AD5700-1

PRODUCTION

Low Power HART Modem with Precision Internal Oscillator

Data Sheet (Rev. F) Product Selection Table
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Part Details

  • HART-compliant fully integrated FSK modem
  • 1200 Hz and 2200 Hz sinusoidal shift frequencies
  • 115 µA maximum supply current in receive mode
  • Suitable for intrinsically safe applications
  • Integrated receive band-pass filter
    • Minimal external components required
  • Clocking optimized for various system configurations
    • Ultralow power crystal oscillator (60 µA maximum)
    • External CMOS clock source
    • Precision internal oscillator
  • Buffered HART output—extra drive capability
  • 8 kV HBM ESD rating
  • 1.71 V to 5.5 V power supply
  • 1.71 V to 5.5 V interface
  • −40°C to +125°C operation
  • 4 mm × 4 mm LFCSP package
  • HART physical layer compliant
  • UART interface
AD5700-1
Low Power HART Modem with Precision Internal Oscillator
AD5700-1-fbl AD5700-AD5700-1 Pin Configuration
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Hardware Ecosystem

Parts Product Life Cycle Description
Digital to Analog Converters (DACs) 6
AD5412
PRODUCTION Single Channel, 12-Bit, Current Source & Voltage Output DAC, HART Connectivity
AD5422
PRODUCTION Single Channel, 16-Bit, Current Source & Voltage Output DAC, HART Connectivity
AD5410
PRODUCTION

Single-Channel, 12-/16-Bit, Serial Input, 4 mA to 20 mA, Current Source DAC, HART Connectivity
AD5420
PRODUCTION

Single-Channel, 12-/16-Bit, Serial Input, 4 mA to 20 mA, Current Source DAC, HART Connectivity
AD5421
PRODUCTION 16-Bit, Serial Input, Loop-Powered, 4mA to 20mA DAC
AD5755-1
PRODUCTION

Quad Channel, 16-Bit, Serial Input, 4 mA to 20 mA and Voltage Output DAC, Dynamic Power Control, HART Connectivity
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Tools & Simulations

IBIS Model 1

Evaluation Kits

eval board
schematic 1
schematic 2
schematic 3
EVAL-AD5700

AD5700/AD5700-1 Evaluation Board

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Product Details

Both the AD5700 and the AD5700-1 products can be evaluated using the EVAL-AD5700-1EBZ Evaluation board. If evaluating the AD5700 product, simply disable the internal oscillator (i.e. configure the part to use either a CMOS clock or a crystal oscillator). No SDP board is required for this Evaluation board.
EVAL-AD5700
AD5700/AD5700-1 Evaluation Board
AD5700 Evaluation Board AD5700 Evaluation Board - Top View AD5700 Evaluation Board - Bottom View

Reference Designs

4 mA to 20 mA, Loop Powered Field Instrument
4 mA to 20 mA, Loop Powered Field Instrument
CN0267 Circuits from the lab

Complete 4 mA to 20 mA Loop Powered Field Instrument with HART Interface

View Detailed Reference Design

Features and Benefits

  • Complete 4mA to 20mA loop powered field instrument
  • HART compliant interface
  • Registered by HART Communication Foundation (HFC)
  • Low power, small footprint
Functional Block Diagram
Functional Block Diagram
CN0321 Circuits from the lab

Fully Isolated, Single Channel Voltage and 4 mA to 20 mA Output with HART

View Detailed Reference Design

Features and Benefits

  • Voltage and 4mA to 20mA output
  • Fully isolated
  • HART connectivity
CN0328 Top Level Block Diagram
CN0328 Top Level Block Diagram
CN0328 Circuits from the lab

Completely Isolated 4-Channel Multiplexed HART Analog Output Circuit

View Detailed Reference Design

Features and Benefits

  • Complete HART compliant solution for 4mA to 20mA or voltage output 
  • Fully Isolated 
  • Four multiplexed outputs
PLC/DCS Quad Channel Voltage and Current Input Front End
PLC/DCS Quad Channel Voltage and Current Input Front End
EVAL-CN0364-SDPZ Evaluation Board
CN0364 Circuits from the lab

PLC/DCS Quad Channel Voltage and Current Input with HART Compatibility

View Detailed Reference Design

Features and Benefits

  • Quad Channel Voltage and Current Inputs 
  • Fully Isolated 
  • HART Compatibility
PLC/DCS Quad-Channel Voltage and Current Input Front End
PLC/DCS Quad-Channel Voltage and Current Input Front End
EVAL-CN0414-ARDZ
EVAL-CN0414-ARDZ - Top View
EVAL-CN0414-ARDZ - Bottom View
Test Setup Functional Block Diagram
CN0414 Circuits from the lab

Quad Channel Analog Input with Open Wire Detection and HART Compatibility for PLC/DCS Applications

View Detailed Reference Design

Features and Benefits

  • 4-Channels
  • +/- 10V , 4-20mA inputs
  • HART Compatible
  • Integrated Open Wire Detection
4-Channel Multiplexed HART Analog Output Circuit
4-Channel Multiplexed HART Analog Output Circuit
EVAL-CN0418-ARDZ - Angle View
EVAL-CN0418-ARDZ - Top View
EVAL-CN0418-ARDZ - Bottom View
CN0418 Circuits from the lab

Completely Isolated 4-Channel Analog Output Circuit for PLC/DCS Systems with HART

View Detailed Reference Design

Features and Benefits

  • 4-Channels
  • +/- 10V , 4-20mA outputs
  • HART Compatible
  • Dynamic Power Control
  • Digital Slew Rate Limiting
CN0267
Complete 4 mA to 20 mA Loop Powered Field Instrument with HART Interface
4 mA to 20 mA, Loop Powered Field Instrument
CN0321
Fully Isolated, Single Channel Voltage and 4 mA to 20 mA Output with HART
Functional Block Diagram
CN0270
Complete 4 mA to 20 mA HART Solution
AD5420 HART-Enabled Circuit Simplified Schematic
CN0328
Completely Isolated 4-Channel Multiplexed HART Analog Output Circuit
CN0328 Top Level Block Diagram
CN0364
PLC/DCS Quad Channel Voltage and Current Input with HART Compatibility
PLC/DCS Quad Channel Voltage and Current Input Front End
EVAL-CN0364-SDPZ Evaluation Board
CN0414
Quad Channel Analog Input with Open Wire Detection and HART Compatibility for PLC/DCS Applications
PLC/DCS Quad-Channel Voltage and Current Input Front End
EVAL-CN0414-ARDZ
EVAL-CN0414-ARDZ - Top View
EVAL-CN0414-ARDZ - Bottom View
Test Setup Functional Block Diagram
CN0418
Completely Isolated 4-Channel Analog Output Circuit for PLC/DCS Systems with HART
4-Channel Multiplexed HART Analog Output Circuit
EVAL-CN0418-ARDZ - Angle View
EVAL-CN0418-ARDZ - Top View
EVAL-CN0418-ARDZ - Bottom View

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