Datasheet 搜索 > 仪表放大器 > TI（德州仪器） > INA121P 数据手册 > INA121P 数据手册 2/16 页
器件3D模型￥ 57.497
INA121P 数据手册 - TI（德州仪器）
制造商:
TI（德州仪器）
分类:
仪表放大器
封装:
PDIP-8
描述:
Texas Instruments### 仪器放大器，Texas Instruments仪器放大器是复合差分放大器块，通常包含经典的三个操作放大器配置。 它们提供高输出阻抗、极高的共模抑制，且可通过内部或外部电阻器准确设置差分增益。 差分放大器提供低直流偏移且偏移耦合了高开路增益和低噪音，通常用于高精确测试和测量应用，及电气嘈杂环境。
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INA121P数据手册
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2
®
INA118
INPUT
Offset Voltage, RTI
Initial T
A
= +25°C ±10 ± 50/G ±50 ± 500/G ±25 ±100/G ±125±1000/G µV
vs Temperature T
A
= T
MIN
to T
MAX
±0.2 ± 2/G ±0.5 ± 20/G ±0.2 ± 5/G ±1 ± 20/G µV/°C
vs Power Supply V
S
= ±1.35V to ±18V ±1 ±10/G ±5 ± 100/G ✻ ±10 ±100/G µV/V
Long-Term Stability ±0.4 ±5/G ✻ µV/mo
Impedance, Differential 10
10
|| 1 ✻ Ω || pF
Common-Mode 10
10
|| 4 ✻ Ω || pF
Linear Input Voltage Range (V+) – 1 (V+) – 0.65 ✻✻ V
(V–) + 1.1 (V–)
+ 0.95 ✻✻ V
Safe Input Voltage ±40 ✻ V
Common-Mode Rejection V
CM
= ±10V, ∆R
S
= 1kΩ
G = 1 80 90 73 ✻ dB
G = 10 97 110 89 ✻ dB
G = 100 107 120 98 ✻ dB
G = 1000 110 125 100 ✻ dB
BIAS CURRENT ±1 ±5 ✻ ±10 nA
vs Temperature ±40 ✻ pA/°C
OFFSET CURRENT ±1 ±5 ✻ ±10 nA
vs Temperature ±40 ✻ pA/°C
NOISE VOLTAGE, RTI G = 1000, R
S
= 0Ω
f = 10Hz 11 ✻ nV/√Hz
f = 100Hz 10 ✻ nV/√Hz
f = 1kHz 10 ✻ nV/√Hz
f
B
= 0.1Hz to 10Hz 0.28 ✻ µVp-p
Noise Current
f=10Hz 2.0 ✻ pA/√Hz
f=1kHz 0.3 ✻ pA/√Hz
f
B
= 0.1Hz to 10Hz 80 ✻ pAp-p
GAIN
Gain Equation 1 + (50kΩ/R
G
) ✻ V/V
Range of Gain 1 10000 ✻✻V/V
Gain Error G = 1 ±0.01 ±0.024 ✻ ±0.1 %
G = 10 ±0.02 ±0.4 ✻ ±0.5 %
G = 100 ±0.05 ±0.5 ✻ ±0.7 %
G = 1000 ±0.5 ±1 ✻ ±2%
Gain vs Temperature G = 1 ±1 ±10 ✻ ±10 ppm/°C
50kΩ Resistance
(1)
±25 ±100 ✻✻ppm/°C
Nonlinearity G = 1 ±0.0003 ±0.001 ✻ ±0.002 % of FSR
G = 10 ±0.0005 ±0.002 ✻ ±0.004 % of FSR
G = 100 ±0.0005 ±0.002 ✻ ±0.004 % of FSR
G = 1000 ±0.002 ±0.01 ✻ ±0.02 % of FSR
OUTPUT
Voltage: Positive R
L
= 10kΩ (V+) – 1 (V+) – 0.8 ✻✻ V
Negative R
L
= 10kΩ (V–) + 0.35 (V–) + 0.2 ✻✻ V
Single Supply High
V
S
= +2.7V/0V
(2)
, R
L
= 10kΩ
1.8 2.0 ✻✻ V
Single Supply Low
V
S
= +2.7V/0V
(2)
, R
L
= 10kΩ
60 35 ✻✻ mV
Load Capacitance Stability 1000 ✻ pF
Short Circuit Current +5/–12 ✻ mA
FREQUENCY RESPONSE
Bandwidth, –3dB G = 1 800 ✻ kHz
G = 10 500 ✻ kHz
G = 100 70 ✻ kHz
G = 1000 7 ✻ kHz
Slew Rate V
O
= ±10V, G = 10 0.9 ✻ V/µs
Settling Time, 0.01% G = 1 15 ✻ µs
G = 10 15 ✻ µs
G = 100 21 ✻ µs
G = 1000 210 ✻ µs
Overload Recovery 50% Overdrive 20 ✻ µs
POWER SUPPLY
Voltage Range ±1.35 ±15 ±18 ✻✻ ✻V
Current V
IN
= 0V ±350 ±385 ✻✻µA
TEMPERATURE RANGE
Specification –40 85 ✻✻°C
Operating –40 125 ✻✻°C
θ
JA
80 ✻ °C/W
INA118PB, UB INA118P, U
PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS
SPECIFICATIONS
ELECTRICAL
At T
A
= +25°C, V
S
= ±15V, R
L
= 10kΩ unless otherwise noted.
✻ Specification same as INA118PB, UB.
NOTE: (1) Temperature coefficient of the “50kΩ” term in the gain equation. (2) Common-mode input voltage range is limited. See text for discussion of low power supply
and single power supply operation.
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