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参数资料
型号： INA270AIDR
英文描述： Voltage Output, Unidirectional Measurement Current-Shunt Monitor
中文描述： 电压输出，单向测量电流并联监视器
文件页数： 3/13页
文件大小： 299K
代理商： INA270AIDR
"#$
"#%
SBOS381 FEBRUARY 2007
www.ti.com
3
ELECTRICAL CHARACTERISTICS
Boldface
limits apply over the specified temperature range:
T
A
= 40
°
C to +125
°
C.
At T
A
= +25
°
C, V
S
= +5V, VCM = +12V, V
SENSE
= 100mV, and PRE OUT connected to BUF IN, unless otherwise noted.
INA270, INA271
TYP
PARAMETER
INPUT
CONDITIONS
MIN
MAX
UNITS
Full-Scale Input Voltage
Common-Mode Input Range
Common-Mode Rejection
Over Temperature
Offset Voltage, RTI(1)
Over Temperature
vs Temperature
vs Power-Supply
Input Bias Current, V
IN
Pin
PRE OUT Output Impedance
(3)
Buffer Input Bias Current
Buffer Input Bias Current Temperature Coefficient
OUTPUT (VSENSE
20mV)(2)
Gain:
INA270 Total Gain
INA271 Total Gain
Output Buffer Gain
Total Gain Error
Over Temperature
vs Temperature
Total Output Error
(4)
Total Output Error
Nonlinearity Error
Output Impedance, Pin 5
Maximum Capacitive Load
VOLTAGE OUTPUT
(5)
Swing to V+ Power-Supply Rail
Swing to GND
(6)
V
SENSE
V
CM
CMRR
V
SENSE
= (V
IN+
) + (V
IN
)
0.15
(V
S
0.2)/Gain
+80
V
V
dB
dB
mV
mV
μ
V/
°
C
μ
V/V
μ
A
k
nA
nA/
°
C
16
80
100
V
IN+
= 16V to +80V
V
IN+
= +12V to +80V
120
120
±
0.5
V
OS
2.5
±
3
20
100
±
16
dV
OS
/dT
PSR
2.5
5
±
8
96
50
±
0.03
V
S
= +2.7V to +18V, VCM = +18V
I
B
G
G
14
20
2
±
0.2
V/V
V/V
V/V
%
%
G
BUF
V
SENSE
= 20mV to 100mV
±
1
±
2
50
±
2.2
±
3.0
ppm/
°
C
%
%
%
nF
V
SENSE
= 20mV to 100mV
±
0.75
±
1.0
±
0.002
1.5
10
V
SENSE
= 20mV to 100mV
R
O
No Sustained Oscillation
R
L
= 10k
to GND
(V+) 0.05
V
GND
+ 0.003
(V+) 0.2
V
GND
+ 0.05
V
V
FREQUENCY RESPONSE
Bandwidth
Phase Margin
Slew Rate
Settling Time (1%)
NOISE, RTI(1)
Voltage Noise Density
BW
C
LOAD
= 5pF
C
LOAD
< 10nF
130
40
1
2
kHz
degrees
V/
μ
s
μ
s
SR
t
S
V
SENSE
= 10mV to 100mV
PP
, C
LOAD
= 5pF
e
n
40
nV/
√
Hz
POWER SUPPLY
Operating Range
Quiescent Current
Over Temperature
V
S
I
Q
+2.7
+18
900
950
V
μ
A
μ
A
V
OUT
= 2V
V
SENSE
= 0mV
700
350
TEMPERATURE RANGE
Specified Temperature Range
Operating Temperature Range
Thermal Resistance
SO-8
40
55
+125
+150
°
C
°
C
JA
150
°
C/W
(1)RTI means
Referred-to-Input
.
(2)For output behavior when VSENSE < 20mV, see the section,
Accuracy Variations as a Result of VSENSE and Common-Mode Voltage
in the Applications
Information.
(3)Initial resistor variation is
±
30% with an additional 2200ppm/
°
C temperature coefficient.
(4)Total output error includes effects of gain error and V
OS
.
(5)See typical characteristic curve
Output Swing vs Output Current
, and Applications Information section
Accuracy Variations as a Result of V
SENSE
and
Common-Mode Voltage
.
(6)Ensured by design; not production tested.
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相关代理商/技术参数
参数描述
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