Maxim manuals, page 103
MAXIM INTEGRATED PRODUCTS DS2781 Manual
This datasheet introduces the features and characteristics of the DS2781 battery monitoring chip, including voltage, temperature, current measurement, and battery remaining capacity estimation.
MAXIM MAX618 Manual
The MAX618 CMOS, PWM, step-up DC-DC converter generates output voltages up to 28V and accepts inputs from +3V to +28V. An internal 2A, 0.3Ω switch eliminates the need for external power MOSFETs while supplying output currents up to 500mA or more. A PWM control scheme combined with Idle Mode™ operation at light loads minimizes noise and ripple while maximizing efficiency over a wide load range. No-load operating current is 500µA, which allows efficiency up to 93%. A fast 250kHz switching frequency allows the use of small surface-mount inductors and capacitors. A shutdown mode extends battery life when the device is not in use. Adaptive slope compensation allows the MAX618 to accommodate a wide range of input and output voltages with a simple, single compensation capacitor. The MAX618 is available in a thermally enhanced 16-pin QSOP package that is the same size as an industry-standard 8-pin SO but dissipates up to 1W. An evaluation kit (MAX618EVKIT) is available to help speed designs.
MAXIM MAX9718/MAX9719 handbook
The MAX9718/MAX9719 are differential input audio power amplifiers that are ideal for portable audio devices with internal speakers. The differential input structure improves noise rejection and provides common-mode rejection. A bridge-tied load (BTL) architecture minimizes external component count, while providing high-quality, power audio amplification. Both devices deliver 1.4W continuous average power per channel to a 4Ω load with less than 1% THD+N while operating from a single +5V supply.
MAXIM MAX9718/MAX9719 Data Sheet
The MAX9718/MAX9719 is a audio power amplifier that is ideal for portable audio devices with internal speakers. The device features a bridge-tied load (BTL) architecture that provides high-quality, power audio amplification while minimizing external component count.
MAXIM MAX4800A/MAX4802A Manual
The MAX4800A/MAX4802A provide high-voltage switching on eight channels for ultrasonic imaging and printer applications. The devices utilize BCDMOS process technology to provide eight high-voltage low-charge-injection SPST switches, controlled by a 20MHz serial interface. The digital interface operates from a separate VDD supply from +2.7V to +6V. Features include flexible high-voltage supplies up to VPP - VNN = 200V, low-charge-injection, low-capacitance 22Ω switches, and DC to 10MHz analog-signal frequency. The MAX4800A/MAX4802A are drop-in replacements for the Supertex HV2203 and HV2303.
MAXIM DS28EA00 Manual
The DS28EA00 is a digital thermometer with 9-bit (0.5°C) to 12-bit (1/16°C) resolution and alarm function with nonvolatile (NV), user-programmable upper and lower trigger points. Each DS28EA00 has its unique 64-bit registration number that is factory-programmed into the chip. Data is transferred serially through the 1-Wire protocol, which requires only one data line and a ground for communication. The improved 1-Wire front end with hysteresis and glitch filter enables the DS28EA00 to perform reliably in large 1-Wire networks. Unlike other 1-Wire thermometers, the DS28EA00 has two additional pins to implement a sequence detect function. This feature allows the user to discover the registration numbers according to the physical device location in a chain, e.g., to measure the temperature in a storage tower at different height. If the sequence detect function is not needed, these pins can be used as general-purpose input or output. The DS28EA00 can derive the power for its operation directly from the data line (“parasite power”), eliminating the need for an external power supply.
MAXIM MAX9812/MAX9813 handbook
The MAX9812/MAX9813 are single/dual-input, 20dB fixed-gain microphone amplifiers. They offer tiny pack- aging and a low-noise, integrated microphone bias, making them ideal for portable audio applications such as notebook computers, cell phones, and PDAs.
MAXIM DS1803 handbook
The DS1803 addressable dual digital potentiometer features two independently controlled 256-position potentiometers. Device control is achieved through a 2-wire serial interface. Three address pins allow up to 8 DS1803's to share the same 2-wire interface. The exact wiper position of each potentiometer can be written or read. The DS1803 is available in a 16-pin DIP, 16-pin SO, and 14-pin TSSOP package. The device is available in three standard resistance values: 10kΩ, 50kΩ, and 100kΩ and is specified over the industrial temperature range.
