Diodes Incorporated LM2901AT14-13

Overview

LM2901AT14-13 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 - used in overvoltage detection, window comparators, and power supply monitoring circuits.

For engineers reviewing the LM2901AT14-13 datasheet, LM2901AT14-13 pinout, LM2901AT14-13 application, or LM2901AT14-13 equivalent, key selection considerations include its 1 mV max offset voltage (A-suffix), 0.9 mA supply current at 5 V, TSSOP-14 package footprint, and open-collector output stage enabling wired-OR logic and flexible pull-up voltage selection.

Technical Context

The LM2901AT14-13 integrates four independent comparators with PNP input stages, delivering low input bias current (25 nA typ) and low input offset current (±5 nA typ). Its input common-mode range extends from ground to V_CC − 1.5 V, and differential input voltage tolerance reaches ±36 V - enabling direct interface with signals exceeding the supply rail without damage.

Each comparator features an uncommitted NPN output transistor capable of sinking up to 16 mA, with saturation voltage of 100 mV at 4 mA load. The device operates across −40°C to +125°C and supports hysteresis implementation via external positive feedback to prevent oscillation during transitions.

Key Specifications

Pinout & Package

TSSOP-14 package: 4.4 mm × 5.0 mm body, 0.65 mm pitch, 1.0 mm max height, green halogen-free mold compound, RoHS 3 compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with LM2901T14-13, the LM2901AT14-13 delivers tighter offset for critical sensing, while TLV3704IPW trades supply voltage headroom and temperature range for ultra-low power - making LM2901AT14-13 optimal for ruggedized, wide-input industrial monitoring.

Availability

LM2901AT14-13 is available at Aetrix Electronics and suitable for industrial motor control, automotive battery management, and programmable power supply monitoring requiring stable component supply across extended temperature and voltage ranges.

Supply support for LM2901AT14-13 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, with manufacturing and test facilities across Asia and North America.

The LM2901 series belongs to Diodes' precision analog comparator product line, engineered for robust performance in harsh industrial, automotive, and power management applications where reliability and wide operating margins are essential.

FAQ

Can LM2901AT14-13 operate from a single 3.3 V supply?

Yes. The LM2901AT14-13 supports single-supply operation down to 2 V, so it functions reliably at 3.3 V. Input common-mode range includes ground, and output saturation voltage remains below 100 mV at 4 mA sink current - ensuring clean logic-level transitions into 3.3 V CMOS inputs with appropriate pull-up.

What is the maximum input voltage allowed when V_CC = 5 V?

The absolute maximum differential input voltage is ±36 V, and either input may exceed V_CC without damage. However, the common-mode input voltage must stay within −0.3 V to V_CC − 1.5 V (i.e., −0.3 V to 3.5 V at 5 V supply); inputs beyond that range require clamping diodes to avoid malfunction.

Does LM2901AT14-13 have built-in hysteresis?

No. The LM2901AT14-13 has no internal hysteresis. External positive feedback (e.g., resistor from output to non-inverting input) must be added to prevent oscillation during slow input transitions or in noisy environments - typical hysteresis voltage is 1–10 mV depending on resistor ratio.

Is the TSSOP-14 package of LM2901AT14-13 RoHS 3 and halogen-free?

Yes. The LM2901AT14-13 uses Diodes Incorporated's "Green" mold compound: fully RoHS 3 compliant (2015/863/EU), lead-free, and halogen-free (<900 ppm Br, <900 ppm Cl, <1000 ppm Sb), verified per manufacturer documentation DS36779 Rev 4-2.