參數(shù)資料
型號(hào): OPA2131PJ
英文描述: General Purpose FET-INPUT OPERATIONAL AMPLIFIERS
中文描述: 通用FET輸入運(yùn)算放大器
文件頁(yè)數(shù): 7/7頁(yè)
文件大小: 318K
代理商: OPA2131PJ
7
OPA131/2131/4131
APPLICATIONS INFORMATION
OPA131 series op amps are unity-gain stable and suitable
for a wide range of general-purpose applications. Power
supply pins should be bypassed with 10nF ceramic capaci-
tors or larger.
OPA131 series op amps are free from unexpected output
phase-reversal common with FET op amps. Many FET-
input op amps exhibit phase-reversal of the output when the
input common-mode voltage range is exceeded. This can
occur in voltage-follower circuits, causing serious problems
in control loop applications. All circuitry is completely
independent in dual and quad versions, assuring normal
behavior when one amplifier in a package is overdriven or
short-circuited.
OFFSET VOLTAGE TRIM
The OPA131 (single op amp version) provides offset
voltage trim connections on pins 1 and 5. Offset voltage
can be adjusted by connecting a potentiometer as shown in
Figure 1. This adjustment should be used only to null the
offset of the op amp, not system offset or offset produced
by the signal source.
V+
V–
100k
OPA131
(Single op amp only)
Trim Range: ±20mV typ
OPA131
6
7
5
4
3
2
1
FIGURE 1. OPA131 Offset Voltage Trim Circuit.
INPUT BIAS CURRENT
The input bias current is approximately 5pA at room tem-
perature and increases with temperature as shown in the
typical performance curve “Input Bias Current vs Tempera-
ture.”
Input bias current also varies with common-mode voltage
and power supply voltage. This variation is dependent on the
voltage between the negative power supply and the com-
mon-mode input voltage. The effect is shown in the typical
curve “Input Bias Current vs Common-Mode Voltage.”
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
OPA2131UA 功能描述:運(yùn)算放大器 - 運(yùn)放 Gen Purp FET-Input 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
OPA2131UA 制造商:Texas Instruments 功能描述:OP AMP ((NW)) 制造商:Texas Instruments 功能描述:IC, OP-AMP, 4MHz, 10V/ us, SOIC-8
OPA2131UA/2K5 功能描述:運(yùn)算放大器 - 運(yùn)放 Gen Purp FET-Input 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
OPA2131UA/2K5E4 功能描述:運(yùn)算放大器 - 運(yùn)放 Gen Purp FET-Input 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
OPA2131UA/2K5G4 功能描述:運(yùn)算放大器 - 運(yùn)放 Gen Purp FET-Input 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