MAXIM Manuals

REF01/REF02 are industry-standard precision volt- age references.

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The MAX200–MAX209/MAX211/MAX213 transceivers are designed for RS-232 and V.28 communication interfaces where Q12V supplies are not available. On-board charge pumps convert the +5V input to the Q10V needed for RS-232 output levels. The MAX201 and MAX209 operate from +5V and +12V, respectively, and contain a +12V to -12V charge-pump voltage converter. The MAX200–MAX209/MAX211/MAX213 drivers and receivers meet all EIA/TIA-232E and CCITT V.28 specifications at a 20kbps data rate. The drivers maintain the Q5V EIA/TIA-232E output signal levels at data rates in excess of 120kbps when loaded in accordance with the EIA/TIA-232E specification. The 5FW shutdown mode of the MAX200, MAX205, MAX206, and MAX211 conserves energy in battery-powered systems. The MAX213 has an active-low shutdown and an active-high receiver enable control. Two receivers of the MAX213 are active, allowing the ring indicator (RI) to be monitored easily using only 75FW power. The MAX211 and MAX213 are available in a 28-pin, wide small-outline (SO) package and a 28-pin shrink small-outline (SSOP) package, which occupies only 40% of the area.

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The DS1087L is a clock generator from Maxim company. It can produce a square wave output of frequencies from 130kHz to 66.6MHz. The clock generator uses 2% or 4% of dither output and can be programmed through a 2-wire serial interface. There is an internal frequency divider and it can be programmed. The clock generator can operate in power-down and output-enable mode, which is perfect for power-sensitive applications.

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The DS4026 is a temperature-compensated crystal oscillator (TCXO) that provides ±1ppm frequency stability over the -40°C to +85°C industrial temperature range. The DS4026 is also available in Stratum 3 versions. Each device is factory calibrated over temperature to achieve the ±1ppm frequency stability. Standard frequencies for the device include 10, 12.8, 19.44, 20, 38.88, 40, and 51.84MHz. Contact the factory for custom frequencies. The DS4026 provides excellent phase-noise characteristics. The output is a push-pull CMOS square wave with symmetrical rise and fall times. In addition, the DS4026 is designed to provide a maximum frequency deviation of less than ±4.6ppm over 20 years. The device also provides an I2C interface to allow pushing and pulling of the output frequency by a minimum of ±8ppm (±5ppm for 10MHz) with typical 1ppb resolution. The DS4026 implements a temperature-to-voltage conversion with a nonlinear relationship. The output from the temperature-to-voltage converter is used to drive the voltage-controlled crystal oscillator to compensate for frequency change. The device implements an on-chip temperature sensor lookup table, and a digital-to-analog converter (DAC) to adjust the frequency. An I2C interface used to communicate with the DS4026 performs temperature readings and frequency push-pull.

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The LM4050/LM4051 are precision two-terminal, shunt-mode, bandgap voltage references available in fixed reverse breakdown voltages of 1.225V, 2.048V, 2.500V, 3.000V, 3.3V, 4.096V, and 5.000V. Ideal for space-critical applications, the LM4050/LM4051 are offered in the subminiature 3-pin SC70 surface-mount packages (1.8mm x 1.8mm), 50% smaller than comparable devices in SOT23 surface-mount package (SOT23 versions are also available). Laser-trimmed resistors ensure excellent initial accuracy. With a 50ppm/°C temperature coefficient, these devices are offered in three grades of initial accu- racy ranging from 0.1% to 0.5%. The LM4050/LM4051 have a 60µA to 15mA shunt-current capability with low dynamic impedance, ensuring stable reverse break- down voltage accuracy over a wide range of operating temperatures and currents. The LM4050/LM4051 do not require an external stabilizing capacitor while ensuring stability with any capacitive loads. The LM4050/LM4051 specifications are guaranteed over the temperature range of -40°C to +125°C.

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This document describes the features and characteristics of Crimzon® ZLR16300 Z8® low-voltage ROM MCUs with Infrared Timers, manufactured by Maxim Integrated Products Inc.

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The DS1836 MicroManager is a power management chip launched by Microchip. It can provide 5V or 3.3V power-on reset and switch to battery power at 3.8V (2.6V for 3.3V versions). It can also force reset during power transients and maintain reset for 350ms after VCC returns to an in-tolerance condition. The DS1836 uses a precision temperature-compensated voltage reference and voltage sensor, with 8-pin DIP and 8-pin SO surface mount packages. It is perfect for PIC microprocessor applications.

