The AD8065/AD80661 FastFET™ amplifiers are voltage feedback amplifiers with FET inputs offering high performance and ease of use. The AD8065 is a single amplifier, and the AD8066 is a dual amplifier. These amplifiers are developed in the Analog Devices, Inc. proprietary XFCB process and allow exceptionally low noise operation (7.0 nV/√Hz and 0.6 fA/√Hz) as well as very high input impedance.With a wide supply voltage range from 5 V to 24 V, the ability to operate on single supplies, and a bandwidth of 145 MHz, the AD8065/AD8066 are designed to work in a variety of applications. For added versatility, the amplifiers also contain rail-to-rail outputs.Despite the low cost, the amplifiers provide excellent overall performance. The differential gain and phase errors of 0.02% and 0.02°, respectively, along with 0.1 dB flatness out to 7 MHz, make these amplifiers ideal for video applications. Additionally, they offer a high slew rate of 180 V/µs, excellent distortion (SFDR of −88 dBc @ 1 MHz), extremely high common-mode rejection of −100 dB, and a low input offset voltage of 1.5 mV maximum under warmed up conditions. The AD8065/AD8066 operate using only a 6.4 mA/amplifier typical supply current and are capable of delivering up to 30 mA of load current.The AD8065/AD8066 are high performance, high speed, FET input amplifiers available in small packages: SOIC-8, MSOP-8, and SOT-23-5. They are rated to work over the industrial temperature range of −40°C to +85°C.The AD8065WARTZ-R7 is fully qualified for automotive applications. It is rated to operate over the extended temperature range (−40°C to +105°C), up to a maximum supply voltage range of ±5 V onlyApplications Automotive driver assistance systems Photodiode preamps Filters A/D drivers Level shifting Buffering

The AD8214 is a fast response, high common-mode voltage, current shunt comparator. The device operates on the high side rail of any DC current sensing application, provided the voltage is between 5 V and 65 V. Internally, the AD8214 features a fast comparator that is optimized for high side operation. An internal Zener regulator powers the circuit with respect to the high side DC rail. In addition, user access to this 2.4V regulator, allows for setting a comparator threshold voltage via external resistors. The AD8214 will compare the voltage across the shunt resistor to this user-selected threshold, and the AD8214 output will change states from low to high, indicating the current across the shunt has crossed the threshold level.The input to output response time of the AD8214 is typically less than 100 ns. This makes the device optimal for overcurrent protection in applications such as motor and solenoid control. Built-in comparator hysteresis means that once the current across the shunt falls back to a normal limit, the AD8214 output will change states to its original level.The AD8214 is available in an 8-lead MSOP package. The operating temperature range is −40°C to +125°C, and the device is fully qualified for automotive applications.ApplicationsOvercurrent protection Motor controls Transmission controls Diesel injection controls DC-to-DC converters Power supplies Batteries

The AD8251 is an instrumentation amplifier with digitally programmable gains that has GΩ input impedance, low output noise, and low distortion, making it suitable for interfacing with sensors and driving high sample rate analog-to-digital converters (ADCs). It has high bandwidth of 10 MHz, low THD of −110 dB, and fast settling time of 785 ns (maximum) to 0.001%. Offset drift and gain drift are guaranteed to 1.8 μV/°C and 10 ppm/°C, respectively, for G = 8. In addition to its wide input common voltage range, it boasts a high common-mode rejection of 80 dB at G = 1 from dc to 50 kHz. The combination of precision dc performance coupled with high speed capabilities makes the AD8251 an excellent candidate for data acquisition. Furthermore, this monolithic solution simplifies design and manufacturing and boosts performance of instrumentation by maintaining a tight match of internal resistors and amplifiers. The AD8251 user interface consists of a parallel port that allows users to set the gain in one of two different ways (see Figure 1 in data sheet for the functional block diagram). A 2-bit word sent via a bus can be latched using the WR input. An alternative is to use transparent gain mode where the state of logic levels at the gain port determines the gain. The AD8251 is available in a 10-lead MSOP package and is specified over the −40°C to +85°C temperature range, making it an excellent solution for applications where size and packing density are important considerations. ApplicationsData acquisition Biomedical analysis Test and measurement

