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參數(shù)資料
| 型號： | INA333AIDGKT |
| 廠商： | Texas Instruments |
| 文件頁數(shù)： | 3/27頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC OPAMP INSTR R-R 150KHZ 8MSOP |
| 產(chǎn)品培訓模塊： | Industrial Automation Overview |
| 視頻文件： | INA333 Zero-Drift Instrumentation Amp |
| 標準包裝： | 1 |
| 放大器類型： | 儀表 |
| 電路數(shù)： | 1 |
| 輸出類型： | 滿擺幅 |
| 轉(zhuǎn)換速率： | 0.16 V/µs |
| -3db帶寬： | 150kHz |
| 電流 - 輸入偏壓： | 70pA |
| 電壓 - 輸入偏移： | 10µV |
| 電流 - 電源： | 50µA |
| 電流 - 輸出 / 通道： | 40mA |
| 電壓 - 電源，單路/雙路(±)： | 1.8 V ~ 5.5 V，±0.9 V ~ 2.75 V |
| 工作溫度： | -40°C ~ 125°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 8-TSSOP，8-MSOP（0.118"，3.00mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 8-MSOP |
| 包裝： | 標準包裝 |
| 產(chǎn)品目錄頁面： | 849 (CN2011-ZH PDF) |
| 其它名稱： | 296-23565-6 |
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APPLICATION INFORMATION
SETTING THE GAIN
A
1
A
2
A
3
6
150kW
7
4
3
8
1
2
V
IN-
V
IN+
R
G
V+
V-
INA333
G=1+
100kW
R
G
5
RFIFilter
50kW
RFIFilter
Load
V =G
(V
V
-
)
O
IN+
IN-
0.1 F
m
0.1 F
m
+
-
V
O
R
G
Alsodrawninsimplifiedform:
INA333
Ref
V
O
V
IN-
V
IN+
Ref
RFIFilter
www.ti.com ..................................................................................................................................................... SBOS445B – JULY 2008 – REVISED OCTOBER 2008
Figure 32 shows the basic connections required for
Table 1 lists several commonly-used gains and
operation of the INA333. Good layout practice
resistor values. The 100k
term in Equation 1 comes
mandates the use of bypass capacitors placed close
from the sum of the two internal feedback resistors of
to the device pins as shown.
A1 and A2. These on-chip resistors are laser trimmed
to accurate absolute values. The accuracy and
The output of the INA333 is referred to the output
temperature coefficient of these resistors are included
reference
(REF)
terminal,
which
is
normally
in the gain accuracy and drift specifications of the
grounded. This connection must be low-impedance to
INA333.
assure good common-mode rejection. Although 15
or less of stray resistance can be tolerated while
The stability and temperature drift of the external gain
maintaining specified CMRR, small stray resistances
setting resistor, RG, also affects gain. The contribution
of tens of ohms in series with the REF pin can cause
of RG to gain accuracy and drift can be directly
noticeable degradation in CMRR.
inferred from the gain Equation 1. Low resistor values
required for high gain can make wiring resistance
important. Sockets add to the wiring resistance and
contribute additional gain error (possibly an unstable
Gain of the INA333 is set by a single external
gain error) in gains of approximately 100 or greater.
resistor, RG, connected between pins 1 and 8. The
To ensure stability, avoid parasitic capacitance of
more than a few picofarads at the RG connections.
Careful matching of any parasitics on both RG pins
G = 1 + (100k
/RG)
(1)
maintains optimal CMRR over frequency.
Figure 32. Basic Connections
Copyright 2008, Texas Instruments Incorporated
11
Product Folder Link(s): INA333
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| INA333AIDGKTG4 | 功能描述:儀表放大器 Low Pwr Instr Amp RoHS:否 制造商:Texas Instruments 通道數(shù)量: 輸入補償電壓:150 V 可用增益調(diào)整: 最大輸入電阻:10 kOhms 共模抑制比（最小值）:88 dB 工作電源電壓:2.7 V to 36 V 電源電流:200 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:MSOP-8 封裝:Bulk |
| INA333AIDRGR | 功能描述:儀表放大器 Lo Pwr Prec Instr Amp RoHS:否 制造商:Texas Instruments 通道數(shù)量: 輸入補償電壓:150 V 可用增益調(diào)整: 最大輸入電阻:10 kOhms 共模抑制比（最小值）:88 dB 工作電源電壓:2.7 V to 36 V 電源電流:200 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:MSOP-8 封裝:Bulk |
| INA333AIDRGT | 功能描述:儀表放大器 Lo Pwr Prec Instr Amp RoHS:否 制造商:Texas Instruments 通道數(shù)量: 輸入補償電壓:150 V 可用增益調(diào)整: 最大輸入電阻:10 kOhms 共模抑制比（最小值）:88 dB 工作電源電壓:2.7 V to 36 V 電源電流:200 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:MSOP-8 封裝:Bulk |
| INA333-HT | 制造商:TI 制造商全稱:Texas Instruments 功能描述:Micro-Power, Zer?-Drift, Rail-to-Rail Out Instrumentation Amplifier |
| INA333SHKJ | 功能描述:儀表放大器 Low Pwr,Prec Instr Amp RoHS:否 制造商:Texas Instruments 通道數(shù)量: 輸入補償電壓:150 V 可用增益調(diào)整: 最大輸入電阻:10 kOhms 共模抑制比（最小值）:88 dB 工作電源電壓:2.7 V to 36 V 電源電流:200 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:MSOP-8 封裝:Bulk |
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