The MAX9201/MAX9202/MAX9203 high-speed, lowpower,quad/dual/single comparators feature TTL logicoutputs with active internal pullups. Fast propagationdelay (7ns typ at 5mV overdrive) makes these devicesideal for fast A/D converters and sampling circuits, linereceivers, V/F converters, and many other data-discrimination,signal restoration applications.All comparators can be powered from separate analogand digital power supplies or from a single combinedsupply voltage. The analog input common-mode rangeincludes the negative rail, allowing ground sensingwhen powered from a single supply. The MAX9201/MAX9202/MAX9203 consume only 9mW per comparatorwhen powered from a +5V supply.The MAX9202/MAX9203 feature output latches with TTLcompatible inputs. The comparator output states areheld when the latch inputs are driven low. TheMAX9201 provides all the same features as theMAX9202/MAX9203 with the exception of the latches.The MAX9201/MAX9202/MAX9203 are lower power andlower cost upgrades to the MAX901/MAX902/MAX903offering a 50% power savings and smaller packaging.ApplicationsHigh-Speed A/D ConvertersHigh-Speed Data SamplingHigh-Speed Signal Squaring/RestorationHigh-Speed V/F ConvertersInput Trigger CircuitryLine ReceiversPWM CircuitsThreshold Detectors

The MAX921–MAX924 single, dual, and quad micropower, low-voltage comparators feature the lowest power consumption available. These comparators draw less than 4µA supply current over temperature (MAX921/MAX922), and include an internal 1.182V ±1% voltage reference, programmable hysteresis, and TTL/CMOS outputs that sink and source current.Ideal for 3V or 5V single-supply applications, the MAX921–MAX924 operate from a single +2.5V to +11V supply (or a ±1.25V to ±5V dual supply), and each comparator's input voltage range swings from the negative supply rail to within 1.3V of the positive supply.The MAX921–MAX924's unique output stage continuously sources as much as 40mA. And by eliminating power-supply glitches that commonly occur when comparators change logic states, the MAX921–MAX924 minimize parasitic feedback, which makes them easier to use.The single MAX921 and dual MAX923 provide a unique and simple method for adding hysteresis without feedback and complicated equations, simply by using the HYST pin and two resistors.ApplicationsBattery-Powered ApplicationsOscillator CircuitsThreshold DetectorsWindow Comparators

The MAX921–MAX924 single, dual, and quad micropower, low-voltage comparators feature the lowest power consumption available. These comparators draw less than 4µA supply current over temperature (MAX921/MAX922), and include an internal 1.182V ±1% voltage reference, programmable hysteresis, and TTL/CMOS outputs that sink and source current.Ideal for 3V or 5V single-supply applications, the MAX921–MAX924 operate from a single +2.5V to +11V supply (or a ±1.25V to ±5V dual supply), and each comparator's input voltage range swings from the negative supply rail to within 1.3V of the positive supply.The MAX921–MAX924's unique output stage continuously sources as much as 40mA. And by eliminating power-supply glitches that commonly occur when comparators change logic states, the MAX921–MAX924 minimize parasitic feedback, which makes them easier to use.The single MAX921 and dual MAX923 provide a unique and simple method for adding hysteresis without feedback and complicated equations, simply by using the HYST pin and two resistors.ApplicationsBattery-Powered ApplicationsOscillator CircuitsThreshold DetectorsWindow Comparators

The MAX9600/MAX9601/MAX9602 ultra-high-speed comparators feature extremely low propagation delay (500ps). These dual and quad comparators minimize propagation delay skew (10ps) and are designed for low propagation delay dispersion (30ps). These features make them ideal for applications where high-fidelity tracking of narrow pulses and low timing dispersion is critical.The differential input stage accepts a wide range of signals in the common-mode range from (VEE + 3V) to (VCC - 2V). The outputs are complementary digital signals, compatible with ECL and PECL systems, and provide sufficient current to directly drive transmission lines terminated in 50Ω.The MAX9600/MAX9601 dual-channel ECL and dual-channel PECL output comparators incorporate latch enable (LE_, active-low LE_), and hysteresis (HYS_). The complementary latch-enable control permits tracking, track-hold or sample-hold mode of operations. The latch-enables can be driven with standard ECL logic for MAX9600 and PECL logic for MAX9601. The MAX9602 quad-channel PECL output comparator is ideal for high-density packaging in limited board space.The MAX9600/MAX9601 are available in 20-pin TSSOP packages, and the MAX9602 is offered in a 24-pin TSSOP package. The MAX9600/MAX9601/MAX9602 are specified for operation from -40°C to +85°C.ApplicationsHigh-Speed InstrumentationHigh-Speed TriggeringLine Receiving/Signal RestorationScope/Logic Analyzer Front EndsThreshold and Peak DetectionVLSI and High-Speed Memory ATE

