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LT6604-15

Part Number	LT6604-15
Manufacturer	Linear Technology
Description	Dual Very Low Noise Differential Amplifier and 15MHz Lowpass Filter
Published	Mar 25, 2010
Detailed Description	FEATURES n LT6604-15 Dual Very Low Noise, Differential Ampliﬁer and 15MHz Lowpass Filter DESCRIPTION www.DataSheet4U.co...
Datasheet	LT6604-15 PDF File

Overview

FEATURES n LT6604-15 Dual Very Low Noise, Differential Ampliﬁer and 15MHz Lowpass Filter DESCRIPTION www.
DataSheet4U.
com n n n n n n Dual Differential Ampliﬁer with 15MHz Lowpass Filters 4th Order Filters Approximates Chebyshev Response Guaranteed Phase and Gain Matching Resistor-Programmable Differential Gain 76dB Signal-to-Noise (3V Supply, 2VP-P Output) Low Distortion, 2VP-P, 800Ω Load, VS = 3V 1MHz: 86dBc 2nd, 90dBc 3rd 10MHz: 63dBc 2nd, 69dBc 3rd Speciﬁed for Operation with 3V, 5V and ±5V Supplies Fully Differential Inputs and Outputs Adjustable Output Common Mode Voltage Small 4mm × 7mm × 0.
75mm QFN Package The LT®6604-15 consists of two matched, fully differential ampliﬁers, each with a 4th order, 15MHz lowpass ﬁlter.
The ﬁxed frequency lowpass ﬁlter approximates a Chebyshev response.
By integrating a ﬁlter and a differential ampliﬁer, distortion and noise are made exceptionally low.
At unity gain, the measured in band signal-to-noise ratio is an impressive 76dB.
At higher gains, the input referred noise decreases, allowing the part to process smaller input differential signals without signiﬁcantly degrading the signal-to-noise ratio.
Gain and phase are highly matched between the two channels.
Gain for each channel is independently programmed using two external resistors.
The LT6604-15 enables level shifting by providing an adjustable output common mode voltage, making it ideal for directly interfacing to ADCs.
The LT6604-15 is fully speciﬁed for 3V operation.
The differential design enables outstanding performance at a 2VP-P signal level for a single 3V supply.
See the back page of this datasheet for a complete list of related single and dual differential ampliﬁers with integrated 2.
5MHz to 20MHz lowpass ﬁlters.
L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
APPLICATIONS n n n n n n n Dual Differential ADC Driver Plus Filter Single-Ended to Differential C...

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