參數(shù)資料
型號(hào)： OPA4228UA2K5
廠商： Texas Instruments, Inc.
英文描述： High Precision, Low Noise OPERATIONAL AMPLIFIERS
中文描述： 高精度，低噪聲運(yùn)算放大器
文件頁(yè)數(shù)： 15/27頁(yè)
文件大?。?/td> 847K
代理商： OPA4228UA2K5
OPA227, 2227, 4227
OPA228, 2228, 4228
SBOS110A
15
www.ti.com
Without external compensation, the noise specification of
the OPA228 is the same as that for the OPA227 in gains of
5 or greater. With the additional external compensation, the
output noise of the of the OPA228 will be higher. The
amount of noise increase is directly related to the increase
in high frequency closed-loop gain established by the C
IN
/
C
F
ratio.
Figures 8 and 11 show the recommended circuit for gains
of +2 and –2, respectively. The figures suggest approximate
FIGURE 8. Compensation of the OPA228 for G =+2.
FIGURE 9. Large-Signal Step Response, G = +2, C
LOAD
=
100pF, Input Signal = 5Vp-p.
FIGURE 10. Small-Signal Step Response, G = +2, C
LOAD
=
100pF, Input Signal = 50mVp-p.
400ns/div
5
values for C
F
. Because compensation is highly dependent
on circuit design, board layout, and load conditions, C
F
should be optimized experimentally for best results. Fig-
ures 9 and 10 show the large- and small-signal step re-
sponses for the G = +2 configuration with 100pF load
capacitance. Figures 12 and 13 show the large- and small-
signal step responses for the G = –2 configuration with
100pF load capacitance.
200ns/div
2
FIGURE 11. Compensation for OPA228 for G = –2.
FIGURE 12. Large-Signal Step Response, G = –2, C
LOAD
=
100pF, Input Signal = 5Vp-p.
400ns/div
5
200ns/div
2
FIGURE 13. Small-Signal Step Response, G = –2, C
LOAD
=
100pF, Input Signal = 50mVp-p.
2k
OPA228
22pF
2k
100pF
2k
1k
2k
15pF
OPA228
2k
100pF
OPA228
OPA228
OPA228
OPA228
相關(guān)PDF資料
PDF描述
OPA348AI 1MHz, 45レA, CMOS, Rail-to-Rail OPERATIONAL AMPLIFIERS
OPA2348AI 1MHz, 45レA, CMOS, Rail-to-Rail OPERATIONAL AMPLIFIERS
OPA4348AI 1MHz, 45レA, CMOS, Rail-to-Rail OPERATIONAL AMPLIFIERS
OPA4363 1.8V, 7MHz, 90dB CMRR, SINGLE-SUPPLY, RAIL-TO-RAIL I/O OPERATIONAL AMPLIFIER
OPA363AIDR 1.8V, 7MHz, 90dB CMRR, SINGLE-SUPPLY, RAIL-TO-RAIL I/O OPERATIONAL AMPLIFIER
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
OPA4228UAE4 功能描述:運(yùn)算放大器 - 運(yùn)放 High Prec Low Noise Oper Amplifier RoHS:否 制造商:STMicroelectronics 通道數(shù)量:4 共模抑制比（最小值）:63 dB 輸入補(bǔ)償電壓:1 mV 輸入偏流（最大值）:10 pA 工作電源電壓:2.7 V to 5.5 V 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-16 轉(zhuǎn)換速度:0.89 V/us 關(guān)閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel
OPA4234 制造商:BB 制造商全稱:BB 功能描述:Low-Power, Precision SINGLE-SUPPLY OPERATIONAL AMPLIFIERS
OPA4234P 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Voltage-Feedback Operational Amplifier
OPA4234PA 制造商:BB 制造商全稱:BB 功能描述:Low Power, Precision SINGLE-SUPPLY OPERATIONAL AMPLIFIERS
OPA4234U 功能描述:運(yùn)算放大器 - 運(yùn)放 Low Power Prec Sngl-Sply Oper Amp RoHS:否 制造商:STMicroelectronics 通道數(shù)量:4 共模抑制比（最小值）:63 dB 輸入補(bǔ)償電壓:1 mV 輸入偏流（最大值）:10 pA 工作電源電壓:2.7 V to 5.5 V 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-16 轉(zhuǎn)換速度:0.89 V/us 關(guān)閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*