SLVK268 June 2026 OPA4H838-SEP
7 Single-Event Transients (SET)
SET are defined as heavy-ion-induced transients upsets on the output of the OPA4H838-SEP.
Testing is performed at room temperature (no external temperature control applied). The heavy-ions species used for SET testing is Silver (109Ag), Krypton (84Kr), Copper (63Cu), Argon (40Ar), and Neon (20Ne) and Nitrogen (14N) for a LETEFF of 48, 30, 20, 8.5, 2.7 and 1.34 MeV·cm2/mg.
Flux of 105 ions×cm2/s and a fluence of 107 ions/cm2 per run are used for the SET characterization discussed in this chapter.
One unit is characterized from 47.5MeV down to 1.34MeV. A PXIe-5172 scope is used to monitor the four output channel signals of the OPA4H838-SEP triggering off a ±10% window. Table 7-1 summarizes the results for the unit tested. As the summary of results shows, the onset for the OPA4H838-SEP occurs at an LETEFF above 1.34 MeV·cm2/mg.
A plot of all overlayed transients for runs 3 and 10 are shown starting with Figure 7-1. Channels 1, 3 and 4 showed mostly consistent negative transients, while channel 2 showed a different behavior with both positive and negative transients. TI believes slight layout differences accounts for the difference.
The largest observed output transients are shown starting with Figure 7-17. Histograms of the observed transient deviation and width for run 3 are shown starting with Figure 7-9
| Run | Supply Voltage (V) | Ion | LETEFF (MeV-cm2/mg) | Range (um) | Total Events (All Ch) | Effective Fluence (ions/cm2) | Average Flux (ions/cm2·s) |
|---|---|---|---|---|---|---|---|
| 3 | 5.5 | 109Ag | 47.5 | 95.1 | 1620 | 9.975E+06 | 9.150E+04 |
| 5 | 3.3 | 109Ag | 47.5 | 95.1 | 519 | 1.000E+07 | 1.198E+05 |
| 7 | 2.5 | 109Ag | 47.5 | 95.1 | 632 | 9.950E+06 | 1.136E+05 |
| 8 | 2.5 | 84Kr | 30.1 | 114.6 | 670 | 9.995E+06 | 9.500E+04 |
| 9 | 3.3 | 84Kr | 30.1 | 114.6 | 525 | 1.000E+07 | 9.910E+04 |
| 10 | 5.5 | 84Kr | 30.1 | 114.6 | 449 | 9.970E+06 | 1.050E+05 |
| 11 | 5.5 | 63Cu | 19.9 | 121 | 399 | 1.002E+07 | 1.018E+05 |
| 12 | 3.3 | 63Cu | 19.9 | 121 | 425 | 1.000E+07 | 1.014E+05 |
| 14 | 2.5 | 63Cu | 19.9 | 121 | 574 | 1.01E+07 | 1.064E+05 |
| 15 | 2.5 | 40Ar | 8.53 | 177.7 | 310 | 1.000E+07 | 1.064E+05 |
| 17 | 3.3 | 40Ar | 8.53 | 177.7 | 218 | 1.002E+07 | 9.819E+04 |
| 18 | 5.5 | 40Ar | 8.53 | 177.7 | 196 | 1.002E+07 | 1.262E+05 |
| 19 | 5.5 | 20Ne | 2.76 | 258 | 6 | 1.000E+07 | 1.036E+05 |
| 20 | 3.3 | 20Ne | 2.76 | 258 | 5 | 9.990E+06 | 1.040E+05 |
| 21 | 2.5 | 20Ne | 2.76 | 258 | 10 | 1.002E+07 | 9.722E+04 |
| 22 | 2.5 | 14N | 1.34 | 368.4 | 0 | 9.973E+06 | 1.123E+05 |
| 23 | 3.3 | 14N | 1.34 | 368.4 |
0 | 9.980E+06 | 1.159E+05 |
| 24 | 5.5 | 14N | 1.34 | 368.4 | 0 | 1.003E+07 | 1.118E+05 |