The AD8253 is an instrumentation amplifier with digitally programmable gains that has gigaohm (GΩ) input impedance, low output noise, and low distortion, making it suitable for interfacing with sensors and driving high sample rate analog-to-digital converters (ADCs).It has a high bandwidth of 10 MHz, low THD of −110 dB, and fast settling time of 780 ns (maximum) to 0.001%. Offset drift and gain drift are guaranteed to 1.2 µV/°C and 10 ppm/°C, respectively, for G = 1000. In addition to its wide input common voltage range, it boasts a high common-mode rejection of 100 dB at G = 1000 from dc to 20 kHz. The combination of precision dc performance coupled with high speed capabilities makes the AD8253 an excellent candidate for data acquisition. Furthermore, this monolithic solution simplifies design and manufacturing and boosts performance of instrumentation by maintaining a tight match of internal resistors and amplifiers.The AD8253 user interface consists of a parallel port that allows users to set the gain in one of two different ways (see Figure 1 for the functional block diagram). A 2-bit word sent via a bus can be latched using the WR input. An alternative is to use transparent gain mode, where the state of logic levels at the gain port determines the gain.The AD8253 is available in a 10-lead MSOP package and is specified over the −40°C to +85°C temperature range, making it an excellent solution for applications where size and packing density are important considerations.ApplicationsData acquisition Biomedical analysis Test and measurement

The AD8646 and the AD8647 are the dual, and the AD8648 isthe quad, rail-to-rail, input and output, single-supply amplifiersfeaturing low offset voltage, wide signal bandwidth, low inputvoltage, and low current noise. The AD8647 also has a lowpower shutdown function.The combination of 24 MHz bandwidth, low offset, low noise,and very low input bias current makes these amplifiers useful ina wide variety of applications. Filters, integrators, photodiodeamplifiers, and high impedance sensors all benefit from thecombination of performance features. AC applications benefitfrom the wide bandwidth and low distortion. The AD8646/AD8647/AD8648 offer high output drive capability, which isexcellent for audio line drivers and other low impedanceapplications. The AD8646 and AD8648 are available forautomotive applications (see the Ordering Guide).Applications include portable and low powered instrumentation,audio amplification for portable devices, portable phoneheadsets, barcode scanners, and multipole filters. The ability toswing rail to rail at both the input and output enables designersto buffer CMOS ADCs, DACs, ASICs, and other wide outputswing devices in single-supply systems.Applications Battery-powered instruments Multipole filters ADC front ends Sensors Barcode scanners ASIC input or output amplifiers Audio amplifiers Photodiode amplifiers Datapath/mux/switch control

The AD8663 / AD8667 / AD8669 are rail-to-rail output amplifiersthat use the Analog Devices, Inc., patented DigiTrim® trimmingtechnique to achieve low offset voltage. The AD8663 / AD8667 /AD8669 feature an extended operating range with supplyvoltages up to 16 V. They also feature low input bias current,low input offset voltage, and low current noise.The combination of low offset, very low input bias current, anda wide supply range makes these amplifiers useful in a wide varietyof applications usually associated with higher priced JFET amplifiers.Systems using high impedance sensors, such as photodiodes,benefit from the combination of low input bias current, lownoise, low offset, and wide bandwidth.The ability to operate the device for single (5 V to 16 V) or dualsupplies (±2.5 V to ±8 V) supports many applications. The railto-railoutputs provide increased dynamic range to drive lowfrequency data converters. The low bias current drift is wellsuitedfor precision I-to-V converters. The combination ofprecision offset, offset drift, and low noise also make the opamps ideal for gain, dc offset adjust, and active filter in bothinstrumentation and medical applications. These low powerop amps can be used in IR thermometers, pH and ORP instruments,pressure transducer front ends, and other sensor signalconditioning circuits that are used in remote or wirelessapplications.The AD8663 / AD8667 / AD8669 are specified over the extendedindustrial temperature range of −40°C to +125°C. The singleAD8663 is available in a narrow 8-lead SOIC package and a verythin, 8-lead LFCSP. The dual AD8667 is available in a narrow8-lead SOIC package and an 8-lead MSOP. The quad AD8669is available in a 14-lead SOIC and 14-lead small TSSOP. Applications Sensor front ends Transimpedance amplifiers Electrometer applications Photodiode amplification Low power ADC drivers Medical diagnostic instruments pH and ORP meters and probes DAC or REF buffers

