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LTC6246 PDF预览

LTC6246

更新时间: 2023-12-20 18:44:53
品牌 Logo 应用领域
亚德诺 - ADI 放大器运算放大器
页数 文件大小 规格书
26页 746K
描述
180MHz、1mA、低功率、高效、轨至轨输入 / 输出运算放大器

LTC6246 数据手册

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LTC6246/LTC6247/LTC6248  
180MHz, 1mA Power  
Efficient Rail-to-Rail  
I/O Op Amps  
FEATURES  
DESCRIPTION  
TheLTC®6246/LTC6247/LTC6248aresingle/dual/quadlow  
power,highspeedunitygainstablerail-to-railinput/output  
operationalamplifiers.Ononly1mAofsupplycurrentthey  
feature an impressive 180MHz gain-bandwidth product,  
90V/µs slew rate and a low 4.2nV/√Hz of input-referred  
noise. The combination of high bandwidth, high slew rate,  
low power consumption and low broadband noise makes  
these amplifiers unique among rail-to-rail input/output op  
ampswithsimilarsupplycurrents. Theyareidealforlower  
supply voltage high speed signal conditioning systems.  
n
Gain Bandwidth Product: 180MHz  
n
–3dB Frequency (A = 1): 120MHz  
V
n
Low Quiescent Current: 1mA Max  
n
High Slew Rate: 90V/µs  
n
Input Common Mode Range Includes Both Rails  
n
Output Swings Rail-to-Rail  
n
Low Broadband Voltage Noise: 4.2nV/√Hz  
n
Power-Down Mode: 42μA  
n
Fast Output Recovery  
n
Supply Voltage Range: 2.5V to 5.25V  
n
Input Offset Voltage: 0.5mV Max  
TheLTC6246familymaintainshighefficiencyperformance  
from supply voltage levels of 2.5V to 5.25V and is fully  
specified at supplies of 2.7V and 5.0V.  
n
Input Bias Current: 100nA  
n
Large Output Current: 50mA  
n
CMRR: 110dB  
n
Open Loop Gain: 45V/mV  
Forapplicationsthatrequirepower-down,theLTC6246and  
theLTC6247inMS10offerashutdownpinwhichdisables  
the amplifier and reduces current consumption to 42µA.  
n
Operating Temperature Range: –40°C to 125°C  
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Single in 6-Lead TSOT-23  
n
Dual in MS8, 2mm × 2mm DFN,TS0T-23, MS10  
The LTC6246 family can be used as a plug-in replacement  
formanycommerciallyavailableopampstoreducepower  
or to improve input/output range and performance.  
n
Quad in MS16  
APPLICATIONS  
All registered trademarks and trademarks are the property of their respective owners.  
n
Low Voltage, High Frequency Signal Processing  
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Driving A/D Converters  
n
Rail-to-Rail Buffer Amplifiers  
Active Filters  
Video Amplifiers  
Fast Current Sensing Amplifiers  
Battery Powered Equipment  
n
n
n
n
TYPICAL APPLICATION  
350kHz FFT Driving ADC  
ꢠ ꢖꢗꢋꢡꢕꢝꢗꢇꢈꢉ  
ꢢꢍꢌꢣ  
ꢏꢄ  
Low Noise Low Distortion Gain = 2 ADC Driver  
ꢔꢕꢋ  
ꢔꢙꢋ  
ꢔꢖꢋ  
ꢔꢚꢋ  
ꢔꢗꢋ  
ꢔꢛꢋ  
ꢔꢘꢋ  
ꢔꢜꢋ  
ꢔꢝꢋ  
ꢔꢕꢋꢋ  
ꢔꢕꢕꢋ  
ꢠ ꢙꢡꢙꢌꢤꢥꢤ  
ꢢꢀꢑR ꢠ ꢜꢙꢒꢓ  
ꢢꢄR ꢠ ꢘꢋꢒꢓ  
ꢕꢋꢙꢚ ꢣꢦꢏꢄꢐ ꢀꢀꢐ  
3.3V 2.5V  
3.3V  
V
DD  
V
REF  
CS  
SDO  
SCK  
V
IN  
+
A
LTC6246  
LTC2366  
GND  
IN  
OV  
DD  
499Ω  
1%  
624678 TA01a  
499Ω  
1%  
10pF  
ꢙꢋꢋ  
ꢚꢋꢋ  
ꢛꢋꢋ  
ꢜꢋꢋ  
ꢕꢋꢋꢋ  
ꢀRꢁꢂꢃꢁꢄCꢅ ꢆꢇꢈꢉꢊ  
ꢛꢙꢚꢛꢘꢜ ꢐꢍꢋꢕꢞ  
Rev C  
1
Document Feedback  
For more information www.analog.com  

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