[FAQ] Are there reference designs that can help me build a 4-20mA transmitter?

To find reference designs leveraging the best in TI technology – from analog and power management to embedded processors, visit https://www.ti.com/reference-designs/index.html. All designs include a schematic, test data and design files.

I will link a few reference designs below.

• Discrete 2-wire transmitter: TIPD158
• Discrete 3-wire transmitter: TIPD102
• Integrated 2-wire transmitter: 
  • XTR105: TIPD161
  • XTR112: TIPD202
  • XTR116: TIPD190
  • XTR117: TIPD126
• Integrated 3-wire transmitter: 
  • XTR111: TIDA-01536, TIDA-01471, TIDA-00760
  • XTR300: TIDA-00454, TIPD155
  • XTR305: TIDA-01633
  • DAC8771: TIDA-01535
  • DAC8775: TIPD216, TIPD215
  • DAC8760: TIPD153, TIPD119, TIDA-00760

The following link will be updated with current reference designs specific to TI's XTR products.

CerTIfied Reference Designs:

The below reference designs are CerTIfied Reference Designs that include the IEC protection circuitry and results. CerTIfied Designs offer the theory, component selection, simulation, complete PCB schematic & layout, bill of materials, measured performance, and certification testing of useful circuits.

• 2-wire XTR transmitters: TIPD126, TIPD161 , TIPD190
• 3-wire XTR transmitter: TIPD155
• 3-wire DAC transmitter: TIPD153 

The attached articles go into more detail on providing protection to 2 and 3-wire transmitters. 

Industrial DACs: Protecting 3-wire analog outputs

Industrial DACs: How to protect 2-wire transmitters