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The MAX202E-MAX213E/MAX232E/MAX241E line drivers/receivers are designed for RS-232 and V.28 communications

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The MAX793/MAX794/MAX795 microprocessor (µP) supervisory circuits monitor and control the activities of +3.0V/+3.3V µPs by providing backup-battery switchover, among other features such as low-line indication, µP reset, write protection for CMOS RAM, and a watchdog. The backup-battery voltage can exceed VCC, permitting the use of 3.6V lithium batteries in systems using 3.0V to 3.3V for VCC. The MAX793/MAX795 offer a choice of reset threshold voltage range. The MAX794’s reset threshold is set externally with a resistor divider.

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The DS89C430 and DS89C450 are the highest performance available in 8051-compatible microcontrollers. They feature newly designed processor cores that execute instructions up to 12 times faster than the original 8051 at the same crystal speed. Typical applications will experience a speed improvement up to 10x.

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This datasheet provides details of Maxim DG508A/DG509A, including applications, features, etc.

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MAX690A/MAX692A/MAX802L/MAX802M/MAX805L Supervisory Circuits, reduce the complexity and number of components required for power-supply monitoring and battery-control functions in microprocessor (µP) systems

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The MAX4200–MAX4205 are ultra-high-speed, open-loop buffers featuring high slew rate, high output current, low noise, and excellent capacitive-load-driving capability. They use a proprietary architecture to achieve up to 780MHz -3dB bandwidth, 280MHz 0.1dB gain flatness, 4200V/µs slew rate, and ±90mA output current drive capability. They are suitable for driving high-speed analog-to-digital converter (ADC) inputs or for data-communications applications.

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MAX1044/ICL7660 is a monolithic CMOS switched-capacitor voltage converter that inverts, doubles, divides, or multiplies a positive input voltage. It is pin compatible with the industry-standard ICL7660 and LTC1044. Operation is guaranteed from 1.5V to 10V with no external diode over the full temperature range. It delivers 10mA with a 0.5V output drop. The MAX1044 has a BOOST pin that raises the oscillator frequency above the audio band and reduces external capacitor size requirements. The MAX1044/ICL7660 combine low quiescent current and high efficiency. Oscillator control circuitry and four power MOSFET switches are included on-chip. Applications include generating a -5V supply from a +5V logic supply to power analog circuitry. For applications requiring more power, the MAX660 delivers up to 100mA with a voltage drop of less than 0.65V.

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The DS4125–DS4776 DS4-XO series crystal oscillators are from Maxim company, offer frequencies at 125MHz, 155.52MHz, 156.25MHz, 160MHz, 311.04MHz, 312.5MHz, 622.08MHz and 77.76MHz, and have very low jitter and phase noise. They are suitable for systems with tight tolerances. The package size is 5.0mm x 3.2mm x 1.49mm and the package type is 10-pin LCCC surface mount ceramic.

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The DS80C320/DS80C323 series are high-performance, low-power 8051-compatible microcontrollers that are available in 40-Pin DIP, 44-Pin PLCC, and 44-Pin TQFP packages.

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The MAX705-MAX708/MAX813L are microprocessor (µP) supervisory circuits that reduce the complexity and number of components required to monitor power-supply and battery functions in µP systems. These devices significantly improve system reliability and accuracy com- pared to separate ICs or discrete components. The MAX705/MAX706/MAX813L provide four functions: 1) A reset output during power-up, power-down, and brownout conditions. 2) An independent watchdog output that goes low if the watchdog input has not been toggled within 1.6 seconds. 3) A 1.25V threshold detector for power-fail warning, low-battery detection, or for monitoring a power sup- ply other than +5V. 4) An active-low manual-reset input. The MAX707/MAX708 are the same as the MAX705/ MAX706, except an active-high reset is substituted for the watchdog timer. Th

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TINI® Power SoCs analog integration technology provides space for new functions in mobile platforms. It combines power and system functions into a single chip to save board space, reduce the bill of materials, and improve performance. It also integrates a microcontroller and memory to offload the applications processor and allow one design to be ported across multiple platforms. Additionally, it extends battery life and reduces heat with highly efficient power-management functions. The technology leverages a broad portfolio of high-performance building blocks, including advanced IP cores like ModelGauge™, FlexSound®, and TacTouch®.

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The DS4077 is an integrated voltage-controlled crystal oscillator (VCXO) module designed to provide reference clock generation in base stations, telecom/datacom, and wireless applications. It features low jitter and low phase noise.

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