The MAX2750AUA is a self-contained voltage-controlledoscillator (VCO) intended for use over the 2370MHzto 2470MHz frequency range. The IC combines a fullyintegrated oscillator and output buffer in a miniature 8-pinµMAX® package.The inductor and varactor elements of the tank are integratedon-chip, greatly simplifying application of the part.The only required external components are a couple ofsupply bypass capacitors. The IC provides direct connectionto the VCO tuning voltage input and the VCO bufferoutput. The tuning voltage input range is +0.4V to +2.4V,and the oscillator frequency tuning range is factory adjustedto provide guaranteed limits. The output signal isbuffered by an amplifier stage (internally matched to 50Ω)to provide higher output power and isolate the device fromload impedance variations.The MAX2750AUA operates over a +2.7V to +5.5V supplyvoltage range. Internal regulation of the oscillator supplyvoltage eliminates the need for an external LDOregulator for the VCO. The IC also provides a digitally controlledshutdown mode to permit implementation ofsophisticated power-supply management. In shutdown,the supply current is reduced to less than 2µA.Applications2.4GHz ISM Band

The MAX2831/MAX2832 direct conversion, zero-IF, RF transceivers are designed specifically for 2.4GHz to 2.5GHz 802.11g/b WLAN applications. The MAX2831 completely integrates all circuitry required to implement the RF transceiver function, providing an RF power amplifier (PA), RF-to-baseband receive path, baseband-to-RF transmit path, VCO, frequency synthesizer, crystal oscillator, and baseband/control interface. The MAX2832 integrates the same functional blocks except for the PA. Both devices include a fast-settling sigma-delta RF synthesizer with smaller than 20Hz frequency steps and a digitally tuned crystal oscillator allowing use of a low-cost crystal. The devices also integrate on-chip DC-offset cancellation and I/Q errors and carrier leakage-detection circuits. Only an RF bandpass filter (BPF), crystal, RF switch, and a small number of passive components are needed to form a complete 802.11g/b WLAN RF front-end solution.The MAX2831/MAX2832 completely eliminate the need for an external SAW filter by implementing on-chip monolithic filters for both the receiver and transmitter. The baseband filters are optimized to meet the IEEE® 802.11g standard and proprietary turbo modes up to 40MHz channel bandwidth. These devices are suitable for the full range of 802.11g OFDM data rates (6Mbps to 54Mbps) and 802.11b QPSK and CCK data rates (1Mbps to 11Mbps). The ICs are available in a small, 48-pin TQFN package measuring only 7mm x 7mm x 0.8mm.ApplicationsGeneral 2.4GHz ISM RadiosWi-Fi, PDA, VoIP, and Cellular HandsetsWireless Speakers and Headphones

The MAX4208/MAX4209 ultra-low offset and drift instrumentation amplifiers feature exceptional precision specifications, low power consumption, rail-to-rail output, excellent gain-bandwidth product, and buffered REFIN/MODE input in a very small µMAX® package. These devices use a spread-spectrum, autozeroing technique that constantly measures and corrects the input offset, eliminating drift over time and temperature and the effect of 1/f noise. This technique achieves less than 20µV offset voltage, allows ground-sensing capability, provides ultra-low CMOS input bias current and increased common-mode rejection performance.The MAX4208/MAX4209 provide high-impedance inputs optimized for small-signal differential voltages (±100mV). All devices provide a gain-bandwidth product of 750kHz.The MAX4208 provides an adjustable gain with two external resistors or unity gain with FB connected to OUT. The MAX4209 is available with a fixed gain of 100V/V with ±0.03% (typ) accuracy. Both devices include a reference input (REF) to level-shift the output, allowing for bipolar signals in single-supply applications. In both devices, REFIN/MODE is an input to a precision unity-gain buffer, which sets the REF voltage to level-shift the output. The internal REF buffer allows the reference to be set by a simple resistive divider or an ADC reference without any loading error.The MAX4208/MAX4209 operate with a 2.85V to 5.5V single-supply voltage and consume only 750µA of quiescent current (when the internal buffer is off) and only 1.4µA in shutdown mode. These amplifiers also operate with ±2.5V dual supplies with REF connected to ground and REFIN/MODE to VSS. The MAX4208/MAX4209 are available in space-saving 8-pin µMAX packages and are specified over the automotive operating temperature range (-40°C to +125°C).ApplicationsBattery-Powered Medical EquipmentDifferential Voltage AmplificationIndustrial Process ControlNotebook ComputersPrecision Low-Side Current SenseStrain-Gauge Amplifiers

