TIPD155: This TI CerTIfied Reference Design implements a two channel combined voltage and current analog output module. The two outputs are independent and can both source and sink voltage and current over the standard industrial output ranges. While the design has been characterized with outputs of ±10 V and ±24 mA, output ranges of 0-5 V, 0-10 V, ±5 V, ±10 V.4-20 mA, 0-20 mA, 0-24 mA, ±20 mA, ±24 mA are possible by adjusting external resistor values. The design includes the necessary external protection elements required to pass the IEC61000-4-2/3/4/5/6 tests along with the measured test data. The protection circuitry does not negatively affect the design and test results showed typical unadjusted errors were <0.1% of the full-scale range (FSR) and calibrated errors were less than 0.01% FSR.
TIPD164: This TI Designs, Precision Verified design implements an analog input module for industrial voltages, currents, and temperature sensors. For industrial outputs, the possible input ranges include: 4-20 mA, 0-20 mA, +/-25 mA, 0-5 V, 0-10 V, +/-5 V, +/-10 V. The design includes conditioning and level-shift circuitry which converts the large industrial outputs into a proper input range for a +5V delta-sigma ADC. The ADC has features to directly acquire information from the RTD and thermocouple sensors over their full temperature range.