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LMP8645 bảng dữ liệu(PDF) 3 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor. Click here to check the latest version.
tên linh kiện LMP8645
Giải thích chi tiết về linh kiện  Precision High Voltage Current Sense Amplifier
PDF  16 Pages
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nhà sản xuất  NSC [National Semiconductor (TI)]
Trang chủ  http://www.national.com
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LMP8645 bảng dữ liệu(HTML) 3 Page - National Semiconductor (TI)

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Symbol
Parameter
Condition
Min
(Note 6)
Typ
(Note 5)
Max
(Note 6)
Units
I
OUT
Output current (Note 9)
Sourcing, V
OUT= 600mV, Rg = 150kΩ
5
mA
Sinking, V
OUT= 600mV, Rg = 150kΩ
5
C
LOAD
Max Output Capacitance Load
(Note 9)
30
pF
5V Electrical Characteristics (Note 4)
Unless otherwise specified, all limits guaranteed for at T
A = 25°C, VS=V
+-V-, V+ = 5V, V− = 0V, −2V < V
CM < 76V, Rg= 25kΩ, RL =
10 M
Ω. Boldface limits apply at the temperature extremes.
Symbol
Parameter
Condition
Min
(Note 6)
Typ
(Note 5)
Max
(Note 6)
Units
V
OS
Input Offset Voltage
V
CM = 2.1V
-1
-1.7
1
1.7
mV
TCV
OS
Input Offset Voltage Drift(Note 7,
Note 9)
V
CM = 2.1V
7
μV/°C
I
B
Input Bias Current(Note 10)
V
CM = 2.1V
12.5
22
μA
e
ni
Input Voltage Noise (Note 9)
f > 10 kHz, R
G = 5 kΩ
120
nV/
V
SENSE(MAX)
Max Input Sense Voltage (Note 9) V
CM = 12V, RG = 5 kΩ
600
mV
Gain A
V
Adjustable Gain Setting (Note 9)
V
CM = 12V
1
100
V/V
Gm
Transconductance
V
CM = 2.1V
200
µA/V
Accuracy
V
CM = 2.1V
-2
-3.4
2
3.4
%
Gm drift (Note 9)
−40°C to 125°C, V
CM= 2.1V
140
ppm /°C
PSRR
Power Supply Rejection Ratio
V
CM = 2.1V, , 2.7V < V
+ < 12V
90
dB
CMRR
Common Mode Rejection Ratio
LMP8645HV 2.1V <V
CM < 76V
LMP8645 2.1V <V
CM< 42V
95
dB
-2V < V
CM < 2V
60
BW
−3 dB Bandwidth (Note 9)
R
G= 10 kΩ, CG = 4 pF VSENSE = 400 mV,
C
L = 30 pF, RL = 1MΩ
850
kHz
R
G= 25 kΩ, CG = 4 pF, VSENSE = 300 mV,
C
L = 30 pF, RL = 1MΩ
260
R
G= 50 kΩ, CG = 4 pF, VSENSE = 300mV,
C
L = 30 pF, RL = 1MΩ
140
SR
Slew Rate(Note 8, Note 9)
V
CM = 5V, CG = 4 pF, VSENSE from 100 mV
to 500 mV, C
L = 30 pF, RL= 1MΩ
0.5
V/µs
I
S
Supply Current
V
CM = 2.1V
450
610
780
uA
V
CM = −2V
2100
2800
3030
V
OUT
Maximum Output Voltage
V
CM =5V, Rg= 500 kΩ
3.3
V
Minimum Output Voltage
V
CM =2.1V
22
mV
I
OUT
Output current (Note 9)
Sourcing, V
OUT= 1.65V, Rg= 150kΩ
5
mA
Sinking, V
OUT= 1.65V, Rg= 150kΩ
5
C
LOAD
Max Output Capacitance Load
(Note 9)
30
pF
3
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