The MAX4493/MAX4494/MAX4495 single/dual/quad general-purpose operational amplifiers are designed for use in systems powered with dual supplies from ±2.25V to ±5.5V or with a single supply of +4.5V to+11V. These op amps provide a unity-gain bandwidth of 5MHz with only 770µA of quiescent current per amplifier. The wide input common-mode range extends from 200mV beyond the negative rail to within 1.5V of the positive supply rail while the output swings within 10mV (RL = 100kΩ) of either rail.These amplifiers have excellent (110dB) open-loop gain with very low THD+N of 0.002% (f = 1kHz). The single MAX4493 is available in a tiny 5-pin SC70 package and the dual MAX4494 is available in the space-saving 8-pin SOT23. The quad MAX4495 is available in both 14-pin TSSOP and 14-pin SO packages. All products are rated at the automotive temperature range of -40°C to +125°C.ApplicationsBattery-Powered SystemsDAC Output AmplifiersIndustrial Control SystemsSignal ConditioningVoltage Reference Generators

The MAX406/MAX407/MAX409/MAX417–MAX419 are single, dual, and quad low-voltage, micropower, precision op amps designed for battery-operated systems. They feature a supply current of less than 1.2µA per amplifier that is relatively constant over the entire supply range, which represents a 15 to 20 times improvement over industry-standard micropower op amps. A unique output stage enables these op amps to operate at ultra-low supply current while maintaining linearity under loaded conditions. In addition, the output is capable of sourcing 1.8mA when powered by a 9V battery.The common-mode input-voltage range extends from the negative rail to within 1.1V of the positive supply (for the singes, 1.2V for the duals and quads), and the output stage swings rail-to-rail. The entire family is designed to maintain good DC characteristics over the operating temperature range, minimizing the input referred errors.The MAX406 is a single op amp with two modes of operation: compensated mode and decompensated mode. Floating BW (pin 8) or connecting it to V- internally compensates the amplifier. In this mode, the MAX406 is unity-gain stable with a 5V/ms typical slew rate and an 8kHz gain bandwidth. Connecting BW to V+ puts the MAX406 into decompensated mode with a 20V/ms typical slew rate and a 40kHz gain bandwidth (AVCL ≥ 2V/V).The dual MAX407 and quad MAX418 are internally compensated to be unity-gain stable. The MAX409/MAX417/MAX419 single/dual/quad op amps feature 150kHz typical bandwidth, 75V/ms slew rate, and stability for gains of 10V/V or greater.ApplicationsBattery-Powered SystemsCordless PhonesElectrometer AmplifiersGlucose MetersGPS SolutionsIntrinsically Safe SystemsIP CameraMedical InstrumentsPanel MeterspH MetersPhotodiode Pre-AmpsPower MetersProgrammable Logic Controllers (PLCs)

The MAX406/MAX407/MAX409/MAX417–MAX419 are single, dual, and quad low-voltage, micropower, precision op amps designed for battery-operated systems. They feature a supply current of less than 1.2µA per amplifier that is relatively constant over the entire supply range, which represents a 15 to 20 times improvement over industry-standard micropower op amps. A unique output stage enables these op amps to operate at ultra-low supply current while maintaining linearity under loaded conditions. In addition, the output is capable of sourcing 1.8mA when powered by a 9V battery.The common-mode input-voltage range extends from the negative rail to within 1.1V of the positive supply (for the singes, 1.2V for the duals and quads), and the output stage swings rail-to-rail. The entire family is designed to maintain good DC characteristics over the operating temperature range, minimizing the input referred errors.The MAX406 is a single op amp with two modes of operation: compensated mode and decompensated mode. Floating BW (pin 8) or connecting it to V- internally compensates the amplifier. In this mode, the MAX406 is unity-gain stable with a 5V/ms typical slew rate and an 8kHz gain bandwidth. Connecting BW to V+ puts the MAX406 into decompensated mode with a 20V/ms typical slew rate and a 40kHz gain bandwidth (AVCL ≥ 2V/V).The dual MAX407 and quad MAX418 are internally compensated to be unity-gain stable. The MAX409/MAX417/MAX419 single/dual/quad op amps feature 150kHz typical bandwidth, 75V/ms slew rate, and stability for gains of 10V/V or greater.ApplicationsBattery-Powered SystemsCordless PhonesElectrometer AmplifiersGlucose MetersGPS SolutionsIntrinsically Safe SystemsIP CameraMedical InstrumentsPanel MeterspH MetersPhotodiode Pre-AmpsPower MetersProgrammable Logic Controllers (PLCs)

