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參數(shù)資料
| 型號： | OPA4130 |
| 英文描述： | Low Power, Precision FET-INPUT OPERATIONAL AMPLIFIERS |
| 中文描述： | 低功耗，精密FET輸入運算放大器 |
| 文件頁數(shù)： | 7/7頁 |
| 文件大?。?/td> | 289K |
| 代理商： | OPA4130 |
7
OPA130, 2130, 4130
APPLICATIONS INFORMATION
OPA130 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.
OPA130 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. OPA130 series op amps are free
from this undesirable behavior. All circuitry is completely
independent in dual and quad versions, assuring normal
behavior when one amplifier in a package is overdriven or
short-circuited.
OPERATING VOLTAGE
OPA130 series op amps operate with power supplies from
±
2.25V to
±
18V with excellent performance. Although
specifications are production tested with
±
15V supplies,
most behavior remains unchanged throughout the full
operating voltage range. Parameters which vary signifi-
cantly with operating voltage are shown in the typical
performance curves.
OFFSET VOLTAGE TRIM
Offset voltage of OPA130 series amplifiers is laser trimmed
and usually requires no user adjustment. The OPA130
(single op amp version) provides offset voltage trim con-
nections 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 to adjust system offset or offset produced by the
signal source. Nulling offset that is not produced by the
amplifier will change the offset voltage drift behavior of
the op amp.
V+
V–
100k
OPA130 single op amp only.
Use offset adjust pins only to null
offset voltage of op amp—see text.
Trim Range: ±5mV typ
OPA130
6
7
5
4
3
2
1
10nF
10nF
FIGURE 1. OPA130 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 stage cascode circuitry assures that the input bias
current remains virtually unchanged throughout the full
input common-mode range of the OPA130. See the typical
performance 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 |
|---|---|
| OPA4130PA | 制造商:Rochester Electronics LLC 功能描述:14 LD. PDIP FET OP AMP - Bulk |
| OPA4130UA | 功能描述:運算放大器 - 運放 Low Power Prec FET-Input 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 |
| OPA4130UA | 制造商:Texas Instruments 功能描述:IC OP AMP QUAD FET-INPUT 14SOIC 制造商:Texas Instruments 功能描述:IC, OP AMP, QUAD FET-INPUT, 14SOIC 制造商:Texas Instruments 功能描述:IC, OP AMP, QUAD FET-INPUT, 14SOIC; Op Amp Type:Low Power; No. of Amplifiers:4; Slew Rate:2V/s; Supply Voltage Range: 2.25V to 18V; Amplifier Case Style:SOIC; No. of Pins:14; Bandwidth:1MHz; Operating Temperature Min:-40C; ;RoHS Compliant: Yes |
| OPA4130UA | 制造商:Texas Instruments 功能描述:IC |
| OPA4130UA/2K5 | 功能描述:運算放大器 - 運放 Low Power Prec FET-Input 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 |
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