参数资料
| 型号： | LT1491CN#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 7/12页 |
| 文件大小： | 0K |
| 描述： | IC OP-AMP R-R IN/OUT QUAD 14-DIP |
| 标准包装： | 25 |
| 系列： | Over-The-Top® |
| 放大器类型： | 通用 |
| 电路数： | 4 |
| 输出类型： | 满摆幅 |
| 转换速率： | 0.07 V/µs |
| 增益带宽积： | 200kHz |
| 电流 - 输入偏压： | 4nA |
| 电压 - 输入偏移： | 350µV |
| 电流 - 电源： | 50µA |
| 电流 - 输出 / 通道： | 25mA |
| 电压 - 电源，单路/双路(±)： | 2 V ~ 44 V，±1 V ~ 22 V |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 通孔 |
| 封装/外壳： | 14-DIP（0.300"，7.62mm） |
| 供应商设备封装： | 14-PDIP |
| 包装： | 管件 |
4
LT1490/LT1491
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VOS
Input Offset Voltage
LT1490 N, S Package
250
1200
V
0
°C ≤ TA ≤ 70°C
q
1400
V
–40
°C ≤ TA ≤ 85°C
q
1500
V
LT1491 N Package
350
1250
V
0
°C ≤ TA ≤ 70°C
q
1500
V
–40
°C ≤ TA ≤ 85°C
q
1600
V
LT1490CMS8 Package, LT1491 S Package
400
1600
V
0
°C ≤ TA ≤ 70°C
q
1850
V
–40
°C ≤ TA ≤ 85°C
q
1950
V
VOS TC
Input Offset Voltage Drift
0
°C ≤ TA ≤ 70°C (Note 7)
q
36
V/°C
–40
°C ≤ TA ≤ 85°C (Note 7)
q
36
V/°C
IOS
Input Offset Current
q
0.2
0.8
nA
IB
Input Bias Current
q
48
nA
Input Noise Voltage
0.1Hz to 10Hz
1
VP-P
en
Input Noise Voltage Density
f = 1kHz
50
nV/
√Hz
in
Input Noise Current Density
f = 1kHz
0.03
pA/
√Hz
RIN
Input Resistance
Differential
6
17
M
Common Mode, VCM = – 15V to 14V
15000
M
CIN
Input Capacitance
4.6
pF
Input Voltage Range
q
–15
29
V
CMRR
Common Mode Rejection Ratio
VCM = – 15V to 29V
q
80
98
dB
AVOL
Large-Signal Voltage Gain
VO = ±14V, RL = 10k
100
250
V/mV
0
°C ≤ TA ≤ 70°C
q
75
V/mV
–40
°C ≤ TA ≤ 85°C
q
50
V/mV
VO
Output Voltage Swing
No Load
q
±14.9
±14.978
V
IOUT = ±5mA
q
±14.5
±14.750
V
IOUT = ±10mA
±14.5
±14.670
V
ISC
Short-Circuit Current (Note 2)
Short to GND
±20
±25
mA
0
°C ≤ TA ≤ 70°C
q
±15
mA
–40
°C ≤ TA ≤ 85°C
q
±10
mA
PSRR
Power Supply Rejection Ratio
VS = ±1.25V to ±22V
q
88
98
dB
IS
Supply Current per Amplifier
50
70
A
q
85
A
GBW
Gain Bandwidth Product
f = 1kHz
125
200
kHz
0
°C ≤ TA ≤ 70°C
q
110
kHz
–40
°C ≤ TA ≤ 85°C
q
100
kHz
SR
Slew Rate
AV = – 1, RL = ∞, VO = ±10V,
0.0375
0.07
V/
s
Measure at VO = ±5V
0
°C ≤ TA ≤ 70°C
q
0.0330
V/
s
–40
°C ≤ TA ≤ 85°C
q
0.0300
V/
s
Note 1: Absolute Maximum Ratings are those values beyond which the
life of the device may be impaired.
Note 2: A heat sink may be required to keep the junction temperature
below absolute maximum. This depends on the power supply voltage
and how many amplifiers are shorted.
Note 3: The LT1490C/LT1491C are guaranteed to meet specified
performance from 0
°C to 70°C. The LT1490C/LT1491C are designed,
characterized and expected to meet specified performance from – 40
°C
to 85
°C but are not tested or QA sampled at these temperatures.
The LT1490I/LT1491I are guaranteed to meet specified performance from
–40
°C to 85°C.
Note 4: VS = 5V limits are guaranteed by correlation to VS = 3V and
VS = ±15V tests.
Note 5: VS = 3V limits are guaranteed by correlation to VS = 5V and
VS = ±15V tests.
Note 6: Guaranteed by correlation to slew rate at VS = ±15V and GBW
at VS = 3V and VS = ±15V tests.
Note 7: This parameter is not 100% tested.
ELECTRICAL CHARACTERISTICS The q denotes specifications which apply over the full operating temperature
range, otherwise specifications are at TA = 25°C. VS = ±15V, VCM = 0V, VOUT = 0V, unless otherwise noted. (Note 3)
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