OPA4872MDREP datasheet(20/24 Pages) TI

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External

-VCC

Internal

Circuitry

INPUT AND ESD PROTECTION

OPA4872-EP

SBOS444 – DECEMBER 2008........................................................................................................................................................................................... www.ti.com

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.

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

30-mA

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 ±15-V 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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OPA4872MDREP Datasheet(PDF) 20 Page - Texas Instruments

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