參數(shù)資料
型號(hào)： HFA1245
廠商： Intersil Corporation
英文描述： Dual, 420MHz, Low Power, Video, Current Feedback Operational Amplifier with Disable(雙路、420MHz低功耗、電流反饋視頻運(yùn)算放大器)
中文描述： 雙通道，420MHz，低功耗，視頻，具有禁用電流反饋運(yùn)算放大器（雙路，420MHz低功耗，電流反饋視頻運(yùn)算放大器）
文件頁(yè)數(shù)： 3/14頁(yè)
文件大小： 248K
代理商： HFA1245
3
Inverting Input Resistance
B
25
-
56
-
Input Capacitance
B
25
-
2.0
-
pF
Input Voltage Common Mode Range
(Implied by V
IO
CMRR, +R
IN
, and -I
BIAS
CMS
Tests)
A
25, 85
±
1.8
±
1.2
±
2.4
±
1.7
-
V
A
-40
-
V
Input Noise Voltage Density (Note 6)
f = 100kHz
B
25
-
3.5
-
nV/
√
Hz
pA/
√
Hz
Non-Inverting Input Noise Current Density
(Note 6)
f = 100kHz
B
25
-
2.5
-
Inverting Input Noise Current Density
(Note 6)
f = 100kHz
B
25
-
30
-
pA/
√
Hz
TRANSFER CHARACTERISTICS
Open Loop Transimpedance Gain (Note 6)
B
25
-
500
-
k
AC CHARACTERISTICS
-3dB Bandwidth (V
OUT
= 0.2V
P-P
, Note 6)
A
V
= +1, +R
S
= 650
A
V
= +2, R
F
= 750
A
V
= -1, R
F
= 475
A
V
= +1, +R
S
= 650
A
V
= +2, R
F
= 750
A
V
= -1, R
F
= 475
To 25MHz
B
25
-
260
-
MHz
B
25
-
420
-
MHz
B
25
-
280
-
MHz
Full Power Bandwidth
(V
OUT
= 5V
P-P
at A
V
= +2/-1,
4V
P-P
at A
V
= +1, Note 6)
B
25
-
150
-
MHz
B
25
-
115
-
MHz
B
25
-
160
-
MHz
Gain Flatness (A
V
= +2, R
F
= 750
,
V
OUT
= 0.2V
P-P
, Note 6)
B
25
-
±
0.04
±
0.11
-
dB
To 50MHz
B
25
-
-
dB
Minimum Stable Gain
A
Full
-
1
-
V/V
Crosstalk (A
V
= +2, R
F
= 750
,
V
OUT
= 1V
P-P
, Notes 4, 6)
5MHz
B
25
-
-83
-
dB
10MHz
B
25
-
-77
-
dB
OUTPUT CHARACTERISTICS
A
V
= +2, R
F
= 750
,
Unless Otherwise Specified
Output Voltage Swing (Note 6)
A
V
= -1, R
L
= 100
A
25
±
3
±
2.8
±
3.4
±
3
-
V
A
Full
-
V
Output Current (Note 6)
A
V
= -1, R
L
= 50
A
25, 85
50
60
-
mA
A
-40
28
42
-
mA
Output Short Circuit Current
B
25
-
90
-
mA
Closed Loop Output Resistance (Note 6)
DC
B
25
-
0.07
-
Second Harmonic Distortion
(V
OUT
= 2V
P-P
)
10MHz
B
25
-
-50
-
dBc
20MHz
B
25
-
-45
-
dBc
Third Harmonic Distortion
(V
OUT
= 2V
P-P
)
10MHz
B
25
-
-57
-
dBc
20MHz
B
25
-
-50
-
dBc
3rd Order Intercept (Note 6)
20MHz
B
25
-
23
-
dBm
Reverse Isolation (S
12
, Note 6)
TRANSIENT CHARACTERISTICS
A
V
= +2, R
F
= 750
,
Unless Otherwise Specified
Rise and Fall Times (V
OUT
= 0.5V
P-P
)
65MHz
B
25
-
60
-
dB
Rise Time
B
25
-
0.9
-
ns
Fall Time
B
25
-
1.5
-
ns
Overshoot
(V
OUT
= 0.5V
P-P
, V
IN
t
RISE
= 1ns, Note 5)
+OS
B
25
-
5
-
%
-OS
B
25
-
10
-
%
Slew Rate (V
OUT
= 4V
P-P
, A
V
= +1,
R
F
= 560
, +R
S
= 650
)
+SR
B
25
-
1150
-
V/
μ
s
V/
μ
s
-SR (Note 7)
B
25
-
800
-
Electrical Specifications
V
SUPPLY
=
±
5V, A
V
= +1, R
F
= 560
, R
S
= 650
, R
L
= 100
, Unless Otherwise Specified
(Continued)
PARAMETER
TEST CONDITIONS
(NOTE 3)
TEST
LEVEL
TEMP.
(
o
C)
MIN
TYP
MAX
UNITS
HFA1245
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