The MAX4888/MAX4889 high-speed passive switches route PCI Express® (PCIe) data between two possible destinations. The MAX4888 is a quad single-pole/double-throw (4 x SPDT) switch ideally suited for switching twohalf lanes of PCIe data between two destinations. The MAX4889 is an octal single-pole/double-throw (8 x SPDT) switch ideal for switching four half lanes of PCIe data between four destinations. The MAX4888/MAX4889 feature a single digital control input (SEL) to switch signal paths.The MAX4888/MAX4889 are fully specified to operate from a single 3.0V to 3.6V power supply and also operate down to +1.65V. The MAX4888 is available in a 3.5mm x 5.5mm, 28-pin TQFN package. The MAX4889 is available in a 3.5mm x 9.0mm, 42-pin TQFN package. Both devices operate over the -40°C to +85°Ctemperature range.ApplicationsDesktop ComputersLaptopsServers/Storage Area Networks

The MAX4888/MAX4889 high-speed passive switches route PCI Express® (PCIe) data between two possible destinations. The MAX4888 is a quad single-pole/double-throw (4 x SPDT) switch ideally suited for switching twohalf lanes of PCIe data between two destinations. The MAX4889 is an octal single-pole/double-throw (8 x SPDT) switch ideal for switching four half lanes of PCIe data between four destinations. The MAX4888/MAX4889 feature a single digital control input (SEL) to switch signal paths.The MAX4888/MAX4889 are fully specified to operate from a single 3.0V to 3.6V power supply and also operate down to +1.65V. The MAX4888 is available in a 3.5mm x 5.5mm, 28-pin TQFN package. The MAX4889 is available in a 3.5mm x 9.0mm, 42-pin TQFN package. Both devices operate over the -40°C to +85°Ctemperature range.ApplicationsDesktop ComputersLaptopsServers/Storage Area Networks

The MAX4923–MAX4926 overvoltage protection(OVP) controllers protect low-voltage systems againsthigh-voltage faults of up to +28V with an appropriateexternal pFET. When the input voltage exceeds the overvoltagelockout (OVLO) threshold, or falls below theundervoltage lockout (UVLO) threshold, these devicesturn off the pFET to prevent damage to protected componentsand issue a flag to notify the processor of a faultcondition.The typical overvoltage trip level is set to 7.18V(MAX4923), 6.16V (MAX4924), 5.65V (MAX4925), and4.46V (MAX4926). The undervoltage trip level is set to2.44V (typ) for all devices.The input (IN) is ESD protected to ±15kV HBM whenbypassed to ground with a 1µF ceramic capacitor. Alldevices are offered in a small, 6-pin (1.5mm x 1.0mm)µDFN package and are specified over the extended-40°C to +85°C temperature range.ApplicationsCell PhonesDigital Still CamerasMP3 PlayersPDAs and Palmtop Devices

The MAX4927 meets the needs of high-speed differential switching, including that of Gigabit Ethernet (10/100/1000) Base-T switching as well as LVDS and LVPECL switching. The MAX4927 provides enhanced ESD protection up to ±15kV and excellent high-frequency response, making the device especially useful for interfaces that must go to an outside connection.The MAX4927 offers extremely low capacitance (CON), as well as low on-resistance (RON), for low-insertion loss and very wide bandwidth. In addition to the four pairs of DPDT switches, the MAX4927 provides LED switching for laptop computer/docking station use.The MAX4927 is pin-to-pin equivalent to the PI3L500-A and STMUX1000L. The MAX4927 can replace either device in those applications, improving ESD protection and eliminating external ESD components. The MAX4927 is available in a space-saving 56-pin TQFN package and operates over the extended -40°C to+85°C temperature range.ApplicationsBoard-Level Redundancy ProtectionLVDS and LVPECL SwitchingNotebooks and Docking StationsServers and Routers with Ethernet InterfacesSONET/SDH Signal RoutingT3/E3 Redundancy Protection

