SLOS263X August   1999  – May 2020 LMV321 , LMV324 , LMV358

PRODUCTION DATA.  

  1. Features
  2. Applications
  3. Description
  4. Revision History
  5. Pin Configuration and Functions
    1.     Pin Functions: LMV358
    2.     Pin Functions: LMV321
    3.     Pin Functions: LMV324
  6. Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information: LMV321
    5. 6.5 Thermal Information: LMV324
    6. 6.6 Thermal Information: LMV358
    7. 6.7 Electrical Characteristics: VCC+ = 2.7 V
    8. 6.8 Electrical Characteristics: VCC+ = 5 V
    9. 6.9 Typical Characteristics
  7. Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Operating Voltage
      2. 7.3.2 Unity-Gain Bandwidth
      3. 7.3.3 Slew Rate
    4. 7.4 Device Functional Modes
  8. Application and Implementation
    1. 8.1 Typical Application
      1. 8.1.1 Design Requirements
      2. 8.1.2 Detailed Design Procedure
        1. 8.1.2.1 Amplifier Selection
        2. 8.1.2.2 Passive Component Selection
      3. 8.1.3 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

パッケージ・オプション

デバイスごとのパッケージ図は、PDF版データシートをご参照ください。

メカニカル・データ(パッケージ|ピン)
  • D|8
  • DGK|8
  • PW|8
  • DDU|8
サーマルパッド・メカニカル・データ
発注情報

Detailed Design Procedure

The circuit in Figure 41 takes a single-ended input signal, VIN, and generates two output signals, VOUT+ and VOUT– using two amplifiers and a reference voltage, VREF. VOUT+ is the output of the first amplifier and is a buffered version of the input signal, VIN (see Equation 1). VOUT– is the output of the second amplifier which uses VREF to add an offset voltage to VIN and feedback to add inverting gain. The transfer function for VOUT– is Equation 2.

Equation 1. VOUT+ = VIN
Equation 2. LMV321 LMV324 LMV358 Eq2_SBOS703.gif

The differential output signal, VDIFF, is the difference between the two single-ended output signals, VOUT+ and VOUT–. Equation 3 shows the transfer function for VDIFF. By applying the conditions that R1 = R2 and R3 = R4, the transfer function is simplified into Equation 6. Using this configuration, the maximum input signal is equal to the reference voltage and the maximum output of each amplifier is equal to the VREF. The differential output range is 2×VREF. Furthermore, the common mode voltage will be one half of VREF (see Equation 7).

Equation 3. LMV321 LMV324 LMV358 eq_05_sbos703.gif
Equation 4. VOUT+ = VIN
Equation 5. VOUT– = VREF – VIN
Equation 6. VDIFF = 2×VIN – VREF
Equation 7. LMV321 LMV324 LMV358 eq_06_sbos703.gif