Datasheet

INPUT AND ESD PROTECTION
External
Pin
+V
CC
−
V
CC
Internal
Circuitry
OPA860
SBOS331C – JUNE 2005 – REVISED AUGUST 2008 ....................................................................................................................................................... www.ti.com
These diodes provide moderate protection to input
overdrive voltages above the supplies as well. The
The OPA860 is built using a very high-speed
protection diodes can typically support 30mA
complementary bipolar process. The internal junction
continuous current. Where higher currents are
breakdown voltages are relatively low for these very
possible (for example, in systems with ± 15V supply
small geometry devices. These breakdowns are
parts driving into the OPA860), current-limiting series
reflected in the Absolute Maximum Ratings table. All
resistors should be added into the two inputs. Keep
device pins are protected with internal ESD protection
these resistor values as low as possible since high
diodes to the power supplies as shown in Figure 64 .
values degrade both noise performance and
frequency response.
Figure 64. Internal ESD Protection
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