LM311P Single High-Speed Differential Comparator PDIP-8

Description

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 V CC+ (2) 18 V V CC- (2) -18 V CC+ – V CC- 36 Differential input voltage (3) V ID ±30 V Input voltage (either input) (2)(4) V I ±15 V Voltage from emitter output to V CC- 30 V Voltage from collector output to V CC- 40 Duration of output short circuit to ground 10 s Operating virtual-junction temperature T J 150 °C Lead temperature 1,6 mm (1/16 inch) from case, 60 s 260 °C Storage temperature T stg -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 V CC+ and V CC- . (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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