The OPA695 is built using a very high-speed, complementary bipolar process. The internal junction breakdown voltages are relatively low for these small geometry devices. These breakdowns are reflected in the Absolute Maximum Ratings, where an absolute maximum ±6.5-V supply is reported. All device pins have limited ESD protection using internal diodes to the power supplies, as shown in Figure 6-3.

These diodes also provide moderate protection to input overdrive voltages above the supplies. The protection diodes can typically support 10-mA continuous current. Where higher currents are possible (for example, in systems with ±15-V supply parts driving into the OPA695), add current-limiting series resistors into the two inputs. Keep these resistor values as low as possible because high values degrade both noise performance and frequency response.

Figure 6-3 Internal ESD Protection