參數(shù)資料
型號: MAX4321EUK+T
廠商: Maxim Integrated Products
文件頁數(shù): 11/12頁
文件大?。?/td> 0K
描述: IC OP AMP RRIO LV SOT23-5
產(chǎn)品培訓(xùn)模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標準包裝: 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: 2 V/µs
增益帶寬積: 5MHz
電流 - 輸入偏壓: 50nA
電壓 - 輸入偏移: 1200µV
電流 - 電源: 725µA
電流 - 輸出 / 通道: 50mA
電壓 - 電源,單路/雙路(±): 2.4 V ~ 6.5 V,±1.2 V ~ 3.25 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: SC-74A,SOT-753
供應(yīng)商設(shè)備封裝: SOT-23-5
包裝: 標準包裝
產(chǎn)品目錄頁面: 1389 (CN2011-ZH PDF)
其它名稱: MAX4321EUK+TDKR
MAX4321
Low-Cost, Low-Voltage, Rail-to-Rail,
Input/Output, SOT23 5MHz Op Amp
8
_______________________________________________________________________________________
Rail-to-Rail Output Stage
The minimum output voltage will be within millivolts of
ground for single-supply operation where the load is
referenced to ground (VEE). Figure 3 shows the input
voltage range and output voltage swing of a MAX4321
connected as a voltage follower. With a +3V supply
and the 100k
Ω load tied to ground, the output swings
from 0.02V to 2.97V. The maximum output voltage
swing depends on the load but will be within 300mV of
a +5V supply, even with the maximum load (250
Ω to
ground).
Driving a capacitive load can cause instability in most
high-speed op amps, especially those with low quies-
cent current. The MAX4321 has a high tolerance for
capacitive loads. It is stable with capacitive loads up to
500pF. Figure 4 gives the stable operating region for
capacitive loads. Figures 5 and 6 show the response
with capacitive loads and the results of adding an isola-
tion resistor in series with the output (Figure 7). The
resistor improves the circuit’s phase margin by isolating
the load capacitor from the op amp’s output.
Figure 3. Rail-to-Rail Input /Output Voltage Range
Figure 4. Capacitive-Load Stability
Figure 5. Small-Signal Transient Response with Capacitive
Load
Figure 6. Transient Response to Capacitive Load with Isolation
Resistor
IN
400ns/div
VOLTAGE
50mV/div
OUT
AV = +1
CL = 500pF
IN
400ns/div
VOLTAGE
50mV/div
OUT
AV = +1
CL = 1000pF
RS = 39
Ω
IN
2
μs/div
VOLTAGE
1V/div
OUT
VCC = 3V
AV = +1
RL = 100k
Ω
10,000
100
1k
100k
10k
RESISTIVE LOAD (
Ω)
LOAD
CAPACITIVE
(pF)
1000
UNSTABLE
REGION
RL TO VEE
VOUT = VCC / 2
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MAX4322ESA+ 功能描述:運算放大器 - 運放 Low-Power Rail-Rail I/O 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
MAX4322ESA+T 功能描述:運算放大器 - 運放 Low-Power Rail-Rail I/O 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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