The AD8675 precision operational amplifier has ultralow offset, drift, and voltage noise combined with very low input bias currents over the full operating temperature range. The AD8675 is a precision, wide bandwidth op amp featuring rail-to-rail output swings and very low noise. Operation is fully specified from ±5 V to ±15 V.The AD8675 features a rail-to-rail output like that of the OP184, but with wide bandwidth and even lower voltage noise, com-bined with the precision and low power consumption like that of the industry-standard OP07 amplifier. Unlike other low noise, rail-to-rail op amps, the AD8675 has very low input bias current and low input current noise.With typical offset voltage of only 10 μV, offset drift of 0.2 μV/°C, and noise of only 0.10 μV p-p (0.1 Hz to 10 Hz), the AD8675 is perfectly suited for applications where large error sources cannot be tolerated. For applications with even lower offset tolerances, the proprietary nulling capability allows a combination of both device and system offset errors up to 3.5 mV (referred to the input) to be compensated externally. Unlike previous circuits, the AD8675 accommodates this adjustment without adversely affecting the offset drift, CMRR, and PSRR of the amplifier. Precision instrumentation, PLL, and other precision filter circuits, position and pressure sensors, medical instrumentation, and strain gage amplifiers benefit greatly from the very low noise, low input bias current, and wide bandwidth. Many systems can take advantage of the low noise, dc precision, and rail-to-rail output swing provided by the AD8675 to maximize SNR and dynamic range.The smaller packages and low power consumption afforded by the AD8675 allow maximum channel density or minimum board size for space-critical equipment.The AD8675 is specified for the extended industrial temperature range (−40°C to +125°C). The AD8675 amplifier is available in the tiny 8-lead MSOP, and the popular 8-lead, narrow SOIC, RoHS compliant packages. MSOP packaged devices are only available in tape and reel format.Applications Precision instrumentation PLL filters Laser diode control loops Strain gage amplifiers Medical instrumentation Thermocouple amplifiers

The ADA4000-1 / ADA4000-2 / ADA4000-4 are junction fieldeffect transistor (JFET) input operational amplifiers featuringprecision, very low bias current, and low power. Combininghigh input impedance, low input bias current, wide bandwidth,fast slew rate, and fast settling time, the ADA4000-1 / ADA4000-2 / ADA4000-4 are ideal amplifiers for driving analog-to-digitalinputs and buffering digital-to-analog converter outputs. Theinput common-mode voltage includes the positive power supply,which makes the device an excellent choice for high-side signalconditioning.Additional applications for the ADA4000-1 / ADA4000-2 / ADA4000-4 include electronic instruments, automated testequipment (ATE) amplification, buffering, integrator circuits,instrumentation-quality photodiode amplification, and fastprecision filters (including phase-locked loop filters). The devicesalso include utility functions, such as reference buffering, levelshifting, control input/output interface, power supply control,and monitoring functions.Applications Reference gain/buffers Level shift/driving Active filters Power line monitoring/control Current/voltage sense or monitoring Data acquisition Sample-and-hold circuits Integrators

The AD5305 / AD5315 / AD5325 are quad 8-, 10- and 12-bit buffered voltage output DACs in a 10-lead microSOIC package that operate from a single 2.5 V to 5.5 V supply consuming 500 µA at 3 V. Their on-chip output amplifiers allow rail-to-rail output swing with a slew rate of 0.7 V/µs. A 2-wire serial interface is used which operates at clock rates up to 400 kHz. This interface is SMBus-compatible at VDD < 3.6 V. Multiple devices can be placed on the same bus.PRODUCT HIGHLIGHTS Available in a 10-lead MicroSOIC package Low power, single supply operation from 2.5 V to 5.5 V supply Consumes 1.5mW at 3 V and 3 mW at 5 V Rail-to-Rail output with a slew rate of 0.7 V/µs Multiple devices can share the same bus Serial interface with clock rates up to 400 kHz Pin- and Software-Compatible with the AD5305 (8-Bit) and the AD5325 (12-Bit) I2C (Inter-IC) is a trademark of Philips Semiconductors.

The ADM1191 is an integrated current sense amplifier that offers digital current and voltage monitoring via an on-chip, 12-bit analog-to-digital converter (ADC), communicated through an I2C interface. An internal current sense amplifier senses voltage across the sense resistor in the power path via the VCC pin and the SENSE pin.A 12-bit ADC can measure the current seen in the sense resistor, as well as the supply voltage on the VCC pin.An industry-standard I2C interface allows a controller to read current and voltage data from the ADC. Measurements can be initiated by an I2C command or via the convert (CONV) pin. The CONV pin is especially useful for synchronizing reads on multiple ADM1191 devices. Alternatively, the ADC can run continuously, and the user can read the latest conversion data whenever it is required. Up to 16 unique I2C addresses can be created, depending on the way the A0 pin and the A1 pin are connected.A SETV pin is also included. A voltage applied to this pin is internally compared to the output voltage on the current sense amplifier. The output of the SETV comparator asserts when the current sense amplifier output exceeds the SETV voltage. When this event occurs, the ALERTB output asserts.The ALERTB output can be used as a flag to warn a micro-controller or field programmable gate array (FPGA) of an overcurrent condition. ALERTB outputs of multiple ADM1191 devices can be tied together and used as a combined alert.The ADM1191 is packaged in a 10-lead MSOP.APPLICATIONS Power monitoring/power budgeting Central office equipment Telecommunication and data communication equipment PCs/servers