SBAA631 January   2025 DAC80508 , INA592 , XTR111 , XTR300 , XTR305

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
  5. 2Analog Output Module Specification
  6. 3Analog Output Module Structure
  7. 4Multi-Channel Output Architectures
    1. 4.1 Fully Integrated DAC Architecture
    2. 4.2 Low Voltage DAC Plus an Output Buffer
    3. 4.3 Track and Hold Multiplexed Output
  8. 5Single-Channel Output Architectures
    1. 5.1 Fully Integrated DAC
    2. 5.2 Low-Voltage DAC Plus an Output Buffer
    3. 5.3 Pulse-Width Modulation Plus a Buffer
  9. 6Output Buffers
    1. 6.1 Unidirectional Current Buffer
    2. 6.2 Bidirectional Current Buffer
    3. 6.3 Voltage Buffer
    4. 6.4 Combined Voltage or Current Buffer
  10. 7Summary
  11. 8References

2 Analog Output Module Specification

Like analog input modules, the output modules features large number of performance specifications, which results in diversity in module types. This diversity is not possible to cover by a single architecture.

AOUT Module SpecificationsFigure 2-1 AOUT Module Specifications

As Figure 2-1 shows, the specifications can be clustered into groups covering output signal and interface, accuracy, precision, speed, reliability, and diagnostics. Although the specifications are numerous, few important parameters are determining the designed for architecture to chose. among the most important specs of AOUT module are:

  • Output type (voltage or current) and the range (±10V or 4-20mA are common) as well as load range
  • Number of channels, and channel isolation
  • Conversion time and output noise.