Datasheet

AD8264
Rev. A | Page 8 of 40
TYPICAL PERFORMANCE CHARACTERISTICS
V
S
= ±2.5 V, T
A
= 25°C, f = 10 MHz, C
L
= 5 pF, R
L
= 500 Ω per output (VGAx, VOHx, VOLx), V
GAIN
= (V
GNHx
− V
GNLO
) = 0 V,
V
VOCM
= GND, V
OFSx
= GND, gain range = 6 dB to 30 dB, unless otherwise specified.
–6
0
6
12
18
24
30
36
–0.7 –0.5 –0.3 –0.1 0.1 0.3 0.5 0.7
GAIN (dB)
V
GAIN
(V)
–40°C
–40°C
+25°C
+25°C
+85°C
+85°C
+105°C
+105°C
07736-004
VGA
DIFFERENTIAL
OUTPUT
Figure 3. Gain vs. V
GAIN
vs. Temperature
–2.0
–1.5
–1.0
–0.5
0
0.5
1.0
1.5
2.0
–0.7 –0.5 –0.3 –0.1 0.1 0.3 0.5 0.7
GAIN ERROR (dB)
V
GAIN
(V)
07736-005
T
A
= +105°C
T
A
= +25°C
T
A
= –40°C
MAX
MIN
Figure 4. Gain Error vs. V
GAIN
vs. Temperature
–4
–3
–2
–1
0
1
2
–0.7 –0.5 –0.3 –0.1 0.1 0.3 0.5 0.7
GAIN ERROR (dB)
1MHz
10MHz
70MHz
100MHz
150MHz
07736-006
V
GAIN
(V)
Figure 5. Gain Error vs. V
GAIN
at Various Frequencies to VGAx
07736-007
HITS
140
120
100
80
60
40
20
0
–0.6 –0.4 –0.2 0 0.2 0.4
GAIN ERROR (dB)
MEAN: –0.1dB
SD: 0.05dB
V
GAIN
= 0V
Figure 6. VGA Absolute Gain Error Histogram
07736-008
HITS
180
150
120
90
60
30
0
19.0 19.5 20.0 20.5 21.0
GAIN SCALING (dB/V)
MEAN: 20.1dB
SD: 0.09dB
Figure 7. Gain Scale Factor Histogram (−0.4 V < V
GAIN
< +0.4 V)
07736-009
HITS
80
60
40
20
0
11.7 11.8 11.9 12.0 12.1
GAIN INTERCEPT (dB)
MEAN: 11.9dB
SD: 0.08dB
Figure 8. VGA Gain Intercept Histogram