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LTC6253-7 PDF预览

LTC6253-7

更新时间： 2024-09-26 01:01:39
品牌 Logo 应用领域
凌特 - Linear /
页数 文件大小 规格书
18页 1033K
描述
2GHz, 3.5mA Gain of 7 Stable Rail-to-Rail I/O Dual Op Amp

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LTC6253-7 数据手册

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LTC6253-7  
2GHz, 3.5mA Gain of 7  
Stable Rail-to-Rail I/O  
Dual Op Amp  
FEATURES  
DESCRIPTION  
The LTC®6253-7 is a dual high speed, low power, rail-to-  
rail input/output operational amplifier. On only 3.5mA of  
supplycurrent,itfeaturesa2GHzgain-bandwidthproduct,  
500V/µs slew rate and a low 2.75nV/√Hz of input-referred  
noise. The combination of high bandwidth, high slew rate,  
low power consumption and low broadband noise makes  
the LTC6253-7 ideal for lower supply voltage, high speed  
signalconditioningsystems.Thedeviceisstableforclosed  
loop noise gains of 7 or higher.  
n
Gain Bandwidth Product: 2GHz  
n
–3dB Frequency (A = 7): 160MHz  
V
n
n
n
n
n
n
n
n
n
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Low Quiescent Current: 3.5mA Max  
High Slew Rate: 500V/µs  
Input Common Mode Range Includes Both Rails  
Output Swings Rail-to-Rail  
Low Broadband Voltage Noise: 2.75nV/√Hz  
Fast Output Recovery  
Supply Voltage Range: 2.5V to 5.25V  
Input Offset Voltage: 350µV Max  
Large Output Current: 90mA  
The LTC6253-7 maintains high efficiency performance  
from supply voltage levels of 2.5V to 5.25V and is fully  
specified at supplies of 2.7V and 5.0V.  
CMRR: 105dB  
Open Loop Gain: 60V/mV  
For applications that require power-down, the LTC6253-7  
offers a shutdown pin which disables the amplifier and  
reduces current consumption to 42µA.  
Operating Temperature Range: –40°C to 125°C  
MS10 Package with Independent Shutdown Pins  
The LTC6253-7 can be used as a plug-in replacement for  
many commercially available op amps to reduce power or  
to improve input/output range and performance.  
APPLICATIONS  
n
Low Voltage, High Frequency Signal Processing  
n
Driving A/D Converters  
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear  
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Rail-to-Rail Buffer Amplifiers  
Active Filters  
Technology Corporation. All other trademarks are the property of their respective owners.  
n
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Battery Powered Equipment  
TYPICAL APPLICATION  
LTC6253–7 Driving LTC2314–14  
1024 Point FFT  
ADC Driver with Gain  
0
–10  
–20  
–30  
–40  
–50  
–60  
–70  
–80  
5V  
3.3V  
f
= 2Msps  
S
F1 = 20.5kHz  
F1 AMPLITUDE = –0.916dBFS  
SFDR = 89dB  
2.2µF  
2.2µF  
2.2µF  
SNR = 72dB  
4.4V  
V
REF OV  
DD  
DD  
½ LTC6253-7  
V
= 0V TO 580mV  
CS  
CS  
+
–
IN  
+
V
100Ω  
LTC2314-14  
8-PIN TSOT  
SCK  
SDO  
SCK  
SDO  
A
IN  
OUT  
–
V
47pF  
1.21k  
200Ω  
–90  
GND  
–100  
–110  
–120  
–130  
–0.7V  
625234 TA01  
0
100 200 300 400 500 600 700 800 9001000  
FREQUENCY (kHz)  
62537 TA01b  
62537f  
1
For more information www.linear.com/LTC6253-7  
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