THS6012_16 Datasheet, PDF (28/37 Pages) Texas Instruments – 500-mA DUAL DIFFERENTIAL LINE DRIVER

THS6012
SLOS226F – SEPTEMBER 1998 – REVISED JUNE 2012
R_G
R_F
–
THS6012
+
V_O
R1
V_I
R_A
R2
C1
For Stable Operation:
R2
R1 || R_A ^≥
R_F
R_G
( ) ^{VO ≅ VI}
1+
R_F
R_G
sR1C1
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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.
620 Ω
620 Ω
75 Ω Transmission Line
–
75 Ω
V_I
+
V_O1
THS6012
75 Ω
N Lines
75 Ω
75 Ω
75 Ω
V_ON
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.
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