The MAX4929E low-frequency 2:1 switch is ideal for HDMI™/DVI™ switching applications. The device features a voltage clamp function to protect low-voltage systems at the output. The MAX4929E operates with a single 5V supply or dual or triple supplies. The MAX4929E provides clamping and voltage translation without additional components. All external inputs/outputs are electrostatic-discharge (ESD)-protected to ±6kV Human Body Model (HBM).The MAX4929E is available in 20-pin QSOP and 20-pin, 4mm x 4mm, TQFN packages. The device is specified for the extended -40°C to +85°C operating temperature range.ApplicationsHD MonitorsHD Television ReceiversHigh-Resolution Computer Monitors

The MAX4947/MAX4948 analog switches operate from asingle +1.8V to +5.5V supply. These switches feature alow 30pF (typ) capacitance for high-speed data switchingapplications.The MAX4947 is a triple double-pole/double-throw (DPDT)switch, and the MAX4748 is a hex single-pole/double-throw(SPDT) switch with one control logic input. TheMAX4947 has three logic inputs to control the switches inpairs. The MAX4948 has one logic input and an enableinput (active-low EN) to disable the switches.The MAX4947/MAX4948 are available in small 24-pin(4mm x 4mm) TQFN and 25-bump (2.5mm x 2.5mm)chip-scale packages (UCSP™). ApplicationsCell PhonesPDAsSDIO/Memory StickUART Signal SwitchingUSB Signal Switching

The MAX4947/MAX4948 analog switches operate from asingle +1.8V to +5.5V supply. These switches feature alow 30pF (typ) capacitance for high-speed data switchingapplications.The MAX4947 is a triple double-pole/double-throw (DPDT)switch, and the MAX4748 is a hex single-pole/double-throw(SPDT) switch with one control logic input. TheMAX4947 has three logic inputs to control the switches inpairs. The MAX4948 has one logic input and an enableinput (active-low EN) to disable the switches.The MAX4947/MAX4948 are available in small 24-pin(4mm x 4mm) TQFN and 25-bump (2.5mm x 2.5mm)chip-scale packages (UCSP™). ApplicationsCell PhonesPDAsSDIO/Memory StickUART Signal SwitchingUSB Signal Switching

The MAX4947/MAX4948 analog switches operate from asingle +1.8V to +5.5V supply. These switches feature alow 30pF (typ) capacitance for high-speed data switchingapplications.The MAX4947 is a triple double-pole/double-throw (DPDT)switch, and the MAX4748 is a hex single-pole/double-throw(SPDT) switch with one control logic input. TheMAX4947 has three logic inputs to control the switches inpairs. The MAX4948 has one logic input and an enableinput (active-low EN) to disable the switches.The MAX4947/MAX4948 are available in small 24-pin(4mm x 4mm) TQFN and 25-bump (2.5mm x 2.5mm)chip-scale packages (UCSP™). ApplicationsCell PhonesPDAsSDIO/Memory StickUART Signal SwitchingUSB Signal Switching

