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LM2901PT

LM2901PT

STMicroelectronics
Comparator Standard (General Purpose) CMOS, DTL, ECL, MOS, Open-Collector, TTL 14-TSSOP
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Overview

The LM2901PT is a quad independent precision voltage comparator designed to operate from a single power supply over a wide range of voltages from 2V to 32V. It features an open-collector output stage that allows for level shifting and logical wired-OR functions, making it compatible with TTL, DTL, ECL, MOS, and CMOS logic levels.

Why Choose This Part

The 14-TSSOP package provides a compact footprint for space-constrained designs without sacrificing the four-channel density. Its wide supply range and low input bias current of 0.25uA at 5V make it highly versatile for both battery-powered and industrial 24V systems.

Applications

Limit Threshold Detectors
Monitoring sensor voltages against a reference to trigger alarms or logic signals when thresholds are exceeded.
Zero-Crossing Detectors
Detecting when an AC input signal crosses the zero-voltage point for timing or phase control applications.
Voltage Window Comparators
Using multiple stages to determine if a signal remains within a specific high and low voltage range.
Oscillators and Multivibrators
Generating square waves or timed pulses in low-frequency clocking circuits.

Key Specifications

Type Standard (General Purpose)
Output Type CMOS, DTL, ECL, MOS, Open-Collector, TTL
Mounting Type Surface Mount
Package / Case 14-TSSOP (0.173", 4.40mm Width)
Number of Elements 4
Operating Temperature -40degC ~ 125degC
Current - Output (Typ) 16mA @ 5V
Supplier Device Package 14-TSSOP
Current - Quiescent (Max) 2.5mA
Current - Input Bias (Max) 0.25uA @ 5V
Voltage - Input Offset (Max) 7mV @ 5V
Voltage - Supply, Single/Dual (+/-) 2V ~ 32V, +/-1V ~ 16V

Getting Started

Engineers can evaluate this part using a standard TSSOP-14 to DIP adapter on a breadboard for rapid prototyping. Ensure a pull-up resistor is connected to the output, as the open-collector architecture requires an external component to pull the signal high.

Also Consider

LM339APT STMicroelectronics - A similar quad comparator with a narrower operating temperature range often used in commercial applications.

Categories

Analog ICs > Comparators