OPA694 Datasheet, PDF (7/28 Pages) Burr-Brown (TI) – Wideband, Low-Power, Current Feedback Operational Amplifier

OPA694
www.ti.com
SBOS319G – SEPTEMBER 2004 – REVISED JANUARY 2010
TYPICAL CHARACTERISTICS: V_S = ±5V (continued)
At R_F = 402Ω, R_L = 100Ω, and G = +2V/V, unless otherwise noted.
INPUT VOLTAGE AND CURRENT NOISE
1k
55
50
Noninverting Current Noise (24pA/ÖHz)
45
100
40
TWO−TONE, THIRD−ORDER
INTERMODULATION INTERCEPT
P_I
50W
50W
OPA694
P_O
402W
50W
402W
35
Inverting Current Noise (22pA/ÖHz)
10
30
Voltage Noise (2.1nV/ÖHz)
25
1
10 100 1k 10k 100k 1M 10M 100M
Frequency (Hz)
Figure 13.
20
0
10 20 30 40 50 60 70 80 90 100
Frequency (MHz)
Figure 14.
RECOMMENDED R_S vs CAPACITIVE LOAD
60
0dB Peaking Targeted
50
40
30
20
10
0
10
100
Capacitive Load (pF)
Figure 15.
FREQUENCY RESPONSE vs CAPACITIVE LOAD
3
0
-3
-6
V_I
-9 _50W
-12
C_L = 10pF
C_L = 100pF
C_L = 47pF
C_L = 22pF
OPA694
402W
R_S
V_O
C_L
1kW⁽¹⁾
-15
402W
NOTE: (1) 1kW load is optional
-18
1M
10M
100M
1G
Frequency (Hz)
Figure 16.
COMMON−MODE REJECTION RATIO AND
POWER−SUPPLY REJECTION RATIO vs FREQUENCY
70
CMRR
60
+PSRR
50
40
-PSRR
30
20
10
0
100
1k
10k 100k
1M
10M 100M
Frequency (Hz)
Figure 17.
120
110
100
90
80
70
60
50
40
100
OPEN−LOOP Z_OL GAIN AND PHASE
30
0
-30
-60
< Z_OL
-90
20 log |Z_OL|
-120
-150
-180
-210
1k 10k 100k 1M 10M 100M 1G
Frequency (Hz)
Figure 18.
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7
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