Datasheet

INA322
3
SBOS174B
ELECTRICAL CHARACTERISTICS: 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
= 25kΩ, 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 V
S
= +5V ±2 ±10 mV
Over Temperature V
OS
±11 mV
vs Temperature dV
OS
/dT ±7 µV/°C
vs Power Supply PSRR V
S
= +2.7V to +5.5V ±50 ±250 µV/V
Over Temperature
±260 µV/V
Long-Term Stability ±0.4 µV/month
Input Impedance 10
13
|| 3 Ω || pF
Input Common-Mode Range V
S
= 2.7V 0.35 1.5 V
V
S
= 5V 0.55 3.8 V
Common-Mode Rejection CMRR V
S
= 5V, V
CM
= 0.55V to 3.8V 60 73 dB
Over Temperature V
S
= 5V, V
CM
= 0.55V to 3.8V 60 dB
V
S
= 2.7V, V
CM
= 0.35V to 1.5V 73 dB
Crosstalk, Dual 110 dB
INPUT BIAS CURRENT
Bias Current I
B
±0.5 ±10 pA
Offset Current I
OS
±0.5 ±10 pA
NOISE, RTI e
n
R
S
= 0Ω
Voltage Noise: f = 10Hz 500 nV/√Hz
f = 100Hz 190 nV/√Hz
f = 1kHz 100 nV/√Hz
f = 0.1Hz to 10Hz 20 µVp-p
Current Noise: f = 1kHz 3fA/√Hz
GAIN
(1)
Gain Equation, Externally Set G > 5 G = 5 + 5(R2/R1)
Range of Gain 5 1000 V/V
Gain Error ±0.07 ±0.4 %
vs Temperature G = 5
±2 ±10 ppm/°C
Nonlinearity
G = 25, V
S
= 5V, V
O
= 0.05 to 4.95 ±0.001 ±0.010 % of FS
Over Temperature
±0.002 ±0.015 % of FS
OUTPUT
Output Voltage Swing from Rail
(2, 5)
G ≥ 10 50 25 mV
Over Temperature 50 mV
Capacitance Load Drive See Typical Characteristic
(3)
pF
Short-Circuit Current I
SC–
8
I
SC+
16 mA
FREQUENCY RESPONSE
Bandwidth, –3dB BW G = 5 500 kHz
Slew Rate SR V
S
= 5V, G = 25 0.4 V/µs
Settling Time, 0.1% t
S
G = 5, C
L
= 50pF, V
O
= 2V step 8 µs
0.01% 12 µs
Overload Recovery 50% Input Overload G = 25 2 µs
POWER SUPPLY
Specified Voltage Range +2.7 +5.5 V
Operating Voltage Range
+2.5 to +5.5 V
Quiescent Current per Channel I
Q
V
SD
> 2.5
(4)
40 60 µA
Over Temperature 70 µA
Shutdown Quiescent Current/Chan I
SD
V
SD
< 0.8
(4)
0.01 1 µA
TEMPERATURE RANGE
Specified Range –55 +125 °C
Operating/Storage Range –65 +150 °C
Thermal Resistance
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 characteristic
Percent Overshoot vs Load Capacitance . (4) See typical characteristic Shutdown Voltage vs Supply
Voltage
. (5) Output does not swing to positive rail if gain is less than 10.