SBAK047 March 2025 ADC3664-SEP
6.1 Single-Event Latch-Up (SEL) Results
During SEL characterization, the device was heated using forced hot air, maintaining the DUT temperature at 125°C. The die temperature was monitored prior to radiation using a FLIR IR-camera.
The species used for the SEL testing was Silver (109Ag) ion with an angle-of-incedence of 0° for an LETEFF = 79MeV×cm2/ mgm. Flux of 105 ions / cm2× s and a fluence of 107 ions/cm2 were used for the three runs. Run duration to achieve this fluence was less than two minutes. The device was powered up and exposed to the heavy-ions using voltages up to 1.9V, with 1.85V being the maximum recommended operating voltage. No SEL events were observed during all three runs, indicating that the ADC3664-SEP is SEL-free. Table 6-1 shows the SEL test conditions and results. Figure 6-1 shows a typical plot of current versus time for an SEL testing.
| Run Number | Temperature | Unit # | LETEFF (MeV × cm2/mg) | Flux (ions × cm2/s) | Fluence (ions × cm2) | AVDD/IOVDD (V) |
|---|---|---|---|---|---|---|
1 | 125°C | 103 | 51.12 | 1.00 × 105 | 1.00 × 107 | 1.9 |
2 | 125°C | 104 | 51.12 | 1.00 × 105 | 1.50 × 107 | 1.9 |
14 | 125°C | 127 | 51.12 | 1.00 × 105 | 1.00 × 107 | 1.9 |
Figure 6-1 Current Versus Time for ADC3664-SEP at T = 125°C