MAXIM Manuals

The MAX456 is the first monolithic CMOS 8 x 8 video crosspoint switch that significantly reduces component count, board space, and cost. The crosspoint switch contains a digitally controlled matrix of 64 T-switches that connect eight video input signals to any, or all, output channels. Each matrix output connects to eight internal, high-speed (250V/µs), unity-gain-stable buffers capable of driving 400Ω and 20pF to ±1.3V. For applications requiring increased drive capability, the MAX456 outputs can be connected directly to two MAX470 quad, gain-of-two video buffers, which are capable of driving 75Ω loads. Three-state output capability and internal, programmable active loads make it feasible to parallel multiple MAX456s and form larger switch matrices. In the 40-pin DIP package, crosstalk (70dB at 5MHz) is minimized, and board area and complexity are simplified by using a straight-through pinout. The analog inputs and outputs are on opposite sides, and each channel is separated by a power-supply line or quiet digital logic line.

File format: PDF Size:93 KB

The MAX4539/MAX4540 are low-voltage CMOS 8-channel (MAX4539) and dual 4-channel (MAX4540) multiplexers ideal for precision ADC calibration and system self-monitoring applications. These calibration multiplexers (cal-muxes) have precision resistor-dividers to generate accurate voltage ratios from an input reference voltage. The reference ratios include 15/4096 and 4081/4096 of the external reference voltage, accurate to 15 bits, and 1/2V+ and 5/8(V+ - V-), accurate to 8 bits. The external reference voltage as well as ground can also be switched to the output.

File format: PDF Size:244 KB

The data sheet describes the features of the MAX6361/MAX6363/MAX6364 power supply monitoring and battery control chips from maxim-ic

File format: PDF Size:101 KB

MAX4359/MAX4360/MAX4456 low-cost video cross-point switches are designed to reduce component count, board space, design time, and system cost. Each con- tains a matrix of T-switches that connect any of their four (MAX4359) or eight (MAX4360/MAX4456) video inputs to any of their buffered outputs, in any combination. Each matrix output is buffered by an internal, high-speed (250V/µs), unity-gain amplifier that is capable of driving 400Ω and 20pF at 2.6Vp-p. For applications requiring increased drive capability, buffer the MAX4359/ MAX4360/MAX4456 outputs with the MAX497 quad, gain-of-two video line driver. The MAX4456 has a digitally controlled 8x8 switch matrix and is a low-cost pin-for-pin compatible alternative to the popular MAX456. The MAX4359/MAX4360 are similar to the MAX4456, with the 8x8 switch matrix replaced by a 4x4 (MAX4359) or an 8x4 (MAX4360) switch matrix. Three-state output capability and internal, programmable active loads make it feasible to parallel multiple devices to form larger switch arrays. The inputs and outputs are on opposite sides, and a quiet power supply or digital input line separates each channel, which reduces crosstalk to -70dB at 5MHz. For applications demanding better DC specifications, see the MAX456 8x8 video crosspoint switch.

File format: PDF Size:248 KB

MAX4249-MAX4257 are low-noise, low-distortion op-amps that offer Rail-to-Rail® outputs and single-supply operation down to 2.4V. They draw 400µA of quiescent supply current per amplifier while featuring ultra-low distortion (0.0002% THD), as well as low input voltage-noise density (7.9nV/√Hz) and low input current-noise density (0.5fA/√Hz). These features make the devices an ideal choice for portable/battery-powered applications that require low distortion and/or low noise. For additional power conservation, the MAX4249/MAX4251/MAX4253/MAX4256 offer a low-power shut-down mode that reduces supply current to 0.5µA and puts the amplifiers’ outputs into a high-impedance state. The MAX4249-MAX4257’s outputs swing rail-to-rail and their input common-mode voltage range includes ground. The MAX4250–MAX4254 are unity- gain stable with a gain-bandwidth product of 3MHz. The MAX4249/MAX4255/MAX4256/MAX4257 are inter- nally compensated for gains of 10V/V or greater with a gain-bandwidth product of 22MHz. The single MAX4250/MAX4255 are available in space-saving 5-pin SOT23 packages. The MAX4252 is available in an 8-bump chip-scale package (UCSP™) and the MAX4253 is available in a 10-bump UCSP.

File format: PDF Size:1110 KB

The MAX3748/MAX3748A multirate limiting amplifier functions as a data quantizer for SONET, Fibre Channel, and Gigabit Ethernet optical receivers. The amplifier accepts a wide range of input voltages and provides constant-level current-mode logic (CML) output voltages with controlled edge speeds. A received-signal-strength indicator (RSSI) is available when the MAX3748/MAX3748A is combined with the MAX3744 SFP transimpedance amplifier (TIA).

File format: PDF Size:422 KB

MAX3080–MAX3089 is a series of high-speed transceivers for RS-485/RS-422 communication, featuring fail-safe circuitry that guarantees a logic-high receiver output when the receiver inputs are open or shorted.

File format: PDF Size:271 KB

The MAX2360 is a dual-band, triple-mode cellular phone transmitter that is the most integrated and architecturally advanced solution to date.

