High Speed, 30V, Differential Comparator With Strobes

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Product details

Parameters

Number of channels (#) 1 Output type Open-collector Propagation delay time (µs) 0.115 Vs (Max) (V) 30 Vs (Min) (V) 3.5 Vos (offset voltage @ 25 C) (Max) (mV) 7.5 Iq per channel (Typ) (mA) 5.1 Input bias current (+/-) (Max) (nA) 250 Rail-to-rail No Rating Catalog Operating temperature range (C) 0 to 70 Features Strobe, Vos Adj Pin VICR (Max) (V) 28 VICR (Min) (V) 0.5 open-in-new Find other Comparators

Package | Pins | Size

PDIP (P) 8 93 mm² 9.81 x 9.43 SOIC (D) 8 19 mm² 3.91 x 4.9 SOIC (D) 8 19 mm² 4.9 x 3.9 SOP (PS) 8 48 mm² 6.2 x 7.8 TSSOP (PW) 8 19 mm² 3 x 6.4 open-in-new Find other Comparators

Features

  • Fast Response Time: 165 ns
  • Strobe Capability
  • Maximum Input Bias Current: 300 nA
  • Maximum Input Offset Current: 70 nA
  • Can Operate From Single 5-V Supply
  • Available in Q-Temp Automotive
    • High-Reliability Automotive Applications
    • Configuration Control and Print Support
    • Qualification to Automotive Standards
  • On Products Compliant to MIL-PRF-38535,
    All Parameters Are Tested Unless Otherwise Noted. On All Other Products, Production Processing Does Not Necessarily Include Testing of All Parameters.

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Description

The LM111, LM211, and LM311 devices are single high-speed voltage comparators. These devices are designed to operate from a wide range of power-supply voltages, including ±15-V supplies for operational amplifiers and 5-V supplies for logic systems. The output levels are compatible with most TTL and MOS circuits. These comparators are capable of driving lamps or relays and switching voltages up to 50 V at 50 mA. All inputs and outputs can be isolated from system ground. The outputs can drive loads referenced to ground, VCC+ or VCC−. Offset balancing and strobe capabilities are available, and the outputs can be wire-OR connected. If the strobe is low, the output is in the off state, regardless of the differential input.

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Technical documentation

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Type Title Date
* Data sheet LM111, LM211, LM311 Differential Comparators datasheet (Rev. K) Jan. 20, 2017
White papers The Signal e-book: A compendium of blog posts on op amp design topics Mar. 28, 2017
Technical articles Op Amps used as Comparators—is it okay? Mar. 14, 2012
User guides UCC38C42 30-W Synchronous Buck Converter Reference Design Feb. 04, 2003
Application notes Circuit Techniques for Avoiding Oscillations in Comparator Applications Oct. 02, 2002

Design & development

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CAD/CAE symbols

Package Pins Download
PDIP (P) 8 View options
SO (PS) 8 View options
SOIC (D) 8 View options
TSSOP (PW) 8 View options

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