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Blog blog, news from technology , fresh release technologies and components , interesting devices and many useful electronic circuits and schematics diagrams .

MAX3600 laser driver

Maxim Semiconductor introduces the MAX3600 laser driver for projectors supports video imagining with red, green and blue lasers . MAX3600 has four output channel which includes on each output channel  a 10-bit video digital-to-analog converter (DAC) with programmable gain and offset.

The MAX3600B/R/G are monochrome drivers for blue, red, and green lasers. The MAX3600A guarantees higher full-scale output currents than the MAX3600.

Main features of this laser driver are : Integrates Four Current-Output Laser Drivers  ; Compatible with Red, Blue, and Green Lasers ; 10-Bit Video DACs fCLK = 1MHz to 160MHz ; 8-Bit Gain and Offset DACs ; 2ns Output Switching Time ; Serial Port Control ; Laser Enable ; Random-Noise Generator and Periodic Off  .

MAX3600 laser driver

MAX7360 key driver

Maxim introduces the MAX7360 I2C-interfaced key switch controller which can be used to provide control for up to 64 keys .

MAX7360 key-switch driver can be interfaced with metallic or resistive switches with on-resistances up to 5k. Key inputs are monitored statically to ensure low-EMI operation.

The MAX7360 has an autosleep and autowake modes to minimize the power consumption of the device. The autosleep mode puts the device in a low-power state after a sleep timeout period and the autowake mode of MAX7360 return to normal operating mode from sleep upon a keypress.

Main features of the MAX7360 are :integrated ESD Protection , Q8kV IEC 61000-4-2 Contact Discharge ,

Q15kV IEC 61000-4-2 Air-Gap Discharge , +14V Tolerant Open-Drain I/O Ports Capable of Constant-Current LED Drive , Rotary Switch-Capable Input Pair (PORT6, PORT7) , 256-Step PWM Individual LED Intensity Control , Individual LED Blink Rates and Common LED ,Fade In/Out Rates from 256ms to 4096ms , FIFO Queues Up to 16 Debounced Key Events , User-Configurable Key Debounce (9ms to 40ms) , Keyscan Uses Static Matrix Monitoring for Low EMI Operation , +1.62V to +3.6V Operation , Monitors Up to 64 Keys , Key-Switch Interrupt (INTK) on Each Debounced ,Event/FIFO Level, or End of Definable Time Period , Port Interrupt (INTI) for Input Ports for Special-Key Functions , 400kbps +5.5V Tolerant 2-Wire Serial Interface .

MAX7360 switch key driver

MCP3901 dual channel ADC

Microchip introduces the MCP3901 dual channel analog to digital converters which contains two PGAs, phase delay compensation block, internal voltage reference, modulator output block, and high-speed 20 MHz SPI compatible serial interface

The internal register map of the MCP3901 contains 24-bit wide ADC data words, a modulator output byte as well as six writable control registers to program gain, over-sampling ratio, phase, resolution, dithering, shutdown, reset and several communication features.

The MCP3901 can be used with a large variety of voltage and current sensors including shunts, current transformers, Hall effect sensors.

The Microchip’s MCP3901 main features are :two synchronous sampling 16/24-bit resolution Delta-Sigma A/D Converters with proprietary multi-bit architecture , 109 dB SFDR for each channel , programmable data rate up to 64 ksps , ultra low power shutdown mode with <2 μA ,  -133 dB Crosstalk between the two channels , low drift Internal Voltage Reference: 12 ppm/°C , differential voltage reference input pins ,high gain PGA on each channel (up to 32 V/V) , pase delay compensation between the two channels with 1 μs time resolution , separate modulator outputs for each channel , high-speed addressable 20 MHz SPI interface , independent analog and digital power supplies

4.5V-5.5V AVDD, 2.7V-5.5V DVDD , low power consumption (14 mW typical at 5V) .

As you can see in the schematic circuit the MCP3901 require few external components and is easy to design.

MCP3901 dual channel ADC


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