The MAX4983E/MAX4984E are high ESD-protected analog switches that combine the low on-capacitance and low on-resistance necessary for high-performance switching applications. COM1 and COM2 are protected against ±15kV ESD without latchup or damage. The devices are ideal for USB 2.0 Hi-Speed applications at 480Mbps. The switches also handle all the requirements for USB low- and full-speed signaling.The MAX4983E/MAX4984E double-pole/double-throw (DPDT) switches are fully specified to operate from a single +2.8V to +5.5V power supply and are protected against a +5.5V short to COM1 and COM2. This feature makes the MAX4983E/MAX4984E fully compliant with the USB 2.0 specification of VBUS fault protection. The devices feature low-threshold-voltage logic inputs, permitting them to be used with low I/O voltage systems. The MAX4983E features an active-low enable input (active-low EN) that when driven high sets the device in shutdown mode. The MAX4984E features an active-high enable input (EN) that when driven low sets the device in shutdown mode. When the device is in shutdown mode, the quiescent supply current is reduced to 0.1µA.The MAX4983E/MAX4984E are available in a space-saving, 10-pin, 1.4mm x 1.8mm UTQFN package, and operate over a -40°C to +85°C temperature range.ApplicationsBus SwitchesCell PhonesDigital Still CamerasGPSNotebook ComputersPDAsVideo Switching

The MAX5091 high-voltage linear regulator is designed to operate from a +5V to +28V input voltage, and withstands up to 40V transients. The device consumes only 45µA of quiescent current at 100µA output current. The MAX5091 delivers up to 100mA of output current with low 50mV maximum dropout voltage. The MAX5091 provides an active-low open-drain microprocessor RESET output. The reset timeout period is programmable and can be set with an external capacitor. The MAX5091 includes an uncommitted comparator for input voltage monitoring/power-fail indication. The device is available with a fixed +5V (MAX5091A) or +3.3V (MAX5091B) output. The MAX5091 is short-circuit protected and includes thermal shutdown.The MAX5091 operates over the -40°C to +125°C automotive temperature range and is available in 8-pin, thermally enhanced TDFN and SO-EP packages.ApplicationsHome Security/SafetyIndustrialTelecom/Networking

The MAX6394 low-power CMOS microprocessor (µP) supervisory circuit is designed to monitor power supplies in µP and digital systems. It offers excellent circuit reliability by providing 1% accurate thresholds over temperature and by eliminating external components and adjustments. The MAX6394 also provides a debounced manual reset input.This device performs a single function: it asserts a reset signal whenever the VCC supply voltage falls below a preset threshold or whenever manual reset is asserted. Active-low RESET remains asserted for an internally programmed interval (reset timeout period) after VCC has risen above the reset threshold or manual reset is deasserted. The MAX6394's open-drain active-low RESET output can be pulled up to a voltage higher than VCC. The MAX6394 comes with factory-trimmed reset threshold voltages from 2.4V to 4.8V. Preset timeout periods of 0.7ms, 14ms, 105ms, and 826ms are also available. The device comes in a SOT143 package.ApplicationsComputersControllersCritical µP and µC Power MonitoringIntelligent InstrumentsPortable/Battery-Powered Equipment

The MAX6394 low-power CMOS microprocessor (µP) supervisory circuit is designed to monitor power supplies in µP and digital systems. It offers excellent circuit reliability by providing 1% accurate thresholds over temperature and by eliminating external components and adjustments. The MAX6394 also provides a debounced manual reset input.This device performs a single function: it asserts a reset signal whenever the VCC supply voltage falls below a preset threshold or whenever manual reset is asserted. Active-low RESET remains asserted for an internally programmed interval (reset timeout period) after VCC has risen above the reset threshold or manual reset is deasserted. The MAX6394's open-drain active-low RESET output can be pulled up to a voltage higher than VCC. The MAX6394 comes with factory-trimmed reset threshold voltages from 2.4V to 4.8V. Preset timeout periods of 0.7ms, 14ms, 105ms, and 826ms are also available. The device comes in a SOT143 package.ApplicationsComputersControllersCritical µP and µC Power MonitoringIntelligent InstrumentsPortable/Battery-Powered Equipment

