AD8332_15 Datasheet, PDF (17/56 Pages) Analog Devices – Ultralow Noise VGAs with Preamplifier and Programmable R

0
V_OUT = 1V p-p
–20
INPUT RANGE
–40
LIMITED WHEN
HILO = LO
–60
HILO = LO, HD3
HILO = LO, HD2
–80
–100
HILO = HI, HD3
HILO = HI, HD2
–120
0
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
V_GAIN (V)
Figure 37. Harmonic Distortion vs. VGAIN, f = 1 MHz
0
V_OUT = 1V p-p
–20
INPUT RANGE
–40
LIMITED WHEN
HILO = LO
–60
HILO = LO, HD2
HILO = LO, HD3
–80
HILO = HI, HD3
–100
HILO = HI, HD2
–120
0
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
V_GAIN (V)
Figure 38. Harmonic Distortion vs. VGAIN, f = 10 MHz
10
0
f = 10MHz
HILO = HI
–10
HILO = LO
–20
–30
–40
0
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
V_GAIN (V)
Figure 39. IP1dB Compression vs. VGAIN
AD8331/AD8332/AD8334
0
V_OUT = 1V p-p COMPOSITE (f₁ + f₂)
–10 ^{G = 30dB}
–20
–30
HILO = LO
–40
–50
–60
–70
–80
–90
1M
HILO = HI
10M
FREQUENCY (Hz)
Figure 40. IMD3 vs. Frequency
100M
40
10MHz HILO = HI
35
1MHz HILO = LO
30
10MHz HILO = LO
25
1MHz HILO = HI
20
15
10
5
V_OUT = 1V p-p COMPOSITE (f₁ + f₂)
0
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
V_GAIN (V)
Figure 41. Output Third-Order Intercept (IP3) vs. VGAIN
2mV
100
90
10
0
50mV
10ns
Figure 42. Small Signal Pulse Response, G = 30 dB,
Top: Input, Bottom: Output Voltage, HILO = HI or LO
Rev. G | Page 17 of 56