Datasheet

INA331, INA2331
SBOS215C
3
www.ti.com
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
= 10kΩ, G = 25, and V
REF
= V
S
/2, unless otherwise noted.
INA331AIDGK
INA331IDGK INA2331AIPW
PARAMETER CONDITION MIN TYP MAX MIN TYP MAX UNITS
INPUT
Input Offset Voltage, RTI V
S
= +5V ±250 ±500 ✻ ±1000 µV
Over Temperature V
OS
±1.7 ±2.1 mV
Temperature Coefficient dV
OS
/dT ±5 ✱ µV/°C
vs Power Supply PSRR V
S
= +2.7V to +5.5V ±50 ±200 ✻✻µV/V
vs Temperature
±220 ✱ 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 90 94 80 ✻ dB
–40°C to +85°CV
S
= 5V, V
CM
= 0.55V to 3.8V 77 75 dB
Over Temperature V
S
= 5V, V
CM
= 0.55V to 3.8V 72 70 dB
V
S
= 2.7V, V
CM
= 0.35V to 1.5V 94 ✻ dB
Crosstalk, Dual 114 dB
INPUT BIAS CURRENT V
CM
= V
S
/2
Bias Current I
B
±0.5 ±10 ✻✻pA
Offset Current I
OS
±0.5 ±10 ✻✻pA
NOISE, RTI R
S
= 0Ω
Voltage Noise: f = 10Hz e
N
280 ✻ nV/√Hz
f = 100Hz 96 ✻ nV/√Hz
f = 1kHz 46 ✻ nV/√Hz
f = 0.1Hz to 10Hz 7 ✻ µV
PP
Current Noise: f = 1kHz i
N
0.5 ✻ fA/√Hz
GAIN
(1)
Gain Equation, Externally Set G > 5 G = 5 + (5R
2
/R
1
) ✻
Range of Gain 5 1000 ✻✻V/V
Gain Error G = 5 ±0.02 ±0.1 ✻✻ %
vs Temperature G = 5
±2 ±10 ✱✱ppm/°C
Nonlinearity
G = 25
(2)
, 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
(3)
R
L
= 10kΩ 50 25 ✻✻ mV
Over Temperature G > 10 50 ✱ mV
Capacitance Load Drive See Typical Characteristics ✻ pF
Short-Circuit Current +48/–32 ✻ mA
FREQUENCY RESPONSE
Bandwidth, –3dB BW G = 25 2.0 ✻ MHz
Slew Rate SR V
S
= 5V, G = 25 5 ✻ V/µs
Settling Time, 0.1% t
S
G = 25, C
L
= 100pF, V
O
= 2V step 1.7 ✻ µs
0.01% 2.5 ✻ 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
(3)
415 490 ✻✻µA
Over Temperature 600 ✱
µA
Shutdown Quiescent Current/Chan I
SD
V
SD
< 0.8
(3)
0.01 1 ✻✻µA
TEMPERATURE RANGE
Specified/Operating Range –55 +125 ✻✻°C
Storage Range –65 +150 ✻✻°C
Thermal Resistance
θ
JA
MSOP-8, TSSOP-14 Surface Mount 150 ✻ °C/W
✻ Specifications same as INA331IDGK
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 to rail only if G ≥ 10. Output does not swing to positive
rail if gain is less than 10.
(3) See typical characteristic
Percent Overshoot vs Load Capacitance .
(4) See typical characteristic
Shutdown Voltage vs Supply Voltage .