides true bidirectional conduction with matched Ron between NO/NC paths and guaranteed break-before-make timing (1–14 ns) to prevent signal shorting during switching.

Its architecture includes ESD-protected I/Os (2000-V HBM), low-capacitance terminals (CNO(ON) = 55 pF), and rail-to-rail analog signal handling (0 V to VCC). The device maintains stable performance across –40°C to +85°C and supports both AC-coupled and DC-coupled signal routing without distortion.

Key Specifications

Pinout & Package

TS5A23159RSER is packaged in a 10-pin UQFN (RSE) with 1.50 mm × 2.00 mm body size and 0.5-mm pitch. The package supports fine-pitch PCB assembly and offers low thermal resistance (RθJA = 180.8°C/W).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar analog switch applications.

Compared with TMUX1574RTER and ADG723BRMZ-REEL, TS5A23159RSER uniquely delivers dual independent SPDT topology with guaranteed break-before-make, 1 Ω Ron, and <0.004% THD - making it the only option qualified for premium smartphone audio switching and precision portable instrumentation.

Availability

TS5A23159RSER is available at Aetrix Electronics and suitable for smartphone audio routing, portable instrumentation signal multiplexing, and USB-C adapter designs requiring stable component supply, consistent parametric performance, and long-term production continuity.

Supply support for TS5A23159RSER 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 and embedded processing technologies, with leadership in precision analog, power management, and signal chain solutions.

The TS5A23159RSER belongs to TI's high-performance analog switch portfolio, engineered specifically for low-distortion, low-power portable audio and instrumentation applications demanding rail-to-rail operation and guaranteed switching behavior.

FAQ

What is the maximum analog signal voltage range supported by the TS5A23159RSER?

The TS5A23159RSER supports analog signals from 0 V to VCC across its COM, NO, and NC terminals. With VCC rated up to 5.5 V, the full analog range is 0 V to 5.5 V - enabling rail-to-rail signal handling without clipping in 5-V systems. This range holds across all specified supply voltages (1.65 V to 5.5 V), making TS5A23159RSER compatible with 1.8-V, 2.5-V, 3.3-V, and 5-V applications.

Does the TS5A23159RSER require external pull-up or pull-down resistors on its IN1 and IN2 control pins?

No, the TS5A23159RSER does not require external pull-up or pull-down resistors on IN1 or IN2. Its CMOS control inputs have negligible leakage (±2 nA typical), and TI specifies that unused inputs must be tied to VCC or GND - not left floating - to ensure predictable channel states. Internal input structure eliminates need for external biasing, simplifying PCB layout for TS5A23159RSER implementations.

How does the TS5A23159RSER behave when VCC is powered down to 0 V?

When VCC = 0 V, the TS5A23159RSER enters power-down isolation mode: all analog paths (COM/NO/NC) become high-impedance with OFF leakage <1 μA, and digital inputs are disabled. This allows safe hot-swapping of analog sources without back-driving or latch-up risk - a critical feature for battery-powered devices using TS5A23159RSER in always-connected audio jacks or sensor interfaces.

Can the TS5A23159RSER be used to switch differential analog signals such as I²S or PDM clock/data pairs?

Yes, the TS5A23159RSER can route differential analog signals like I²S or PDM, provided both lines are switched through separate, matched channels (e.g., COM1/NO1 for one line, COM2/NO2 for the other). Its <0.1 Ω Ron matching and <10 ps inter-channel skew (inherent in identical die structures) preserve phase integrity, while 55 pF ON capacitance maintains >100 MHz bandwidth - sufficient for multi-MHz digital audio clocks.

What is the thermal performance of the TS5A23159RSER in its RSE (UQFN) package?

The TS5A23159RSER in the 10-pin UQFN (RSE) package has a junction-to-ambient thermal resistance (RθJA) of 180.8°C/W. At typical operating conditions (I_COM = 100 mA, V_CC = 5 V), self-heating remains below 2°C - well within specification limits. This enables reliable operation in sealed portable enclosures without heatsinking, supporting continuous use in TS5A23159RSER-based audio adapters and handheld test gear.