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LTC6247_15 PDF预览

LTC6247_15

更新时间： 2024-01-20 14:45:00
品牌 Logo 应用领域
凌特 - Linear /
页数 文件大小 规格书
24页 492K
描述
180MHz, 1mA Power Efficient Rail-to-Rail I/O Op Amps

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LTC6247_15 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  
Fast Output Recovery  
n
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
For applications that require power-down, the LTC6246  
and the LTC6247 in MS10 offer a shutdown pin which  
disables the amplifier and reduces current consumption  
to 42µA.  
Open Loop Gain: 45V/mV  
n
Operating Temperature Range: –40°C to 125°C  
n
Single in 6-Pin TSOT-23  
n
Dual in MS8, 2mm × 2mm Thin DFN,TS0T-23, MS10  
n
Quad in MS16  
The LTC6246 family can be used as a plug-in replacement  
formanycommerciallyavailableopampstoreducepower  
or to improve input/output range and performance.  
applicaTions  
n
Low Voltage, High Frequency Signal Processing  
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear  
Technology Corporation. All other trademarks are the property of their respective owners.  
n
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  
0
f
f
= 350.195kHz  
SAMP  
IN  
Low Noise Low Distortion Gain = 2 ADC Driver  
–10  
–20  
–30  
–40  
–50  
–60  
–70  
–80  
–90  
–100  
–110  
= 2.2Msps  
SFDR = 82dB  
SNR = 70dB  
1024 POINT FFT  
3.3V 2.5V  
3.3V  
V
DD  
V
REF  
CS  
SDO  
SCK  
V
IN  
+
A
IN  
LTC6246  
LTC2366  
GND  
–
OV  
DD  
499Ω  
1%  
624678 TA01a  
499Ω  
1%  
10pF  
0
200  
400  
600  
800  
1000  
FREQUENCY (kHz)  
624678 TA01b  
624678fa  
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