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LM311

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High Speed, 30V, Differential Comparator With Strobes

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Data sheet

LM311

ACTIVE
Data sheet Order now

Product details

Number of channels 1 Output type Open-collector, Open-drain Propagation delay time (µs) 0.115 Vs (max) (V) 30 Vs (min) (V) 3.5 Rating Catalog Features Strobe, Vos Adj Pin Iq per channel (typ) (mA) 5.1 Vos (offset voltage at 25°C) (max) (mV) 7.5 Rail-to-rail No Operating temperature range (°C) 0 to 70 Input bias current (±) (max) (nA) 250 VICR (max) (V) 28 VICR (min) (V) 0.5
Number of channels 1 Output type Open-collector, Open-drain Propagation delay time (µs) 0.115 Vs (max) (V) 30 Vs (min) (V) 3.5 Rating Catalog Features Strobe, Vos Adj Pin Iq per channel (typ) (mA) 5.1 Vos (offset voltage at 25°C) (max) (mV) 7.5 Rail-to-rail No Operating temperature range (°C) 0 to 70 Input bias current (±) (max) (nA) 250 VICR (max) (V) 28 VICR (min) (V) 0.5
PDIP (P) 8 92.5083 mm² 9.81 x 9.43 SOIC (D) 8 29.4 mm² 4.9 x 6 SOP (PS) 8 48.36 mm² 6.2 x 7.8 TSSOP (PW) 8 19.2 mm² 3 x 6.4
  • 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.
  • 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.

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.

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) PDF | HTML 20 Jan 2017
E-book The Signal e-book: A compendium of blog posts on op amp design topics 28 Mar 2017
User guide UCC38C42 30-W Synchronous Buck Converter Reference Design 04 Feb 2003
Application note Circuit Techniques for Avoiding Oscillations in Comparator Applications 02 Oct 2002

Design & development

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Evaluation board

AMP-PDK-EVM — Amplifier performance development kit evaluation module

The amplifier performance development kit (PDK) is an evaluation module (EVM) kit to test common operational amplifier (op amp) parameters and is compatible with most op amps and comparators. The EVM kit offers a main board with several socketed daughtercard options to fit package needs, allowing (...)

User guide: PDF | HTML
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Simulation model

LM111, LM211, LM311 PSpice Model (Rev. A)

SLCM011A.ZIP (65 KB) - PSpice Model
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Simulation model

LM111, LM211, LM311 TINA-TI Macro and Reference Design (Rev. A)

SLCM012A.ZIP (10 KB) - TINA-TI Reference Design
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Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
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Simulation tool

TINA-TI — SPICE-based analog simulation program

TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
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Package Pins CAD symbols, footprints & 3D models
PDIP (P) 8 Ultra Librarian
SOIC (D) 8 Ultra Librarian
SOP (PS) 8 Ultra Librarian
TSSOP (PW) 8 Ultra Librarian
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