+

–

620

Ω

620

Ω

75

Ω

75

Ω

75

Ω

75

Ω

75

Ω

N Lines

VO1

VON

THS6012

75

Ω Transmission Line

VI

+

–

RF

VO

RG

R2

R1

C1

RA

VI

THS6012

For Stable Operation:

R2

R1 || RA ≥

RF

RG

sR1C1

(

)

RF

RG

1 +

VO ≅ VI

THS6012

SLOS226F – SEPTEMBER 1998 – REVISED JUNE 2012

www.ti.com

Figure 51. Non-Inverting CFB Integrator

Another good use for the THS6012 amplifiers is as very good video distribution amplifiers. One characteristic of

distribution amplifiers is the fact that the differential phase (DP) and the differential gain (DG) are compromised

as the number of lines increases and the closed-loop gain increases. Be sure to use termination resistors

throughout the distribution system to minimize reflections and capacitive loading.

Figure 52. Video Distribution Amplifier Application

EVALUATION BOARD

An evaluation board is available for the THS6012 (literature number SLOP132). This board has been configured

for proper thermal management of the THS6012. The circuitry has been designed for a typical ADSL application

as shown previously in this document. For more detailed information, refer to the THS6012EVM User's Manual

(literature number SLOU034). To order the evaluation board contact your local TI sales office or distributor.

28

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