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LM319D Datasheet(PDF) 1 Page - NXP Semiconductors |
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LM319D Datasheet(HTML) 1 Page - NXP Semiconductors |
1 / 5 page Philips Semiconductors Linear Products Product specification LM219/319 Dual voltage comparator 277 August 31, 1994 853-0928 13721 DESCRIPTION The LM319 series are precision high-speed dual comparators fabricated on a single monolithic chip. They are designed to operate over a wide range of supply voltages down to a single 5V logic supply and ground. Further, they have higher gain and lower input currents than devices like the µA710. The uncommitted collector of the output stage makes the LM319 compatible with RTL, DTL, and TTL as well as capable of driving lamps and relays at currents up to 25mA. Although designed primarily for applications requiring operation from digital logic supplies, the LM319 series are fully specified for power supplies up to ±15V. It features faster response than the LM111 at the expense of higher power dissipation. However, the high-speed, wide operating voltage range and low package count make the LM319 much more versatile than older devices like the µA711. FEATURES • Two independent comparators • Operates from a single 5V supply • Typically 80ns response time at ±15V • Minimum fanout of 3 (each side) PIN CONFIGURATION 1 2 3 4 5 6 7 8 14 13 12 11 10 9 NC NC GND 1 + INPUT 1 – INPUT 1 V– OUTPUT 2 NC OUTPUT 1 V+ – INPUT 2 + INPUT 2 GND 2 TOP VIEW D, N Packages NC • Maximum input current of 1µA over temperature • Inputs and outputs can be isolated from system ground • High common-mode slew rate EQUIVALENT SCHEMATIC Q1 R1 3.5K R2 4K R3 4K R6 3K Q4 Q3 Q2 – + INPUTS R4 3K R5 3K Q6 R8 2K Q22 Q5 R23 4K R22 60 R20 3.6K R9 18K R18 1.9K Q21 Q20 Q19 R19 250 Q18 R2 900 R24 250 R25 600 TO OTHER HALF R7 3K Q9 Q8 Q7 C1 18pF R10 170 R11 13K R12 13K Q15 Q10 Q13 R13 600 C14 Q12 R14 2K Q11 Q16 R15 300 R16 600 Q12 R17 3 OUTPUT V– GND V+ |
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