參數(shù)資料
型號: LMH6502
廠商: National Semiconductor Corporation
英文描述: Wideband, Low Power, Linear-in-dB Variable Gain Amplifier
中文描述: 寬帶,低功耗,線性以dB可變增益放大器
文件頁數(shù): 3/19頁
文件大?。?/td> 941K
代理商: LMH6502
Electrical Characteristics
(Note 2) (Continued)
Unless otherwise specified, all limits guaranteed for T
= 25C, V
=
±
5V, A
= 10, V
= 0V, R
F
= 1k
, R
G
= 174
,
V
IN_DIFF
=
±
0.1V, R
L
= 100
, V
G
= +2V.
Boldface
limits apply at the temperature extremes.
Symbol
DC & Miscellaneous Performance
GACCU
Gain Accuracy (See Application
Note)
Parameter
Conditions
Min
(Note 6)
Typ
(Note 6)
Max
(Note 6)
Units
V
G
= 2.0V
1V
<
V
G
<
2V
V
G
= 2.0V
1
<
V
G
<
2V
0.0
+0.6
dB
+0.6/0.3
+3.1/3.6
±
0.6
+2.8/3.9
1.84
1.91
G Match
Gain Matching (See Application
Note)
dB
K
Gain Multiplier
(See Application Notes)
Input Voltage Range
1.61
1.58
±
2.0
±
1.70
±
0.3
±
0.12
±
1.70
±
1.56
1.72
V/V
V
CM
Pin 3 & 6 Common Mode,
|CMRR|
>
55dB (Note 9)
Between pins 3 & 6
±
2.2
V
V
IN_DIFF
Differential Input Voltage
±
0.39
V
I
RG_MAX
R
G
Current
Pins 4 & 5
±
2.22
mA
I
BIAS
Bias Current
Pins 3 & 6(Note 7)
9
18
20
5
6
μA
Pins 3 & 6 (Note 7),
V
S
=
±
2.5V
Pin 3 & 6(Note 8)
Pin 3 & 6
2.5
TC I
BIAS
I
OFF
Bias Current Drift
Offset Current
100
0.01
nA/C
2.0
3.6
μA
TC I
OFF
R
IN
C
IN
I
VG
TC I
VG
R
VG
C
VG
V
OUT
Offset Current Drift
Input Resistance
Input Capacitance
V
G
Bias Current
V
G
Bias Drift
V
G
Input Resistance
V
G
Input Capacitance
Output Voltage Range
(Note 8)
Pin 3 & 6
Pin 3 & 6
Pin 2, V
G
= 0V(Note 7)
Pin 2(Note 8)
Pin 2
Pin 2
R
L
= 100
5
nA/C
k
pF
μA
nA/C
k
pF
750
5
300
20
10
1.3
±
3.20
±
3.00
±
2.95
±
3.95
±
3.82
V
R
L
= Open
±
4.00
R
OUT
I
OUT
Output Impedance
Output Current
DC
V
OUT
=
±
4V from Rails
0.1
±
90
mA
±
80
±
75
V
O
OFFSET
+PSRR
Output Offset Voltage
0V
<
V
G
<
2V
±
80
±
300
±
380
47
45
41
40
mV
+Power Supply Rejection Ratio
(Note 10)
Power Supply Rejection Ratio
(Note 10)
Common Mode Rejection Ratio
(Note 9)
Supply Current
Input Referred, 1V change,
V
G
= 2.2V
Input Referred, 1V change,
V
G
= 2.2V
Input Referred,V
G
= 2V
1.8V
<
V
CM
<
1.8V
No Load
69
dB
PSRR
58
dB
CMRR
72
dB
I
S
27
38
41
16
19
mA
V
S
=
±
2.5V, R
L
= Open
9.3
L
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