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ADI AD5421BREZ-REEL7 product image
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ADI AD5421BREZ-REEL7RoHS

Manufacturer
ADI
MPN
AD5421BREZ-REEL7
LCSC Part #
C169543
Packaging
HTSSOP-28
Customer #
Key Attributes
16-bit, serial input, loop-powered, 4 mA to 20 mA DAC
Datasheetpdf iconADI AD5421BREZ-REEL7
In-Stock: 492
492 In stock, ships now
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QtyUnit PriceTotal Amount
1+$ 12.6582$ 12.66
10+$ 10.9561$ 109.56
30+$ 9.9192$ 297.58
100+$ 9.0495$ 904.95
Standard Packaging1000/Full Reel
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Products Specifications

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TypeDescription
CategoryIntegrated Circuits (ICs)/Data Acquisition/Digital to Analog Converters (DAC)
ManufacturerADI
PackagingHTSSOP-28
Settling Time50us
Operating Temperature-40℃~+105℃
Voltage - Supply5.5V~52V
Quiescent Current (Iq)300uA
FunctionBuilt-in reference source;Programmable gain;Built-in temperature sensor;Over temperature protection;Under-voltage detection
Integral non - linearity-
Resolution (Bits)16;-
Number of Channels1
Interface TypeSPI
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Additional Information

TypeDetails
Minimum1
Multiple1
Standard Packaging1000
Sales UnitPiece

Introduction

AI Translation

The AD5421 is a complete, loop-powered 4 mA to 20 mA DAC designed to meet the needs of smart transmitter manufacturers in industrial control applications. As a fully integrated, high-precision, low-cost solution, the device is available in compact TSSOP and LFCSP packages. The AD5421 incorporates an on-chip regulated output to power itself and other devices in the transmitter. This regulator provides an adjustable output voltage from 1.8 V to 12 V. The device also integrates 1.22 V and 2.5 V voltage references, eliminating the need for discrete regulators and references. The AD5421 can be used with standard HART FSK protocol communication circuitry without affecting rated performance. The high-speed serial interface operates at up to 30 MHz and allows simple connection to popular microprocessors and microcontrollers via an SPI-compatible 3-wire interface. The AD5421 guarantees 16-bit monotonicity. Under typical conditions, integral nonlinearity is 0.0015%, offset error is 0.0012%, and gain error is 0.0006%. It is available in 28-lead TSSOP and 32-lead LFCSP packages, rated for the extended industrial temperature range of -40°C to +105°C.

Features

AI Translation
  • 16-bit resolution and monotonicity
  • Pin-selectable NAMUR-compatible ranges: 4 mA to 20 mA, 3.8 mA to 21 mA, 3.2 mA to 24 mA
  • NAMUR-compatible alarm currents: low alarm = 3.2 mA, high alarm = 22.8 mA/24 mA
  • Total unadjusted error (TUE): 0.05% (maximum)
  • Integral nonlinearity (INL) error: 0.0035% FSR (maximum)
  • Output temperature coefficient: 3 ppm/°C (typical)
  • Quiescent current: 300 μA (maximum)
  • Flexible SPI-compatible serial digital interface with Schmitt trigger inputs
  • On-chip fault alarm via FAULT pin or alarm current
  • Automatic fault register readback on every write cycle
  • Slew rate control
  • Gain and offset adjustment registers
  • On-chip reference temperature coefficient: 4 ppm/°C (maximum)
  • Optional regulated output
  • Loop voltage range: 5.5 V to 52 V
  • Temperature range: −40°C to +105°C
  • TSSOP and LFCSP packages

Applications

AI Translation
  • Industrial process control
  • 4 mA to 20 mA loop-powered transmitters
  • Smart transmitters
  • HART network connectivity