ADA4950-1 Datasheet, PDF (9/28 Pages) Analog Devices – Low Power, Selectable Gain Differential ADC Driver, G = 1, 2, 3

ADA4950-1/ADA4950-2
TYPICAL PERFORMANCE CHARACTERISTICS
TA = 25°C, +VS = 5 V, −VS = −5 V, VOCM = 0 V, G = 1, RT = 53.6 Ω (when used), RL, dm = 1 kΩ, unless otherwise noted. Refer to Figure 49
for test setup. Refer to Figure 52 for signal definitions.
2
1 ^VOUT, dm ^{= 100mV p-p}
0
–1
G = 1, R_T = 53.6Ω
G = 2, R_T = 57.6Ω
–2
G = 3, R_T = 61.9Ω
–3
–4
–5
–6
–7
–8
1
10
100
1000
FREQUENCY (MHz)
Figure 7. Small-Signal Frequency Response for Various Gains
2
1 ^VOUT, dm ^{= 2V p-p}
0
–1
G = 1, R_T = 53.6Ω
G = 2, R_T = 57.6Ω
–2
G = 3, R_T = 61.9Ω
–3
–4
–5
–6
–7
–8
1
10
100
1000
FREQUENCY (MHz)
Figure 10. Large-Signal Frequency Response for Various Gains
2
1 ^VOUT, dm ^{= 100mV p-p}
0
–1
V_S = ±5V
V_S = ±2.5V
–2
–3
–4
–5
–6
–7
–8
1
10
100
1000
FREQUENCY (MHz)
Figure 8. Small-Signal Frequency Response for Various Supplies
2
1
V_{OUT, dm} = 2V p-p
0
–1
V_S = ±5V
–2
V_S = ±2.5V
–3
–4
–5
–6
–7
–8
1
10
100
1000
FREQUENCY (MHz)
Figure 11. Large-Signal Frequency Response for Various Supplies
2
1 ^VOUT, dm ^{= 100mV p-p}
0
–1
T_A = –40°C
T_A = +25°C
–2
T_A = +105°C
–3
–4
–5
–6
–7
–8
1
10
100
1000
FREQUENCY (MHz)
Figure 9. Small-Signal Frequency Response for Various Temperatures
2
1
V_{OUT, dm} = 2V p-p
0
–1
T_A = –40°C
T_A = +25°C
–2
T_A = +105°C
–3
–4
–5
–6
–7
–8
1
10
100
1000
FREQUENCY (MHz)
Figure 12. Large-Signal Frequency Response for Various Temperatures
Rev. 0 | Page 9 of 28