SNOSBJ6F October 1999  – December 2014 LM193-N , LM2903-N , LM293-N , LM393-N

PRODUCTION DATA. 

  1. Features
  2. Applications
  3. Description
  4. Simplified Schematic
  5. Revision History
  6. Pin Configuration and Functions
  7. Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 Electrical Characteristics: LM193A V+= 5 V, TA = 25°C
    6. 7.6 Electrical Characteristics: LM193A (V+ = 5 V)
    7. 7.7 Electrical Characteristics: LMx93 and LM2903 V+= 5 V, TA = 25°C
    8. 7.8 Electrical Characteristics: LMx93 and LM2903 (V+ = 5 V)
    9. 7.9 Typical Characteristics: LMx93 and LM193A
    10. 7.10Typical Characteristics: LM2903
  8. Detailed Description
    1. 8.1Overview
    2. 8.2Functional Block Diagram
    3. 8.3Feature Description
    4. 8.4Device Functional Modes
  9. Application and Implementation
    1. 9.1Application Information
    2. 9.2Typical Applications
      1. 9.2.1Basic Comparator
        1. 9.2.1.1Design Requirements
        2. 9.2.1.2Detailed Design Procedure
        3. 9.2.1.3Application Curve
      2. 9.2.2System Examples
        1. 9.2.2.1Split-Supply Application
        2. 9.2.2.2V+ = 5.0 VDC Application Circuits
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1Layout Guidelines
    2. 11.2Layout Example
  12. 12Device and Documentation Support
    1. 12.1Related Links
    2. 12.2Trademarks
    3. 12.3Electrostatic Discharge Caution
    4. 12.4Glossary
  13. 13Mechanical, Packaging, and Orderable Information

1 Features

  • Wide Supply
    • Voltage Range: 2.0 V to 36 V
    • Single or Dual Supplies: ±1.0 V to ±18 V
  • Very Low Supply Current Drain (0.4 mA) — Independent of Supply Voltage
  • Low Input Biasing Current: 25 nA
  • Low Input Offset Current: ±5 nA
  • Maximum Offset voltage: ±3 mV
  • Input Common-Mode Voltage Range Includes Ground
  • Differential Input Voltage Range Equal to the Power Supply Voltage
  • Low Output Saturation Voltage: 250 mV at 4 mA
  • Output Voltage Compatible with TTL, DTL, ECL, MOS and CMOS logic systems
  • Available in the 8-Bump (12 mil) DSBGA Package
  • See AN-1112 (SNVA009) for DSBGA Considerations
  • Advantages
    • High Precision Comparators
    • Reduced VOS Drift Over Temperature
    • Eliminates Need for Dual Supplies
    • Allows Sensing Near Ground
    • Compatible with All Forms of Logic
    • Power Drain Suitable for Battery Operation

2 Applications

  • Battery powered applications
  • Industrial applications

3 Description

The LM193-N series consists of two independent precision voltage comparators with an offset voltage specification as low as 2.0 mV max for two comparators which were designed specifically to operate from a single power supply over a wide range of voltages. Operation from split power supplies is also possible and the low power supply current drain is independent of the magnitude of the power supply voltage. These comparators also have a unique characteristic in that the input common-mode voltage range includes ground, even though operated from a single power supply voltage.

Application areas include limit comparators, simple analog to digital converters; pulse, squarewave and time delay generators; wide range VCO; MOS clock timers; multivibrators and high voltage digital logic gates. The LM193-N series was designed to directly interface with TTL and CMOS. When operated from both plus and minus power supplies, the LM19-N series will directly interface with MOS logic where their low power drain is a distinct advantage over standard comparators.

The LM393 and LM2903 parts are available in TI’s innovative thin DSBGA package with 8 (12 mil) large bumps.

Device Information(1)

PART NUMBERPACKAGEBODY SIZE (NOM)
LM193-NTO-99 (8)9.08 mm x 9.08 mm
LM293-N
LM393-NSOIC (8)4.90 mm x 3.91 mm
LM2903-N
  1. For all available packages, see the orderable addendum at the end of the datasheet.

4 Simplified Schematic

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