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Sampling diodes: Difference between revisions
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The original diodes are no longer available. When sampling diodes need replacement, there are two options. They can be scavenged from other | The original diodes are no longer available. When sampling diodes need replacement, there are two options. They can be scavenged from other | ||
gear or replacements can be improvised using modern parts. [[Hewlett-Packard|HP/Avago]] and now Broadcom makes integrated pairs and quads of high-speed Schottky diodes (e.g. HSMS-28xx series). These are a decent replacement for the original diodes. | gear or replacements can be improvised using modern parts. [[Hewlett-Packard|HP/Avago]] and now Broadcom makes integrated pairs and quads of high-speed Schottky diodes (e.g. HSMS-28xx series). These are a decent replacement for the original diodes. | ||
== recommend diode as substitute == | |||
{| class="wikitable" | |||
|- | |||
! Type of Diode | |||
! Unit | |||
! reached risetime | |||
! note | |||
|- | |||
| HSMS2822 || [[4S1]] || 320 ps || meeting specification | |||
|- | |||
| HSMS2822 || [[S-2]] || 120 ps || don't reached specification | |||
|- | |||
| MMDL301 || [[S-2]] || 185 ps || much blowby, not recommend | |||
|- | |||
|} | |||
<gallery> | <gallery> | ||