This application note evaluates the performance of the AD7534 and AD7535 14-bit digital-to-analog converters (DACs) when operated at temperatures significantly above their specified range, specifically up to 200°C. The document highlights a proprietary low leakage configuration that minimizes output leakage current, thereby reducing linearity and gain errors at high temperatures.
| Resolution | 14-bit |
|---|---|
| Temperature Range | -55°C to +125°C |
| Gain Error (Typical) | Less than 2 LSBs |
Yes, test results show they work very well even when operated above their specified temperature range, with reliable operation demonstrated up to 200°C.
A 1000-hour life test was carried out at 200°C to demonstrate reliable operation.