THS3215 Datasheet, PDF (18/71 Pages) Texas Instruments – THS3215 650-MHz, Differential to Single-Ended DAC Output Amplifier

THS3215
SBOS780A – MARCH 2016 – REVISED APRIL 2016
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Typical Characteristics: OPS only (continued)
at +V_CC = 6.0 V, –V_CC = –6.0 V, 25-Ω D2S source impedance, V_REF = GND, R_F = 249 Ω, R_G = 162 Ω, OPS A_V = 2.5V/V, OPS
R_LOAD = 100 Ω at pin 11, OPS enabled (DISABLE = GND), external input path selected (PATHSEL = +V_CC), and T_J ≈ 25°C
(unless otherwise noted)
50
10
45
A_V = 2.5 V/V
A_V = 5 V/V
9
40
A_V = 10 V/V
8
35
7
30
25
20
15
10
5
0
1
10
100
Load Capacitance (pF)
See Table 6 for R_F values vs OPS gain
1k
D043
6
5
0 pF
4.7 pF
4
10 pF
22 pF
3
47 pF
100 pF
2
220 pF
1
470 pF
1nF
0
1M
10M
100M
Frequency (Hz)
V_OUT = 500 mV_PP, see Figure 43 for R_S value
1G
D044
Figure 43. Series Output Resistance vs Load Capacitance
-20
47 pF
-30
100 pF
220 pF
330 pF
-40
-50
-60
-70
-80
Figure 44. Frequency Response vs Load Capacitance
-20
47 pF
-30
100 pF
220 pF
-40
330 pF
-50
-60
-70
-80
-90
-90
1M
10M
20M
Frequency (Hz)
D045
±V_CC = ±7.5 V, R_F = 158 Ω, A_V = 5 V/V, V_OUT = 10 V_PP, see
Figure 43 for R_S value
Figure 45. HD2 vs Load Capacitance
6
2 V_PP
10 V_PP
4
-100
1M
10M
20M
Frequency (Hz)
D046
±V_CC = ±7.5 V, R_F = 158 Ω, A_V = 5 V/V, V_OUT = 10 V_PP, see
Figure 43 for R_S value
Figure 46. HD3 vs Load Capacitance
6
2 V_PP
10 V_PP
4
2
2
0
0
-2
-2
-4
-4
-6
Time (50 ns/div.)
D047
±V_CC = ±7.5 V, C_LOAD = 100 pF, R_F = 158 Ω, A_V = 5 V/V, see
Figure 43 for R_S value
Figure 47. Pulse Response
-6
Time (50 ns/div)
D048
±V_CC = ±7.5 V, C_LOAD = 150 pF, R_F = 158 Ω, A_V = 5 V/V, see
Figure 43 for R_S value.
Figure 48. Pulse Response
18
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