Datasheet
3
®
INA155
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
= 10kΩ connected to V
S
/2. R
G
pins open (G = 10), and Ref = V
S
/2, unless otherwise noted.
INA155E, U INA155EA, UA
PARAMETER CONDITION MIN TYP MAX MIN TYP MAX UNITS
INPUT
Offset Voltage, RTI V
OS
V
S
= +5.0V, V
CM
= V
S
/2 ±0.2 ±1 ✽✽mV
Over Temperature
±
2 ✽ mV
Drift dV
OS
/d
T
±
5 ✽ µV/°C
vs Power Supply PSRR V
S
= +2.7V to +6V, V
CM
= 0.2 • V
S
±50 ±200 ✽✽µV/V
Over Temperature
±
250 ✽ µV/V
vs Time ±0.4 ✽ µV/mo
INPUT VOLTAGE RANGE
Safe Input Voltage (V–) – 0.5 (V+) + 0.5 ✽✽V
Common-Mode Range
(1)
V
CM
V
S
= 5.5V 0.3 5.2
(2)
✽✽V
V
S
= 2.7V 0.2 2.5
(2)
✽✽V
Common-Mode Rejection Ratio CMRR V
S
= 5.5V, 0.6V < V
CM
< 3.7V, G = 10 92 100 80 ✽ dB
Over Temperature 82 78 dB
V
S
= 5.5V, 0.6V < V
CM
< 3.7V, G = 50
86 90 77 ✽ dB
Over Temperature 84 76 dB
INPUT IMPEDANCE
Differential 10
13
|| 3 ✽ Ω || pF
Common-Mode 10
13
|| 3 ✽ Ω || pF
INPUT BIAS CURRENT
Input Bias Current I
B
±1 ±10 ✽✽pA
Offset Current I
OS
±1 ±10 ✽✽pA
NOISE, RTI R
S
= 0Ω, G = 10 or 50
Voltage Noise: f = 0.1Hz to 10Hz 4.5 ✽ µV/Vp-p
Voltage Noise Density: f = 10Hz 260 ✽ nV/√Hz
f = 100Hz 99 ✽ nV/√Hz
f = 1kHz 40 ✽ nV/√Hz
Current Noise: f = 1kHz 2 ✽ fA/√Hz
GAIN 10 50 ✽✽V/V
Gain Equation G = 10 + 400kΩ/(10kΩ + R
G
) ✽ V/V
Gain Error
(3)
V
S
= 5.5V, V
O
= 0.01V to 5.49V, G = 10
±0.02 ±0.1 ✽✽ %
vs Temperature
±
2
±
10 ✽✽ppm/°C
V
S
= 5.5V, V
O
= 0.05V to 5.45V, G = 50 ±0.05 ±0.25
✽✽ %
vs Temperature
±
15
±
30 ✽✽ppm/°C
Nonlinearity
V
S
= 5.5V, G = 10 or 50 ±0.005 ±
0.015 ✽✽% of FSR
Over Temperature
±
0.015 ✽ % of FSR
OUTPUT
Voltage Output Swing from Rail R
L
= 10kΩ, G
ERR
< 0.1% 5 10 ✽✽mV
Over Temperature 10 ✽ mV
Short-Circuit Current Short Circuit to Ground ±50 ✽ mA
Capacitance Load (stable operation) See Typical Curve ✽
FREQUENCY RESPONSE
Bandwidth, –3dB BW G = 10 550 ✽ kHz
G = 50 110 ✽ kHz
Slew Rate SR V
S
= 5.5V, C
L
= 100pF 6.5 ✽ V/µs
Settling Time: 0.1% t
S
V
S
= 5.5V, V
O
= 2V Step, C
L
= 100pF, G = 10
5 ✽ µs
V
S
= 5.5V, V
O
= 2V Step, C
L
= 100pF, G = 50
11 ✽ µs
0.01%
V
S
= 5.5V, V
O
= 2V Step, C
L
= 100pF, G = 10
8 ✽ µs
V
S
= 5.5V, V
O
= 2V Step, C
L
= 100pF, G = 50
15 ✽ µs
Overload Recovery 50% Input Overload 0.2 ✽ µs
Total Harmonic Distortion + Noise THD+N See Typical Curve ✽
POWER SUPPLY
Specified Voltage Range +2.7 +5.5 ✽✽V
Operating Voltage Range
+2.5 to +6
✽ V
Quiescent Current V
IN
= 0, I
O
= 0 1.7 2.1 ✽✽mA
Over Temperature V
IN
= 0, I
O
= 0 2.8 ✽ mA
TEMPERATURE RANGE
Specified Range –55 +125 ✽✽°C
Operating Range –65 +150 ✽✽°C
Storage Range –65 +150 ✽✽°C
Thermal Resistance
θ
JA
MSOP-8 Surface Mount 150 ✽ °C/W
SO-8 Surface Mount 150 ✽ °C/W
✽ Same as INA155E, U.
NOTES: (1) For further information, refer to typical performance curves on common-mode input range. (2) Operation above (V+) – 1.8V (max) results in reduced common-mode
rejection. See discussion and Figure 6 in the text of this data sheet. (3) Does not include error and TCR of additional optional gain-setting resistor in series with R
G
, if used.