The?AD8494/AD8495/AD8496/AD8497?are precision instrumentation amplifiers with thermocouple cold junction compensators on an integrated circuit. They produce a high level (5 mV/?C) output directly from a thermocouple signal by combining an ice point reference with a precalibrated amplifier. They can be used as standalone thermometers or as switched output setpoint controllers using either a fixed or remote setpoint control.The AD8494/AD8495/AD8496/AD8497 can be powered from a single-ended supply (less than 3 V) and can measure temperatures below 0?C by offsetting the reference input. To minimize self-heating, an unloaded AD849x typically operates with a total supply current of 180 ?A, but it is also capable of delivering in excess of ?5 mA to a load.The AD8494 and AD8496 are precalibrated by laser wafer trimming to match the characteristics of J type (iron-constantan) thermocouples; the AD8495 and AD8497 are laser trimmed to match the characteristics of K type (chromel-alumel) thermo-couples. See Table 1 on the data sheet for the optimized ambient temperature range of each part.The AD8494/AD8495/AD8496/AD8497 allow a wide variety of supply voltages. With a 5 V single supply, the 5 mV/?C output allows the devices to cover nearly 1000 degrees of a thermo-couple?s temperature range.The AD8494/AD8495/AD8496/AD8497 work with 3 V supplies, allowing them to interface directly to lower supply ADCs. They can also work with supplies as large as 36 V in industrial systems that require a wide common-mode input range.Product Highlights Complete, precision laser wafer trimmed thermocouple signal conditioning system in a single IC package. Flexible pinout provides for operation as a setpoint controller or as a standalone Celsius thermometer. Rugged inputs withstand 4 kV ESD and provide over-voltage protection (OVP) up to VS ? 25 V. Differential inputs reject common-mode noise on the thermocouple leads. Reference pin voltage can be offset to measure 0?C on single supplies. Available in a small, 8-lead MSOP that is fully RoHS compliant. Applications J type thermocouple temperature measurement Setpoint controller Celsius thermometer Universal cold junction compensator White goods (oven, stove top) temperature measurements Exhaust gas temperature sensing Catalytic converter temperature sensing div#landing_page_sec ul { padding:0 0 15px 10px; margin:0px; } div#landing_page_sec li { padding:3px 0 2px 20px; margin:0px; list-style:none; background:url(/static/imported-files/embedded_html/images/li_img.gif) no-repeat 7px 9px; display:block; color:#000000; font-family: Arial, Helvetica, sans-serif; }

The AD8556 is a zero-drift, sensor signal amplifier withdigitally programmable gain and output offset. Designed toeasily and accurately convert variable pressure sensor andstrain bridge outputsto a well-defined output voltage range,the AD8556 accurately amplifies many other differential orsingle-ended sensor outputs. The AD8556 uses the ADIpatented low noise auto-zero and DigiTrim? technologies tocreate an incredibly accurate and flexible signal processingsolution in a very compact footprint.Gain is digitally programmable in a wide range from 70 to1,280 through a serial data interface. Gain adjustment canbe fully simulated in-circuit and then permanently programmedwith reliable polyfuse technology. Output offsetvoltage is also digitally programmable and is ratiometric to thesupply voltage. AD8556 also features internal EMI filters on theVNEG, VPOS, FILT and VCLAMP pins.In addition to extremely low input offset voltage, low inputoffset voltage drift, and very high dc and ac CMRR, the AD8556 also includes a pull-up current source at the input pinsand a pull-down current source at the VCLAMP pin. Thisallows open wire and shorted wire fault detection. A low-passfilter function is implemented via a single low cost externalcapacitor. Output clamping set via an external reference voltageallows the AD8556 to drive lower voltage ADCs safely andaccurately.When used in conjunction with an ADC referenced to the samesupply, the system accuracy becomes immune to normal supplyvoltage variations. Output offset voltage can be adjusted with aresolution of better than 0.4% of the difference between VDDand VSS. A lockout trim after gain and offset adjustmentfurther ensures field reliability.The AD8556 is fully specified from ?40?C to +140?C.Operating from single-supply voltages of 2.7 V to 5.5 V, theAD8556 is offered in the 8-lead SOIC_N, and 4 mm ? 4 mm16-lead LFCSP_VQ.ApplicationsAutomotive SensorsPressure and Position SensorsPrecision Current SensingStrain Gages

