TS5A23157 Dual Single Pole Double Throw Analog Switch Module

TS5A23157 Dual Single Pole Double Throw Analog Switch Module is a high-performance, bidirectional dual-channel analog switch designed for precise signal routing in modern electronic systems. This module features exceptionally low ON-state resistance and high bandwidth, allowing it to handle both analog and digital signals with minimal distortion. Furthermore, the device operates over a wide voltage range, which ensures compatibility with various logic levels found in microcontroller-based designs. Consequently, engineers often utilize this module to multiplex audio signals, switch sensor data, or manage communication bus routing. Therefore, you should consider the TS5A23157 for any application where low signal loss and high-speed switching are critical requirements.

Key Features:

• Low ON-State Resistance: Features a typical resistance of only 10 Ω, which significantly reduces signal attenuation and voltage drops across the switch.
• Bidirectional Operation: Supports signal flow in both directions, allowing the module to function effectively as either a multiplexer or a demultiplexer.
• High Bandwidth: Provides a signal bandwidth of up to 220 MHz, making it suitable for high-speed digital signals and high-fidelity audio.
• Low Power Consumption: Consumes minimal quiescent current during operation. However, it maintains high-speed switching performance, making it perfect for battery-powered devices.
• Break-Before-Make Design: Incorporates a safety timing mechanism that prevents the momentary shorting of input ports during the switching transition.

Technical Specifications:

• Operating Voltage Range: 1.65 V to 5.5 V
• Switch Configuration: Dual Single Pole Double Throw (SPDT) / 2:1 Multiplexer
• ON-State Resistance (R_on): ≈ 10 Ω (at 5V supply)
• Bandwidth (−3 dB): 220 MHz
• Total Harmonic Distortion (THD): 0.01% (Typical)
• Digital Input Logic: 1.8 V to 5.5 V compatible (TTL/CMOS)
• Operating Temperature: −40°C to +85°C

Mechanical Specifications:

• PCB Material: High-quality FR-4 glass epoxy
• Mounting Hole: Standard diameter for M2.5 or M3 screws
• Header Pins: Standard 2.54 mm (0.1 inch) pitch for easy integration with breadboards.
• Finish: Lead-free (RoHS compliant) surface finish for reliable electrical contact.

Dimensions:

• Module Length: ≈ 22.0 mm
• Module Width: ≈ 18.0 mm
• Overall Height: ≈ 3.0 mm (excluding header pins)
• Weight: ≈ 2.5 g

Pinout and Wiring:

• VCC: Connect to the positive supply voltage (1.65 V to 5.5 V).
• GND: Connect to the common system ground.
• IN1 / IN2: Logic control pins. Driving these pins High or Low selects the active signal path for the respective switch.
• COM1 / COM2: Common signal pins that connect to either the NO or NC terminals based on the logic input.
• NO1 / NO2: Normally Open terminals. Consequently, these connect to COM when the control logic is High.
• NC1 / NC2: Normally Closed terminals. Therefore, these maintain a connection to COM when the control logic is Low.

Datasheet Reference:

• Download Texas Instruments TS5A23157 Datasheet

Commonly Used in:

• Audio Routing: Switching between different audio sources or output speakers in portable media players.
• I2C/SPI Multiplexing: Expanding the number of devices on a shared communication bus by isolating inactive segments.
• Battery Management: Routing charging and sensing signals within complex power management systems.

Applications:

• Signal Multiplexing: Efficiently selecting signals from multiple sensors to be read by a single analog-to-digital converter (ADC) pin.
• Digital Signal Demultiplexing: Directing a single logic signal to one of two different circuit paths.
• Power Path Selection: Managing low-current power rails for specific sub-circuits to conserve energy.

Equivalent Models:

• ADG736 (Analog Devices): A similar low-voltage, dual SPDT switch featuring low ON-resistance.
• MAX4717 (Maxim Integrated): A high-speed, dual SPDT analog switch often found in comparable mobile applications.
• NLAS4684 (ON Semi): A functional alternative for low-voltage signal switching with similar dual-channel architecture.

Package Includes:

• 1 x TS5A23157 Dual Single Pole Double Throw Analog Switch Module