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Industrial Analog Current/Voltage Output Conditioners

Industry's First Programmable Outputs—Current Up to ±24mA or Voltage Up to ±12V

Product Details

Key Features

Applications/Uses

Simplified Block Diagram

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Key Features

  • Supply Voltage Up to ±32.5V
  • Output Protected Up to ±35V
  • Programmable Output (Plus Overrange)
    • ±10V
    • 0 to 10V
    • 0 to 5V
    • ±20mA
    • 0 to 20mA
    • 4 to 20mA
  • Current Output Drives 0 to 1kΩ
  • Voltage Output Drives Loads Down to 1kΩ
  • HART Compliant
  • 2ppm Gain Error Drift Over Temperature
  • SPI Interface, with Daisy-Chain Capability
  • Supports +4.096V (MAX15500) or +2.5V (MAX15501) Full-Scale Input Signals
  • Extensive Error Reporting
    • Short-Circuit and Overcurrent Protection
    • Open-Circuit Detection
    • Brownout Detection
    • Overtemperature Protection
  • Fast, 40µs Settling Time

Applications/Uses

  • Distributed I/Os
  • Embedded Systems
  • Industrial Control and Automation
  • Programmable Logic Controllers (PLCs)

Description

The MAX15500/MAX15501 analog output conditioners provide a programmable current up to ±24mA, or a voltage up to ±12V proportional to a control voltage signal. The control voltage is typically supplied by an external DAC with an output voltage range of 0 to 4.096V for the MAX15500 and 0 to 2.5V for the MAX15501. The output current and voltage are selectable as either unipolar or bipolar. In the unipolar configuration, a control voltage of 5% full-scale (FS) produces a nominal output of 0A or 0V to achieve underrange capability. A control voltage of 100%FS produces one of two programmable levels (105%FS or 120%FS) to achieve overrange capability. The outputs of the MAX15500/MAX15501 are protected against overcurrent conditions and a short to ground or supply voltages up to ±35V. The devices also monitor for overtemperature and supply brownout conditions. The supply brownout threshold is programmable.

The MAX15500/MAX15501 are programmed through an SPI™ interface capable of daisy-chained operation. The MAX15500/MAX15501 provide extensive error reporting through the SPI interface and an additional open-drain interrupt output. The devices include an analog output to monitor load conditions.

The MAX15500/MAX15501 operate over the -40°C to +105°C temperature range. The devices are available in a 32-pin, 5mm x 5mm TQFN package.

Simplified Block Diagram

MAX15500, MAX15501: Typical Operating Circuit/Functional Diagram MAX15500, MAX15501: Typical Operating Circuit/Functional Diagram Zoom icon

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .