MAXIM Manuals (Industrial)

The MAX4230–MAX4234 single/dual/quad, high-output-drive CMOS op amps feature 200mA of peak output current, rail-to-rail input, and output capability from a single 2.7V to 5.5V supply. These amplifiers exhibit a high slew rate of 10V/µs and a gain-bandwidth product (GBWP) of 10MHz. The MAX4230–MAX4234 can drive typical headset levels (32Ω), as well as bias an RF power amplifier (PA) in wireless handset applications. The MAX4230 comes in a tiny 5-pin SC70 package and the MAX4231, single with shutdown, is offered in a 6-pin SC70 package and in 1.5mm x 1.0mm UCSP and thin µDFN packages. The dual op-amp MAX4233 is offered in the space-saving 10-bump chip-scale package (UCSP™), providing the smallest footprint area for a dual op amp with shutdown. These op amps are designed to be part of the PA control circuitry, biasing RF PAs in wireless headsets. The MAX4231/MAX4233 offer a SHDN feature that drives the output low. This ensures that the RF PA is fully disabled when needed, preventing unconverted signals to the RF antenna. The MAX4230 family offers low offsets, wide bandwidth, and high-output drive in a tiny 2.1mm x 2.0mm space-saving SC70 package. These parts are offered over the automotive temperature range (-40°C to +125°C).

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The MAX9550/MAX9551/MAX9552 are three VCOM drive buffers that provide a VCOM source for TFT LCDs. They can provide high current to quickly restore the VCOM voltage, making them ideal for TFT LCDs. The output settles to within 0.1% of VOUT in less than 2µs. In addition, the MAX9550/MAX9551/MAX9552 can directly drive the capacitive load in the VCOM layer of the TFT LCDs without the need for a series resistor. The MAX9550/MAX9551/MAX9552 are single-, dual-, and quad-channel VCOM amplifiers, respectively. The MAX9550/MAX9551/MAX9552 can drive up to 800mA of peak current per channel and operate up to 20V. The devices feature soft-start to reduce inrush current, output short-circuit protection, and thermal shutdown. The MAX9550 is available in a space-saving 5-pin thin SOT23 package, and an 8-pin µMAX® package with an exposed paddle. The MAX9551 is available in an 8-pin µMAX package with an exposed paddle. The MAX9552 is available in a 14-pin TSSOP package. All devices are specified over the -40°C to +85°C temperature range.

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The MAX9945 is a low-power, low-noise, MOS-input operational amplifier with a wide power supply range, low quiescent current, and high output swing.

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The MAX4473 PA power control IC is intended for closed-loop bias control of GSM power amplifiers. The device facilitates accurate control of the current deliv- ered to the power amplifier (PA) through a control volt- age. The error amplifier senses the voltage drop across an external current-sense resistor placed between the supply and the PA. The output of the error amplifier adjusts the PA gain until the current is proportional to the power control voltage applied to the MAX4473. This unique topology is useful in time-division-multiple- access (TDMA) systems, such as GSM, where accurate transmit burst shaping and power control is required. User-selectable current sensing and gain setting resis- tors maximize flexibility. The MAX4473 operates from a single 2.7V to 6.5V sup- ply and typically draws 1.2mA of supply current. The error amplifier has a common-mode range that extends from 1V to VCC. The power control input and error amplifier outputs swing rail-to-rail. A low-power shut- down mode reduces supply current to less than 1µA and activates an on-board active pull-down at the error amplifier output. Fast enable/disable times of 0.9µs reduce average power consumption without compro- mising dynamic performance. The MAX4473 is avail- able in a space-saving 8-pin µMAX® package.

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The MAX9650/MAX9651 are single- and dual-channel VCOM amplifiers with rail-to-rail inputs and outputs. The MAX9650/MAX9651 can drive up to 1300mA of peak current per channel and operate up to 20V. The MAX9650/MAX9651 are designed to source and sink a high current quickly to hold the VCOM voltage stable in large TFT-LCD panels. The MAX9650/MAX9651 feature 40V/µs slew rate and 35MHz bandwidth to quickly settle outputs for 120Hz frame rate and full HD television. The MAX9650/MAX9651 feature output short-circuit protection and thermal shutdown. These devices are available in exposed pad packages for excellent heat dissipation.

