The ADN2850 is a dual-channel, nonvolatile memory, digitallycontrolled resistors?with 1024-step resolution, offeringguaranteed maximum low resistor tolerance error of ?8%. Thedevice performs the same electronic adjustment function as amechanical rheostat with enhanced resolution, solid statereliability, and superior low temperature coefficientperformance. The versatile programming of the ADN2850 viaan SPI?-compatible serial interface allows 16 modes ofoperation and adjustment including scratchpad programming,memory storing and restoring, increment/decrement, ?6 dB/steplog taper adjustment, wiper setting readback, and extra EEMEM?for user-defined information such as memory data for other components, look-up table, or system identificationinformation.In the scratchpad programming mode, a specific setting canbe programmed directly to the RDAC?register, which sets theresistance between Terminal W and Terminal B. This setting canbe stored into the EEMEM and is restored automatically to theRDAC register during system power-on.The EEMEM content can be restored dynamically or throughexternal PR strobing, and a WP function protects EEMEM contents. To simplify the programming, the independent orsimultaneous linear-step increment or decrement commandscan be used to move the RDAC wiper up or down, one step at atime. For logarithmic ?6 dB changes in the wiper setting, theleft or right bit shift command can be used to double or halve theRDAC wiper setting.The ADN2850 patterned resistance tolerance is stored in theEEMEM. The actual full scale resistance can, therefore, beknown by the host processor in readback mode. The host canexecute the appropriate resistance step through a softwareroutine that simplifies open-loop applications as well asprecision calibration and tolerance matching applications.The ADN2850 is available in the 5 mm ? 5 mm 16-lead framechip scale LFCSP and thin, 16-lead TSSOP package. The part isguaranteed to operate over the extended industrial temperaturerange of ?40?C to +85?C.Applications SONET, SDH, ATM, Gigabit Ethernet, DWDM laser diode driver, optical supervisory systems Mechanical rheostat replacement Instrumentation gain adjustment Programmable filters, delays, time constants Sensor calibration

The ADT7422 is a high accuracy, digital I2C temperature sensor?designed to meet the clinical thermometry specification of the?ASTM E1112 standards when soldered onto the final printed?circuit board (PCB).The ADT7422 contains an internal band gap reference, a?temperature sensor, and a precision analog-to-digital converter?(ADC). The ADT7422 provides a 16-bit temperature result?with a resolution of 0.0078?C and an accuracy of up to ?0.1?C?across the temperature range of 25?C to 50?C without the need?for calibration after the PCB soldering process.Operating at 3.0 V, the average supply current is typically 210 ?A.?The ADT7422 has a shutdown mode that powers down the?device and offers a shutdown current of typically 2.0 ?A at 3.0 V.?The ADT7422 is rated for operation over the ?40?C to +125?C?temperature range.Pin A0 and Pin A1 are available for address selection and provide?four possible I2C addresses for the ADT7422. The CT pin is an?open-drain output that becomes active when the temperature?exceeds a programmable critical temperature limit. The INT pin is?also an open-drain output that becomes active when the?temperature exceeds a programmable limit. The INT pin and?CT pin can operate in comparator and interrupt event modes.Product Highlights No calibration or correction required by the user. Low power consumption. Long-term stability and reliability. High accuracy for industrial, instrumentation, and medical applications.Applications Vital signs monitoring (VSM) Medical equipment Resistance temperature detector (RTD) and thermistor replacement Food transportation and storage Thermocouple cold junction compensation Environmental monitoring and heating, ventilation, and air conditioning (HVAC) Laser diode temperature control

The ADuC7019?/?ADuC7020?/?ADuC7021?/?ADuC7022?/?ADuC7024?/?ADuC7025?/?ADuC7026?/?ADuC7027?/ ADuC7028 /?ADuC7029 are fully integrated,1 MSPS, 12-bit data acquisition systems incorporating highperformance multichannel ADCs, 16-bit/32-bit MCUs, andFlash?/EE memory on a single chip.The ADC consists of up to 12 single-ended inputs. An additionalfour inputs are available but are multiplexed with the four DACoutput pins. The four DAC outputs are available only on certainmodels (ADuC7020, ADuC7026, ADuC7028, and ADuC7029).However, in many cases where the DAC outputs are not present,these pins can still be used as additional ADC inputs, giving amaximum of 16 ADC input channels. The ADC can operate insingle-ended or differential input mode. The ADC input voltageis 0 V to VREF. A low drift band gap reference, temperature sensor,and voltage comparator complete the ADC peripheral set.Depending on the part model, up to four buffered voltageoutput DACs are available on-chip. The DAC output range isprogrammable to one of three voltage ranges.The devices operate from an on-chip oscillator and a PLLgenerating an internal high frequency clock of 41.78 MHz(UCLK). This clock is routed through a programmable clockdivider from which the MCU core clock operating frequencyis generated. The microcontroller core is an ARM7TDMI?,16-bit/32-bit RISC machine, which offers up to 41 MIPS peakperformance. Eight kilobytes of SRAM and 62 kilobytes ofnonvolatile Flash/EE memory are provided on-chip. TheARM7TDMI core views all memory and registers as a singlelinear array.On-chip factory firmware supports in-circuit serial downloadvia the UART or I2C serial interface port; nonintrusive emulationis also supported via the JTAG interface. These features areincorporated into a low cost QuickStart? development systemsupporting this MicroConverter? family.The parts operate from 2.7 V to 3.6 V and are specified over anindustrial temperature range of ?40?C to +125?C. Whenoperating at 41.78 MHz, the power dissipation is typically120 mW. The ADuC7019/ADuC7020/ADuC7021/ADuC7022/ADuC7024/ADuC7025/ADuC7026/ADuC7027/ADuC7028/ADuC7029 areavailable in a variety of memory models and packages (seeOrdering Guide).APPLICATIONS Industrial control and automation systems Smart sensors, precision instrumentation Base station systems, optical networking