MAXIM INTEGRATED PRODUCTS MAX5033 MAXPower Step-Down DC-DC Converter handbook
The MAX5033 is an easy-to-use, high-efficiency, high-voltage, step-down DC-DC converter that operates from an input voltage up to 76V and consumes only 270µA quiescent current at no load. It operates as a pulse-width modulated (PWM) converter at a fixed 125kHz switching frequency under heavy loads, and automatically switches to pulse-skipping mode to provide low quiescent current and high efficiency under light loads. The MAX5033 includes internal frequency compensation to simplify circuit implementation. It utilizes an internal low-on-resistance, high-voltage, DMOS transistor to achieve high efficiency and reduce overall system cost. The device incorporates undervoltage lockout, cycle-by-cycle current limit, hiccup-mode output short-circuit protection, and thermal shutdown. The MAX5033 can deliver up to 500mA output current, which may be limited by the package's maximum power dissipation capability. It features external shutdown with a 10µA (typical) shutdown current. The MAX5033A/B/C versions have fixed output voltages of 3.3V, 5V, and 12V, respectively, while the MAX5033D features an adjustable output voltage ranging from 1.25V to 13.2V. The MAX5033 is available in space-saving 8-pin SO and 8-pin plastic DIP packages and operates over the automotive (-40°C to +125°C) temperature range.
MAXIM MAX253 Manual
The MAX253 is a monolithic oscillator/power-driver, specifically designed to provide isolated power for an isolated RS-485 or RS-232 data interface. It drives a center-tapped transformer primary from a 5V or 3.3V DC power supply. The secondary can be wound to provide any isolated voltage needed at power levels up to 1W. The MAX253 consists of a CMOS oscillator driving a pair of N-channel power switches. The oscillator runs at double the output frequency, driving a toggle flip-flop to ensure 50% duty cycle to each of the switches. Internal delays are arranged to ensure break-before-make action between the two switches. The SD pin puts the entire device into a low-power shutdown state, disabling both the power switches and oscillator.
MAXIM MAX5477/MAX5478/MAX5479 handbook
The MAX5477/MAX5478/MAX5479 are nonvolatile, dual, linear-taper, digital potentiometers that perform the function of a mechanical potentiometer, but replace the mechanics with a simple 2-wire digital interface. Each device performs the same function as a discrete potenti- tiometer or variable resistor and has 256 tap points. The devices feature an internal, nonvolatile EEPROM used to store the wiper position for initialization during power-up. A write-protect feature prevents accidental overwrites of the EEPROM. The fast-mode I2C-compati- ble serial interface allows communication at data rates up to 400kbps, minimizing board space and reducing interconnection complexity in many applications. Three address inputs allow a total of eight unique address combinations. The MAX5477/MAX5478/MAX5479 provide three nomi- nal resistance values: 10kΩ (MAX5477), 50kΩ (MAX5478), or 100kΩ (MAX5479). The nominal resistor temperature coefficient is 70ppm/°C end-to-end and 10ppm/°C ratiometric. The low temperature coefficient makes the devices ideal for applications requiring a low- temperature-coefficient variable resistor, such as low- drift, programmable gain-amplifier circuit configurations. The MAX5477/MAX5478/MAX5479 are available in 16- pin 3mm x 3mm x 0.8mm thin QFN and 14-pin 4.4mm x 5mm TSSOP packages. These devices operate over the extended -40°C to +85°C temperature range. Applications include Mechanical Potentiometer Replacement Low-Drift Programmable-Gain Amplifiers Volume Contro
MAXIM MAX4230 MAX4234 datasheet
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 the 6-pin SC70 package and a 1.5mm x 1.0mm x 0.5mm ultra-thin µDFN package. The dual op-amp MAX4233 is offered in the space-saving 10-bump chip-scale pack- age (UCSP™), providing the smallest footprint area for a dual op amp with shutdown. These op amps are designed to be part of the PA con- trol 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 dis- abled 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). Applications RF PA Biasing Controls in Handset Applications Portable/Battery-Powered Audio Applications Portable Headphone Speaker Drivers (32Ω) Audio Hands-Free Car Phones (Kits) Laptop/Notebook Computers/TFT Panels Sound P
MAXIM MAX16801A/B/MAX16802A/B handbook
This document introduces the MAX16801A/B/MAX16802A/B high-brightness (HB) LED driver-control ICs, including power management, error amplifier, low-frequency PWM dimming circuit
MAXIM DS1220Y 16k Nonvolatile SRAM handbook
The 16k Nonvolatile SRAM features 10-years minimum data retention in the absence of external power and automatically protects data during power loss. It directly replaces 2k x 8 volatile static RAM or EEPROM and has unlimited write cycles.
MAXIM IDS1844 Quad Digital Potentiometer handbook
This document introduces the features and characteristics of the DS1844 quad digital potentiometer, including four independent, digitally controlled 64-position potentiometers, two interface control options, standard resistance values, mixed resistor value combinations, and operating temperature range.