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AD5420 Dataheets PDF



Part Number AD5420
Manufacturers Analog Devices
Logo Analog Devices
Description Current Source DAC
Datasheet AD5420 DatasheetAD5420 Datasheet (PDF)

Data Sheet Single-Channel, 12-/16-Bit, Serial Input, 4 mA to 20 mA, Current Source DAC, HART Connectivity AD5410/AD5420 FEATURES 12-/16-bit resolution and monotonicity Current output ranges: 4 mA to 20 mA, 0 mA to 20 mA, or 0 mA to 24 mA ±0.01% FSR typical total unadjusted error (TUE) ±3 ppm/°C typical output drift Flexible serial digital interface On-chip output fault detection On-chip reference (10 ppm/°C maximum) Feedback/monitoring of output current Asynchronous clear function Power supply.

  AD5420   AD5420



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Data Sheet Single-Channel, 12-/16-Bit, Serial Input, 4 mA to 20 mA, Current Source DAC, HART Connectivity AD5410/AD5420 FEATURES 12-/16-bit resolution and monotonicity Current output ranges: 4 mA to 20 mA, 0 mA to 20 mA, or 0 mA to 24 mA ±0.01% FSR typical total unadjusted error (TUE) ±3 ppm/°C typical output drift Flexible serial digital interface On-chip output fault detection On-chip reference (10 ppm/°C maximum) Feedback/monitoring of output current Asynchronous clear function Power supply (AVDD) range 10.8 V to 40 V; AD5410AREZ/AD5420AREZ 10.8 V to 60 V; AD5410ACPZ/AD5420ACPZ Output loop compliance to AVDD − 2.5 V Temperature range: −40°C to +85°C 24-lead TSSOP and 40-lead LFCSP packages APPLICATIONS Process control Actuator control PLC HART network connectivity GENERAL DESCRIPTION The AD5410/AD5420 are low cost, precision, fully integrated 12-/16-bit converters offering a programmable current source output designed to meet the requirements of industrial process control applications. The output current range is programmable at 4 mA to 20 mA, 0 mA to 20 mA, or an overrange function of 0 mA to 24 mA. The output is open-circuit protected. The device operates with a power supply (AVDD) range from 10.8 V to 60 V. Output loop compliance is 0 V to AVDD − 2.5 V. The flexible serial interface is SPI, MICROWIRE™, QSPI™, and DSP compatible and can be operated in 3-wire mode to minimize the digital isolation required in isolated applications. The device also includes a power-on reset function, ensuring that the device powers up in a known state, and an asynchronous CLEAR pin that sets the output to the low end of the selected current range. The total unadjusted error is typically ±0.01% FSR. COMPANION PRODUCTS HART Modem: AD5700, AD5700-1 DVCC SELECT FUNCTIONAL BLOCK DIAGRAM DVCC CAP1 CAP2 AV DD CLEAR AD5410/AD5420 R3SENSE R2 R3 BOOST LATCH SCLK SDIN SDO INPUT SHIFT REGISTER AND CONTROL LOGIC 12/16 12-/16-BIT DAC POWERON RESET VREF RSET IOUT FAULT RSET 07027-001 REFOUT REFIN Figure 1. GND Rev. J Document Feedback Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 ©2009–2017 Analog Devices, Inc. All rights reserved. Technical Support www.analog.com AD5410/AD5420 TABLE OF CONTENTS Features .............................................................................................. 1 Applications....................................................................................... 1 General Description ...................


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