The ADuC7124?is a fully integrated, 1 MSPS, 12-bit data acquisition system incorporating high performance multichannel ADCs, 16-bit/32-bit MCUs, and Flash/EE memory on a single chip.The ADC consists of up to 12 single-ended inputs. An additional two inputs are available but are multiplexed with the two DAC output pins. The ADC can operate in single-ended or differential input mode. The ADC input voltage range is 0 V to VREF. A low drift band gap reference, temperature sensor, and voltage comparator complete the ADC peripheral set.The DAC output range is programmable to one of three voltage ranges. The DAC outputs have an enhanced feature of being able to retain their output voltage during a watchdog or software reset sequence.The device operates from an on-chip oscillator and a PLL generating an internal high frequency clock of 41.78 MHz. This clock is routed through a programmable clock divider from which the MCU core clock operating frequency is generated. The microcontroller core is an ARM7TDMI?, 16-bit/32-bit RISC machine, which offers up to 41 MIPS of peak performance. Thirty-two kilobytes of SRAM and 126 kB of nonvolatile Flash/EE memory are provided on-chip. The ARM7TDMI core views all memory and registers as a single linear array.The ADuC7124 contains an advanced interrupt controller. The vectored interrupt controller (VIC) allows every interrupt to be assigned a priority level. It also supports nested interrupts to a maximum level of eight per IRQ and FIQ. When IRQ and FIQ interrupt sources are combined, a total of 16 nested interrupt levels are supported.On-chip factory firmware supports in-circuit download via the UART serial interface port or the I2C port, while nonintrusive emulation is also supported via the JTAG interface. These features are incorporated into a low cost QuickStart? development system supporting this MicroConverter? family.The part contains a 16-bit PWM with six output signals.For communication purposes, the part contains 2? I2C channels that can be individually configured for master or slave mode. An SPI interface supporting both master and slave modes is also provided. Thirdly, 2? UART channels are provided. Each UART contains a configurable 16-bit FIFO with receive and transmit buffers.The part operates from 2.7 V to 3.6 V and is specified over an industrial temperature range of ?40?C to +125?C. When operating at 41.78 MHz, the power dissipation is typically 120 mW. The ADuC7124 is available in a 64-lead LFCSP package.APPLICATIONS Industrial control and automation systems Smart sensors, precision instrumentation Base station systems, optical networking Patient monitoring

The ADuM3220/ADuM32211 are isolated, 4A dual-channel gate drivers based on the Analog Devices, Inc., iCoupler?technology. Combining high speed CMOS and monolithic transformer technology, these isolation components provide outstandingperformance characteristics superior to the alternatives, such as the combination of pulse transformers and gate drivers.The ADuM3220/ADuM3221 provide digital isolation in two independent isolation channels. They have a maximum propagationdelay of 60 ns and 5 ns channel-to-channel matching. In comparison to gate drivers that employ high voltage level translationmethodologies, the ADuM3220/ADuM3221 offer the benefit of true, galvanic isolation between the input and each output,enabling voltage translation across the isolation barrier. The ADuM3220 has shoot-through protection logic, which preventsboth outputs from being on at the same time, whereas the ADuM3221 allows both outputs to be on at the same time. Both partsoffer a default output low characteristic as required for gate drive applications.The ADuM3220/ADuM3221 operate with an input supply voltage ranging from 3.0 V to 5.5 V, providing compatibility with lowervoltage systems. The outputs of the ADuM3220A/ADuM3221A can be operated at supply voltages from 4.5 V to 18 V. The outputs ofthe ADuM3220B/ADuM3221B can be operated at supply voltages from 7.6 V to 18 V.The junction temperature of the ADuM3220/ADuM3221 is specified from ?40?C to +125?C.Applications Isolated synchronous dc-to-dc converters MOSFET/IGBT gate drivers

