New Sensor ICs for Your Measurement and Control Applications

In this article we’ll look at three advanced ICs that can help you to monitor the surrounding environment.
Sensors are everywhere these days—homes, cars, portable medical devices, industrial plants, development boards. And as the sensors themselves become more sophisticated and accurate, it’s important for designers to be aware of the latest developments and capabilities.

This article discusses three products that provide information about basic environmental conditions. Two of the measured quantities—namely, temperature and ambient light level—are familiar aspects of everyday life, and thus two of these products are likely to find a place in, for example, consumer electronics, home automation systems, or wearables. The third sensor measures pressure and is probably more relevant to those working with industrial equipment, vehicle systems, or medical technology.

Products

Texas Instruments

The OPT3006 is a highly integrated ambient-light sensor. Actually, you will notice that “highly integrated” is a recurring theme in this article. The days of raw analog sensor values and custom signal processing circuitry are fading into obscurity; I suppose you can still do it that way if you want to, but the tide is against you.


Image courtesy of Texas Instruments

As you can see, the OPT3006 incorporates analog amplification and analog-to-digital conversion; the output is digital data provided via I2C.
An important thing to understand about this sensor is that it is a lux meter; in other words, it measures light intensity according to the optical characteristics of human vision. This is not as easy as you might think, because a basic light-sensitive semiconductor device does not respond to optical wavelengths in the same way as the human eye does. But as you can see in the following plot, TI has managed to very accurately duplicate the typical human spectral response.


Image courtesy of Texas Instruments

NXP Semiconductors

There is no doubt that you can measure temperature with a discrete thermocouple or thermistor. But that approach seems increasingly archaic when you consider something like the NHS3100 (PDF) from NXP. The “features and benefits” section in the datasheet takes up an entire page.
The NHS3100 is described as a “temperature logger” rather than a temperature sensor, but even that term seems a bit inadequate when you look at the block diagram:


Image courtesy of NXP Semiconductor

There is indeed an internal temperature-sensing element somewhere in this IC. But obviously, that is just the beginning. It also has an ARM Cortex-M0+ processor, a serial wire debug (SWD) interface, program memory, data memory, GPIOs, interrupts, I2C, reduced-power modes, and an RFID interface. And on top of all that, the temperature sensor offers impressive accuracy: you get ±0.3°C from 0°C to 40°C and ±0.5°C from –40°C to +85°C.
The NHS3100 is surely overkill for many applications, but it’s also a highly integrated and high-performance solution for designs that need the type of functionality that it offers.

TE Connectivity

The MS5525DSO (PDF) pressure sensors from TE continue the integration trend. These devices, which are based on a piezo-resistive sensor element, incorporate an analog amplifier and a 24-bit delta-sigma ADC. The sensor data is provided via I2C or SPI.


Image courtesy of TE Connectivity

The datasheet shows four package options, three of which have one or two handy pressure ports.


Image courtesy of TE Connectivity

The MS5525DSO devices can perform absolute and differential (as well as gauge and compound) pressure measurements, with a range of 1 to 30 psi. And actually, these chips also have a temperature sensor, so you get two for one.

Which sensor ICs have you been using lately? Feel free to share your experiences in the comments.
Previous
Next Post »
My photo

Hi, I`m Sostenes, Electrical Technician and PLC`S Programmer.
Everyday I`m exploring the world of Electrical to find better solution for Automation. I believe everyday can become a Electrician with the right learning materials.
My goal with BLOG is to help you learn Electrical.
Related Posts Plugin for WordPress, Blogger...

