Process Control News - Analog Devices
News on ADI Solutions & Resources for Process Control Applications
Fall 2012

New Production Released Products

Low power analog microcontroller with dual 24-bit sigma-delta ADCs for smart sensor applications
ARM Cortex™ M3 32-bit microcontroller
Very Low Power Consumption only 1mA with Processor and peripherals active and full analog functionality
Dual 4-kSPS 24-bit sigma-delta ADCs
Single-ended or fully differential inputs
Selectable input range ±6.64 mV to ±1.2V
Internal voltage reference (±4ppm/°C)
Low-cost QuickStart™ development system
Learn more about the ADuCM360 download the datasheet and order samples

12-bit, 1-MSPS SAR A/D converter with on-chip reference optimizes power consumption, accuracy and space
Lowest power 12-bit SAR ADC available
  • 349 µA typical at 3 V and 1 MSPS
  • 264 nA power-down current
Flexible power/throughput rate management
DC accuracy: ±1 LSB max INL
Power supply: 2.7 V to 5.25 V
4.5 ppm/°C, 2.5 V on-chip reference
2mm × 3mm 10-lead LFCSP, with alternative pinned MSOP package
Learn more about the AD7091R, 12-bit SAR ADC download the datasheet and order samples

New nanoDAC+™ quad 16- and 12-bit 3V/5V D/A converters offer industry's best DC performance in the smallest package
High relative accuracy (INL): ±2 LSB max
Offset error: ±1.5 mV max
Gain error: ±0.1% max
Low power: 1.8 mW at 3 V
Tiny 3 mm × 3 mm, 16-lead LFCSP package
I²C or SPI interface versions are available
Learn more about AD5686 quad 16-bit nanoDAC+ download the datasheet and order samples
Learn more about AD5684 quad 12-bit nanoDAC+ download the datasheet and order samples

Micro-power, precision RRIO, dual and quad operational amplifiers for current monitoring
Micro-power at high voltage (18 V): 22 µA maximum
Low offset voltage: 350 µV maximum
Low input bias current: 20 pA maximum
Single-supply operation: 2.7 V to 18 V
Dual-supply operation: ±1.35 V to ±9 V
Excellent electromagnetic interference immunity
Learn more about the AD8657 (dual)/AD8659 (quad) download the datasheet and order samples

Process Control Circuits
CFTL
A complete 4 mA to 20 mA HART solution with additional voltage output capability

12-bit, 1 MSPS SAR ADC and driver with total power dissipation less than 5 mW

4-channel flexible configurable voltage and current output circuit for I/O card and PLC applications

A flexible, 4-channel analog front end for wide dynamic range signal conditioning

USB-based temperature monitor using the ADucM360 precision analog microcontroller and an external thermocouple
New for interface and isolation
ezLINX iCoupler isolated interface development environment
Isolated gate drivers - overcoming limitations of optocoupler and high voltage gate driver solutions
Precision voltage references offer industry-leading temperature stability and noise performance
Maximum temperature coefficient (TCVOUT): 2 ppm/°C
Output noise (0.1 Hz to 10 Hz): less than 1 µV p-p at VOUT of 2.048 typical
Initial output voltage error: ±0.02% maximum
Input voltage range: 3 V to 15 V
Low quiescent current: 950 µA maximum
Learn more about the ADR45xx family download the datasheet and order samples

Compact, precision 10 DoF MEMS inertial measurement (IMU) for platform stabilization, navigation and instrumentation
Tri-axis, digital gyroscope with digital range scaling
  • ±250°/sec, ±500°/sec, ±1000°/sec setting
Tri-axis, digital accelerometer, ±18 g min
Tri-axis, digital magnetometer, ±1.9 gauss min
Digital pressure sensor: 300 mbar to 1100 mbar
Single standard SPI interface
Fully factory-tested and calibrated
Learn more about the ADIS16448 download the datasheet and order evaluation boards


Technical Article
Designing robust isolated RS-232 data interfaces for harsh industrial applications

Video
Using a whiteboard and lab setup, our engineer shows how to simultaneous sample industrial level signals, in an isolated, high accuracy, daisy-chained data acquisition system. Documentation, design files, and hardware make it easy to integrate.
Simultaneous sampling, isolated, 16-bit DAQ circuit
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