INA129UA Datasheet, PDF (3/20 Pages) Texas Instruments – Precision, Low Power INSTRUMENTATION AMPLIFIERS

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INA128
INA129
SBOS051B − OCTOBER 1995 − REVISED FEBRUARY 2005
ELECTRICAL CHARACTERISTICS
At T_A = +25°C, V_S = ±15V, R_L = 10kΩ, unless otherwise noted.
INA128P, U
INA129P. U
PARAMETER
CONDITIONS
MIN
TYP
MAX
INPUT
Offset Voltage, RTI
Initial
vs Temperature
vs Power Supply
Long-Term Stability
Impedance, Differential
Common-Mode
Common-Mode Voltage Range⁽¹⁾
Safe Input Voltage
Common-Mode Rejection
T_A = +25°C
T_A = TMIN to TMAX
V_S = ±2.25V to ±18V
V_O = 0V
(V+) − 2
(V−) + 2
V_CM = ±13V, ∆R_S = 1kΩ
G=1
80
±10±100/G
±0.2±2/G
±0.2±20/G
±0.1±3/G
10¹⁰ || 2
10¹¹ || 9
(V+) − 1.4
(V−) + 1.7
±50±500/G
±0.5±20/G
±1±100/G
±40
86
G = 10
100
106
G = 100
120
125
BIAS CURRENT
vs Temperature
Offset Current
G = 1000
120
130
±2
±5
±30
±1
±5
vs Temperature
±30
NOISE VOLTAGE, RTI
G = 1000, R_S = 0Ω
f = 10Hz
10
f = 100Hz
8
f = 1kHz
8
f_B = 0.1Hz to 10Hz
0.2
Noise Current
f = 10Hz
0.9
f = 1kHz
0.3
f_B = 0.1Hz to 10Hz
GAIN
Gain Equation, INA128
Gain Equation, INA129
Range of Gain
Gain Error
G=1
30
1 + (50kΩ/R_G)
1 + (49.4kΩ/R_G)
1
10000
±0.01
±0.024
G = 10
±0.02
±0.4
Gain vs Temperature⁽²⁾
50kΩ (or 49.4kΩ) Resistance⁽²⁾⁽³⁾
Nonlinearity
G = 100
G = 1000
G=1
V_O = ±13.6V, G = 1
G = 10
G = 100
G = 1000
±0.05
±0.5
±1
±25
±0.0001
±0.0003
±0.0005
±0.001
±0.5
±1
±10
±100
±0.001
±0.002
±0.002
(4)
NOTE: ∗ Specification is same as INA128P, U or INA129P, U.
(1) _{Input common-mode range varies with output voltage — see typical curves.}
(2) _{Specified by wafer test.}
(3) _{Temperature coefficient of the 50kΩ (or 49.4kΩ) term in the gain equation.}
(4) _{Nonlinearity measurements in G = 1000 are dominated by noise. Typical nonlinearity is ±0.001%.}
INA128PA, UA
INA129PA, UA
MIN
TYP
MAX
UNIT
±25±100/G ±125±1000/G
µV
±0.2±5/G ±1±20/G
µV/°C
∗
±2±200/G
µV/V
∗
µV/mo
∗
Ω || pF
∗
Ω || pF
∗
∗
V
∗
∗
V
∗
V
73
∗
93
∗
110
∗
110
∗
∗
∗
∗
∗
dB
dB
dB
dB
±10
nA
pA/°C
±10
nA
pA/°C
∗
nV/√Hz
∗
nV/√Hz
∗
nV/√Hz
∗
µVPP
∗
pA/√Hz
∗
pA/√Hz
∗
pAPP
∗
V/V
∗
V/V
∗
∗
V/V
∗
±0.1
%
∗
±0.5
%
∗
±0.7
%
∗
±2
%
∗
∗
ppm/°C
∗
∗
ppm/°C
∗
±0.002
% of FSR
∗
±0.004
% of FSR
∗
±0.004
% of FSR
∗
∗
% of FSR
3