Label

KITAIFA NEWS KIMATAIFA MICHEZO BURUDANI SIASA TECHNICAL ARTICLES f HAPA KAZI TU. LEKULE TV EDITORIALS ARTICLES DC DIGITAL ROBOTICS SEMICONDUCTORS MAKALA GENERATOR GALLERY AC EXPERIMENTS MANUFACTURING-ENGINEERING MAGAZETI REFERENCE IOT FUNDAMENTAL OF ELECTRICITY ELECTRONICS ELECTRICAL ENGINEER MEASUREMENT VIDEO ZANZIBAR YETU TRANSDUCER & SENSOR MITINDO ARDUINO RENEWABLE ENERGY AUTOMOBILE SYNCHRONOUS GENERATOR ELECTRICAL DISTRIBUTION CABLES DIGITAL ELECTRONICS AUTOMOTIVE PROTECTION SOLAR TEARDOWN DIODE AND CIRCUITS BASIC ELECTRICAL ELECTRONICS MOTOR SWITCHES CIRCUIT BREAKERS MICROCONTROLLER CIRCUITS THEORY PANEL BUILDING ELECTRONICS DEVICES MIRACLES SWITCHGEAR ANALOG MOBILE DEVICES CAMERA TECHNOLOGY GENERATION WEARABLES BATTERIES COMMUNICATION FREE CIRCUITS INDUSTRIAL AUTOMATION SPECIAL MACHINES ELECTRICAL SAFETY ENERGY EFFIDIENCY-BUILDING DRONE NUCLEAR ENERGY CONTROL SYSTEM FILTER`S SMATRPHONE BIOGAS POWER TANZIA BELT CONVEYOR MATERIAL HANDLING RELAY ELECTRICAL INSTRUMENTS PLC`S TRANSFORMER AC CIRCUITS CIRCUIT SCHEMATIC SYMBOLS DDISCRETE SEMICONDUCTOR CIRCUITS WIND POWER C.B DEVICES DC CIRCUITS DIODES AND RECTIFIERS FUSE SPECIAL TRANSFORMER THERMAL POWER PLANT cartoon CELL CHEMISTRY EARTHING SYSTEM ELECTRIC LAMP FUNDAMENTAL OF ELECTRICITY 2 BIPOLAR JUNCTION TRANSISTOR ENERGY SOURCE 555 TIMER CIRCUITS AUTOCAD C PROGRAMMING HYDRO POWER LOGIC GATES OPERATIONAL AMPLIFIER`S SOLID-STATE DEVICE THEORRY DEFECE & MILITARY FLUORESCENT LAMP HOME AUTOMATION INDUSTRIAL ROBOTICS ANDROID COMPUTER ELECTRICAL DRIVES GROUNDING SYSTEM BLUETOOTH CALCULUS REFERENCE DC METERING CIRCUITS DC NETWORK ANALYSIS ELECTRICAL SAFETY TIPS ELECTRICIAN SCHOOL ELECTRON TUBES FUNDAMENTAL OF ELECTRICITY 1 INDUCTION MACHINES INSULATIONS ALGEBRA REFERENCE HMI[Human Interface Machines] INDUCTION MOTOR KARNAUGH MAPPING USEUL EQUIATIONS AND CONVERSION FACTOR ANALOG INTEGRATED CIRCUITS BASIC CONCEPTS AND TEST EQUIPMENTS DIGITAL COMMUNICATION DIGITAL-ANALOG CONVERSION ELECTRICAL SOFTWARE GAS TURBINE ILLUMINATION OHM`S LAW POWER ELECTRONICS THYRISTOR USB AUDIO BOOLEAN ALGEBRA DIGITAL INTEGRATED CIRCUITS FUNDAMENTAL OF ELECTRICITY 3 PHYSICS OF CONDUCTORS AND INSULATORS SPECIAL MOTOR STEAM POWER PLANTS TESTING TRANSMISION LINE C-BISCUIT CAPACITORS COMBINATION LOGIC FUNCTION COMPLEX NUMBERS ELECTRICAL LAWS HMI[HUMANI INTERFACE MACHINES INVERTER LADDER DIAGRAM MULTIVIBRATORS RC AND L/R TIME CONSTANTS SCADA SERIES AND PARALLEL CIRCUITS USING THE SPICE CIRCUIT SIMULATION PROGRAM AMPLIFIERS AND ACTIVE DEVICES BASIC CONCEPTS OF ELECTRICITY CONDUCTOR AND INSULATORS TABLES CONDUITS FITTING AND SUPPORTS CONTROL MOTION ELECTRICAL INSTRUMENTATION SIGNALS ELECTRICAL TOOLS INDUCTORS LiDAR MAGNETISM AND ELECTROMAGNETISM PLYPHASE AC CIRCUITS RECLOSER SAFE LIVING WITH GAS AND LPG SAFETY CLOTHING STEPPER MOTOR SYNCHRONOUS MOTOR AC METRING CIRCUITS BASIC AC THEORY BECOME AN ELECTRICIAN BINARY ARITHMETIC BUSHING DIGITAL STORAGE MEMROY ELECTRICIAN JOBS HEAT ENGINES HOME THEATER INPECTIONS LIGHT SABER MOSFET NUMERATION SYSTEM POWER FACTORS REACTANCE AND IMPEDANCE INDUCTIVE RESONANCE SCIENTIFIC NOTATION AND METRIC PREFIXES SULFURIC ACID TROUBLESHOOTING TROUBLESHOOTING-THEORY & PRACTICE 12C BUS APPLE APPS & SOFTWARE BATTERIES AND POWER SYSTEMS ELECTROMECHANICAL RELAYS ENERGY EFFICIENCY-LIGHT INDUSTRIAL SAFETY EQUIPMENTS MEGGER MXED-FREQUENCY AC SIGNALS PRINCIPLE OF DIGITAL COMPUTING QUESTIONS REACTANCE AND IMPEDANCE-CAPATIVE RECTIFIER AND CONVERTERS SEQUENTIAL CIRCUITS SERRIES-PARALLEL COMBINATION CIRCUITS SHIFT REGISTERS BUILDING SERVICES COMPRESSOR CRANES DC MOTOR DRIVES DIVIDER CIRCUIT AND KIRCHHOFF`S LAW ELECTRICAL DISTRIBUTION EQUIPMENTS 1 ELECTRICAL DISTRIBUTION EQUIPMENTS B ELECTRICAL TOOL KIT ELECTRICIAN JOB DESCRIPTION LAPTOP THERMOCOUPLE TRIGONOMENTRY REFERENCE UART WIRELESS BIOMASS CONTACTOR ELECTRIC ILLUMINATION ELECTRICAL SAFETY TRAINING FILTER DESIGN HARDWARE INDUSTRIAL DRIVES JUNCTION FIELD-EFFECT TRANSISTORS NUCLEAR POWER VALVE WWE oscilloscope 3D TECHNOLOGIES COLOR CODES ELECTRIC TRACTION FLEXIBLE ELECTRONICS FLUKE GEARMOTORS INTRODUCTION LASSER MATERIAL PID PUMP SCIENCE SEAL ELECTRICIAN CAREER ELECTRICITY SUPPLY AND DISTRIBUTION FEATURED MUSIC NEUTRAL PERIODIC TABLES OF THE ELEMENTS POLYPHASE AC CIRCUITS PROJECTS REATORS SATELLITE STAR DELTA VIBRATION WATERPROOF