參數(shù)資料
型號(hào): OPA843
英文描述: Wideband, Low Distortion, Medium Gain, Voltage-Feedback OPERATIONAL AMPLIFIER
中文描述: 寬帶,低失真,中等增益,電壓反饋運(yùn)算放大器
文件頁(yè)數(shù): 6/22頁(yè)
文件大小: 377K
代理商: OPA843
OPA843
SBOS268A
6
www.ti.com
TYPICAL CHARACTERISTICS: V
S
=
±
5V
(Cont.)
T
A
= +25
°
C, G = +5, R
F
= 402
, R
G
= 100
, and R
L
= 100
, unless otherwise noted.
INPUT VOLTAGE AND CURRENT NOISE DENSITY
Frequency (Hz)
10
2
10
4
10
5
10
6
10
3
10
7
V
H
C
H
10
1
Voltage Noise
Current Noise
2.0nV/
Hz
2.8pA/
Hz
2-TONE, 3RD-ORDER
INTERMODULATION INTERCEPT
Frequency (MHz)
10
15
20
25
30
35
40
45
50
55
60
65
70
I
55
50
45
40
35
30
25
G = +5
OPA843
50
50
50
402
100
P
O
P
I
NONINVERTING GAIN FLATNESS TUNE
Frequency (MHz)
1
100
10
1k
D
0.40
0.30
0.20
0.10
0
0.10
0.20
0.30
0.40
V
O
= 200mVp-p
A
V
= +4
NG = 4.5
NG = 4
NG = 5.5
NG = 5
External Compensation
See Figure 10
LOW GAIN INVERTING BANDWIDTH
Frequency (MHz)
1
100
10
1k
N
3
2
1
0
1
2
3
4
5
6
V
O
= 200mVp-p
G =
2
G =
1
G =
3
External Compensation
See Figure 11
RECOMMENDED R
S
vs CAPACITIVE LOAD
Capacitive Load (pF)
1
10
100
1k
R
S
)
100
10
1
G = +5
FREQUENCY RESPONSE vs CAPACITIVE LOAD
Frequency (Hz)
10
6
10
8
10
7
10
9
N
17
14
11
8
5
2
R
S
adjusted to cap load.
C = 10pF
C = 22pF
OPA843
R
S
50
1k
C
L
402
100
V
O
V
I
1k
is optional.
C = 100pF
C = 47pF
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