Dual channel-to-channel isolated universal analog input module for PLC

The TIDA-00550, dual channel-to-channel isolated universal analog input module reference design for programmable logic controllers (PLC), combines precision and flexibility. This TI Design used in conjunction with sensor transmitters can measure standard input voltages and currents as well as thermocouples, RTD and 4-20mA loops. With only four input terminals, it is suited for applications where smallest real-estate, high versatility and performance is required at the same time.  

Features 

• Voltage measurement up to ±12V
• Current measurement up to ±55mA
• Thermocouple and 2wire, 3wire, 4wire RTD support
• 4-20mA loop power supply
• Accuracy:
• IEC61000-4-5 class II (±1kV at 42 Ohm)

Parts Include:

ADS1262     High Resolution, Low Noise, 32-bit, 38kSPS ADC with PGA and Internal Reference 
ISO7141CC 4242-VPK Small-Footprint and Low-Power 3/1 Quad Channel Digital Isolator with Noise filter
LM2903        Dual Differential Comparator
LM5017        7.5-100V Wide Vin, 600mA Constant On-Time Synchronous Buck Regulator
LMT01          0.5°C Accurate 2-pin Temperature Sensor with a Pulse Train Interface
SN74AHC594    8-Bit Shift Registers With Output Registers
SN74LVC1G125 Single Bus Buffer Gate With 3-State Outputs
SN74LVC1G332 Single 3-Input Positive-OR Gate
SN74LVC2G86    Dual 2-Input Exclusive-Or Gate
TLV704               24-V Input Voltage, 150-mA, Ultralow IQ Low-Dropout Regulators
TPS61093 Low Input, 20V/1.1A Step-Up DC/DC Converter with Integrated Power Diode and input/Output Isolation
TPS7A30    Vin -3V to -36V, -200mA, Ultra-Low Noise, High PSRR, Low-Dropout Linear Regulator
TPS7A4101 50V Input, 50mA, Single Output Low-Dropout Linear Regulator
TPS7A49      Vin 3V to 36V, 150mA, Ultra-Low Noise, High PSRR, Low-Dropout Linear Regulator

Learn more by downloading the reference design below