TC500IJE [Microchip]

The TC500/A/510/514 family are precision analog front ends that implement dual slope A/D converters with up to 17-bit resolution. Each device contains the integrator, zero crossing comparator, and processor interface logic. The TC500 is the base 16-bit max device requiring both positive and negative power supplies. The TC500A offers improved linearity for 17-bit operation. The TC510 adds an on-board negative power supply converter for single-supply operation. The TC514 adds both a negative power supply converter and a 4-input differential analog multiplexer. These devices feature a 3-pin control interface, flexible conversion speed vs. resolution trade-off, automatic input voltage polarity detection, low power dissipation (10mW for TC500/TC500A, 18mW for TC510/TC514), and wide analog input range (±4.2V for TC500A/TC510). They directly accept bipolar and differential input signals.