ABSTRACT
Let's look at a specific device to get a feel for the numbers. The Melles Griot silicon photodiode 13 DSI 005 has junction capacitance of 72 pF when the reverse bias is zero. The shunt resistance is 60 MQ, so we "wire in" an intentional parallel resistor of 0.60 MQ, making the parallel combination 0.594 MQ. The complete circuit thus has a first-order response with r = 42. 7j..tsec. If we use a shutter to apply a