The ADuM6420A/ADuM6421A/ADuM6422A/ADuM6423A/ADuM6424A1 are quad-channel digital isolators with an isoPower?, integrated, isolated dc-to-dc converter. Based on the Analog Devices, Inc., iCoupler? technology, the dc-to-dc converter provides regulated, isolated power that meets CISPR 32/EN 55032 Class B limits at a full load on a 2-layer printed circuit board (PCB) with ferrites. Popular voltage combinations and the associated output current levels are listed in Table 1 in the data sheet.The ADuM6420A/ADuM6421A/ADuM6422A/ADuM6423A/ADuM6424A eliminate the need for a separate, isolated dc-to-dc converter in 500 mW, isolated designs. The iCoupler chip scale transformer technology is used for isolated logic signals and for the magnetic components of the dc-to-dc converter. The result is a small form factor, total isolation solution.The ADuM6420A/ADuM6421A/ADuM6422A/ADuM6423A/ADuM6424A isolators provide four independent isolation channels. See the Pin Configurations and Function Descriptions in the data sheet for additional information.APPLICATIONS RS-232 transceivers Power supply start-up bias and gate drives Isolated sensor interfaces Automotive on-board charger (OBC) and dc to dc Industrial programmable logic controllers (PLCs)1 Protected by U.S. Patents 5,952,849; 6,873,065; 6,903,578; and 7,075,329. Other patents are pending.

The ADXL343 is a versatile 3-axis, digital-output, low?g MEMS accelerometer. Selectable measurement range and bandwidth, and configurable, built-in motion detection make it suitable for sensing acceleration in a wide variety of applications. Robustness to 10,000 g?of shock and a wide temperature range (?40?C to +85?C) enable use of the accelerometer even in harsh environments.The ADXL343 measures acceleration with high resolution (13-bit) measurement at up to ?16g. Digital output data is formatted as 16-bit twos complement and is accessible through either an SPI (3- or 4-wire) or I2C digital interface. The ADXL343 can measure the static acceleration of gravity in tilt-sensing applications, as well as dynamic acceleration resulting from motion or shock. Its high resolution (3.9 mg/LSB) enables measurement of inclination changes less than 1.0?.Several special sensing functions are provided. Activity and inactivity sensing detect the presence or lack of motion. Tap sensing detects single and double taps in any direction. Free-fall sensing detects if the device is falling. These functions can be mapped individually to either of two interrupt output pins.An integrated memory management system with a 32-level first in, first out (FIFO) buffer can be used to store data to minimize host processor activity and lower overall system power consumption.The ADXL343 is supplied in a small, thin, 3 mm ? 5 mm ? 1 mm, 14-terminal, plastic package.APPLICATIONS Handsets Gaming and pointing devices Hard disk drive (HDD) protection

The ADXL346 Development Board is an easy-to-use tool designed to shorten application development time by providing a ready-to-use platform for data collection and firmware development. The board is pre-configured as a datalogger that can be used to gather data for refining algorithms, tuning thresholds, and generally familiarizing oneself with accelerometer data. Powered by two AAA batteries, the board is completely untethered and integrates seamlessly into portable applications. Logged data is stored on a MicroSD memory card, providing essentially unlimited memory capacity and operating system versatility. Data is stored in a text (.txt) file, so no software installation is required to operate the board or read data. A 2GB MicroSD card and a USB MicroSD card reader are provided with the board. Additionally, the board is fully programmable, providing a hardware platform on which firmware can be tested in parallel with development of application hardware. Communications and processing are performed by an ARM7-based ADuC7024 micro-controller, and firmware is written in C. A programming cable is provided with the board, and a development environment and header files are supplied on this page. Finally, the platform can be duplicated in the final application, having already been tested with the application firmware. Schematics and layout can be found under the Supporting Documentation tab and can be used freely in your application. Note that this board is not configured to display real-time data. For real-time evaluation of the ADXL346, please refer to the Inertial Sensor Evaluation Board. For a simple ADXL346 Breakout Board, refer to the EVAL-ADXL346Z.

The EVAL-ADXL367Z is a simple breakout board that enables easy connection of an ADXL367 into an existing system. The ADXL367 is a nanowatt, 3-axis, digital-output accelerometer whose industry leading low power consumption and built-in features make it ideal for use in a wide variety of applications. Due to its small size, the EVAL-ADXL367Z has minimal effect on performance of the system and of the accelerometer, and thus it is ideal for evaluation of the ADXL367 in an existing system. Note that the ADXL367 must be communicated with digitally via SPI or I2C. No processor is included with the EVAL-ADXL367Z; firmware must be supplied externally by the user. For evaluation boards that include a processor, please see the EVAL-ADXL367-SDP. MARKETS & TECHNOLOGY Industrial Digital Healthcare Prosumer Automotive Aerospace and Defense

The ADXL375 is a small, thin, 3-axis MEMS accelerometer that provides low power consumption and high resolution measurement up to ?200?g. The digital output data is formatted as 16-bit, twos complement data and is accessible through a SPI (3- or 4-wire) or I2C digital interface.An integrated memory management system with a 32-level first in, first out (FIFO) buffer can be used to store data to minimize host processor activity and lower overall system power consumption.Low power modes enable intelligent motion-based power management with threshold sensing and active acceleration measurement at extremely low power dissipation.The ADXL375 is supplied in a small, thin, 3 mm ? 5 mm ? 1 mm, 14-lead LGA.APPLICATIONS Concussion and head trauma detection High force event detection