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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 f_CLK = 1MHz to 160MHz ; 8-Bit Gain and Offset DACs ; 2ns Output Switching Time ; Serial Port Control ; Laser Enable ; Random-Noise Generator and Periodic Off  .

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 .

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.