Datasheet

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SBOS303C − JUNE 2004 − REVISED AUGUST 2008
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12
TYPICAL CHARACTERISTICS: V
S
= +5V (continued)
R
F
= 402Ω, R
L
= 100Ω, and G = +2, unless otherwise noted.
100
10
1
RECOMMENDED R
S
vs CAPACITIVE LOAD
Capacitive Load (pF)
1 10 100 1000
R
S
(
Ω
)
0dB Peaking Targeted
1.5
1.0
0.5
0
−0.5
−1.0
−1.5
TYPICAL DC DRIFT OVER TEMPERATURE
Ambient Temperature (_ C)
Input Offset Voltage (mV)
15
10
5
0
−5
−10
−15
Input Bias and Offset Current (µV)
−50 −25 0 25 50 75 100 125
10x Input Offset Current (I
OS
)
Right Scale
Input Offset Voltage (V
OS
)
Left Scale
Input Bias Current (I
B
)
Right Scale
3500
3000
2500
2000
1500
1000
500
0
TYPICAL INPUT OFFSET VOLTAGE DISTRIBUTION
Input Offset Voltage (mV)
Count
−
1.08
−
0.97
−
0.86
−
0.76
−
0.65
−
0.54
−
0.43
−
0.32
−
0.22
−
0.11
0
0.11 0.22 0.32 0.43 0.54 0.65 0.76 0.86 0.97 1.08
Mean =
−
490
µ
V
Standard Deviation = 90
µ
V
Total Count = 6115
8
7
6
5
4
3
2
1
0
−
1
−
2
−
3
FREQUENCY RESPONSE vs CAPACITIVE LOAD
Frequency (MHz)
Normalized Gain to Capacitive Load (dB)
1 10 100 300
C
L
=10pF
C
L
= 22pF
C
L
=47pF
C
L
= 100pF
402Ω
R
S
OPA820
V
I
+5V
V
O
57.6Ω
1kΩ
(1)
806
Ω
806Ω
C
L
402Ω
0.01
µ
F
0.01
µ
F
NOTE: (1) 1kΩisoptional.
125
100
75
50
25
SUPPLY AND OUTPUT CURRENT vs TEMPERATURE
Ambient Temperature (
_
C)
Output Current (mA)
12
9
6
3
0
Supply Current (mA)
−
50
−
25 0 25 50 75 100 125
Source Output Current
Supply Current
Sink Output Current
2000
1800
1600
1400
1200
1000
800
600
400
200
0
TYPICAL INPUT OFFSET CURRENT DISTRIBUTION
Input Offset Current (nA)
Count
−
380
−
342
−
304
−
266
−
228
−
190
−
152
−
114
−
76
−
38
0
38 76
114 152 190 228 266 304 342 380
Mean = 43nA
Standard Deviation = 50nA
Total Count = 6115