SLCS141H May   2003  – January 2020 LM2903-Q1 , LM2903B-Q1

PRODUCTION DATA.  

  1. Features
  2. Applications
  3. Description
    1.     Family Comparison Table
  4. Revision History
  5. Pin Configuration and Functions
    1.     Pin Functions
  6. Specifications
    1. 6.1  Absolute Maximum Ratings, LM2903-Q1 and LM2903E-Q1
    2. 6.2  Absolute Maximum Ratings, LM2903B-Q1
    3. 6.3  ESD Ratings, LM2903-Q1 and LM2903E-Q1
    4. 6.4  ESD Ratings, LM2903B-Q1
    5. 6.5  Recommended Operating Conditions, LM2903B-Q1
    6. 6.6  Recommended Operating Conditions, LM2903-Q1
    7. 6.7  Recommended Operating Conditions, LM2903E-Q1
    8. 6.8  Thermal Information, LM2903-Q1 and LM2903E-Q1
    9. 6.9  Thermal Information, LM2903B-Q1
    10. 6.10 Electrical Characteristics LM2903B-Q1
    11. 6.11 Switching Characteristics LM2903B-Q1
    12. 6.12 Electrical Characteristics, LM2903-Q1 and LM2903E-Q1
    13. 6.13 Switching Characteristics, LM2903-Q1 and LM2903E-Q1
    14. 6.14 Typical Characteristics, LM2903-Q1 and LM2903E-Q1 Only
    15. 6.15 Typical Characteristics, LM2903B-Q1 Only
  7. Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
    4. 7.4 Device Functional Modes
      1. 7.4.1 Voltage Comparison
  8. Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
        1. 8.2.2.1 Input Voltage Range
        2. 8.2.2.2 Minimum Overdrive Voltage
        3. 8.2.2.3 Output and Drive Current
        4. 8.2.2.4 Response Time
      3. 8.2.3 Application Curves
  9. Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Related Links
    2. 11.2 Receiving Notification of Documentation Updates
    3. 11.3 Support Resources
    4. 11.4 Trademarks
    5. 11.5 Electrostatic Discharge Caution
    6. 11.6 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

Package Options

Refer to the PDF data sheet for device specific package drawings

Mechanical Data (Package|Pins)
  • D|8
  • DGK|8
  • PW|8
Thermal pad, mechanical data (Package|Pins)
Orderable Information

Feature Description

LM2903-Q1 family consists of a PNP darlington pair input, allowing the device to operate with very high gain and fast response with minimal input bias current. The input Darlington pair creates a limit on the input common mode voltage capability, allowing LM2903-Q1 to accurately function from ground to VCC–1.5V differential input. This is enables much head room for modern day supplies of 3.3 V and 5.0 V.

The output consists of an open drain NPN (pull-down or low side) transistor. The output NPN will sink current when the negative input voltage is higher than the positive input voltage and the offset voltage. The VOL is resistive and will scale with the output current. Please see Figure 3 in the Typical Characteristics, LM2903-Q1 and LM2903E-Q1 Only section for VOL values with respect to the output current.