The MAX6394 low-power CMOS microprocessor (µP) supervisory circuit is designed to monitor power supplies in µP and digital systems. It offers excellent circuit reliability by providing 1% accurate thresholds over temperature and by eliminating external components and adjustments. The MAX6394 also provides a debounced manual reset input.This device performs a single function: it asserts a reset signal whenever the VCC supply voltage falls below a preset threshold or whenever manual reset is asserted. Active-low RESET remains asserted for an internally programmed interval (reset timeout period) after VCC has risen above the reset threshold or manual reset is deasserted. The MAX6394's open-drain active-low RESET output can be pulled up to a voltage higher than VCC. The MAX6394 comes with factory-trimmed reset threshold voltages from 2.4V to 4.8V. Preset timeout periods of 0.7ms, 14ms, 105ms, and 826ms are also available. The device comes in a SOT143 package.ApplicationsComputersControllersCritical µP and µC Power MonitoringIntelligent InstrumentsPortable/Battery-Powered Equipment

The MAX6394 low-power CMOS microprocessor (µP) supervisory circuit is designed to monitor power supplies in µP and digital systems. It offers excellent circuit reliability by providing 1% accurate thresholds over temperature and by eliminating external components and adjustments. The MAX6394 also provides a debounced manual reset input.This device performs a single function: it asserts a reset signal whenever the VCC supply voltage falls below a preset threshold or whenever manual reset is asserted. Active-low RESET remains asserted for an internally programmed interval (reset timeout period) after VCC has risen above the reset threshold or manual reset is deasserted. The MAX6394's open-drain active-low RESET output can be pulled up to a voltage higher than VCC. The MAX6394 comes with factory-trimmed reset threshold voltages from 2.4V to 4.8V. Preset timeout periods of 0.7ms, 14ms, 105ms, and 826ms are also available. The device comes in a SOT143 package.ApplicationsComputersControllersCritical µP and µC Power MonitoringIntelligent InstrumentsPortable/Battery-Powered Equipment

The MAX6394 low-power CMOS microprocessor (µP) supervisory circuit is designed to monitor power supplies in µP and digital systems. It offers excellent circuit reliability by providing 1% accurate thresholds over temperature and by eliminating external components and adjustments. The MAX6394 also provides a debounced manual reset input.This device performs a single function: it asserts a reset signal whenever the VCC supply voltage falls below a preset threshold or whenever manual reset is asserted. Active-low RESET remains asserted for an internally programmed interval (reset timeout period) after VCC has risen above the reset threshold or manual reset is deasserted. The MAX6394's open-drain active-low RESET output can be pulled up to a voltage higher than VCC. The MAX6394 comes with factory-trimmed reset threshold voltages from 2.4V to 4.8V. Preset timeout periods of 0.7ms, 14ms, 105ms, and 826ms are also available. The device comes in a SOT143 package.ApplicationsComputersControllersCritical µP and µC Power MonitoringIntelligent InstrumentsPortable/Battery-Powered Equipment

The MAX6618 PECI(1.0)-to-I²C translator provides an efficient, low-cost solution for PECI(1.0)-to-SMBus/I²C protocol conversion. The PECI(1.0)-compliant host reads temperature data directly from up to four PECI(1.0)-enabled CPUs. This translator will only communicate with CPUs that support PECI 1.0.The I²C interface provides an independent serial communication channel to communicate synchronously with peripheral devices in a multiple master or multiple slave system. This interface allows a maximum serial-data rate of 400kbps.The MAX6618 is designed to operate from a +3.0V to +3.6V supply voltage and ambient temperature range of -20°C to +120°C.ApplicationsDesktop ComputersServersWorkstations

The MAX6636 precision multichannel temperature sensor monitors its own temperature and the temperatures of up to six external diode-connected transistors. All temperature channels have programmable alert thresholds. Channels 1, 4, 5, and 6 also have programmable overtemperature thresholds. When the measured temperature of a channel exceeds the respective threshold, a status bit is set in one of the status registers. Two open-drain outputs, active-low OVERT and active-low ALERT, assert corresponding to these bits in the status register.The 2-wire serial interface supports the standard system management bus (SMBus™) protocols: write byte, read byte, send byte, and receive byte for reading the temperature data and programming the alarm thresholds. The MAX6636 is specified for a -40°C to +125°C operating temperature range and is available in a 20-pin TSSOP package.ApplicationsDesktop ComputersNotebook ComputersServersWorkstations