respondo con las caracteristicas del micro
# 2 x OPAMP - General Purpose Opamps
# 2 X TRIAMP - Transimpedance Amplifiers
# 16-bit SAR ADC - High resolution ADC
# PRACMP - Analog Comparator
# VREF - Internal Voltage Reference
# USB - Device controller
# 2 x SPI, 2 x SCI and 1 x I2C
One of the first things you learn about operational amplifiers (op amps) is that the op amp's gain is very high. Now, let's connect a feedback resistor across it, from the output to the -input. When you put some input current into the -input (also known as the summing point), the gain is so high that all of the current must go through the feedback resistor. So, the output will be VOUT = -(IIN × RF). That's neat (Fig. 1). While we used to call this a "current-to-voltage converter," which it is indeed, it's also sometimes referred to as a "transimpedance amplifier," where the "gain" or "transimpedance" is equal to RF.
este articulo completo esta en
transimpedance amplifierssaludos, creo que traduciendolo es un convertidor de corriente a voltaje, me imagino que una de las aplicaciones es para un medidor de energia, que usaria un transformador de corriente, por favor de corregirme si es que he hecho una suposición tonta, saludos
aqui pongo una nota de national semiconductor, mucho mas completa
national note
