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LM311P Single High-Speed Differential Comparator PDIP-8

LM311P high-speed single differential comparator in PDIP-8 with open-collector output, ideal for fast voltage comparison and logic interfacing.

6.00 EGP

In stockSKU 9578388901772
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LM311P Single High-Speed Differential Comparator PDIP-8

The LM311P Single High-Speed Differential Comparator is a precision voltage comparator designed for fast and accurate comparison of analog signals. Packaged in an 8-pin PDIP, this device features a differential input stage and an open-collector output, allowing flexible interfacing with various logic levels and supply voltages. The LM311P supports a wide supply voltage range and delivers rapid response times, making it suitable for high-speed threshold detection, zero-crossing detection, and waveform shaping applications. Its robust design, combined with external output pull-up flexibility, enables reliable operation in both analog and digital systems where precise and fast comparison is required.

Features
  • High-speed differential voltage comparator.
  • Open-collector output for flexible logic interfacing.
  • Wide single-supply or dual-supply operation.
  • Fast response suitable for high-frequency signals.
  • Differential input stage with good noise immunity.
  • Standard PDIP-8 through-hole package.
PINOUT

Pin Number Pin Name Description
1 EMIT OUT Emitter Output – This is the Emitter pin of the output transistor
2 Non-Inverting Input (IN+) The Non-Inverting Pin of the comparator is give a variable  voltage to compare
3 Inverting Input (IN-) The Inverting pin is also given a fixed voltage which is compared with the (IN+)
4 Ground (VCC-) This pin is connected to the ground of the system (Negative voltage can also be used)
5 Balance This pin can be used to turn off  the DC-offset voltage
6 Balance/Strobe This pin can be used to turn off the output stage
7 COL OUT Collector Out – This is the Collector output of the transistor
8 VCC+ Provide the operating voltage for the Op-Amp. For LM311 it is upto +15V
Specifications

Absolute Maximum Ratings

Parameter(1) MIN MAX UNIT
Supply voltage VCC+(2) 18 V
VCC-(2) -18
VCC+ – VCC- 36
Differential input voltage(3) VID ±30 V
Input voltage (either input)(2)(4) VI ±15 V
Voltage from emitter output to VCC- 30 V
Voltage from collector output to VCC- 40
Duration of output short circuit to ground 10 s
Operating virtual-junction temperature TJ 150 °C
Lead temperature 1,6 mm (1/16 inch) from case, 60 s 260 °C
Storage temperature Tstg -65 150 °C

(1) Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device.

(2) All voltage values, unless otherwise noted, are with respect to the midpoint between VCC+ and VCC-.

(3) Differential voltages are at IN+ with respect to IN–.

(4) The magnitude of the input voltage must never exceed the magnitude of the supply voltage or ±15 V, whichever is less.

NOTE: for full electrical specifications check the datasheet down below.

Applications
  • Zero-crossing detectors.
  • Voltage level and threshold detection.
  • Pulse and waveform shaping circuits.
  • Oscillators and timing circuits.
  • Over-voltage and under-voltage protection.
  • Digital logic signal conditioning.
Package Contents
  • 1x LM311P Single High-Speed Differential Comparator PDIP-8.
Documents
Datasheet LM311P
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