Figure 7-1 Run 3 (47.5MeV, 5.5V), Channel 1, All Transients
Figure 7-2 Run 3 (47.5MeV, 5.5V), Channel 2, All Transients
Figure 7-3 Run 3 (47.5MeV, 5.5V), Channel 3, All Transients
Figure 7-4 Run 3 (47.5MeV, 5.5V), Channel 4, All Transients
Figure 7-5 Run 10 (30.1MeV, 5.5V), Channel 1, All Transients
Figure 7-6 Run 10 (30.1MeV, 5.5V), Channel 2, All Transients
Figure 7-7 Run 10 (30.1MeV, 5.5V), Channel 3, All Transients
Figure 7-8 Run 10 (30.1MeV, 5.5V), Channel 4, All Transients
Figure 7-9 Run 3 (47.5MeV, 5.5V), Channel 1, Voltage Deviation Histogram
Figure 7-10 Run 3 (47.5MeV, 5.5V), Channel 2, Voltage Deviation Histogram
Figure 7-11 Run 3 (47.5MeV, 5.5V), Channel 3, Voltage Deviation Histogram
Figure 7-12 Run 3 (47.5MeV, 5.5V), Channel 4, Voltage Deviation Histogram
Figure 7-13 Run 3 (47.5MeV, 5.5V), Channel 1, Transient Duration Histogram
Figure 7-14 Run 3 (47.5MeV, 5.5V), Channel 2, Transient Duration Histogram
Figure 7-15 Run 3 (47.5MeV, 5.5V), Channel 3, Transient Duration Histogram
Figure 7-16 Run 3 (47.5MeV, 5.5V), Channel 4, Transient Duration Histogram
Figure 7-17 Run 3 (47.5MeV, 5.5V), Channel 1, Large Transient Example
Figure 7-18 Run 3 (47.5MeV, 5.5V), Channel 2, Large Transient Example
Figure 7-19 Run 3 (47.5MeV, 5.5V), Channel 3, Large Transient Example
Figure 7-20 Run 3 (47.5MeV, 5.5V), Channel 4, Large Transient Example| Supply Voltage (V) | LETEFF (MeV-cm2/mg) | Events (All Channels) | Effective Fluence (ions/cm2) | UB Cross-section |
|---|---|---|---|---|
| 5.5 | 45.6 | 0 | 1.0E+07 | 3.69E-07 |
| Supply Voltage (V) | LETEFF (MeV-cm2/mg) | Events (All Channels) | Effective Fluence (ions/cm2) | UB Cross-section |
|---|---|---|---|---|
| 5.5 | 47.5 | 1620 | 1.0E+07 | 1.701E-04 |
| 30.1 | 449 | 1.0E+07 | 4.925E-05 | |
| 19.9 | 399 | 1.0E+07 | 4.401E-05 | |
| 8.53 | 196 | 1.0E+07 | 2.254E-05 | |
| 2.76 | 6 | 1.0E+07 | 1.306E-06 | |
| 1.34 | 0 | 1.0E+07 | 3.689E-07 | |
| 3.3 | 47.5 | 519 | 1.0E+07 | 5.656E-05 |
| 30.1 | 525 | 1.0E+07 | 5.719E-05 | |
| 19.9 | 425 | 1.0E+07 | 4.674E-05 | |
| 8.53 | 218 | 1.0E+07 | 2.489E-05 | |
| 2.76 | 5 | 1.0E+07 | 1.167E-06 | |
| 1.34 | 0 | 1.0E+07 | 3.689E-07 | |
| 2.5 | 47.5 | 632 | 1.0E+07 | 6.833E-05 |
| 30.1 | 670 | 1.0E+07 | 7.227E-05 | |
| 19.9 | 574 | 1.0E+07 | 6.229E-05 | |
| 8.53 | 310 | 1.0E+07 | 3.465E-05 | |
| 2.76 | 10 | 1.0E+07 | 1.839E-06 | |
| 1.34 | 0 | 1.0E+07 | 3.689E-07 |
Parameters | 2.5V | 3.3V | 5.5V |
|---|---|---|---|
Cross-saturation (cm2) | 6.72E-05 | 5.26E-05 | 9.34E-04 |
Onset (MeV-cm2/mg) | 1.67 | 1.68 | 1.34 |
w | 9.45 | 10.53 | 99.99 |
s | 0.94 | 1.05 | 2.17 |
Figure 7-21 Weibull Fit for 2.5V Supply Voltage (All Channels)
Figure 7-22 Weibull Fit for 3.3V Supply Voltage (All Channels)
Figure 7-23 Weibull Fit for 5.5V Supply Voltage (All Channels)