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LMP8645 Arkusz danych(PDF) 3 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor. Click here to check the latest version.
Numer części LMP8645
Szczegółowy opis  Precision High Voltage Current Sense Amplifier
PDF  16 Pages
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Producent  NSC [National Semiconductor (TI)]
Strona internetowa  http://www.national.com
Logo NSC - National Semiconductor (TI)

LMP8645 Arkusz danych(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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