Diodes Incorporated PI5A124TEX-1413

Overview

PI5A124TEX-1413 from Diodes Incorporated (acquired Pericom in 2017) is a single-pole double-throw (SPDT) analog switch IC designed for high-fidelity signal routing in low-voltage systems. It operates from +2V to +6V, delivers 10Ω typical on-resistance at +5V, <2Ω channel-to-channel R_ON matching, and 326MHz -3dB bandwidth - enabling clean audio/video switching and relay replacement in portable instrumentation and telecom interfaces.

For engineers reviewing the PI5A124TEX-1413 datasheet, PI5A124TEX-1413 pinout, PI5A124TEX-1413 application, or PI5A124TEX-1413 equivalent, key selection criteria include rail-to-rail analog swing, sub-10ns turn-on time, 4pC charge injection, and SOT23-6 footprint compatibility with space-constrained battery-powered designs.

Technical Context

The PI5A124TEX-1413 implements a CMOS transmission-gate architecture with matched P/N channel pairs per switch path, ensuring symmetrical on-resistance and minimal distortion across the full analog signal range (0V to V+). Its logic inputs are TTL/CMOS-compatible, supporting direct interfacing with microcontrollers and FPGAs without level-shifting.

Internal ESD protection (±2kV HBM) and clamping diodes on all analog terminals enable robust operation in noisy environments. The device guarantees full functionality over –40°C to +85°C with no performance derating, and its 1µA supply current supports always-on signal-path control in ultra-low-power systems.

Key Specifications

Pinout & Package

PI5A124TEX-1413 is housed in a Pb-free, RoHS-compliant 6-pin SOT23-6 package (65-mil width), optimized for automated placement and thermal dissipation in dense PCB layouts.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TS5A23157DCKR and ADG719BRMZ, PI5A124TEX-1413 offers superior bandwidth and lower charge injection for high-fidelity signal routing, while maintaining competitive R_ON and matching - making it optimal for consumer audio/video and portable test equipment where speed and fidelity outweigh extreme temperature or ultra-low-R_ON requirements.

Availability

PI5A124TEX-1413 is available at Aetrix Electronics and suitable for audio signal routing, video multiplexing, portable instrumentation, and mechanical relay replacement requiring stable component supply across industrial and consumer production programs.

Supply support for PI5A124TEX-1413 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

Diodes Incorporated acquired Pericom Semiconductor in 2017 and now manufactures and supports the PI5A124TEX-1413 as part of its high-performance analog switch portfolio.

This device belongs to Pericom's legacy wide-bandwidth analog switch product line, engineered specifically for low-distortion, high-speed signal routing in portable, telecom, and instrumentation systems.

FAQ

What is the maximum analog signal voltage range supported by PI5A124TEX-1413?

The PI5A124TEX-1413 supports rail-to-rail analog signals from 0V to V+, meaning its full dynamic range equals the applied positive supply voltage. With a +5V supply, signals from 0V to +5V are fully passed without clipping; with +3.3V, the range is 0V to +3.3V. Internal clamping diodes protect against overvoltage, but sustained signals beyond V+ or below GND require external limiting.

Can PI5A124TEX-1413 operate reliably at 2.5V supply?

Yes - the PI5A124TEX-1413 is fully specified for operation from +2V to +6V. At +2.5V, typical on-resistance increases to ~25Ω and bandwidth drops to ~180MHz, but all logic thresholds, leakage, and switching times remain functional per datasheet limits. System validation is recommended for timing-critical applications at minimum supply.

Is PI5A124TEX-1413 pin-compatible with other Pericom analog switches like PI5A125 or PI5A126?

No - PI5A124TEX-1413 uses a 6-pin SOT23-6 package with SPDT configuration (IN, NC, NO, GND, COM, V+). PI5A125 is a dual-SPST switch in the same package but different pinout; PI5A126 is a 3-channel SPST in SC70-6. Direct replacement requires schematic and layout revision due to differing terminal assignments and logic polarity.

Does PI5A124TEX-1413 require external pull-up or pull-down resistors on the IN pin?

No - the IN pin has TTL/CMOS-compatible thresholds (VIH ≥2V, VIL ≤0.8V) and draws only ±1µA input current. It can be driven directly by microcontroller GPIOs, FPGA outputs, or logic gates without external biasing. However, if left floating in system sleep modes, a 100kΩ pull-down is recommended to prevent unintended switching due to noise.