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參數(shù)資料
| 型號： | MAX4289ESA+ |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 7/9頁 |
| 文件大小： | 0K |
| 描述： | IC OP AMP SNGL 8-SOIC |
| 產(chǎn)品培訓模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標準包裝： | 100 |
| 放大器類型： | 通用 |
| 電路數(shù)： | 1 |
| 輸出類型： | 滿擺幅 |
| 轉(zhuǎn)換速率： | 0.006 V/µs |
| 增益帶寬積： | 17kHz |
| 電流 - 輸入偏壓： | 5nA |
| 電壓 - 輸入偏移： | 200µV |
| 電流 - 電源： | 18µA |
| 電流 - 輸出 / 通道： | 19mA |
| 電壓 - 電源，單路/雙路(±)： | 1 V ~ 5.5 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 8-SOIC（0.154"，3.90mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 8-SOIC |
| 包裝： | 管件 |
| 產(chǎn)品目錄頁面： | 1389 (CN2011-ZH PDF) |
Power-Up Settling Time
The MAX4289 typically requires 300s to power-up
after VCC is stable. During this startup time, the output
is indeterminate. The application circuit should allow for
this initial delay.
Driving Capacitive Loads
The MAX4289 is unity-gain stable for loads up to
200pF. Applications that require greater capacitive-
drive capability should use an isolation resistor
between the output and the capacitive load (Figure 4).
Note that this solution results in a loss of gain accuracy
because RISO forms a voltage-divider with the load
resistor.
Using the MAX4289 as a Comparator
Although optimized for use as an operational amplifier,
the MAX4289 can also be used as a rail-to-rail I/O com-
parator (Figure 5). External hysteresis can be used to
minimize the risk of output oscillation. The positive feed-
back circuit, shown in Figure 5, causes the input thresh-
old to change when the output voltage changes state.
Power Supplies and Layout
The MAX4289 operates from a single 1V to 5.5V power
supply. Bypass the power with a 0.1F capacitor to
ground.
Good layout techniques optimize performance by
decreasing the amount of stray capacitance at the op
amp’s inputs and outputs. To decrease stray capaci-
tance, minimize trace lengths by placing external com-
ponents close to the op amp’s pins.
MAX4289
1.0V Micropower, SOT23, Operational Amplifier
_______________________________________________________________________________________
7
50
60
70
80
90
POWER-SUPPLY REJECTION RATIO
vs. SUPPLY VOLTAGE
SUPPLY VOLTAGE (V)
PSRR
(dB)
0.8
1.1
1.2
0.9
1.0
1.3
1.4
1.5
TA = +85
°C
TA = +25
°C
TA = -40
°C
Figure 3. PSRR vs. VCC Over the Temperature Range
RISO
CL
RL
AV =
≈ 1
RL
RL + RISO
MAX4289
Figure 4. Using a Resistor to Isolate a Capacitive Load from
the Op Amp
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX4289ESA+ | 功能描述:運算放大器 - 運放 1.0V uPower 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 |
| MAX4289ESA+T | 功能描述:運算放大器 - 運放 1.0V uPower 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 |
| MAX4289ESA-T | 功能描述:運算放大器 - 運放 1.0V uPower 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 |
| MAX4289EUT | 制造商:Maxim Integrated Products 功能描述:- Rail/Tube |
| MAX4289EUT+ | 制造商:Maxim Integrated Products 功能描述:OP AMP SGL GP R-R O/P 5.5V 6PIN SOT-23 - Rail/Tube |
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