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MAX9633 is a Maxim low-noise, low-distortion operational amplifier that is optimized to drive ADCs for use in applications from DC to a few MHz. The MAX9633 features low noise (3 nV/√Hz at 1 kHz and 3.5 nV/√Hz at 100 Hz) and low distortion (130 dB at 10 kHz), making it suitable for industrial, medical, and test applications. Its exceptionally fast settling time and low input offset voltage make it an excellent solution to drive high-resolution 12-bit to 18-bit SAR ADCs. The IC operates from a wide supply voltage range up to 36 V with only 3.5 mA of quiescent current per amplifier. The IC is offered in an 8-pin, 3 mm x 3 mm TDFN package for operation over the -40°C to +125°C temperature range.

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The MAX9622 op amp is a precision, high-bandwidth amplifier with rail-to-rail output and a 50MHz gain bandwidth at a supply current of just 1mA. During power-up, this device automatically calibrates its input offset voltage to less than 100FV. It operates from a single-supply voltage of 2.0V to 5.25V. The MAX9622 is available in a tiny 2mm x 2mm, 5-pin SC70 package and is rated over the -40NC to +125NC automotive temperature range.

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The MAX44251/MAX44252 are 20V, ultra-precision, low-noise, low-drift amplifiers that offer near-zero DC offset and drift through the use of patented autocorrelating zeroing techniques. This method constantly measures and compensates the input offset, eliminating drift over time and temperature and the effect of 1/f noise. These dual and quad devices feature rail-to-rail outputs, oper- ate from a single 2.7V to 20V supply, and consume only 1.15mA per channel, while providing 5.9nV/√Hz input- referred voltage noise. The ICs are unity-gain stable with a gain-bandwidth product of 10MHz. With excellent specifications such as offset voltage of 6µV (max), drift of 19nV/°C (max), and 123nVP-P noise in 0.1Hz to 10Hz, the ICs are ideally suited for applications requiring ultra-low noise and DC precision such as inter- facing with pressure sensors, strain gauges, precision weight scales, and medical instrumentation. The ICs are available in 8-pin SOT23, 8-pin µMAXM, and 14-pin SOIC packages and are rated over the -40°C to +125°C temperature range.

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The MAX44280 offers a unique combination of high speed, precision, low noise, and low-voltage operation making it ideally suited for a large number of signal processing functions such as filtering and amplification of signals in portable and industrial equipment. The amplifier features an input offset of less than 50FV and a high-gain bandwidth product of 50MHz while maintaining a low 1.8V supply rail. The device is internally compensated for gains of 5V/V or greater. The device’s rail-to-rail input/outputs and low noise guarantee maximum dynamic range in demanding applications such as 12- to 16-bit SAR ADC drivers. Unlike traditional rail-to-rail input structures, input crossover distortion is absent due to an optimized input stage with an ultra-quiet charge pump. The MAX44280 includes a fast-power-on shutdown mode for further power savings. The MAX44280 operates from a supply range of 1.8V to 5.5V over the -40NC to +125NC temperature range and can operate down to 1.7V over the 0NC to +70NC temperature range. The MAX44280 is available in a small, 6-pin SC70 package and is also available in a 1mm x 1.5mm thin µDFN (ultra-thin LGA) package.

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This document is the Operator’s Manual and Parts List for the Maxim Chain Drive Tiller. The manual emphasizes the importance of correctly using the machine and the training and maintenance requirements for those who use and maintain it. It also mentions the need for operators to be familiar with the controls and proper use of the equipment, and warns against allowing children to operate the equipment. The document also includes preparation instructions, such as checking the equipment's condition and clearing the operation area.

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The MAX1932 is a low-noise, high-voltage output analog integrated circuit used to bias avalanche photodiodes (APDs) in optical receivers. The chip uses a constant-frequency, pulse-width modulated (PWM) boost topology combined with a unique architecture that maintains regulation with an optional RC or LC post filter inside its feedback loop, achieving very low output ripple and noise. The MAX1932 also integrates a precision reference voltage and error amplifier to maintain 0.5% output voltage accuracy. The MAX1932 protects expensive APDs against adverse operating conditions while providing optimal bias. Traditional boost converters measure switch current for protection, whereas the MAX1932 integrates accurate high-side current limiting to protect APDs under avalanche conditions. A current-limit flag allows easy calibration of the APD operating point by indicating the precise point of avalanche breakdown. The MAX1932 control scheme prevents output overshoot and undershoot to provide safe APD operation without data loss. The output voltage can be accurately set with either external resistors, an internal 8-bit DAC, an external DAC, or other voltage source. Output span and offset are independently settable with external resistors. This optimizes the utilization of DAC resolution for applications that may require limited output voltage range, such as 4.5V to 15V, 4.5V to 45V, 20V to 60V, or 40V to 90V.

