LTC6403-1 200MHz, Low Noise, Low Power Fully Differential Input/Output Amplifier/Driver FEATURESDESCRIPTION n Very Low Distortion: (2VP-P, 3MHz): –95dBc The LTC®6403-1 is a precision, very low noise, low dis- n Fully Differential Input and Output tortion, fully differential input/output amplifier optimized n Low Noise: 2.8nV/√Hz Input-Referred for 3V to 5V, single supply operation. The LTC6403-1 is n 200MHz Gain-Bandwidth Product unity gain stable. The LTC6403-1 closed-loop bandwidth n Built-In Clamp: Fast Overdrive Recovery extends from DC to 200MHz. In addition to the normal n Slew Rate: 200V/µs unfiltered outputs (+OUT and –OUT), the LTC6403-1 has a n Adjustable Output Common Mode Voltage built-in 44.2MHz differential single-pole lowpass filter and n Rail-to-Rail Output Swing an additional pair of filtered outputs (+OUTF, and –OUTF). n Input Range Extends to Ground An input referred voltage noise of 2.8nV/√Hz enables the n Large Output Current: 60mA (Typ) LTC6403-1 to drive state-of-the-art 14- to 18-bit ADCs n DC Voltage Offset <1.5mV (Max) while operating on the same supply voltage, saving system n 10.8mA Supply Current cost and power. The LTC6403-1 maintains its performance n 2.7V to 5.25V Supply Voltage Range for supplies as low as 2.7V. It draws only 10.8mA, and n Low Power Shutdown has a hardware shutdown feature which reduces current n Tiny 3mm × 3mm × 0.75mm 16-Pin QFN Package consumption to 170µA. APPLICATIONS The LTC6403-1 is available in a compact 3mm × 3mm 16-pin leadless QFN package and operates over a –40°C to 125°C temperature range. n Differential Input A/D Converter Driver L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Analog n Single-Ended to Differential Conversion/Amplification Devices, Inc. All other trademarks are the property of their respective owners. n Common Mode Level Translation n Low Voltage, Low Noise, Signal Processing TYPICAL APPLICATIONSingle-Ended Input to Differential OutputWith Common Mode Level ShiftingHarmonic Distortion vs Frequency –30 2V SINGLE-ENDED INPUT P-P –40 VS = 3V 0V VOCM = VICM = 1.5V R V –50 F = RI = 402Ω S 50Ω 392Ω 402Ω RLOAD = 800Ω –60 VOUTDIFF = 2VP-P 3V 0.1µF –70 54.9Ω SECOND SIGNAL 1V –80 P-P GENERATOR THIRD + 1.5V DISTORTION (dBc) –90 VOCM LTC6403-1 –100 0.01µF – 1.5V –110 1VP-P –120 1 10 100 64031 TA01 FREQUENCY (MHz) 422Ω 402Ω 64031 TA01b 64031fb For more information www.linear.com/LTC6403-1 1
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