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參數(shù)資料
| 型號(hào)： | MAX4130EUK |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類(lèi)： | 運(yùn)動(dòng)控制電子 |
| 英文描述： | Single/Dual/Quad, Wide-Bandwidth, Low-Power, Single-Supply, Rail-to-Rail I/O Op Amps |
| 中文描述： | OP-AMP, 3500 uV OFFSET-MAX, 10 MHz BAND WIDTH, PDSO5 |
| 封裝： | SOT-23, 5 PIN |
| 文件頁(yè)數(shù)： | 9/16頁(yè) |
| 文件大?。?/td> | 194K |
| 代理商： | MAX4130EUK |
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M
S ingle/Dual/Quad, Wide-Bandwidth, Low-Power,
S ingle-S upply, Rail-to-Rail I/O Op Amps
_______________________________________________________________________________________
9
__________Applic ations Information
Rail-to-Rail Input S tage
Devices in the MAX4130–MAX4134 family of high-
speed amplifiers have rail-to-rail input and output
stages designed for low-voltage, single-supply opera-
tion. The input stage consists of separate NPN and
PNP differential stages that combine to provide an
input common-mode range that extends 0.2V beyond
the supply rails. The PNP stage is active for input volt-
ages close to the negative rail, and the NPN stage is
active for input voltages near the positive rail. The input
offset voltage is typically below 200μV. The switchover
transition region, which occurs near V
CC
/ 2, has been
extended to minimize the slight degradation in com-
mon-mode rejection ratio caused by the mismatch of
the input pairs. Their low offset voltage, high band-
width, and rail-to-rail common-mode range make these
op amps excellent choices for precision, low-voltage
data-acquisition systems.
Since the input stage switches between the NPN and
PNP pairs, the input bias current changes polarity as
the input voltage passes through the transition region.
Reduce the offset error caused by input bias currents
flowing through external source impedances by match-
ing the effective impedance seen by each input
(Figures 1a, 1b). High source impedances, together
with input capacitance, can create a parasitic pole that
produces an underdamped signal response. Reducing
the input impedance or placing a small (2pF to 10pF)
capacitor across the feedback resistor improves
response.
The MAX4130–MAX4134’s inputs are protected from
large differential input voltages by 1k
series resistors
and back-to-back triple diodes across the inputs
(Figure 2). For differential input voltages less than 1.8V,
input resistance is typically 500k
. For differential input
voltages greater than 1.8V, input resistance is approxi-
mately 2k
. The input bias current is given by the fol-
lowing equation:
I
= V
- 1.8V
2k
BIAS
DIFF
1k
1k
Figure 2. Input Protection Circuit
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAX4130 | Single/Dual/Quad, Wide-Bandwidth, Low-Power, Single-Supply, Rail-to-Rail I/O Op Amps |
| MAX4130-MAX4134 | Single/Dual/Quad, Wide-Bandwidth, Low-Power, Single-Supply, Rail-to-Rail I/O Op Amps |
| MAX4131 | Single/Dual/Quad, Wide-Bandwidth, Low-Power, Single-Supply, Rail-to-Rail I/O Op Amps |
| MAX4131ESA | Single/Dual/Quad, Wide-Bandwidth, Low-Power, Single-Supply, Rail-to-Rail I/O Op Amps |
| MAX4132 | Single/Dual/Quad, Wide-Bandwidth, Low-Power, Single-Supply, Rail-to-Rail I/O Op Amps |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX4130EUK+ | 制造商:Maxim Integrated Products 功能描述:OP AMP SGL GP R-R I/O 3.25V/6.5V 5PIN SOT-23 - Rail/Tube |
| MAX4130EUK+T | 功能描述:運(yùn)算放大器 - 運(yùn)放 Single Wide-Bandwdth Single-Supply R-R 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 |
| MAX4130EUK-T | 功能描述:運(yùn)算放大器 - 運(yùn)放 Single Wide-Bandwdth Single-Supply R-R 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 |
| MAX4130EUK-T+ | 制造商:Maxim Integrated Products 功能描述:Single SMT opamp,MAX4130EUK-T SOT23-5 |
| MAX4130-MAX4134 | 制造商:MAXIM 制造商全稱(chēng):Maxim Integrated Products 功能描述:Single/Dual/Quad, Wide-Bandwidth, Low-Power, Single-Supply, Rail-to-Rail I/O Op Amps |
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