Datasheet

www.ti.com

Layout Recommendations

can be split into separate capacitors to ground with the double value; this technique increases the

common-mode filtering. Another capacitor, C

, set equal to C

can continue to be used from the negative

input to ground to limit the high-frequency gain to 2.

As with the single-ended input, the differential input filter component values can be calculated with the

help of the TI FilterPro active filter design program available on the TI Web site.

5 Layout Recommendations

5.1 GND Connections

The GND pins of the DRV632 must be routed separately back to the decoupling capacitor in order to

facilitate proper device operation. If the GND pins are connected directly to each other, the device

functions without risk of failure, but noise and THD performance can be reduced.

On the DRV632EVM, a star ground routing pattern is used; the star point is located directly below the

DRV632 device itself.

6 Related Documentation from Texas Instruments

The following related documents are available through the Texas Instruments Web site at

http://www.ti.com.These documents have detailed descriptions of the integrated circuits used in the design

of the DRV632EVM.

Table 4. Related Documentation

Part Number Literature Number

DRV632 SLOS681 data sheet

SLOU301–January 2010 DRV632EVM Evaluation Module

Submit Documentation Feedback