OPA687 Burr-Brown, OPA687 Datasheet - Page 6

• Manufacturer Part Number: OPA687
• Description: Wideband / Ultra-Low Noise / Voltage Feedback OPERATIONAL AMPLIFIER With Power Down
• Manufacturer: Burr-Brown

TYPICAL PERFORMANCE CURVES: V
R
F
= 750 , R
–100
10.0
0.10
–50
–60
–70
–80
–90
1.0
50
45
40
35
30
25
20
15
10
5
0
100
1
1
G
V
R
= 39.2 , G = +20 and R
INPUT VOLTAGE and CURRENT NOISE DENSITY
O
L
®
G = +30
2nd HARMONIC DISTORTION vs FREQUENCY
= 2Vp-p
= 100
Current Noise
Voltage Noise
OPA687
1k
R
S
Capacitive Load (pF)
vs CAPACITIVE LOAD
G = +20
Frequency (MHz)
G = +51
10k
Frequency (Hz)
L
10
= 100
100k
unless otherwise noted (Figure 1).
0.95nV/ Hz
2.5pA/ Hz
10
1M
10M
100
20
6
S
–100
–50
–60
–70
–80
–90
50
45
40
35
30
25
20
15
10
28
27
26
25
24
23
22
21
20
19
18
= 5V
10
1
1
P
V
I
V
R
IN
O
39.2
L
FREQUENCY RESPONSE vs CAPACITIVE LOAD
20
= 2Vp-p
TWO-TONE, 3rd-ORDER INTERMODULATION
3rd HARMONIC DISTORTION vs FREQUENCY
= 100
39.2
50
OPA687
750
30
(CONT)
OPA687
INTERCEPT vs FREQUENCY
1k
750
40
R
C
is optional
S
L
Frequency (MHz)
Frequency (MHz)
10
Frequency (MHz)
50
50
50
C
1k
C
L
L
V
= 100pF
= 50pF
O
60
G = +30
P
O
C
70
L
= 10pF
10
100
80
G = +20
G = +51
C
L
90
= 20pF
100
500
20