MAXIM Manuals

The MAX630 and MAX4193 are CMOS DC-DC regulators designed for simple, efficient, minimum-size DC-DC converter circuits in the 5mW to 5W range. The MAX630 and MAX4193 provide all control and power handling functions in a compact 8-pin package: a 1.31V bandgap reference, an oscillator, a voltage comparator, and a 375mA N-channel output MOSFET. A comparator is also provided for low-battery detection. Operating current is only 70µA and is nearly independent of output switch current or duty cycle. A logic-level input shuts down the regulator to less than 1µA quiescent current. Low-current operation ensures high efficiency even in low-power battery-operated systems. The MAX630 and MAX4193 are compatible with most battery voltages, operating from 2.0V to 16.5V. The devices are pin compatible with the Raytheon bipolar circuits, RC4191/2/3, while providing significantly improved efficiency and low-voltage operation. Maxim also manufactures the MAX631, MAX632, and MAX633 DC-DC converters, which reduce the external component count in fixed-output 5V, 12V, and 15V circuits. See Table 2 at the end of this data sheet for a summary of other Maxim DC-DC converters.

MX7575/MX7576 are high-speed (5µs/10µs), microprocessor (µP) compatible, 8-bit analog-to-digital converters (ADCs). MX7575 provides an on-chip track/hold function that allows accurate acquisition and digitization of full-scale signals up to 50kHz (386mV/µs slew rate). Both ADCs use a successive-approximation technique to achieve fast conversions and low power dissipation. MX7575/MX7576 operate with a +5V supply and a 1.23V external reference. They accept input voltages ranging from 0V to 2VREF. MX7575/MX7576 are easily interfaced to all popular 8-bit µPs through standard CS and RD control signals. These signals control conversion start and data access. A BUSY signal indicates the beginning and end of a conversion. Since all the data outputs are latched and three-state buffered, MX7575/MX7576 can be directly connected to a µP data bus or system I/O port. Maxim also makes MAX165, a plug-in replacement for MX7575 with an internal 1.23V reference. For applications that require a differential analog input and an internal reference, MAX166 is recommended.

This document describes the features and characteristics of a high-speed microcontroller, including 80C52 compatibility, 8051 pin and instruction set compatibility, four 8-bit I/O ports, three 16-bit timer/counters, 256 bytes of scratchpad RAM, etc.

This document is the package information of MX7541A, including package size, pin position and other information.

The DS8024 is a low-cost, analog front-end for a smart card reader, designed for all ISO 7816, EMV®, and GSM11-11 applications.

This file introduces the features of DS8024-RJX+ and DS8024-RRX+, including temperature range, pin package, functional pins, etc.

This document provides detailed information on the DS4560+ thermal shutdown product, including model, package, pin arrangement, functional characteristics, etc.

The MAX3535E/MXL1535E is a MAXIM isolated RS-485/RS-422 transceiver. This device uses high-voltage capacitors for isolation and supports 1000kbps communication speed. It also has short-circuit protection and overvoltage protection.

The MAX3535E/MXL1535E is an RS-485/RS-422 transceiver with 2500VRMS ESD protection, supporting 1000kbps RS-485/RS-422 communication, and operating voltage range of +3V to +5.5V.

The MAX748A/MAX763A is a 3.3V output CMOS step-down switching regulator. The MAX748A accepts inputs from 3.3V to 16V and delivers up to 500mA. The MAX763A accepts inputs between 3.3V and 11V and delivers up to 500mA. Typical efficiencies are 85% to 90%. Quiescent supply current is 1.4mA (MAX763A), and only 0.2µA in shutdown. Pulse-width-modulation (PWM) current-mode control provides precise output regulation and excellent transient responses. Output voltage accuracy is guaranteed to be ±5% over line, load, and temperature variations. Fixed-frequency switching allows easy filtering of output ripple and noise, as well as the use of small external components. A 22µH inductor works in most applications, so no magnetics design is necessary. The MAX748A/MAX763A also feature cycle-by-cycle cur- rent limiting, overcurrent limiting, undervoltage lockout, and programmable soft-start protection. The MAX748A is available in 8-pin DIP and 16-pin wide SO packages; the MAX763A comes in 8-pin DIP and SO packages.

MAX780 Dual-Slot PCMCIA Analog Power Controller is a product launched by Maxim Integrated Products. It provides the power switching and status signals necessary to control two Personal Computer Memory Card International Association (PCMCIA) Release 2.0 card slots.

This datasheet provides the features of the DS1631, DS1631A, and DS1731 digital thermometers, including accuracy, temperature range, power consumption, and interface.

MAX756/MAX757 3.3V/5V/Adjustable-Output, Step-Up DC-DC Converters

The DS26303 is an 8-channel short-haul line interface unit (LIU) that supports E1/T1/J1 from a single 3.3V power supply. A wide variety of applications are supported through internal termination or external termination. A single bill of material can support E1/T1/J1 with minimum external components. Redundancy is supported through nonintrusive monitoring, optimal high-impedance modes, and configurable 1:1 or 1+1 backup enhancements. An on-chip synthesizer generates the E1/T1/J1 clock rates by a single master clock input of various frequencies. Two clock output references are also offered.

The DS1847 is a temperature-controlled nonvolatile (NV) variable resistor produced by Texas Instruments. It consists of two 256-position linear variable resistors. The device can access temperature data and device control via a 2-wire serial bus, and it operates from 3V or 5V supplies. The operating temperature range is -40°C to +95°C, and the packaging types are 14-pin TSSOP and 16-ball CSBGA.