The Texas Instruments XTR106PA is a precision, low-power, two-wire current transmitter that integrates key components to simplify the task of converting a variable signal into an industry-standard 4-20mA current output. It's part of TI's extensive range of analog ICs dedicated to process control applications.
Key Features and Benefits
Integrated On-Chip Features: This device includes programmable gain instrumentation amplifier, voltage-controlled oscillator (VCO), precision voltage reference, and two op-amp circuits.
Flexible Sensor Input Range: Designed to support a wide variety of sensors including RTDs, thermocouples, pressure sensors and other transducers with its configurable input.
High Accuracy: The on-chip voltage reference along with low offset amplifiers ensures high accuracy in signal conversion which is critical for precise measurements required in industrial settings.
Low Power Consumption: Optimized for energy efficiency which makes it suitable for remote locations where power availability might be limited or battery operation may be necessary.
Two-Wire System Compatibility: Being compatible with the standard two-wire system simplifies integration into existing infrastructure without additional wiring cost.
Robust Industrial Design: With operating temperature ranges from -40°C to +85°C ensuring reliable performance even under harsh conditions typical in industrial environments.
Applications
The XTR106PA can be used across various industries requiring accurate data collection from field instruments such as:
It's particularly useful where robustness against environmental factors like noise interference and long-distance signaling are required.
Product Parameters
Supply Voltage Range : 7.5V – 36V
Output Current Range : 4 mA – 20 mA
Operating Temperature Range : -40°C – +85°C
Package Type : PDIP (Plastic Dual In-line Package)
In summary, the TI XTR106PA offers a highly reliable solution for transmitting analog signals over long distances using current loops widely adopted in automated industrial processes due to their inherent noise immunity and simplicity.
XTR106PA Pin Information
The Texas Instruments XTR106PA is an integrated 4-20mA current loop transmitter that comes in a 14-pin PDIP (Plastic Dual In-line Package). Here's a brief overview of the pin configuration and functions for this device:
Texas INSTRUMENTS XTR106PA Pin Physical map
Pin Configuration:
VREG: This is the voltage regulator output. It typically provides a stable reference voltage used by other parts of the circuit.
RG: Provides connection to an external resistor which sets the transducer gain.
+EXC: Excitation Voltage Output Positive Terminal, often used to power bridge-type sensors like strain gauges or pressure sensors.
–EXC: Excitation Voltage Output Negative Terminal.
+IN: Non-inverting Input to the Instrumentation Amplifier; connect sensor signal here.
–IN: Inverting Input to the Instrumentation Amplifier; connect sensor signal here for differential measurements or ground for single-ended measurements.
REF OUT/TEST1: Reference Voltage Output / Test Pin 1 – Normally connected through a decoupling capacitor to ground, it can also be used during factory testing.
Pin 8 - 11: These pins are not generally assigned specific functions in typical data sheets and may be related to internal connections or test features depending on TI's design.
Iout/Vout (Output): Current Output/Voltage Output – The loop current output that sources into an external load resistance at V+, providing your standard 4-20mA signal based on input from +IN and –IN pins.
Pin 13 - 14: Like pins 8-11, these are typically not user-accessible pins and serve either no connection (NC), internal circuitry purposes, or factory testing configurations.
XTR106PA PIn Configuration table