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參數(shù)資料
| 型號(hào)： | MAX4490AXK+T |
| 廠商： | Maxim Integrated Products |
| 文件頁(yè)數(shù)： | 6/8頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | IC OP AMP SGL RRIO SC70-5 |
| 其它有關(guān)文件： | Automotive Product Guide |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 放大器類型： | 通用 |
| 電路數(shù)： | 1 |
| 輸出類型： | 滿擺幅 |
| 轉(zhuǎn)換速率： | 10 V/µs |
| 增益帶寬積： | 10MHz |
| 電流 - 輸入偏壓： | 50pA |
| 電壓 - 輸入偏移： | 1500µV |
| 電流 - 電源： | 800µA |
| 電流 - 輸出 / 通道： | 50mA |
| 電壓 - 電源，單路/雙路(±)： | 2.7 V ~ 5.5 V，±1.35 V ~ 2.75 V |
| 工作溫度： | -40°C ~ 125°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 6-TSSOP（5 引線），SC-88A，SOT-353 |
| 供應(yīng)商設(shè)備封裝： | SC-70-5 |
| 包裝： | 標(biāo)準(zhǔn)包裝 |
| 產(chǎn)品目錄頁(yè)面： | 1390 (CN2011-ZH PDF) |
| 其它名稱： | MAX4490AXK+TDKR |
pole at frequency (2
πR′CIN)-1, where R′ is the parallel
combination of the gain-setting resistors for the invert-
ing or noninverting amplifier configuration (Figure 2). If
the pole frequency is less than or comparable to the
unity-gain bandwidth (10MHz), the phase margin will
be reduced, and the amplifier will exhibit degraded
AC performance through either ringing in the step
response or sustained oscillations. The pole frequency is
10MHz when R
′ = 3.2k. To maximize stability, R′ <3k
is recommended.
Applications that require rail-to-rail operation with mini-
mal loading (for small VDD - VOH and VOL - VSS) will
typically require R
′ values >3k. To improve step
response under these conditions, connect a small
capacitor Cf between the inverting input and output.
Choose Cf as follows:
Cf = 5(R / Rf) [pf]
where Rf is the feedback resistor and R is the gain-set-
ting resistor (Figure 2).
Figure 3 shows the step response for a noninverting
amplifier subject to R
′ = 4k with and without the Cf
feedback capacitor.
MAX4490/MAX4491/MAX4492
Low-Cost, High-Slew-Rate,
Rail-to-Rail I/O Op Amps in SC70
6
_______________________________________________________________________________________
Figure 1a. Output Source Current vs. Temperature
Figure 1b. Output Sink Current vs. Temperature
0
1
2
3
4
5
6
-40
-10
-25
5
20 35 50 65 80
125
95 110
TEMPERATURE (
°C)
OUTPUT
SOURCE
CURRENT
(mA)
VDD - VOH = 200mV
VDD - VOH = 100mV
VDD - VOH = 50mV
VDD = 5V
VDD = 2.7V
0
1
2
3
4
5
6
7
8
9
-40
-10
-25
5
20 35
65
50
80
110
95
125
TEMPERATURE (
°C)
OUTPUT
SINK
CURRENT
(mA)
VDD - VOH = 200mV
VDD - VOH = 100mV
VDD - VOH = 50mV
VDD = 5V
VDD = 2.7V
Figure 2. Inverting and Noninverting Amplifier with Feedback
Compensation
MAX4490
VIN
VOUT
R
′ = R || Rf
RfCf = RCIN
Rf
Cf
R
MAX4490
VIN
VOUT
R
′ = R || Rf
RfCf = RCIN
Rf
R
Cf
INVERTING
NONINVERTING
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX4491AKA | 制造商:Maxim Integrated Products 功能描述:8 PIN COUNT SOT PACKAGE TYPE - Bulk |
| MAX4491AKA+ | 制造商:Maxim Integrated Products 功能描述:OP AMP DUAL GP R-R I/O 2.75V/5.5V 8PIN SOT-23 - Rail/Tube 制造商:Maxim Integrated Products 功能描述:IC OP AMP 10MHZ RR I/O SMD |
| MAX4491AKA+T | 功能描述:運(yùn)算放大器 - 運(yùn)放 High-Slew-Rate Rail-Rail 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 |
| MAX4491AKA-T | 功能描述:運(yùn)算放大器 - 運(yùn)放 High-Slew-Rate Rail-Rail 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 |
| MAX4491AUA | 功能描述:運(yùn)算放大器 - 運(yùn)放 High-Slew-Rate Rail-Rail 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 |
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