OPA830 datasheet(37/45 Pages) TI

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External

-VCC

Internal

Circuitry

INPUT AND ESD PROTECTION

OPA4830

www.ti.com.................................................................................................................................................... SBOS350A – DECEMBER 2006 – REVISED MAY 2008

Socketing

high-speed

part

not

recommended. The additional lead length and

pin-to-pin capacitance introduced by the socket can

create an extremely troublesome parasitic network

which can make it almost impossible to achieve a

smooth, stable frequency response. Best results are

obtained by soldering the OPA4830 directly onto the

board.

Figure 90. Internal ESD Protection

The OPA4830 is built using a very high-speed,

These diodes provide moderate protection to input

complementary bipolar process. The internal junction

overdrive voltages above the supplies as well. The

breakdown voltages are relatively low for these very

protection

diodes

can

typically

support

30mA

small geometry devices. These breakdowns are

continuous

current.

Where

higher

currents

are

reflected in the Absolute Maximum Ratings table. All

possible (that is, in systems with ±15V supply parts

device pins are protected with internal ESD protection

driving into the OPA4830), current-limiting series

diodes to the power supplies, as shown in Figure 90.

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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OPA830 Datasheet(PDF) 37 Page - Texas Instruments

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