Datasheet

External
Pin
+V
CC
-V
CC
Internal
Circuitry
OPA4872
www.ti.com SBOS346C –JUNE 2007–REVISED MARCH 2011
e) Socketing a high-speed part like the OPA4872
is not recommended. The additional lead length and
pin-to-pin capacitance introduced by the socket can
create an extremely troublesome parasitic network
that can make it almost impossible to achieve a
smooth, stable frequency response. Best results are
obtained by soldering the OPA4872 onto the board.
INPUT AND ESD PROTECTION
Figure 36. Internal ESD Protection
The OPA4872 is built using a very high-speed
complementary bipolar process. The internal junction
These diodes provide moderate protection to input
breakdown voltages are relatively low for these very
overdrive voltages above the supplies as well. The
small geometry devices. These breakdowns are
protection diodes can typically support 30mA
reflected in the Absolute Maximum Ratings table. All
continuous current. Where higher currents are
device pins have limited ESD protection using internal
possible (for example, in systems with ±15V supply
diodes to the power supplies as shown in Figure 36.
parts driving into the OPA4872), current-limiting
series resistors should be added into the two inputs.
Keep these resistor values as low as possible
because high values degrade both noise performance
and frequency response.
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Product Folder Link(s): OPA4872