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參數(shù)資料
| 型號： | INA2322 |
| 元件分類： | 測量放大器 |
| 英文描述： | Precision Instrumentation Amplifier |
| 中文描述： | 精密儀表放大器 |
| 文件頁數(shù)： | 9/15頁 |
| 文件大?。?/td> | 303K |
| 代理商： | INA2322 |
INA322
SBOS174
9
APPLICATIONS INFORMATION
The INA322 is a modified version of the classic “two op amp”
instrumentation amplifier, with an additional gain amplifier.
Figure 1 shows the basic connections for the operation of the
INA322 and INA2322. The power supply should be capaci-
tively decoupled with 0.1
μ
F capacitors as close to the
INA322 as possible for noisy or high-impedance applica-
tions.
The output is referred to the reference terminal, which must
be at least 1.2V below the positive supply rail.
OPERATING VOLTAGE
The INA322 family is fully specified and guaranteed over a
supply range of +2.7V to +5.5V, with key parameters
guaranteed over the temperature range of -55
°
C to +125
°
C.
Parameters that vary significantly with operating conditions,
such as load conditions or temperature, are shown in the
Typical Performance Curves.
The INA322 may be operated on a single supply. Figure 2
shows a bridge amplifier circuit operated from a single +5V
supply. The bridge provides a small differential voltage
riding on an input common-mode voltage.
FIGURE 1. Basic Connections.
FIGURE 2. Bridge Amplifier of the INA322.
160k
40k
40k
160k
3
2
5
1
7
8
4
Also drawn in simplified form:
6
REF
0.1
μ
F
0.1
μ
F
RG
V
IN
–
V
IN
+
V
–
V+
A1
A3
A2
V
O
= ((V
IN
+)
–
(V
IN
–
))
G
Short V
to RG
for G = 5
5
10
50
100
SHORT
100k
90k
190k
OPEN
100k
10k
10k
R
2
R
1
Shutdown
(For Single
Supply)
DESIRED GAIN
(V/V)
R
1
R
2
G = 5 + 5(R
2
/ R
1
)
INA322
5
3
2
V
OUT
8
7
6
4
1
V+
Shutdown
RG
V
IN
–
V
–
V
IN
+
REF
Bridge
Sensor
+5V
NOTE: (1) REF should be adjusted for the desired output level,
keeping in mind that the value of REF affects the common-mode
input range. See Typical Performance Curves.
INA322
5
3
2
V
OUT
8
7
6
4
V
–
1
V+
Shutdown
RG
V
IN
–
V
IN
+
REF
(1)
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| INA2322EA/250 | 功能描述:差分放大器 Micropwr Single-sply CMOS RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 Channel 帶寬:2.4 GHz 可用增益調(diào)整:6 dB to 26 dB 輸入補(bǔ)償電壓: 共模抑制比（最小值）:- 40 dB 工作電源電壓:4.75 V to 5.25 V 電源電流:100 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WQFN-24 封裝:Reel |
| INA2322EA/250G4 | 功能描述:差分放大器 Micropwr Single-sply CMOS RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 Channel 帶寬:2.4 GHz 可用增益調(diào)整:6 dB to 26 dB 輸入補(bǔ)償電壓: 共模抑制比（最小值）:- 40 dB 工作電源電壓:4.75 V to 5.25 V 電源電流:100 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WQFN-24 封裝:Reel |
| INA2322EA/2K5 | 功能描述:差分放大器 Micropwr Single-sply CMOS RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 Channel 帶寬:2.4 GHz 可用增益調(diào)整:6 dB to 26 dB 輸入補(bǔ)償電壓: 共模抑制比（最小值）:- 40 dB 工作電源電壓:4.75 V to 5.25 V 電源電流:100 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WQFN-24 封裝:Reel |
| INA2322EA/2K5G4 | 功能描述:差分放大器 Micropwr Single-sply CMOS RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 Channel 帶寬:2.4 GHz 可用增益調(diào)整:6 dB to 26 dB 輸入補(bǔ)償電壓: 共模抑制比（最小值）:- 40 dB 工作電源電壓:4.75 V to 5.25 V 電源電流:100 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WQFN-24 封裝:Reel |
| INA2322EA250 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:microPower, Single-Supply, CMOS NTATION AMPLIFIER |
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