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AD74115H Datasheet

AD74115H Datasheet

Single-Channel, Software Configurable Input and Output with HART Modem
Part No.: AD74115H
Page: 113 Pages
Size: 2239 KB
Manufacturer: Analog Devices, Inc.
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Views: 4
Update Time: 2023-09-12 16:54:02
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AD74115H Datasheet Applicable Part

Part No. Packing SPQ Marking MSL Pins Temp Range Package Description Buy
AD74115HBCPZ Tray 260   1 48 -40°C ~ 85°C 48-Lead LFCSP  
AD74115HBCPZ-RL7 Reel 750   1 48 -40°C ~ 85°C 48-Lead LFCSP  
SPQ:Standard Pack Quantity;MSL:Moisture Sensitivity Level

AD74115H Datasheet(PDF)

AD74115H Datasheet(Picture)

AD74115H Features

  • Single-channel software configurable input and output
  • Multiple configurable modes to a single pin
    • Voltage input
    • Current input
    • Voltage output
    • Current output
    • Digital input
    • Digital output
    • 2-wire, 3-wire, or 4-wire RTD measurements
    • Thermocouple measurement
  • Overvoltage tolerant on screw terminal facing pins, powered or unpowered
  • Auxiliary high voltage sense pins
  • 10 ppm/°C reference temperature coefficient
  • 16-bit, Σ-Δ ADC with optional 50 Hz and 60 Hz rejection
  • 14-bit monotonic DAC
  • Unipolar and bipolar capability
  • Integrated HART modem
  • On-chip diagnostics including open-circuit and short-circuit detection
  • Internal temperature sensor, ±5°C accuracy
  • SPI-compatible
  • Wide power supply range
  • Programmable power control
  • Temperature range: −40°C to +105°C
  • 48-lead LFCSP

AD74115H Applications

  • Isolated industrial control systems
  • Process control
  • Factory automation
  • Building control systems

AD74115H Description

The AD74115H is a single-channel, software-configurable, input and output device for industrial control applications. The AD74115H provides a wide range of use cases, integrated on a single chip. These use cases include analog output, analog input, digital output, digital input, resistance temperature detector (RTD), and thermocouple measurement capability. The AD74115H also has an integrated HART modem. A serial peripheral interface (SPI) is used to handle all communications to the device, including communications with the HART modem. The digital input and digital outputs can be accessed via the SPI or the general-purpose input and output (GPIO) pins to support higher speed data rates.

The device features a 16-bit, Σ-Δ analog-to-digital converter (ADC) and a 14-bit digital-to-analog converter (DAC). The AD74115H contains a high accuracy 2.5 V on-chip reference that can be used as the DAC and ADC reference.

Power and isolation can be provided using the ADP1034 companion product. When using the ADP1034 and AD74115H together, programmable power control (PPC) is available on the positive analog supply, AVDD, which allows for an optimized power solution in the end application. An on-chip charge pump can be enabled if unipolar capability is required.

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