THS3217 Datasheet, PDF (52/73 Pages) Texas Instruments – THS3217 DC to 800-MHz, Differential-to-Single-Ended, DAC Output Amplifier

THS3217
SBOS766B – FEBRUARY 2016 – REVISED FEBRUARY 2016
10 Application and Implementation
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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.
10.1 Application Information
10.1.1 Typical Applications
The five example designs presented show a good, but not comprehensive, range of the possible solutions that
the THS3217 provides. Numerous more configurations are clearly possible to the creative designer.
10.1.1.1 High-Frequency, High-Voltage, Dual-Output Line Driver for AWGs
6V
6V
Differential
Filter
VPATHSEL = 3.3 V
16
15
14
13
124
50 k
1
100
x1
50 k
50
2 x1
+
18.5 k
12
OPS AV= 2.84 V/V
232
49.9
11
VOUT= 5 VPP
Either 2.5 VPP
or
10 VPP at Load
VO
To
50-Ÿ /RDG
250
500
3 x1
10
18.5 k
4
5
±6 V
9
6
7
8
±6 V
100-MHz, 3rd-order Bessel filter
100
33 nH
50-MHz, 3rd-order
Bessel filter
150 nH
200
10
20 pF
49.9 Ÿ
10
110 pF
+15V
+
THS3091
AV= 4.4 V/V
± THS3091
-15V
1k
294
10 pF
52 pF ₂₅₅
Figure 95. Dual-Channel Design: 5 V_PP at THS3217 Output and 20 V_PP at THS3091 Output
10.1.1.1.1 Design Requirements
For this design example, use the parameters listed in Table 8 as the input parameters.
Table 8. Dual-Output Design Specifications
DESIGN PARAMETER
High-frequency, THS3217 channel
High-voltage, THS3091 channel
EXAMPLE VALUE
5-V_PP, 100-MHz bandwidth
20-V_PP, 40-MHz bandwidth
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