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The MAX8863T/S/R and MAX8864T/S/R are low-dropout linear regulators that operate from a +2.5V to +6.5V input range and deliver up to 120mA. These devices feature a PMOS pass transistor, allowing the low, 80µA supply current to remain independent of the load, making them ideal for battery-operated portable equipment such as cellular phones, cordless phones, and modems. The devices offer Dual Mode™ operation, with the output voltage preset at 3.15V for the T versions, 2.84V for the S versions, or 2.80V for the R versions, or adjustable with an external resistor divider. Additional features include low-power shutdown, short-circuit protection, thermal shutdown protection, and reverse battery protection. The MAX8864 also includes an auto-discharge function, which actively discharges the output voltage to ground when the device is placed in shutdown mode. Both devices come in a miniature 5-pin SOT23-5 package.

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The MAX2648 evaluation kit (EV kit) simplifies the evaluation of the MAX2648 5GHz low-noise amplifier. It enables testing of the device’s performance and requires no additional support circuitry. All inputs and outputs use SMA connectors to facilitate easy connection of RF test.

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The MAX4620/MAX4630/MAX4640 are low-voltage, high-ESD-protected, quad, single-pole/single-throw (SPST) analog switches that can replace the industry-standard 74HC4066 analog switch. The switches are protected against ±15kV electrostatic discharge (ESD) without latchup or damage. Each switch can handle Rail-to-Rail® analog signals and is suitable for low-distortion audio applications and current switching in automated test equipment. The switches have low power requirements, small board space, and higher reliability compared to mechanical relays. They operate from a +2V to +12V single supply, making them ideal for battery-powered applications. The switches have a maximum on-resistance of 70Ω, matched between switches to 0.5Ω (typ), and flat (2Ω(typ)) over the specified signal range. The MAX4620 has four normally open (NO) switches, the MAX4630 has four normally closed (NC) switches, and the MAX4640 has two NO and two NC switches.

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The MAX7378 is a dual-speed silicon oscillator that replaces ceramic resonators, crystals, crystal-oscillator modules, and discrete reset circuits. It provides the primary and secondary clock source and reset function for microcontrollers in 3V, 3.3V, and 5V applications. The MAX7378 features a factory-programmed high-speed oscillator, a 32.768kHz oscillator, a clock selector input, and a microprocessor (µP) power-on-reset (POR) supervisor. The clock output can be switched at any time between the high-speed clock and the 32.768kHz clock for low-power operation. Switchover is synchronized internally to provide glitch-free clock switching. Unlike typical crystal and ceramic resonator oscillator circuits, the MAX7378 is resistant to vibration and EMI. The high-output-drive current and absence of high-impedance nodes make the oscillator less susceptible to dirty or humid operating conditions. With a wide operating temperature range as standard, the MAX7378 is a good choice for demanding home appliance, industrial, and automotive environments. The MAX7378 is available in an 8-pin µMAX package. Refer to the MAX7384 data sheet for frequencies ≥10MHz. The MAX7378 standard operating temperature range is -40°C to +125°C. See the Applications Information section for the extended operating temperature range.

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The MAX6870/MAX6871 EEPROM-configurable, multi-voltage supply sequencers/supervisors monitor several voltage detector inputs, two auxiliary inputs, and four general-purpose logic inputs.

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The MAX6340/MAX6421-MAX6426 are low-power micro-processor supervisor circuits that monitor system voltages from 1.6V to 5V. These devices perform a single function: they assert a reset signal whenever the VCC supply voltage falls below its reset threshold. The reset output remains asserted for the reset timeout period after VCC rises above the reset threshold. The reset timeout is externally set by a capacitor to provide more flexibility. The MAX6421/MAX6424 have an active-low, push-pull reset output. The MAX6422 has an active-high, push-pull reset output and the MAX6340/MAX6423/MAX6425/MAX6426 have an active-low, open-drain reset output. The MAX6421/MAX6422/MAX6423 are offered in 4-pin SC70 or SOT143 packages. The MAX6340/MAX6424/MAX6425/MAX6426 are available in 5-pin SOT23-5 packages.

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