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INA326, INA327
SBOS222
3
www.ti.com
ELECTRICAL CHARACTERISTICS: V
S
= +2.7V TO +5.5V
BOLDFACE
limits apply over the specified temperature range
, T
A
=
–
40
°
C TO 85
°
C
At T
A
= +25
°
C, R
L
= 10k
, G = 100 (R
1
= 2k
, R
2
= 100k
), external gain set resistors, and IA
COMMON
= V
S
/2, with external 1kHz filters, unless otherwise noted.
INA326EA
PARAMETER
CONDITION
MIN
TYP
MAX
UNITS
INPUT
Offset Voltage, RTI
Over Temperature
vs Temperature
vs Power Supply
Long-Term Stability
Input Impedance, Differential
V
OS
V
S
= +5V, V
CM
= V
S
/2
±
30
±
125
±
185
±
1
μ
V
μ
V
dV
OS
/dT
PSR
±
0.15
±
4
μ
V/
°
C
μ
V/V
V
S
= +2.7V to +5.5V, V
CM
= V
S
/2
±
20
See Note (1)
10
10
|| 2
10
10
|| 14
|| pF
|| pF
V
V
dB
dB
Common-Mode
Input Voltage Range
Safe Input Voltage
Common-Mode Rejection
Over Temperature
–
0.02
–
0.5
100
94
(V+) + 0.02
(V+) + 0.5
CMR
V
S
= 5V, V
CM
=
–
0.02V to (V+) + 0.02V
110
INPUT BIAS CURRENT
Bias Current
vs Temperature
Offset Current
V
CM
= V
S
/2
S
= 5V
I
B
±
0.2
±
2
nA
See Typical Characteristics
±
0.2
I
OS
V
S
= 5V
±
2
nA
NOISE
Voltage Noise, RTI
f = 10Hz
f = 100Hz
f = 1kHz
f = 0.01Hz to 10Hz
Voltage Noise, RTI
f = 10Hz
f = 100Hz
f = 1kHz
f = 0.01Hz to 10Hz
Current Noise, RTI
f = 1kHz
f = 0.1Hz to 10Hz
Output Ripple, V
O
Filtered
(2)
R
S
= 0
, G = 100, R
1
= 2k
, R
2
= 100k
44
44
44
1
nV/
√
Hz
nV/
√
Hz
nV/
√
Hz
μ
Vp-p
R
S
= 0
, G = 10, R
1
= 20k
, R
2
= 100k
120
97
97
4
nV/
√
Hz
nV/
√
Hz
nV/
√
Hz
μ
Vp-p
0.15
4.2
pA/
√
Hz
pAp-p
See Applications Information
GAIN
Gain Equation
Range of Gain
Gain Error
(3)
vs Temperature
Nonlinearity
G = 2(R
2
/R
1
)
< 0.1
> 10000
±
0.5
±
60
±
0.024
V/V
%
G = 10, 100, V
S
= 5V, V
O
= 0.075V to 4.925V
G = 10, 100, V
S
= 5V, V
O
= 0.075V to 4.925V
G = 10, 100, V
S
= 5V, V
O
= 0.075V to 4.925V
±
0.25
±
10
±
0.01
ppm/
°
C
% of FS
OUTPUT
Voltage Output Swing from Rail
R
= 100k
R
L
= 10k
, V
S
= 5V
5
mV
mV
mV
pF
mA
75
75
10
Over Temperature
Capacitive Load Drive
Short-Circuit Current
500
±
25
I
SC
INTERNAL OSCILLATOR
Frequency of Auto-Correction
Accuracy
90
±
20
kHz
%
FREQUENCY RESPONSE
Bandwidth
(4)
,
–
3dB
Slew Rate
(4)
Settling Time
(4)
, 0.1%
0.01%
0.1%
0.01%
Overload Recovery
(4)
BW
SR
G = 1 to 1k
1
kHz
V
= 5V, All Gains, C
= 100pF
t
S
1kHz Filter, G = 1 to 1k, V
O
= 2V step, C
L
= 100pF
Filter Limited
0.95
1.3
130
160
30
5
ms
ms
μ
s
μ
s
μ
s
μ
s
10kHz Filter, G = 1 to 1k, V
O
= 2V step, C
L
= 100pF
1kHz Filter,
50% Output Overload, G = 1 to 1k
10kHz Filter,
50% Output Overload, G = 1 to 1k
POWER SUPPLY
Specified Voltage Range
Quiescent Current
Over Temperature
+2.7
+5.5
3.4
3.7
V
I
Q
I
O
= 0, Diff V
IN
= 0V, V
S
= 5V
2.4
mA
mA
TEMPERATURE RANGE
Specified Range
Operating Range
Storage Range
Thermal Resistance
–
40
–
40
–
65
+85
+125
+150
°
C
°
C
°
C
θ
JA
MSOP-8 Surface Mount
150
°
C/W
NOTES: (1) 1000-hour life test at 150
°
C demonstrated randomly distributed variation in the range of measurement limits
—
approximately 10
μ
V. (2) See Applications
Information section, Figures 1 and 2. (3) Does not include error and TCR of external gain-setting resistors. (4) Dynamic response is limited by filtering. Higher
bandwidths can be achieved by adjusting the filter.