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| 型号： | INA333AIDGKRG4 |
| 厂商： | Texas Instruments |
| 文件页数： | 6/27页 |
| 文件大小： | 0K |
| 描述： | IC INST AMP PREC LOW PWR 8-MSOP |
| 视频文件： | INA333 Zero-Drift Instrumentation Amp |
| 标准包装： | 2,500 |
| 放大器类型： | 仪表 |
| 电路数： | 1 |
| 输出类型： | 满摆幅 |
| 转换速率： | 0.16 V/µs |
| -3db带宽： | 150kHz |
| 电流 - 输入偏压： | 70pA |
| 电压 - 输入偏移： | 10µV |
| 电流 - 电源： | 50µA |
| 电流 - 输出 / 通道： | 40mA |
| 电压 - 电源，单路/双路(±)： | 1.8 V ~ 5.5 V，±0.9 V ~ 2.75 V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-TSSOP，8-MSOP（0.118"，3.00mm 宽） |
| 供应商设备封装： | 8-MSOP |
| 包装： | 带卷 (TR) |
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GENERAL LAYOUT GUIDELINES
300W
+3V
150W
R
(1)
1
2V
V
- D
2V+ V
D
3V
R
G
INA333
V
O
Ref
1.5V
INPUT PROTECTION
APPLICATION IDEAS
INA333
R /2
G
V
O
LA
RL
RA
10kW
Ref
G=10
2.8kW
1/2
OPA2333
390kW
1/2
OPA2333
SBOS445B – JULY 2008 – REVISED OCTOBER 2008 ..................................................................................................................................................... www.ti.com
Attention
to
good
layout
practices
is
always
recommended.
Keep
traces
short
and,
when
possible, use a printed circuit board (PCB) ground
plane with surface-mount components placed as
close to the device pins as possible. Place a 0.1
F
bypass capacitor closely across the supply pins.
These guidelines should be applied throughout the
analog circuit to improve performance and provide
benefits
such
as
reducing
the
electromagnetic-interference (EMI) susceptibility.
(1) R1 creates proper common-mode voltage, only for low-voltage
Instrumentation amplifiers vary in the susceptibility to
operation—see the Single-Supply Operation section.
radio-frequency interference (RFI). RFI can generally
be identified as a variation in offset voltage or dc
Figure 35. Single-Supply Bridge Amplifier
signal levels with changes in the interfering RF signal.
The INA333 has been specifically designed to
minimize
susceptibility
to
RFI
by
incorporating
passive RC filters with an 8MHz corner frequency at
The input terminals of the INA333 are protected with
the VIN+ and VIN– inputs. As a result, the INA333
internal diodes connected to the power-supply rails.
demonstrates remarkably low sensitivity compared to
These diodes clamp the applied signal to prevent it
previous generation devices. Strong RF fields may
from damaging the input circuitry. If the input signal
continue to cause varying offset levels, however, and
voltage can exceed the power supplies by more than
may require additional shielding.
0.3V, the input signal current should be limited to less
than 10mA to protect the internal clamp diodes. This
current limiting can generally be done with a series
input resistor. Some signal sources are inherently
Additional application ideas are shown in Figure 36 to
current-limited and do not require limiting resistors.
Figure 36. ECG Amplifier With Right-Leg Drive
14
Copyright 2008, Texas Instruments Incorporated
Product Folder Link(s): INA333
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相关代理商/技术参数 |
参数描述 |
|---|---|
| INA333AIDGKT | 功能描述:仪表放大器 Lo Pwr Prec Inst Amp RoHS:否 制造商:Texas Instruments 通道数量: 输入补偿电压:150 V 可用增益调整: 最大输入电阻:10 kOhms 共模抑制比（最小值）:88 dB 工作电源电压:2.7 V to 36 V 电源电流:200 uA 最大工作温度:+ 125 C 最小工作温度:- 40 C 封装 / 箱体:MSOP-8 封装:Bulk |
| INA333AIDGKTG4 | 功能描述:仪表放大器 Low Pwr Instr Amp RoHS:否 制造商:Texas Instruments 通道数量: 输入补偿电压:150 V 可用增益调整: 最大输入电阻:10 kOhms 共模抑制比（最小值）:88 dB 工作电源电压:2.7 V to 36 V 电源电流:200 uA 最大工作温度:+ 125 C 最小工作温度:- 40 C 封装 / 箱体:MSOP-8 封装:Bulk |
| INA333AIDRGR | 功能描述:仪表放大器 Lo Pwr Prec Instr Amp RoHS:否 制造商:Texas Instruments 通道数量: 输入补偿电压:150 V 可用增益调整: 最大输入电阻:10 kOhms 共模抑制比（最小值）:88 dB 工作电源电压:2.7 V to 36 V 电源电流:200 uA 最大工作温度:+ 125 C 最小工作温度:- 40 C 封装 / 箱体:MSOP-8 封装:Bulk |
| INA333AIDRGT | 功能描述:仪表放大器 Lo Pwr Prec Instr Amp RoHS:否 制造商:Texas Instruments 通道数量: 输入补偿电压:150 V 可用增益调整: 最大输入电阻:10 kOhms 共模抑制比（最小值）:88 dB 工作电源电压:2.7 V to 36 V 电源电流:200 uA 最大工作温度:+ 125 C 最小工作温度:- 40 C 封装 / 箱体:MSOP-8 封装:Bulk |
| INA333-HT | 制造商:TI 制造商全称:Texas Instruments 功能描述:Micro-Power, Zer?-Drift, Rail-to-Rail Out Instrumentation Amplifier |
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