Year: 2006

I have experimented with MAX1241s and MAX144s in the past, hoping to find an external analog to digital converter (ADC) that will allow for multi-channel high-speed data acquisition. The MAX114 is an 8-bit four-channel ADC that allows for up to 1Msps (1,000,000 samples per second) with a parallel 8-bit microcontroller interface. This project investigated the viability of developing a high-speed multi-channel oscilloscope using the MAX114 and the PIC18F2550. Read More

As discussed in my MAX1241 project, there are a number of advantages for utilizing external analog to digital converters (ADCs) in a project’s design. The MAX144 is a 12-bit two-channel ADC that has a “7.4µs successive-approximation ADC, automatic power-down, fast wake-up (2.5µs), an on-chip clock, and a high-speed, 3-wire serial interface.” All of these contribute to a wonderful, fast, two-channel analog-to-digital converter, which can be utilized in a number of situations where high-speed (108ksps) data acquisition is necessary. Read More

There are a number of advantages for utilizing an external analog to digital converter (ADC) in a project’s design. The internal ADC of the PIC18F series is limited to 10-bit resolution, while much higher resolution ADCs are available. In addition, high-speed multi-channel conversion is possible utilizing multiple external ADCs and multi-channel ADCs. The MAX1241 is a 12-bit single-channel ADC that has a “7.5µs successive-approximation ADC, a fast track/hold (1.5µs), an on-chip clock, and a high-speed, 3-wire serial interface.” All of these contribute to a great compact analog-to-digital converter, which can be utilized in a number of situations where high-speed sampling (73ksps) is required. Read More