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LTC6252_15 PDF预览

LTC6252_15

更新时间: 2024-09-26 01:13:51
品牌 Logo 应用领域
凌特 - Linear /
页数 文件大小 规格书
26页 950K
描述
720MHz, 3.5mA Power Efficient Rail-to-Rail I/O Op Amps

LTC6252_15 数据手册

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LTC6252/LTC6253/LTC6254  
720MHz, 3.5mA Power  
Efficient Rail-to-Rail  
I/O Op Amps  
FEATURES  
DESCRIPTION  
TheLTC®6252/LTC6253/LTC6254aresingle/dual/quadlow  
power,highspeedunitygainstablerail-to-railinput/output  
operational amplifiers. On only 3.5mA of supply current  
they feature a 720MHz gain-bandwidth product, 280V/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  
LTC6252 family unique among rail-to-rail input/output op  
ampswithsimilarsupplycurrents. Theyareidealforlower  
supply voltage high speed signal conditioning systems.  
n
Gain Bandwidth Product: 720MHz  
n
–3dB Frequency (A = 1): 400MHz  
V
n
Low Quiescent Current: 3.5mA Max  
n
High Slew Rate: 280V/µs  
n
Input Common Mode Range Includes Both Rails  
n
Output Swings Rail-to-Rail  
n
Low Broadband Voltage Noise: 2.75nV/√Hz  
n
Power-Down Mode: 42μA  
Fast Output Recovery  
n
n
Supply Voltage Range: 2.5V to 5.25V  
n
Input Offset Voltage: 350µV Max  
TheLTC6252familymaintainshighefficiencyperformance  
from supply voltage levels of 2.5V to 5.25V and is fully  
specified at supplies of 2.7V and 5.0V.  
n
Large Output Current: 90mA  
n
CMRR: 105dB  
n
Open Loop Gain: 60V/mV  
n
Forapplicationsthatrequirepower-down,theLTC6252and  
the LTC6253 in MS10 offer a shutdown pin which disables  
the amplifier and reduces current consumption to 42µA.  
Operating Temperature Range: –40°C to 125°C  
n
Single in 6-Pin TSOT-23  
n
Dual in MS8, 2mm × 2mm DFN, 8-Pin TS0T-23, MS10  
n
Quad in MS16  
The LTC6252 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  
n
Active Filters  
n
Battery Powered Equipment  
TYPICAL APPLICATION  
5V Single-Supply 16-Bit ADC Driver  
LTC6253 Driving LTC2393-16  
16-Bit ADC 5V Single-Supply  
Performance  
5V  
5V  
0.1µF  
5V  
0.1µF  
1.8V TO 5V  
4.7µF  
V
+
IN  
0
–20  
27.4mV TO  
10µF  
10µF  
½ LTC6253  
(3.5V + 27.4mV)  
AVP  
DVP  
OVP  
–40  
PARALLEL  
OR  
SERIAL  
INTERFACE  
249Ω  
100Ω  
16 BIT  
+
143Ω  
2.5k  
2.5k  
–60  
IN  
–80  
5V  
845Ω  
3900pF  
249Ω  
LTC2393-16  
SER/PAR  
BYTESWAP  
OB/2C  
CS  
–100  
–120  
–140  
–160  
100Ω  
½ LTC6253  
IN  
+
RD  
BUSY  
REFIN  
VCM  
CNVST RESET  
REFOUT  
PD  
GND OGND  
625234 TA01  
~2.08V  
0
100  
200  
300  
400  
500  
10µF  
1µF  
SAMPLE CLOCK  
FREQUENCY (kHz)  
624678 TA01b  
625234fc  
1

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