Datasheet

AD8260
Rev. A | Page 8 of 32
TYPICAL PERFORMANCE CHARACTERISTICS
V
S
(supply voltage) = 3.3 V, T
A
= 25°C, C
L
= 5 pF, f = 10 MHz, preamplifier gain = 2×, R
FB1
and R
FB2
of the preamplifier = 100 Ω,
R
LOAD
of the driver amplifier = 500 Ω, T
X
and R
X
enabled, unless otherwise specified.
5
1
0
2
3
4
GAIN (dB)
FREQUENCY (Hz)
200M
100M
10M1M100k
T = –40°C
V
OUT
= 200mV p-p
T = +105°C
07192-003
T = +25°C
Figure 3. Small-Signal Frequency Response at Three Temperatures of the
High Current Driver—See Figure 51
5
1
0
2
3
4
GAIN (dB)
FREQUENCY (Hz)
200M
100M
10M1M100k
V
S
= +5V
V
OUT
= 200mV p-p
V
S
= +3.3V
V
S
= ±5V
07192-004
Figure 4. Small-Signal Frequency Response of the High Current Driver for
Three Supply Voltages—See Figure 51
5
1
0
2
3
4
GAIN (dB)
FREQUENCY (Hz)
200M
100M
10M1M100k
07192-005
V
LOAD
= 1V p-p
; R
LOAD
= 50Ω
V
LOAD
= 1V p-p; R
LOAD
= 500Ω
V
LOAD
= 2V p-p; R
LOAD
= 50Ω
V
LOAD
= 2V p-p; R
LOAD
= 500Ω
Figure 5. Large-Signal Frequency Response of the High Current Driver for Two
Values of Output Voltage and Two Values of Load Resistance—See Figure 51
20
0
5
10
15
NOISE (nV/√Hz)
FREQUENCY (Hz)
50M10M1M100k
RTO
RTI
07192-006
Figure 6. Input-Referred and Output-Referred Noise of the High Current
Driver—See Figure 52
10
OUTPUT IMPEDANCE (Ω)
FREQUENCY (Hz)
100M10M1M100k
100
0.1
1
07192-007
Figure 7. Output Impedance of the High Current Driver
See Figure 53
–100
HARMONIC DISTORTION (dBc)
LOAD RESISTANCE (Ω)
1k10
010
–40
–20
–60
–80
–90
HD3
HD2
–70
–50
–30
2V p-p
1V p-p
07192-008
Figure 8. Harmonic Distortion (HD2, HD3) vs. Load Resistance for the High
Current Driver—See Figure 54