4

3

2

7

6

LMH6702

+

-

+5V

-5V

6.8µF

.01µF

6.8µF

.01µF

25:

0.1µF

YIELD DESIRED

=

4

3

2

7

6

LMH6702

+

-

+5V

-5V

6.8µF

.01µF

6.8µF

.01µF

0.1µF

13

LMH6702

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SNOSA03H – NOVEMBER 2002 – REVISED MAY 2016

Product Folder Links: LMH6702

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Copyright © 2002–2016, Texas Instruments Incorporated

8 Application and Implementation

NOTE

Information in the following applications sections is not part of the TI component

specification, and TI does not warrant its accuracy or completeness. TI’s customers are

responsible for determining suitability of components for their purposes. Customers should

validate and test their design implementation to confirm system functionality.

8.1 Application Information

The LMH6702 achieves its excellent pulse and distortion performance by using the current feedback topology.

The loop gain for a current feedback op amp, and hence the frequency response, is predominantly set by the

feedback resistor value. The LMH6702 is optimized for use with a 237-

Ω feedback resistor. Using lower values

can lead to excessive ringing in the pulse response while a higher value will limit the bandwidth.

8.2 Typical Application

8.2.1 Feedback Resistor

The LMH6702 achieves its excellent pulse and distortion performance by using the current feedback topology.

The loop gain for a current feedback op amp, and hence the frequency response, is predominantly set by the

feedback resistor value. The LMH6702 is optimized for use with a 237-

Ω feedback resistor. Using lower values

can lead to excessive ringing in the pulse response while a higher value will limit the bandwidth.

Figure 24. Recommended Non-Inverting Gain Circuit

Figure 25. Recommended Inverting Gain Circuit