參數(shù)資料
型號: MAX4284ESD
廠商: Maxim Integrated Products
文件頁數(shù): 6/20頁
文件大?。?/td> 0K
描述: IC OPAMP QUAD OPEN R-TO-R 14SOIC
產(chǎn)品培訓模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標準包裝: 50
系列: GainAmp™
放大器類型: 通用
電路數(shù): 4
輸出類型: 滿擺幅
轉換速率: 0.7 V/µs
增益帶寬積: 2MHz
電流 - 輸入偏壓: 50pA
電壓 - 輸入偏移: 500µV
電流 - 電源: 320µA
電流 - 輸出 / 通道: 65mA
電壓 - 電源,單路/雙路(±): 2.5 V ~ 5.5 V,±1.25 V ~ 2.75 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 14-SOIC(0.154",3.90mm 寬)
供應商設備封裝: 14-SOIC
包裝: 管件
MAX4174/5,
MAX4274/5,
MAX4281/2/4
SOT23, Rail-to-Rail, Fixed-Gain
GainAmps/Open-Loop Op Amps
14
______________________________________________________________________________________
MAX4174
VEE
VCC
RG
RF
RISO
CL
RL
OUTPUT
INPUT
Figure 9. Dual-Supply, Capacitive-Load Driving Circuit
Figure 10. Small-Signal/Large-Signal Transient Response with
Excessive Capacitive Load with Isolation Resistor
AV = +5V/V
50mV/div
INPUT
OUTPUT
AV = +5V/V
500mV/div
Supply Bypassing and Board Layout
All devices in the GainAmp family operate from a +2.5V
to +5.5V single supply or from ±1.25V to ±2.75V dual
supplies. For single-supply operation, bypass the
power supply with a 0.1F capacitor to ground. For
dual supplies, bypass each supply to ground. Bypass
with capacitors as close to the device as possible, to min-
imize lead inductance and noise. A printed circuit board
with a low-inductance ground plane is recommended.
Capacitive-Load Stability
Driving large capacitive loads can cause instability in
most low-power, rail-to-rail output amplifiers. The fixed-
gain amplifiers of this GainAmp family are stable with
capacitive loads up to 470pF. Stability with higher
capacitive loads can be improved by adding an isolation
resistor in series with the op-amp output, as shown in
Figure 9. This resistor improves the circuit’s phase mar-
gin by isolating the load capacitor from the amplifier’s
output. In Figure 10, a 1000pF capacitor is driven with a
100
isolation resistor exhibiting some overshoot but no
oscillation. Figures 11 and 12 show the typical small-sig-
nal pulse responses of GainAmp fixed-gain amplifiers
with 250pF and 470pF capacitive loads and no isolation
resistor.
MAX4174
VEE
VCC
RG
RF
VIN
VOUT = VIN
(1+
RF )
RG
Figure 8. Dual-Supply, DC-Coupled Noninverting Amplifier
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相關代理商/技術參數(shù)
參數(shù)描述
MAX4284ESD+ 制造商:Maxim Integrated Products 功能描述:
MAX4284ESD-T 功能描述:運算放大器 - 運放 Rail-Rail Fixed-Gain Gain Amps/Open-Loop 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 轉換速度:0.89 V/us 關閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel
MAX4284EUD 制造商:Maxim Integrated Products 功能描述:- Rail/Tube
MAX4285ESA 功能描述:高速運算放大器 3V/5V 250MHz ADC Buffer Amp RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 電壓增益 dB:116 dB 輸入補償電壓:0.5 mV 轉換速度:55 V/us 工作電源電壓:36 V 電源電流:7.5 mA 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube
MAX4285ESA+ 功能描述:高速運算放大器 3V/5V 250MHz ADC Buffer Amp RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 電壓增益 dB:116 dB 輸入補償電壓:0.5 mV 轉換速度:55 V/us 工作電源電壓:36 V 電源電流:7.5 mA 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube