The AD7766/AD7766-1/AD7766-2 are high performance,24-bit, oversampled SAR analog-to-digital converters (ADCs).The AD7766/AD7766-1/AD7766-2 combine the benefits of alarge dynamic range and input bandwidth, consuming 15 mW,10.5 mW, and 8.5 mW power, respectively, and are contained ina 16-lead TSSOP package.Ideal for ultralow power data acquisition (such as PCI- and USBbasedsystems), the AD7766/AD7766-1/AD7766-2 provide 24-bitresolution. The combination of exceptional SNR, wide dynamicrange, and outstanding dc accuracy make the AD7766/AD7766-1/AD7766-2 ideally suited for measuring small signal changes over awide dynamic range. This is particularly suitable for applicationswhere small changes on the input are measured on larger ac ordc signals. In such an application, the AD7766/AD7766-1/AD7766-2 accurately gather both ac and dc information.The AD7766/AD7766-1/AD7766-2 include an on-board digitalfilter (complete with linear phase response) that acts to eliminateout-of-band noise by filtering the oversampled input voltage.The oversampled architecture also reduces front-end antialiasrequirements. Other features of the AD7766/AD7766-1/AD7766-2include a SYNC/PD (synchronization/power-down) pin, allowingthe synchronization of multiple AD7766/AD7766-1/AD7766-2devices. The addition of an SDI pin provides the option of daisychaining multiple AD7766/AD7766-1/AD7766-2 devices.The AD7766/AD7766-1/AD7766-2 operate from a 2.5 V supplyusing a 5 V reference. The devices operate from ?40?C to +105?C. Applications Low power PCI/USB data acquisition systems Low power wireless acquisition systems Vibration analysis Instrumentation High precision medical acquisition

The AD7262/AD7262-5 are dual, 12-bit, high speed, low power, successive approximation ADCs that operate from a single 5 V power supply. The AD7262 features throughput rates of up to 1 MSPS per on-chip ADC. The AD7262-5 features throughput rates of up to 500 kSPS. Two complete ADC functions allow simultaneous sampling and conversion of two channels. Each ADC is preceded by a true differential analog input with a PGA. There are 14 gain settings available: ?1, ?2, ?3, ?4, ?6, ?8, ?12, ?16, ?24, ?32, ?48, ?64, ?96, and ?128.The AD7262/AD7262-5 contain four comparators. Comparator A and Comparator B are optimized for low power, while Comparator C and Comparator D have fast propagation delays. The AD7262/AD7262-5 feature a calibration function to remove any device offset error and programmable gain adjust registers to allow for input path (for example, sensor) offset and gain compensation. The AD7262/AD7262-5 have an on-chip 2.5 V reference that can be disabled if an external reference is preferred.The AD7262/AD7262-5 are ideally suited for monitoring small amplitude signals from a variety of sensors. They include all the functionality needed for monitoring the position feedback signals from a variety of analog encoders used in motor control systems.Product Highlights Integrated PGA with a variety of flexible gain settings to allow detection and conversion of low level analog signals. Each PGA is followed by a dual simultaneous sampling ADC, featuring throughput rates of 1 MSPS per ADC for the AD7262. The conversion results of both ADCs are simultaneously available on separate data lines or in succession on one data line if only one serial port is available. Four integrated comparators that can be used to count signals from pole sensors in motor control applications. Internal 2.5 V reference.

The?AD7792/AD7793 are low power, low noise, complete analog front ends for high precision measurement applications. The AD7792/AD7793 contain a low noise 16-/24-bit ?-? ADC with three differential analog inputs. The on-chip, low noise instrumentation amplifier means that signals of small amplitude can be interfaced directly to the ADC. With a gain setting of 64, the rms noise is 40 nV when the update rate equals 4.17 Hz.The devices contain a precision low noise, low drift internal band gap reference and can accept an external differential reference. Other on-chip features include programmable excitation current sources, burnout currents, and a bias voltage generator. The bias voltage generator sets the common-mode voltage of a channel to AVDD/2The devices can be operated with either the internal clock or an external clock. The output data rate from the parts is software-programmable and can be varied from 4.17 Hz to 470 Hz.The parts operate with a power supply from 2.7 V to 5.25 V. They consume a current of 400 ?A typical and are housed in a 16-lead TSSOP package.Applications Thermocouple measurements RTD measurements Thermistor measurements Gas analysis Industrial process control Instrumentation Portable instrumentation Blood analysis Smart transmitters Liquid/gas chromatography 6-digit DVM

