參數資料
型號: AD8226BRMZ-RL
廠商: Analog Devices Inc
文件頁數: 17/28頁
文件大?。?/td> 0K
描述: IC INSTR AMP RRO +/-18 8MSOP
標準包裝: 3,000
放大器類型: 儀表
電路數: 1
輸出類型: 滿擺幅
轉換速率: 0.6 V/µs
-3db帶寬: 1.5MHz
電流 - 輸入偏壓: 20nA
電壓 - 輸入偏移: 100µV
電流 - 電源: 350µA
電流 - 輸出 / 通道: 13mA
電壓 - 電源,單路/雙路(±): 2.2 V ~ 36 V,±1.35 V ~ 18 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)
供應商設備封裝: 8-MSOP
包裝: 帶卷 (TR)
AD8226
Data Sheet
Rev. C | Page 24 of 28
PRECISION STRAIN GAGE
The low offset and high CMRR over frequency of the AD8226
make it an excellent candidate for performing bridge measure-
ments. The bridge can be connected directly to the inputs of the
amplifier (see Figure 65).
5V
2.5V
10F
0.1F
AD8226
+IN
–IN
RG
350
+
07036-
010
Figure 65. Precision Strain Gage
DRIVING AN ADC
Figure 66 shows several methods for driving an ADC. The
ADuC7026 microcontroller was chosen for this example because it
contains ADCs with an unbuffered, charge-sampling architecture
that is typical of most modern ADCs. This type of architecture
typically requires an RC buffer stage between the ADC and
amplifier to work correctly.
Option 1 shows the minimum configuration required to drive
a charge-sampling ADC. The capacitor provides charge to the
ADC sampling capacitor while the resistor shields the AD8226
from the capacitance. To keep the AD8226 stable, the RC time
constant of the resistor and capacitor needs to stay above 5 s.
This circuit is mainly useful for lower frequency signals.
Option 2 shows a circuit for driving higher speed signals. It uses a
precision op amp (AD8616) with relatively high bandwidth and
output drive. This amplifier can drive a resistor and capacitor with
a much higher time constant and is therefore suited for higher
frequency applications.
Option 3 is useful for applications where the AD8226 needs to
run off a large voltage supply but drive a single-supply ADC.
In normal operation, the AD8226 output stays within the ADC
range, and the AD8616 simply buffers it. However, in a fault
condition, the output of the AD8226 may go outside the supply
range of both the AD8616 and the ADC. This is not an issue in
the circuit, however, because the 10 kΩ resistor between the two
amplifiers limits the current into the AD8616 to a safe level.
AD8226
REF
100nF
100
10k
10
10nF
ADC0
ADC1
ADC2
AGND
3.3V
OPTION 1: DRIVING LOW FREQUENCY SIGNALS
OPTION 2: DRIVING HIGH FREQUENCY SIGNALS
OPTION 3: PROTECTING ADC FROM LARGE VOLTAGES
3.3V
AD8226
AD8616
ADuC7026
REF
3.3V
10
10nF
AD8226
AD8616
REF
+15V
–15V
AVDD
07036-
065
Figure 66. Driving an ADC
相關PDF資料
PDF描述
0459844432 CONN RCPT R/A 4PWR 20SGL 2.36MM
0034.5140 FUSE 6A 250V 6.3X32 FAST GLASS
LTC6104HMS8#TRPBF IC AMP CURRENT SENSE 8-MSOP
0034.5238 FUSE 4A 250V 6.3X32 T-LAG GLASS
0034.5131 FUSE 2A 250V 6.3X32 FAST GLASS
相關代理商/技術參數
參數描述
AD8226BRZ 功能描述:IC INSTR AMP +/-18 8SOIC RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標準包裝:1 系列:- 放大器類型:通用 電路數:4 輸出類型:滿擺幅 轉換速率:0.028 V/µs 增益帶寬積:105kHz -3db帶寬:- 電流 - 輸入偏壓:3nA 電壓 - 輸入偏移:100µV 電流 - 電源:3.3µA 電流 - 輸出 / 通道:12mA 電壓 - 電源,單路/雙路(±):2.7 V ~ 12 V,±1.35 V ~ 6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:14-TSSOP(0.173",4.40mm 寬) 供應商設備封裝:14-TSSOP 包裝:剪切帶 (CT) 其它名稱:OP481GRUZ-REELCT
AD8226BRZ-R7 功能描述:IC INSTR AMP RRO +/-18 8SOIC RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標準包裝:50 系列:- 放大器類型:通用 電路數:2 輸出類型:滿擺幅 轉換速率:1.8 V/µs 增益帶寬積:6.5MHz -3db帶寬:4.5MHz 電流 - 輸入偏壓:5nA 電壓 - 輸入偏移:100µV 電流 - 電源:65µA 電流 - 輸出 / 通道:35mA 電壓 - 電源,單路/雙路(±):1.8 V ~ 5.25 V,±0.9 V ~ 2.625 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:10-TFSOP,10-MSOP(0.118",3.00mm 寬) 供應商設備封裝:10-MSOP 包裝:管件
AD8226BRZ-RL 功能描述:IC INSTR AMP RRO +/-18 8SOIC RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標準包裝:1 系列:- 放大器類型:通用 電路數:4 輸出類型:滿擺幅 轉換速率:0.6 V/µs 增益帶寬積:1MHz -3db帶寬:- 電流 - 輸入偏壓:2pA 電壓 - 輸入偏移:1000µV 電流 - 電源:85µA 電流 - 輸出 / 通道:20mA 電壓 - 電源,單路/雙路(±):1.8 V ~ 6 V 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:14-SOIC(0.154",3.90mm 寬) 供應商設備封裝:14-SOICN 包裝:剪切帶 (CT) 產品目錄頁面:680 (CN2011-ZH PDF) 其它名稱:MCP6L04T-E/SLCT
AD8226CRMZ 制造商:AD 制造商全稱:Analog Devices 功能描述:Wide Supply Range, Rail-to-Rail Output Instrumentation Amplifier
AD8226CRMZ-R7 制造商:AD 制造商全稱:Analog Devices 功能描述:Wide Supply Range, Rail-to-Rail Output Instrumentation Amplifier