5 Data and Recommendations

The data collected was optimized for each transistor using the Remote Temperature Sensor Calibration Tool. Table 5-1 presents the results, including the η-factor register settings, offset register settings and recommended temperature range. These settings and the recommendations below are applicable only to Texas Instruments’ remote temperature sensors. The recommended temperature range was limited for BJTs that showed large variance when exceeding this range. This data was collected only on limited sample size and does not account for lot to lot variations over time. Some transistors were removed from the table as part to part variation was too large to recommend.

The following recommendations were made by considering two criteria. First, the errors after optimizing the η-factor correction and offset register settings should be within ±1°C across the recommended temperature range. Second, among the eight channels that were tested for each device, the temperature measurements should be consistent, indicating little variation from device to device.