The AD7794/AD7795 are low power, low noise, complete analog front ends for high precision measurement applications. They contain a low noise, 24-/16-bit ?-? ADC with six differential inputs. The on-chip low noise instrumentation amplifier means that signals of small amplitude can be interfaced directly to the ADC.Each device contains a precision, low noise, low drift internal band gap reference, and can also accept up to two external differential references. Other on-chip features include programmable excitation current sources, burnout currents, and a bias voltage generator that is used to set the common-mode voltage of a channel to AVDD/2. The low-side power switch can be used to power down bridge sensors between conversions, minimizing the system?s power consumption. The AD7794/AD7795 can operate with either an internal clock or an external clock. The output data rate from each part can vary from 4.17 Hz to 470 Hz.Both parts operate with a power supply from 2.7 V to 5.25 V. The B-grade parts (AD7794 and AD7795) are specified for a temperature range of ?40?C to +105?C while the C-grade part (AD7794) is specified for a temperature range of ?40?C to +125?C. They consume a current of 400 ?A typical and are housed in a 24-lead TSSOP.Applications Temperature measurement Pressure measurement Weigh scales Strain gage transducers Gas analysis

The LTC2933 is an EEPROM configurable voltage supervisor which can simultaneously monitor up to six power supply voltage inputs. Each voltage detector offers I2C programmable over/undervoltage thresholds in various ranges and increments.Two general purpose inputs (GPI) can be configured as programmable manual reset (MR), UV disable (UVDIS), margin (MARG) or auxiliary comparator (AUXC) inputs. Three general purpose pins (GPIO) can be configured for input or output operation. When configured as an input, a GPIO pin can be mapped to any other GPIO configured as output. The GPIO pins can also be configured as ALERT or fault outputs. Faults can be configured with programmable delay-on-release times. Output type and polarity are also configurable.Status and history registers log faults and can be polled via the I2C interface. A fault log snapshot is also backed up in internal EEPROM. All parameters are programmable via the I2C interface. Configuration EEPROM supports autonomous operation without additional software.Applications High Availability Computer Systems Network Servers Telecom Equipment Data Storage

Power Management IC Development Tools Battery Backup System Manager

The AD5371 contains 40 14-bit DACs in a single 80-lead LQFP or 100-ball CSP_BGA. The device provides buffered voltage outputs with a span of 4? the reference voltage. The gain and offset of each DAC can be independently trimmed to remove errors. For even greater flexibility, the device is divided into five groups of eight DACs. Three offset DACs allow the output range of the groups to be adjusted. Group 0 can be adjusted by Offset DAC 0, Group 1 can be adjusted by Offset DAC 1, and Group 2 to Group 4 can be adjusted by Offset DAC 2.The AD5371 offers guaranteed operation over a wide supply range, with VSS from ?16.5 V to ?4.5 V and VDD from 9 V to 16.5 V. The output amplifier headroom requirement is 1.4 V operating with a load current of 1 mA.The AD5371 has a high speed serial interface that is compatible with SPI, QSPI?, MICROWIRE?, and DSP interface standards and can handle clock speeds of up to 50 MHz. It also has a 100 MHz low voltage differential signaling (LVDS) serial interface.The DAC registers are updated on reception of new data. All the outputs can be updated simultaneously by taking the LDAC input low. Each channel has a programmable gain and an offset adjust register to allow removal of gain and offset errors.Each DAC output is gained and buffered on chip with respect to an external SIGGNDx input. The DAC outputs can also be switched to SIGGNDx via the CLR pin.APPLICATIONS Level setting in automatic test equipment (ATE) Variable optical attenuators (VOA) Optical switches Industrial control systems Instrumentation

EVAL BOARD FOR ADL5354

BOARD EVAL FOR ADD8504

The ADM1278 is a hot swap controller that allows a circuit board to be removed from or inserted into a live backplane. It also features current, voltage, power, and temperature readback via an integrated 12-bit analog-to-digital converter (ADC), accessed using a PMBus? interface. The load current is measured using an internal current sense amplifier that measures the voltage across a sense resistor in the power path via the HS+ and HS? pins. A default current limit of 20 mV is set, but this limit can be adjusted, if required.The ADM1278 limits the current through the sense resistor by controlling the gate voltage of an external N-channel FET in the power path, via the GATE pin. The sense voltage, and therefore the load current, is maintained below the preset maximum. The ADM1278 protects the external FET by limiting the time that the FET remains on while the current is at its maximum value.This current-limit time is set by the choice of capacitor connected to the TIMER pin. In addition, a constant power foldback scheme is used to control the power dissipation in the MOSFET during power-up and fault conditions. The level of this power, along with the TIMER regulation time, can be set to ensure that the MOSFET remains within safe operating area (SOA) limits.In case of a short-circuit event, a fast internal overcurrent detector responds within 320 ns and signals the gate to shut down. A 1500 mA pull-down device ensures a fast FET response.The ADM1278 features overvoltage (OV) and undervoltage (UV) protection, programmed using external resistor dividers on the UV and OV pins. A PWRGD signal can be used to detect when the output supply is valid, using the PWGIN pin to accurately monitor the output.The ADM1278 is available in a 32-lead LFCSP with a RETRY pin that can be configured for automatic retry or latch-off when an overcurrent fault occurs.Applications Servers Power monitoring and control/power budgeting Telecommunication and data communication equipment?