LM361 High speed, differential comparator with strobe | TI.com

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High speed, differential comparator with strobe

High speed, differential comparator with strobe - LM361


The LM161/LM361 is a very high speed differential input, complementary TTL output voltage comparator with improved characteristics over the SE529/NE529 for which it is a pin-for-pin replacement. The device has been optimized for greater speed performance and lower input offset voltage. Typically delay varies only 3 ns for over-drive variations of 5 mV to 500 mV. It may be operated from op amp supplies (±15V).

Complementary outputs having maximum skew are provided. Applications involve high speed analog to digital converters and zero-crossing detectors in disk file systems.


  • Independent strobes
  • Ensured high speed: 20 ns max
  • Tight delay matching on both outputs
  • Complementary TTL outputs
  • Operates from op amp supplies: ±15V
  • Low speed variation with overdrive variation
  • Low input offset voltage
  • Versatile supply voltage range

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Part number Order Number of channels (#) Output type Propagation delay time (µs) Vs (Max) (V) Vs (Min) (V) Package Group Vos (offset voltage @ 25 C) (Max) (mV) Iq per channel (Typ) (mA) Input bias current (+/-) (Max) (nA) Rail-to-rail Rating Operating temperature range (C) Package size: mm2:W x L (PKG) Features VICR (Max) (V) VICR (Min) (V) Approx. price (US$)
LM361 Order now 1     Differential     0.14     32     11     PDIP | 14
SOIC | 14
TO-100 | 10    
1     13     30000     No     Catalog     0 to 70     14PDIP: 52 mm2: 8.26 x 6.35 (PDIP | 14)
14SOIC: 52 mm2: 6 x 8.65 (SOIC | 14)
10TO-100: 80 mm2: 8.96 x 8.96 (TO-100 | 10)    
Strobe     23     9     0.80 | 1ku