File format: PDF Size:404 KB

The MAX1921 evaluation kit provides a fixed 1.8V output voltage from a 2V to 5.5V input source and delivers up to 400mA output current. It is a step-down switching regulator with an internal power switch and synchronous rectifier in a tiny SOT23 package. The MAX1921 EV kit is a fully assembled and tested surface-mount circuit board. It can also be used to evaluate other fixed-output voltage versions of the MAX1921 or the MAX1920, which is a step-down switching regulator with an adjustable output voltage.

File format: PDF Size:92 KB

The MAX1707 is a high efficiency, low EMI and low input ripple LED controller that supports a maximum regulated constant current of 610mA for main display backlight, subdisplay backlight (or RGB indicator) and white LED camera flash.

File format: PDF Size:790 KB

File format: PDF Size:636 KB

File format: PDF Size:296 KB

The DS1330 256k NV SRAMs are 262,144-bit, fully static, NV SRAMs organized as 32,768 words by 8 bits. Each NV SRAM has a self-contained lithium energy source and control circuitry which constantly monitors VCC for an out-of-tolerance condition. When such a condition occurs, the control circuitry resets the processor and holds it in reset until VCC returns to normal operating range.

File format: PDF Size:225 KB

The MAX705-MAX708/MAX813L microprocessor (µP) supervisory circuits reduce the complexity and number of components required to monitor power-supply and battery functions in µP systems. These devices signifi- cantly 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, but differ in pin arrangement.

File format: PDF Size:95 KB

File format: PDF Size:427 KB

File format: PDF Size:628 KB

The MAX6701-MAX6708 microprocessor (µP) supervisory circuits reduce the complexity and components required to monitor power-supply functions in µP systems. These devices significantly improve system reliability and accu- racy compared to separate ICs or discrete components. The MAX6701-MAX6708 family provides four functions: a reset output during power-up, power-down, and brownout conditions; an independent watchdog output that goes low if the watchdog input has not been toggled within 1.6s; a 0.62V threshold detector for power-fail warning; and an active-low manual reset input. The MAX6701-MAX6708 family offers several pinout options to accommodate a variety of multivoltage micro- processor supervision applications. The MAX6701(A)/MAX6702(A)/MAX6703(A) monitor three supply voltages (one fixed threshold and two adjustable) to drive a single reset output and include a manual reset input and a watchdog timer with an inde- pendent output. The MAX6704 monitors a single-supply voltage to drive complementary reset outputs and includes an independent adjustable power-fail-in/power- fail-out comparator, a manual reset input, and a reset- based watchdog timer. The MAX6705(A)/MAX6706(A)/ MAX6707(A) monitor a single-supply voltage to drive a single reset output and include an independent adjustable power-fail-in/power-fail-out comparator, a manual reset input, and a watchdog timer with an inde- pendent output. The MAX6708 is the same as the MAX6704 but without the wa

File format: PDF Size:201 KB

The MAX6461-MAX6466 family is a series of ultra-low-power voltage detectors and µP reset supervisory circuits that monitor battery, power-supply, and system voltages. Each circuit includes a precision bandgap reference, a comparator, internally trimmed resistor networks that set specified trip thresholds, and an internal 5% threshold hysteresis circuit. Output is asserted when VCC falls below the internal VTH- and remains asserted until VCC rises above VTH+ (VTH+ = VTH- × 1.05). These devices provide excellent circuit reliability and low cost by eliminating external components and adjustments when monitoring nominal system voltages from +1.6V to +5.5V. The MAX6461/MAX6462/MAX6463 are voltage detectors with a propagation delay of 17µs. The MAX6464/MAX6465/MAX6466 are µP supervisory circuits with a minimum reset timeout period of 150ms. All devices are available with thresholds from +1.6V to +5.5V in 100mV increments. The family is available with three output stage options: push-pull with active-low output, push-pull with active-high output, and open drain with active-low output. These devices are available in SC70 and SOT23 packages specified over the -40°C to +125°C temperature range.

File format: PDF Size:149 KB

The DS1339 is a low-power clock/date device with two programmable time-of-day alarms and a programmable square-wave output.

File format: PDF Size:278 KB

The MAX5878 is an advanced 16-bit, 250Msps, dual digital-to-analog converter (DAC). This DAC meets the demanding performance requirements of signal synthesis applications found in wireless base stations and other communications applications. Operating from +3.3V and +1.8V supplies, this dual DAC offers exceptional dynamic performance such as 76dBc spurious-free dynamic range (SFDR) at fOUT = 16MHz and supports update rates of 250Msps, with a power dissipation of only 296mW. The MAX5878 utilizes a current-steering architecture that supports a 2mA to 20mA full-scale output current range, and allows a 0.1VP-P to 1VP-P differential output voltage swing. The device features an integrated +1.2V bandgap reference and control amplifier to ensure high-accuracy and low-noise performance. A separate reference input (REFIO) allows for the use of an external reference source for optimum flexibility and improved gain accuracy. The clock inputs of the MAX5878 accept both LVDS and LVPECL-compatible voltage levels. The device features an interleaved data input that allows a single LVDS bus to support both DACs. The MAX5878 is available in a 68-pin QFN package with an exposed paddle (EP) and is specified for the extended temperature range (-40°C to +85°C). Refer to the MAX5876* and MAX5877* data sheets for pin-compatible 12-bit and 14-bit versions of the MAX5878, respectively. Refer to the MAX5875 data sheet for a CMOS-compatible version of the MAX5878.

File format: PDF Size:508 KB