The MAX4295 mono, switch-mode (Class D) audio power amplifier operates from a single +2.7V to +5.5V supply. The MAX4295 has > 85% efficiency and is capable of delivering 2W continuous power to a 4Ω load, making it ideal for portable multimedia and general-purpose high-power audio applications.The MAX4295 features a total harmonic distortion plus noise (THD+N) of 0.4% (fOSC = 125kHz), low quiescent current of 2.8mA, high efficiency, and clickless power-up and shutdown. The active-low SHDN input disables the device and limits supply current to Other features include a 1A current limit, thermal protection, and undervoltage lockout.The MAX4295 reduces the number of required external components. Internal high-speed power-MOS transistors allow operation as a bridge-tied load (BTL) amplifier. The BTL configuration eliminates the need for isolation capacitors on the output. The frequency-selectable pulse-width modulator (PWM) allows the user to optimize the size and cost of the output filter.The MAX4295 is offered in a space-saving 16-pin QSOP or narrow SO package.ApplicationsAC AmplifiersBattery-Powered SpeakersBoom BoxesCordless PhonesGame CardsPalmtop/Notebook ComputersPDA AudioPortable EquipmentSound Cards

The MAX4298 and MAX4299 are audio system ICs designed for single +5V applications. The MAX4299 features a stereo headphone driver, a microphone amplifier, and a +3.3V linear regulator; the MAX4298 features a stereo headphone driver. The MAX4298/MAX4299 are designed specifically for harsh digital environments where board space is at a premium and the digital power supply is noisy. The design uses innovative design techniques to achieve ultra-high power-supply rejection across the audio signal band while, at the same time, delivering a high-current Rail-to-Rail output drive capability. The chip is designed to drive highly capacitive loads that may be encountered when driving long cables to a remote load such as desktop/notebook headphones or speakers. These devices are fully compliant with PC99 standards.The amplifiers exhibit 115dB of DC power-supply rejection and 80dB at 100kHz. The output amplifiers are capable of driving a 1.5VRMS signal into a 10-kilohm load with 0.0008% THD+N. They can also drive 32Ω headphones to 1.2VRMS with 0.02% distortion. At +3.3V, the linear regulator can output 100mA of current. The MAX4298 is available in a tiny 10-pin µMAX® while the MAX4299 is available in the space-saving 16-pin TSSOP package.ApplicationsComputers: Desktop, Workstation, ServerConsumer AudioCordless PhonesNotebook ComputersPalmtop ComputersPen Entry Palmtops

The MAX4373/MAX4374/MAX4375 low-cost, micropower, high-side current-sense supervisors contain a high-side current-sense amplifier, bandgap reference, and comparator with latching output. They feature a voltage output that eliminates the need for gain-setting resistors, making them ideal for today's notebook computers, cell phones, and other systems where battery/DC current monitoring is critical. High-side current monitoring is especially useful in battery-powered systems since it does not interfere with the ground path of the battery charger. The 0 to +28V input common-mode range is independent of the supply voltage, which ensures that the current-sense feedback remains viable even when connected to a battery pack in deep discharge.The comparator output of the MAX4373/MAX4374/ MAX4375 is latched to provide a turn-off flag that doesn't oscillate. In addition, the MAX4374/MAX4375 contain a second comparator for use in window-detection functions. The MAX4373/MAX4374/MAX4375 are available in three different gain versions (T = +20V/V,F = +50V/V, H = +100V/V) and use an external sense resistor to set the sensitivity of the input voltage to the load current. These features offer a high level of integration, resulting in a simple and compact current-sense solution.The MAX4373/MAX4374/MAX4375 operate from a single +2.7V to +28V supply and consume 50µA. They are specified for the extended operating temperature range (-40°C to +85°C) and are available in 8-pin and 10-pin µMAX® packages.ApplicationsCell PhonesGeneral-System/Board-Level Current MonitoringNotebook ComputersPortable Battery-Powered SystemsPower-Management SystemsPrecision Current SourcesSmart Battery Packs/Chargers