The ADA4807-1 (single), ADA4807-2 (dual), and ADA4807-4 (quad) are low noise, rail-to-rail input and output, voltage feedback amplifiers. These amplifiers combine low power, low noise, high speed, and dc precision to provide an attractive solution for a wide range of applications from high resolution data acquisition instrumentation to high performance battery-powered and high component density systems where power consumption is of key importance.With only 1.0 mA of supply current per amplifier, the ADA4807-1/ADA4807-2/ADA4807-4 feature the lowest input voltage noise?among high speed, rail-to-rail input/output amplifiers in the industry and offer a wide bandwidth, high slew rate, fast settling time, and excellent distortion performance. Additionally, these amplifiers offer very low input offset voltage and drift performance, making them ideal for driving multiplexed and high throughput?precision 16-/18-bit successive approximation registers (SARs) and 24-bit ?-? ADCs.These amplifiers are fully specified at +3 V, +5 V, and ?5 V supplies and can operate over the industrial ?40?C to +125?C?temperature range.The ADA4807-1 is available in 6-lead SOT-23 and space-saving 6-lead SC70 packages. The ADA4807-2 is available in an 8-lead?MSOP and a compact, 3 mm ? 3 mm, 10-lead LFCSP. The ADA4807-4 is available in a 14-lead TSSOP package.Applications High resolution analog-to-digital converter (ADC) drivers Portable and battery-powered instruments and systems? High component density data acquisition systems Audio signal conditioning Active filters

The ADA4850-1/ADA4850-2 are low price, high speed, voltagefeedbacks rail-to-rail output op amps with ultralow power-down.Despite their low price, the ADA4850-1/ADA4850-2 provideexcellent overall performance and versatility. The 175 MHz,?3 dB bandwidth and 220 V/?s slew rate make these amplifierswell-suited for many general-purpose, high speed applications.The ADA4850-1/ADA4850-2 are designed to operate at supplyvoltages as low as 2.7 V and up to 6 V at 2.4 mA of supplycurrent per amplifier. In power-down mode, the supply currentis less than 150 nA, ideal for battery-powered applications.The ADA4850-1/ADA4850-2 family provides users with a truesingle-supply capability, allowing input signals to extend200 mV below the negative rail and to within 2.2 V of thepositive rail. The output of the amplifier can swing within80 mV of either supply rail.With its combination of low price, excellent differential gain(0.12%), differential phase (0.09?), and 0.1 dB flatness out to14 MHz, these amplifiers are ideal for video applications. The ADA4850-1/ADA4850-2 are designed to work in theextended temperature range of ?40?C to +125?C. Applications Portable multimedia players Video cameras Digital still cameras Consumer video Clock buffers

The ADA4853-1/ADA4853-2/ADA4853-3 are low power, low cost, high speed, rail-to-rail output op amps with ultralow power disables that are ideal for portable consumer electronics. Despite their low price, the ADA4853-1/ADA4853-2/ADA4853-3 provide excellent overall performance and versatility. The 100 MHz, ?3 dB bandwidth, and 120 V/?s slew rate make these amplifiers well-suited for many general-purpose, high speed applications.The ADA4853-1/ADA4853-2/ADA4853-3 voltage feedback op amps are designed to operate at supply voltages as low as 2.65 V and up to 5 V using only 1.4 mA of supply current per amplifier. To further reduce power consumption, the amplifiers are equipped with a power-down mode that lowers the supply current to less than 1.5 ?A maximum, making them ideal in battery-powered applications.The ADA4853-1/ADA4853-2/ADA4853-3 provide users with a true single-supply capability, allowing input signals to extend 200 mV below the negative rail and to within 1.2 V of the positive rail. On the output, the amplifiers can swing within 200 mV of either supply rail.With their combination of low price, excellent differential gain (0.2%), differential phase (0.10?), and 0.5 dB flatness out to 22 MHz, these amplifiers are ideal for video applications.The ADA4853-1 is available in a 6-lead SC70, the ADA4853-2 is available in a 16-lead LFCSP_WQ, and the ADA4853-3 is available in both a 16-lead LFCSP_WQ and a 14-lead TSSOP. The ADA4853-1 temperature range is ?40?C to +85?C while the ADA4853-2/ADA4853-3 temperature range is ?40?C to +105?C.Applications Automotive infotainment systems Automotive safety systems Portable multimedia players Video cameras Digital still cameras Consumer video Clock buffer

The ADA4855-3 (triple) is a single-supply, rail-to-rail output operational amplifier. It provides excellent high speed performance with 410 MHz, ?3 dB bandwidth and a slew rate of 870 V/?s. It has a wide input common-mode voltage range that extends from 0.2 V below ground to 1 V below the positive rail.In addition, the output voltage swings within 100 mV of either supply rail, making this rail-to-rail operational amplifier easy to use on single-supply voltages as low as 3.3 V. The ADA4855-3 offers a typical low power of 7.8 mA per amplifier and is capable of delivering up to 57 mA of load current. It also features a power-down function for power sensitive applications that reduces the supply current down to 1 mA. The ADA4855-3 is available in a 16-lead LFCSP and is designed to work over the extended industrial temperature range of ?40?C to +105?C.ApplicationsProfessional videoConsumer videoImagingInstrumentationBase stationsActive filters Data Sheet, Rev. 0, 11/2008

