SNOS725E May   1999  – March 2025 LMC6462 , LMC6464

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Pin Configuration and Functions
  6. 5 Specifications
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 ESD Ratings
    3. 5.3 Recommended Operating Conditions
    4. 5.4 Thermal Information for LMC6462
    5. 5.5 Thermal Information for LMC6464
    6. 5.6 Electrical Characteristics for VS = ±2.25V or VS = 5V
    7. 5.7 Electrical Characteristics for VS = ±1.5V or VS = 3V
  7. 6 Typical Characteristics
  8. 7 Application and Implementation
    1. 7.1 Application Information
      1. 7.1.1 Input Common-Mode Voltage Range
      2. 7.1.2 Rail-to-Rail Output
      3. 7.1.3 Capacitive Load Tolerance
      4. 7.1.4 Compensating for Input Capacitance
      5. 7.1.5 Offset Voltage Adjustment
      6. 7.1.6 Instrumentation Circuits
    2. 7.2 Typical Applications
      1. 7.2.1 Transducer Interface Circuits
      2. 7.2.2 LMC646x as a Comparator
      3. 7.2.3 Half-Wave and Full-Wave Rectifiers
      4. 7.2.4 Precision Current Source
      5. 7.2.5 Oscillators
      6. 7.2.6 Low Frequency Null
    3. 7.3 Layout
      1. 7.3.1 Layout Guidelines
        1. 7.3.1.1 PCB Layout for High-Impedance Work
  9. 8 Device and Documentation Support
    1. 8.1 Device Support
      1. 8.1.1 Development Support
        1. 8.1.1.1 PSpice® for TI
    2. 8.2 Documentation Support
    3. 8.3 Receiving Notification of Documentation Updates
    4. 8.4 Support Resources
    5. 8.5 Trademarks
    6. 8.6 Electrostatic Discharge Caution
    7. 8.7 Glossary
  10. 9 Revision History
  11. 10Mechanical, Packaging, and Orderable Information

Package Options

Refer to the PDF data sheet for device specific package drawings

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

7.1.1 Input Common-Mode Voltage Range

The LMC646x have a rail-to-rail input common-mode voltage range. Some dc parameters such as input offset voltage, common-mode rejection, and power supply rejection can be degraded for common-mode voltages (VCM) near the positive supply rail. The LMC646x is designed to achieve the best dc precision when the common-mode is limited to VCM < (V+) − 2V. Figure 7-1 shows an input voltage exceeding both supplies with no resulting phase inversion on the output.

LMC6462 LMC6464 An Input Voltage Signal Exceeds the LMC646x Power Supply Voltage with No Output Phase InversionFigure 7-1 An Input Voltage Signal Exceeds the LMC646x Power Supply Voltage with No Output Phase Inversion
LMC6462 LMC6464 A ±7.5V Input Signal Greatly Exceeds the 3V Supply in Figure 7-3 Causing No Phase Inversion Due to RIFigure 7-2 A ±7.5V Input Signal Greatly Exceeds the 3V Supply in Figure 7-3 Causing No Phase Inversion Due to RI

The absolute maximum input voltage at V+ = 3V is 300mV beyond either supply rail at room temperature. Voltages greatly exceeding this absolute maximum rating, as in Figure 7-2, can cause excessive current to flow in or out of the input pins, possibly affecting reliability. The input current can be externally limited to ±5mA, with an input resistor, as shown in Figure 7-3.

LMC6462 LMC6464 Input Current Protection for Voltages Exceeding the Supply Voltage Figure 7-3 Input Current Protection for Voltages Exceeding the Supply Voltage