AD8139_16 Datasheet, PDF (15/27 Pages) Analog Devices – Low Noise, Rail-to-Rail, Differential ADC Driver

AD8139
1.5
±5V
1.0
+5V
0.5
0
–0.5
–1.0
–1.5
V_{O, cm} = 2V p-p
V_{IN, dm} = 0V
TIME (ns)
10ns/DIV
Figure 37. VOCM Large Signal Transient Response
0
V_{IN, cm} = 0.2V p-p
–10 ^{INPUT CMRR = ∆VO, cm/∆VIN, cm}
–20
–30
–40
R_F = R_G = 10kΩ
–50
–60
R_F = R_G = 200Ω
–70
–80
–90
1
10
100
500
FREQUENCY (MHz)
Figure 38. CMRR vs. Frequency
100
10
1
10 100 1k 10k 100k 1M 10M 100M 1G
FREQUENCY (Hz)
Figure 39. Input Voltage Noise vs. Frequency
Data Sheet
6
5
4
3
V_S = +5V
2
1
0
–1
V_{O, cm} = 0.1V p-p
–2
–3
–4
V_{O, cm} = 2.0V p-p
V_S = ±5V V_S = ±5V
–5
–6
–7
–8
V_S = +5V
–9
10
100
FREQUENCY (MHz)
1000
Figure 40. VOCM Frequency Response for Various Supplies
0
V_{O, cm} = 0.2V p-p
–10 ^{VOCM CMRR = ∆VO, dm/∆VO, cm}
–20
–30
–40
–50
–60
–70
–80
–90
1
10
100
500
FREQUENCY (MHz)
Figure 41. VOCM CMRR vs. Frequency
100
10
1
10 100 1k 10k 100k 1M 10M 100M 1G
FREQUENCY (Hz)
Figure 42. VOCM Voltage Noise vs. Frequency
Rev. C | Page 14 of 26