THS770006_10 Datasheet, PDF (8/36 Pages) Texas Instruments – Broadband, Fully-Differential, 14-/16-Bit ADC DRIVER AMPLIFIER

THS770006
SBOS520 – JULY 2010
www.ti.com
TYPICAL CHARACTERISTICS
At T_A = +25°C, V_S+ = +5V, V_OCM = +2.5V, V_OUT = 2V_PP, R_L = 400Ω differential, G = +6dB, differential input and output, and
input and output pins referenced to midsupply, unless otherwise noted. Measured using EVM as discussed in Test Circuits
section.
FREQUENCY RESPONSE MAGNITUDE
(WITH TRANSFORMERS)
9
Measured on EVM using transformers.
6 ^{See Frequency Response: 200mVPP, 2VPP, 3VPP section.}
3
FREQUENCY RESPONSE MAGNITUDE
(NO TRANSFORMERS)
12
V_OUT = 200mV_PP
9
6
3
0
0
-3
-6
-9
10M
V_O = 200mV_PP
V_O = 2V_PP
V_O = 3V_PP
100M
1G
Frequency (Hz)
10G
Figure 1.
-3
-6 Measured on EVM;
no transformers.
-9 See Frequency Response:
V_OUT = 2V_PP
V_OUT = 3V_PP
-12 ^{200mVPP, 2VPP, 3VPP section.}
100k
1M
10M
100M
1G
10G
Frequency (Hz)
Figure 2.
FREQUENCY RESPONSE PHASE
(NO TRANSFORMERS)
45
0
V_OUT = 200mV_PP
-45
-90
-135
Measured on EVM;
no transformers.
See Frequency Response:
V_OUT = 2V_PP
V_OUT = 3V_PP
200mV_PP, 2V_PP, 3V_PP section.
-180
100k
1M
10M
100M
1G
10G
Frequency (Hz)
Figure 3.
SMALL- AND LARGE-SIGNAL PULSE RESPONSE
3
2
1
0
-1
-2
-3
0
0.5V Step Input
2.5V Step Input
20
40
60
80
100
120
TIme (ns)
Figure 4.
SLEW RATE
vs OUTPUT VOLTAGE STEP
4000
3000
2000
1000
0
1
2
3
4
5
V_OUT (V_PP)
Figure 5.
2.0
1.5
1.0
0.5
0
-0.5
-1.0
-1.5
-2.0
0
OVERDRIVE RECOVERY
4
V_IN
Differential V_OUT 3
2
1
0
-1
-2
-3
-4
20
40
60
80
100
Time (ns)
Figure 6.
8
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