參數(shù)資料
型號: LT1457
廠商: Linear Technology Corporation
英文描述: Dual, Precision JFET Input Op Amp(雙路,精密型,結(jié)型場效應(yīng)管運算放大器)
中文描述: 雙路,精密JFET輸入運算放大器(雙路,精密型,結(jié)型場效應(yīng)管運算放大器)
文件頁數(shù): 3/8頁
文件大小: 214K
代理商: LT1457
3
LT1457
GBW
I
S
Gain-Bandwidth Product
Supply Current Per Amplifier
Channel Separation
(Note 5)
1.0
1.7
1.8
132
1.0
1.7
1.8
130
MHz
mA
dB
3.0
3.0
DC to 5kHz, V
IN
=
±
10V
LT1457AC
TYP
LT1457C/LT1457S8
MIN
TYP
SYMBOL PARAMETER
CONDITIONS
MIN
MAX
MAX
UNITS
V
S
=
±
15V, T
A
= 25
°
C,V
CM
= 0V unless otherwise noted. (Note 1)
ELECTRICAL CHARACTERISTICS
V
S
=
±
15V, V
CM
= 0V, 0
°
C
T
A
70
°
C, unless otherwise noted.
ELECTRICAL CHARACTERISTICS
LT1457AC
TYP
350
LT1457C/LT1457S8
MIN
TYP
400
500
4
SYMBOL PARAMETER
V
OS
Input Offset Voltage
CONDITIONS
LT1457AC/C
LT1457S8
MIN
MAX
1100
MAX
1800
2300
16
UNITS
G
G
μ
V
μ
V
Average Temperature Coefficient of
Input Offset Voltage
Input Offset Current
Input Bias Current
Large-Signal Voltage Gain
Common-Mode Rejection Ratio
Power Supply Rejection Ratio
Output Voltage Swing
Supply Current Per Amplifier
G
3
10
μ
V/
°
C
I
OS
I
B
A
VOL
CMRR
PSRR
V
OUT
I
S
Warmed Up, T
A
= 85
°
C
Warmed Up, T
A
= 85
°
C
V
O
=
±
10V, R
L
= 2k
V
CM
=
±
10.4V
V
S
=
±
5V to
±
17V
R
L
= 2k
T
A
= –40
°
C
T
A
= 85
°
C
0.1
±
0.2
120
97
100
±
12.7
0.5
±
0.7
0.1
±
0.2
110
95
98
±
12.6
0.6
±
0.9
nA
nA
G
40
84
86
±
12
30
80
83
±
12
V/mV
G
dB
dB
V
mA
mA
G
G
3.8
3.8
1.7
1.7
V
S
=
±
15V, V
CM
= 0V, –40
°
C
T
A
85
°
C, unless otherwise noted. (Note 6)
ELECTRICAL CHARACTERISTICS
The
G
denotes the specifications which apply over the full operating
temperature range.
Note 1:
Typical parameters are defined as the 60% yield of distributions of
individual amplifiers; i.e., out of 100 LT1457s (200 op amps) typically 120
will be better than the indicated specification.
Note 2:
This parameter is tested on a sample basis only.
Note 3:
Current noise is calculated from the formula: i
n
= (2qI
b
)
1/2
, where
q = 1.6 x 10
–19
coulomb. The noise of source resistors up to 1G
swamps the contribution of current noise.
Note 4:
This parameter is not 100% tested.
Note 5:
Gain-Bandwidth product is not tested. It is guaranteed by design
and by inference from the slew rate measurement.
Note 6:
The LT1457 is not tested and not quality-assurance-sampled at
–40
°
C and at 85
°
C. These specifications are guaranteed by design,
correlation, and/or inference from 0
°
C, 25
°
C, and 70
°
C tests.
LT1457AC
TYP
250
LT1457C/LT1457S8
MIN
TYP
330
400
4
SYMBOL PARAMETER
V
OS
Input Offset Voltage
CONDITIONS
LT1457AC/C
LT1457S8
MIN
MAX
900
MAX
1500
1900
16
UNITS
G
G
μ
V
μ
V
Average Temperature Coefficient of
Input Offset Voltage (Note 4)
Input Offset Current
Input Bias Current
Large-Signal Voltage Gain
Common-Mode Rejection Ratio
Power Supply Rejection Ratio
Output Voltage Swing
Supply Current Per Amplifier
G
3
10
μ
V/
°
C
I
OS
I
B
A
VOL
CMRR
PSRR
V
OUT
I
S
Warmed Up, T
A
= 70
°
C
Warmed Up, T
A
= 70
°
C
V
O
=
±
10V, R
L
= 2k
V
CM
=
±
10.4V
V
S
=
±
4.5V to
±
18V
R
L
= 2k
18
±
50
220
98
102
±
12.8
150
±
250
20
±
60
200
96
100
±
12.8
250
±
350
pA
pA
G
70
85
87
±
12
50
80
84
±
12
V/mV
G
dB
dB
V
mA
mA
G
G
G
3.2
3.2
T
A
= 70
°
C
1.7
1.7
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