The ADA4922-1 is a differential driver for 16-bit to 18-bitanalog-to-digital converters (ADCs) that have differential inputranges up to ?20 V. Configured as an easy-to-use, single-ended-to-differentialamplifier, the ADA4922-1 requires no externalcomponents to drive ADCs. The ADA4922-1 provides essentialbenefits such as low distortion and high SNR that are requiredfor driving ADCs with resolutions up to 18 bits.With a wide supply voltage range (5 V to 26 V), high inputimpedance, and fixed differential gain of 2, the ADA4922-1 isdesigned to drive ADCs found to in a variety of applications,including industrial instrumentation. The ADA4922-1 is manufactured on Analog Devices, Inc.,proprietary, second-generation XFCB process that enables theamplifier to achieve excellent noise and distortion performanceon high supply voltages.The ADA4922-1 is available in an 8-lead 3 mm ? 3 mm LFCSPas well as an 8-lead SOIC package. Both packages are equippedwith an exposed paddle for more efficient heat transfer. TheADA4922-1 is rated to work over the extended industrialtemperature range, ?40?C to +85?C. Applications High voltage data acquisition systems Industrial instrumentation Spectrum analysis ATE Medical instruments

The ADA4945-1 is a low noise, low distortion, fully differential amplifier with two selectable power modes. The device operates over a broad power supply range of 3 V to 10 V. The low dc offset, dc offset drift, and excellent dynamic performance of the ADA4945-1 makes it well suited for a variety of data acquisition and signal processing applications. The device is an ideal choice for driving high resolution, high performance successive approximation register (SAR) and ?-? analog-to-digital converters (ADCs) on 4 mA of quiescent current (full power mode). The device can also be selected to operate on 1.4 mA of quiescent current (low power mode) to scale the power consumption to the desired performance necessary for an ADC drive application. The adjustable common-mode voltage allows the ADA4945-1 to match the input common-mode voltage of multiple ADCs. The internal common-mode feedback loop provides exceptional output balance, as well as suppression of even order harmonic distortion products.With the ADA4945-1, differential gain configurations are achieved with a simple external feedback network of four resistors determining the closed-loop gain of the amplifier. The ADA4945-1 is fabricated using Analog Devices, Inc., proprietary, silicon germanium (SiGe), complementary bipolar process, enabling the device to achieve low levels of distortion with an input voltage noise of only 1.8 nV/?Hz (full power mode).The ADA4945-1 is available in a RoHS-complaint, 3 mm ? 3 mm, 16-lead LFCSP. The ADA4945-1 is specified to operate from ?40?C to +125?C.Applications Low power ?-?, PulSAR?, and SAR ADC drivers Single-ended to differential converters Differential buffers Medical imaging Process control Portable electronics

The Analog Devices, Inc., amplifier mezzanine card (AMC) analog-to-digital converter (ADC) driver evaluates the performance of amplifiers in 8-lead, single and dual SOIC, 6-lead single SOT23, 8-lead dual MSOP, and 16-lead LFCSP packages. This add on board can be inserted on ADC evaluation boards using its 7-pin header. Figure 1 shows the AMC mounted on an Analog Devices, Inc., ADC evaluation board. The AMC can support any of Analog Devices operational amplifiers and ADC drivers in different packages. The user can configure the ADC driver as a Sallen-Key low-pass, high-pass, or band-pass filter, as a multiple feedback low-pass, high-pass, or band-pass filter, or as an inverting and noninverting operational amplifier. The user can also configure the AMC to drive a single-ended, fully differential, or a single-ended signal to a differential ADC. Optimized power and ground planes ensure low noise and high speed operation. Component placement and power supply bypassing are optimized for maximum circuit flexibility and performance. The AMC evaluation board accepts 0402 or 0603 surface mount technology (SMT) components, 1206 bypass capacitors, and 2.54 mm headers. All components are placed on the primary side. No components are placed on the secondary side.

The Analog Devices, Inc., amplifier mezzanine card (AMC) analog-to-digital converter (ADC) driver evaluates the performance of amplifiers in 8-lead, single and dual SOIC, 6-lead single SOT23, 8-lead dual MSOP, and 16-lead LFCSP packages. This add on board can be inserted on ADC evaluation boards using its 7-pin header. Figure 1 shows the AMC mounted on an Analog Devices, Inc., ADC evaluation board. The AMC can support any of Analog Devices operational amplifiers and ADC drivers in different packages. The user can configure the ADC driver as a Sallen-Key low-pass, high-pass, or band-pass filter, as a multiple feedback low-pass, high-pass, or band-pass filter, or as an inverting and noninverting operational amplifier. The user can also configure the AMC to drive a single-ended, fully differential, or a single-ended signal to a differential ADC. Optimized power and ground planes ensure low noise and high speed operation. Component placement and power supply bypassing are optimized for maximum circuit flexibility and performance. The AMC evaluation board accepts 0402 or 0603 surface mount technology (SMT) components, 1206 bypass capacitors, and 2.54 mm headers. All components are placed on the primary side. No components are placed on the secondary side.