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LTC6248 Datasheet(PDF) 1 Page - Linear Technology |
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LTC6248 Datasheet(HTML) 1 Page - Linear Technology |
1 / 18 page LTC6253-7 1 62537f For more information www.linear.com/LTC6253-7 TYPICAL APPLICATION DESCRIPTION 2GHz, 3.5mA Gain of 7 Stable Rail-to-Rail I/O Dual Op Amp 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. 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. For applications that require power-down, the LTC6253-7 offers a shutdown pin which disables the amplifier and reduces current consumption to 42µA. 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. 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. FEATURES APPLICATIONS n Gain Bandwidth Product: 2GHz n –3dB Frequency (AV = 7): 160MHz n Low Quiescent Current: 3.5mA Max n High Slew Rate: 500V/µs n Input Common Mode Range Includes Both Rails n Output Swings Rail-to-Rail n Low Broadband Voltage Noise: 2.75nV/√Hz n Fast Output Recovery n Supply Voltage Range: 2.5V to 5.25V n Input Offset Voltage: 350µV Max n Large Output Current: 90mA n CMRR: 105dB n Open Loop Gain: 60V/mV n Operating Temperature Range: –40°C to 125°C n MS10 Package with Independent Shutdown Pins n Low Voltage, High Frequency Signal Processing n Driving A/D Converters n Rail-to-Rail Buffer Amplifiers n Active Filters n Battery Powered Equipment ADC Driver with Gain LTC6253–7 Driving LTC2314–14 1024 Point FFT fS = 2Msps F1 = 20.5kHz F1 AMPLITUDE = –0.916dBFS SFDR = 89dB SNR = 72dB FREQUENCY (kHz) 0 100 200 300 400 500 600 700 800 900 1000 –130 –120 –110 –100 –90 –80 –70 –60 –50 –40 –30 –20 –10 0 62537 TA01b 2.2µF 5V 2.2µF CS CS SCK SCK SDO SDO GND 625234 TA01 AIN 47pF 100 VIN = 0V TO 580mV VDD REF LTC2314-14 8-PIN TSOT OVDD 3.3V 200Ω 2.2µF 4.4V –0.7V – + ½ LTC6253-7 1.21k OUT V– V+ |
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