Diodes Incorporated PI5A23159UEX

Overview

PI5A23159UEX from Diodes Incorporated is a dual SPDT analog switch fabricated in CMOS technology, designed for low-voltage bus and signal routing applications. It delivers 0.8 Ω typical on-resistance at 3.0 V, supports rail-to-rail analog signals from 1.65 V to 5.5 V supply, and achieves 150 MHz bandwidth with 12 ns transition speed - enabling high-fidelity audio and data switching in portable instrumentation and mobile handsets.

For engineers reviewing the PI5A23159UEX datasheet, PI5A23159UEX pinout, PI5A23159UEX application, or PI5A23159UEX equivalent, key selection criteria include verified break-before-make timing (6–10 ns), sub-40 nA channel leakage across temperature, and logic-input overvoltage tolerance up to 5.5 V independent of V_CC.

Technical Context

The PI5A23159UEX implements two independent SPDT switches with complementary control inputs (S0/S1), each selecting between normally-open (1Bx) and normally-closed (0Bx) paths to a shared common port (Ax). Its CMOS architecture enables true rail-to-rail analog operation and ultra-low quiescent current (<0.1 µA), critical for battery-powered baseband I/O interfacing.

Break-before-make switching is guaranteed (t_BBM = 6–10 ns), eliminating momentary shorting during state transitions. Input capacitance is 3.5 pF, off-isolation exceeds –70 dB at 1 MHz, and charge injection is limited to 35 pC at 5.0 V - ensuring minimal signal disturbance in precision multiplexing and audio routing.

Key Specifications

Pinout & Package

PI5A23159UEX is housed in a 10-pin MSOP (Mini Small Outline Package) with exposed pad, RoHS-compliant and green (Pb-free) construction.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TS5A23159DCUR and ADG723BRMZ, the PI5A23159UEX offers the lowest on-resistance and guaranteed break-before-make timing - making it uniquely suited for battery-powered, high-fidelity analog routing where signal integrity and power efficiency are co-critical.

Availability

PI5A23159UEX is available at Aetrix Electronics and suitable for mobile handset design, portable instrumentation, and industrial data acquisition systems requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for PI5A23159UEX 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 is a global manufacturer of discrete semiconductors and analog ICs, specializing in high-performance, energy-efficient components for consumer, computing, industrial, and automotive markets.

The PI5A23159UEX belongs to Diodes' high-speed analog switch product line, engineered specifically for low-voltage, low-distortion signal routing in portable and battery-constrained applications.

FAQ

What is the maximum allowable analog signal voltage range for PI5A23159UEX?

The PI5A23159UEX supports rail-to-rail analog signals from 0 V to V_CC, with V_CC rated from 1.65 V to 5.5 V. The absolute maximum analog input voltage is –0.5 V to +7.0 V, but sustained operation outside the 0–V_CC range risks increased leakage and distortion. Signal swing must remain within the supply rails for guaranteed R_ON flatness and THD performance.

Does PI5A23159UEX require external pull-up or pull-down resistors on its control inputs?

No. The control inputs (S0/S1) have built-in overvoltage-tolerant circuitry and do not require external biasing. However, the datasheet explicitly states that inputs must not float - they must be actively driven HIGH or LOW. Leaving them unconnected may cause undefined switching behavior and increased ICC due to internal contention.

Can PI5A23159UEX be used in a 1.2 V system?

No. The minimum specified V_CC is 1.65 V. Operation below this voltage is outside the characterized range and not guaranteed for R_ON, timing, or logic threshold performance. At 1.2 V, VIH/VIL thresholds become indeterminate, and R_ON increases significantly - risking signal attenuation and timing violations.

Is thermal derating required for continuous 100 mA switching current in MSOP package?

Yes. At 100 mA per channel and +85°C ambient, power dissipation approaches 1 mW per switch (based on 0.8 Ω R_ON). While the MSOP package has 350 mW max PD at +85°C, PCB copper area and airflow must be validated. Derating is recommended above 70°C ambient if both channels conduct simultaneously for extended periods.