參數(shù)資料
型號： INA270AIDRG4
英文描述： Voltage Output, Unidirectional Measurement Current-Shunt Monitor
中文描述： 電壓輸出，單向測量電流并聯(lián)監(jiān)視器
文件頁數(shù)： 3/17頁
文件大?。?/td> 360K
代理商： INA270AIDRG4
www.ti.com
ELECTRICAL CHARACTERISTICS
Boldface
limits apply over the specified temperature range:
T
= –40
°
C to +125
°
C.
At T
A
= +25
°
C, V
S
= +5V, V
CM
= +12V, V
SENSE
= 100mV, and PRE OUT connected to BUF IN, unless otherwise noted.
INA270
INA271
SBOS381A–FEBRUARY 2007–REVISED APRIL 2007
INA270, INA271
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNIT
INPUT
Full-Scale Input Voltage
V
SENSE
V
CM
CMRR
V
SENSE
= (V
IN+
) + (V
IN–
)
0.15
(V
S
– 0.2)/Gain
+80
V
Common-Mode Input Range
–16
V
Common-Mode Rejection Ratio
V
IN+
= –16V to +80V
V
IN+
= +12V to +80V
80
120
dB
Over Temperature
100
120
±
0.5
dB
Offset Voltage, RTI
(1)
V
OS
2.5
mV
Over Temperature
±
3
mV
μ
V/
°
C
μ
V/V
μ
A
k
nA
vs Temperature
dV
OS
/dT
PSR
2.5
20
vs Power-Supply
V
S
= +2.7V to +18V, V
CM
= +18V
5
±
8
96
100
±
16
Input Bias Current, V
IN–
Pin
PRE OUT Output Impedance
(2)
I
B
Buffer Input Bias Current
–50
Buffer Input Bias Current Temperature
Coefficient
±
0.03
nA/
°
C
OUTPUT (V
SENSE
≥
20mV)
(3)
Gain: INA270 Total Gain
G
14
V/V
Gain: INA271 Total Gain
G
20
V/V
Output Buffer Gain
G
BUF
2
V/V
Total Gain Error
V
SENSE
= 20mV to 100mV
±
0.2
±
1
±
2
%
Over Temperature
%
vs Temperature
50
±
2.2
±
3.0
ppm/
°
C
%
Total Output Error
(4)
V
SENSE
= 20mV to 100mV
±
0.75
±
1.0
±
0.002
1.5
Total Output Error
%
Nonlinearity Error
V
SENSE
= 20mV to 100mV
%
Output Impedance, Pin 5
R
O
nF
Maximum Capacitive Load
No Sustained Oscillation
10
VOLTAGE OUTPUT
(5)
R
L
= 10k
to GND
Swing to V+ Power-Supply Rail
(V+) – 0.05
(V+) – 0.2
V
Swing to GND
(6)
V
GND
+ 0.003
V
GND
+ 0.05
V
FREQUENCY RESPONSE
Bandwidth
BW
C
LOAD
= 5pF
C
LOAD
< 10nF
130
kHz
Phase Margin
40
degrees
Slew Rate
SR
1
V/
μ
s
μ
s
Settling Time (1%)
t
S
V
SENSE
= 10mV to 100mV
PP
,
C
LOAD
= 5pF
2
(1)
(2)
(3)
RTI means
Referred-to-Input
.
Initial resistor variation is
±
30% with an additional –2200ppm/
°
C temperature coefficient.
For output behavior when V
SENSE
< 20mV, see the Application Information section
Accuracy Variations
as A Result of V
SENSE
and
Common-Mode Voltage
.
Total output error includes effects of gain error and V
.
See typical characteristic curve
Output Swing vs Output Current
and Application Information section
Accuracy Variations
as A Result of
V
and Common-Mode Voltage
.
Ensured by design; not production tested.
(4)
(5)
(6)
3
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