Diodes Incorporated LM2901AS14-13

Overview

LM2901AS14-13 from Diodes Incorporated is a quad differential voltage comparator with A-grade precision (1 mV typical input offset voltage), designed for single-supply operation from 2 V to 36 V or dual supplies up to ±18 V, featuring rail-to-rail common-mode input range including ground and TTL/CMOS-compatible open-collector outputs. It delivers low 0.9 mA supply current at 5 V and supports industrial temperature range (−40°C to +125°C) in SO-14 package.

For engineers reviewing the LM2901AS14-13 datasheet, LM2901AS14-13 pinout, LM2901AS14-13 application, or LM2901AS14-13 equivalent, key selection criteria include input offset voltage grade (A-suffix), open-collector output drive capability, wide supply voltage tolerance, input common-mode range extending to ground, and SO-14 footprint compatibility with legacy LM2901 designs.

Technical Context

The LM2901AS14-13 integrates four independent comparators with PNP input stages enabling common-mode voltage down to ground and differential input range equal to full supply voltage. Each channel features uncommitted NPN output transistors capable of sinking up to 16 mA with 100 mV saturation voltage at 4 mA load.

Its bias network ensures supply-current independence across 2–36 V operation, while input bias current remains stable at 25 nA (typ) and input offset current is ±5 nA (typ). The device supports direct interfacing with TTL, CMOS, and MOS logic without level-shifting circuitry.

Key Specifications

Pinout & Package

LM2901AS14-13 is housed in a 14-pin SOIC (SO-14) package with standard industry pinout and green mold compound. The package measures 8.53 mm × 3.80 mm × 1.73 mm (L × W × H) and features 1.27 mm lead pitch.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar quad differential comparator applications.

Compared with LM2901DR, LM2901AS14-13 offers tighter offset and lower supply current; versus TLV3704IPW, it trades ultra-low power for wide-voltage robustness and industrial temperature support-making it optimal for 5–36 V embedded control where precision and reliability are prioritized over nanoamp quiescence.

Availability

LM2901AS14-13 is available at Aetrix Electronics and suitable for battery management systems, motor control modules, industrial sensor interfaces, and power supply sequencing requiring stable component supply across automotive and industrial temperature ranges.

Supply support for LM2901AS14-13 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 semiconductor company specializing in discrete, analog, and mixed-signal solutions for industrial, automotive, computing, and consumer markets.

The LM2901 series belongs to Diodes' precision analog comparator product line, engineered for high-reliability single- and dual-supply applications demanding wide voltage range, low offset, and robust ESD performance in harsh environments.

FAQ

What is the maximum differential input voltage the LM2901AS14-13 can withstand?

The LM2901AS14-13 supports a differential input voltage (V_ID) of up to 36 V, as specified in its Absolute Maximum Ratings. This allows inputs to exceed the supply rail-e.g., applying +30 V to one input while V_CC = 5 V-without damage, provided common-mode limits are observed and negative excursions stay above −0.3 V.

Can the LM2901AS14-13 drive a 10 kΩ pull-up resistor to 24 V?

Yes. Its open-collector NPN output is rated for 20 mA sink current and supports output voltages up to 36 V. With a 10 kΩ pull-up to 24 V, the output will sink 2.4 mA when active-well within the 16 mA typical sink capability at 4 mA test condition and far below the 20 mA absolute maximum rating.

Does the LM2901AS14-13 require external hysteresis for stable operation?

Hysteresis is recommended when input signals have slow edges or high noise susceptibility, as the LM2901AS14-13 lacks internal hysteresis. Without it, stray capacitance between output and inputs may cause oscillation during transitions. For clean, fast-rising pulses (e.g., clock edges), hysteresis is not required per the datasheet's guidance.

How does the A-suffix affect temperature performance compared to the standard LM2901S14-13?

The A-suffix denotes improved input offset voltage specification: 1 mV typical (full temperature range) versus 2 mV typical for non-A devices. Both versions share identical temperature range (−40°C to +125°C), supply current, and response time. The A-grade version maintains tighter offset stability across temperature, critical for applications where threshold drift must be minimized.