Heating Ventilation and Air Conditioning

Today's sophisticated buildings require a higher level of energy efficiency, safety and comfort than ever seen before. To obtain peak operating performance in all of these areas simultaneously requires a complex and reliable network of accurate sensors and monitoring /control systems. Analog Devices offers an array of high performance reliable, signal processing solutions that make all of this possible.

ADT75

±1°C Accurate, 12-Bit Digital Temperature Sensor X +

ADT75

The ADT75 is a complete temperature monitoring system in 8-lead MSOP and SOIC packages. It contains a band gap temperature sensor and 12-bit Aanalog-to-digital converter (ADC) to monitor and digitize the temperature to a resolution of 0.0625°C. The ADT75 is pin and register compatible with the LM75 and AD7416.

The ADT75 is specified for operation at supply voltages from 2.7 V to 5.5 V. Operating at 3.3 V, the average supply current is typically 200 μA.

The ADT75 offers a shutdown mode that powers down the device and this mode gives a shutdown current of typically 3 μA. The ADT75 is rated for operation over the –55°C to +125°C temperature range.

The A0, A1, and A2 pins are available for address selection. The OS/ALERT pin is an open-drain output that becomes active when temperature exceeds a programmable limit. The OS/ALERT pin can operate in either comparator or interrupt mode.

Product Highlights

On-chip temperature sensor allows an accurate measurement of the ambient temperature. The measurable temperature range is −55°C to +125°C.
Supply voltage is 2.7 V to 5.5 V.
Space-saving, 8-lead MSOP and 8-lead SOIC.
Temperature accuracy is ±1°C maximum.
Temperature resolution is 0.0625°C.
Shutdown mode reduces the current consumption to 3 μA typical.
Connect up to eight ADT75s to a single SMBus/I²C bus.

Applications

Isolated Sensors
Environmental Control Systems
Computer Thermal Monitoring
Thermal Protection
Industrial Process Control
Power-system Monitors
Hand Held Applications

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Applications

In Vitro Diagnostics

Portable Blood Analyzer

Wireless Infrastructure

Building Technology

LED General Lighting
Building Control and Automation

Security and Surveillance

Video Surveillance
Scanning Equipment
Access Control

AD5592R

8 Channel, 12-Bit, Configurable ADC/DAC with on-chip Reference, SPI interface X +

AD5592R

The AD5592R/AD5592R-1 have eight I/Ox pins (I/O0 to I/O7) that can be independently configured as digital-to-analog converter (DAC) outputs, analog-to-digital converter (ADC) inputs, digital outputs, or digital inputs. When an I/Ox pin is configured as an analog output, it is driven by a 12-bit DAC. The output range of the DAC is 0 V to V_REF or 0 V to 2 × V_REF.

When an I/Ox pin is configured as an analog input, it is connected to a 12-bit ADC via an analog multiplexer. The input range of the ADC is 0 V to V_REF or 0 V to 2 × V_REF. The ADC has a total throughput rate of 400 kSPS. The I/Ox pins can also be configured as digital, general-purpose input or output (GPIO) pins. The state of the GPIO pins can be set or read back by accessing the GPIO write data register or the GPIO read configuration register, respectively, via a serial peripheral interface (SPI) write or read operation.

The AD5592R/AD5592R-1 have an integrated 2.5 V, 25 ppm/°C reference, which is turned off by default, and an integrated temperature indicator, which gives an indication of the die temperature. The temperature value is read back as part of an ADC read sequence.

The AD5592R/AD5592R-1 are available in 16-ball, 2 mm × 2 mm WLCSP, 16-lead, 3 mm × 3 mm LFCSP, and 16-lead TSSOP. The AD5592R/AD5592R-1 operate over a temperature range of −40°C to +105°C.

Applications

Control and monitoring
General-purpose analog and digital inputs/outputs

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ADUM4150

5kV, 6-Channel, SPIsolator Digital Isolator for SPI with Delay Clock

X +

ADUM4150

The ADuM4150 is a 6-channel, SPIsolator^™ digital isolator optimized for isolated serial peripheral interfaces (SPIs). Based on the Analog Devices, Inc., iCoupler^® chip scale transformer technology, the low propagation delay in the CLK, MO/SI, MI/SO, and SS SPI bus signals supports SPI clock rates of up to 17 MHz. These channels operate with 13 ns propagation delay and 1 ns jitter to optimize timing for SPI.

The ADuM4150 isolator also provides two additional independent low data rate isolation channels, one channel in each direction. Data in the slow channels is sampled and serialized for a 250 kbps data rate with 2.5 μs of jitter.

The ADuM4150 supports a delay clock output on the master side of the device. This output can be used with an additional clocked port on the master to support 40 MHz clock performance. See the Delay Clock section for more information.

Applications