參數(shù)資料
型號： INA322
元件分類： 測量放大器
英文描述： Precision Instrumentation Amplifier
中文描述： 精密儀表放大器
文件頁數(shù)： 2/15頁
文件大?。?/td> 303K
代理商： INA322
INA322
SBOS174
2
SPECIFICATIONS: V
S
= +2.7V TO +5.5V
BOLDFACE
limits apply over the specified temperature range
, T
A
=
–
55
°
C TO 125
°
C
At T
A
= +25
°
C, R
L
= 25k
, G = 25, and I
A
common = V
S
/2, unless otherwise noted.
INA322EA
INA2322EA
PARAMETER
CONDITION
MIN
TYP
MAX
UNITS
INPUT
Input Offset Voltage, RTI
Over Temperature
vs Temperature
vs Power Supply
Over Temperature
Long-Term Stability
Input Impedance
Input Common-Mode Range
V
S
= +5V
±
2
±
10
±
11
mV
mV
μ
V/
°
C
μ
V/V
μ
V/V
μ
V/month
|| pF
V
V
dB
dB
dB
dB
V
OS
dV
/dT
PSRR
±
7
±
50
V
S
= +2.7V to +5.5V
±
250
±
260
±
0.4
10
13
|| 3
V
S
= 2.7V
V
S
= 5V
0.35
0.55
60
60
1.5
3.8
Common-Mode Rejection
Over Temperature
CMRR
V
S
= 5V, V
CM
= 0.55V to 3.8V
V
S
= 5V, V
CM
= 0.55V to 3.8V
V
S
= 2.7V, V
CM
= 0.35V to 1.5V
73
73
110
Crosstalk, Dual
INPUT BIAS CURRENT
Bias Current
Offset Current
I
B
I
OS
±
0.5
±
0.5
±
10
±
10
pA
pA
NOISE, RTI
Voltage Noise: f = 10Hz
f = 100Hz
f = 1kHz
f = 0.1Hz to 10Hz
Current Noise: f = 1kHz
e
n
R
S
= 0
500
190
100
20
3
nV/
√
Hz
nV/
√
Hz
nV/
√
Hz
μ
Vp-p
fA/
√
Hz
GAIN
(1)
Gain Equation, Externally Set
Range of Gain
Gain Error
vs Temperature
Nonlinearity
Over Temperature
G > 5
G = 5 + 5(R2/R1)
5
1000
±
0.4
±
10
±
0.010
±
0.015
V/V
%
±
0.07
±
2
±
0.001
±
0.002
G = 5
ppm/
°
C
% of FS
% of FS
G = 25, V
S
= 5V, V
O
= 0.05 to 4.95
OUTPUT
Output Voltage Swing from Rail
(2, 5)
G
≥
10
50
25
mV
Over Temperature
Capacitance Load Drive
Short-Circuit Current
50
mV
pF
See Typical Curve
(3)
8
16
I
SC
–
I
SC+
mA
FREQUENCY RESPONSE
Bandwidth,
–
3dB
BW
G = 5
500
kHz
Slew Rate
Settling Time, 0.1%
0.01%
Overload Recovery
SR
t
S
V
S
= 5V, G = 25
G = 5, C
L
= 50pF, V
O
= 2V step
0.4
8
12
2
V/
μ
s
μ
s
μ
s
μ
s
50% Input Overload G = 25
POWER SUPPLY
Specified Voltage Range
Operating Voltage Range
Quiescent Current per Channel
Over Temperature
Shutdown Quiescent Current/Chan
+2.7
+5.5
V
V
μ
A
μ
A
μ
A
+2.5 to +5.5
40
I
Q
V
SD
> 2.5
(4)
60
70
1
I
SD
V
SD
< 0.8
(4)
0.01
TEMPERATURE RANGE
Specified Range
Operating/Storage Range
Thermal Resistance
–
55
–
65
+125
+150
°
C
°
C
θ
JA
MSOP-8, TSSOP-14 Surface Mount
150
°
C/W
NOTES: (1) Does not include errors from external gain setting resistors (2) Output voltage swings are measured between the output and power-supply rails. Output
swings and rail only if G
≥
10. (3) See typical performance curve
“
Percent Overshoot vs Load Capacitance.
”
(4) See typical performance curve
“
Shutdown Voltage
vs Supply Voltage.
”
(5) Output does not swing to positive rail if gain is less than 10.
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