Diodes Incorporated PI90LV02TEX

Overview

PI90LV02TEX from Pericom Semiconductor is a single-channel LVDS differential line receiver in 5-pin SOT23 package, translating 350mV differential input signals to 3.3V CMOS logic outputs with 2.6ns typical propagation delay, 400 Mbps max data rate, and 40mW power dissipation at 200 MHz. It operates from 3.3V supply, supports –40°C to +85°C industrial temperature range, and is used in high-speed point-to-point serial links on PCBs and backplanes.

For engineers reviewing the PI90LV02TEX datasheet, PI90LV02TEX pinout, PI90LV02TEX application, or PI90LV02TEX equivalent, key selection criteria include differential input threshold (<100 mV), integrated fail-safe biasing, open-circuit fail-safe behavior, and compatibility with 100-Ω impedance media in timing-critical serial interfaces.

Technical Context

The PI90LV02TEX implements a current-mode logic (CML)-compatible input stage optimized for ANSI TIA/EIA-644-1995 LVDS compliance, with differential input voltage threshold below 100 mV and common-mode input range of 0 V to 3.2 V. Its output stage delivers rail-to-rail 3.3V CMOS levels with VOH ≥ 2.4 V and VOL ≤ 0.4 V under load.

It features true open-circuit fail-safe operation-output defaults to logic-high when inputs are unconnected-and enters high-impedance state when VCC drops below 1.5 V. No internal termination resistor is present (unlike PI90LVT02), requiring external 110-Ω differential termination for optimal signal integrity.

Key Specifications

Pinout & Package

PI90LV02TEX uses a Pb-free, RoHS-compliant 5-pin SOT23 (T) package with 0.95 mm pitch and 1.3 mm × 2.9 mm footprint. Pin 1 is marked by a dot or beveled edge; device orientation follows JEDEC MO-178AB standard.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar LVDS receiver applications.

Compared with SN65LVDS049DR and NB3N201MNR2G, PI90LV02TEX offers superior fail-safe reliability and 3.3V CMOS compatibility without added control logic overhead-ideal for space-constrained, single-channel industrial links where simplicity and robustness are prioritized.

Availability

PI90LV02TEX is available at Aetrix Electronics and suitable for industrial backplane interconnect, FPGA-to-ASIC serial link, and automotive display interface applications requiring stable component supply, long-term lifecycle support, and consistent Pb-free manufacturing.

Supply support for PI90LV02TEX 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

Pericom Semiconductor (now part of Diodes Incorporated) specialized in high-speed interface ICs, including LVDS, PCIe, USB, and clock management solutions for communications and computing markets.

The PI90LV02TEX belongs to Pericom's SOTiny™ LVDS receiver family, engineered for minimal PCB area, low power, and noise-immune serial data recovery in space- and power-sensitive embedded systems.

FAQ

Does PI90LV02TEX require external termination resistors?

Yes. Unlike the PI90LVT02 variant, PI90LV02TEX does not integrate a 110-Ω termination resistor. A discrete 100-Ω differential termination must be placed across pins A and B, close to the receiver input, to match transmission line impedance and prevent reflections.

What is the minimum differential input voltage needed to guarantee switching?

The guaranteed switching threshold is ±100 mV differential input voltage (VID), with typical operation down to ±350 mV for full 400 Mbps compliance. Below ±100 mV, output state becomes indeterminate per datasheet Table 1 test conditions.

Can PI90LV02TEX operate with a 2.5V supply?

No. The absolute maximum supply rating is 4.0 V, but recommended operating range is strictly 3.0–3.6 V. At 2.5 V, output drive strength degrades significantly, VOH falls below 2.0 V, and propagation delay increases beyond specification-violating CMOS logic thresholds.

Is PI90LV02TEX pin-compatible with PI90LVT02?

Yes-both share identical 5-pin SOT23 pinout (VCC, GND, A, B, ROUT). However, PI90LVT02 integrates an internal 110-Ω termination, so using it in place of PI90LV02TEX may cause double-termination and signal integrity issues unless external termination is removed.