LTC6605-14 Series

Dual Matched 10MHz Filter with Low Noise, Low Distortion Differential Amplifier

Catalog

Dual Matched 10MHz Filter with Low Noise, Low Distortion Differential Amplifier

Part	Number of Filters	Filter Type	Voltage - Supply [Max]	Voltage - Supply [Min]	Filter Order	Package / Case	Supplier Device Package	Mounting Type	Frequency - Cutoff or Center
Analog Devices LTC6605CDJC-10#PBF	2	Antialiasing	5.25 V	2.7 V	2nd	22-WFDFN Exposed Pad	22-DFN (6x3)	Surface Mount	5 MHz
Analog Devices LTC6605CDJC-10#TRPBF	2	Antialiasing	5.25 V	2.7 V	2nd	22-WFDFN Exposed Pad	22-DFN (6x3)	Surface Mount	5 MHz
Analog Devices LTC6605IDJC-7#PBF	2	Antialiasing	5.25 V	2.7 V	2nd	22-WFDFN Exposed Pad	22-DFN (6x3)	Surface Mount	5 MHz
Analog Devices LTC6605CDJC-7#PBF	2	Antialiasing	5.25 V	2.7 V	2nd	22-WFDFN Exposed Pad	22-DFN (6x3)	Surface Mount	5 MHz
Analog Devices LTC6605CDJC-14#PBF	2	Antialiasing	5.25 V	2.7 V	2nd	22-WFDFN Exposed Pad	22-DFN (6x3)	Surface Mount	5 MHz

Catalog

Dual Matched 10MHz Filter with Low Noise, Low Distortion Differential Amplifier

Key Features

• Two Matched 14MHz 2nd Order Lowpass Filters with Differential AmplifiersGain Match: ±0.25dB Max, PassbandPhase Match: ±1.1° Max, PassbandSingle-Ended or Differential Inputs

• Gain Match: ±0.25dB Max, Passband

• Phase Match: ±1.1° Max, Passband

• Single-Ended or Differential Inputs

• < –84dBc Distortion in Passband

• 2.1nV/√HzOp Amp Noise Density

• Pin-Selectable Gain (0dB/6dB/9.5dB)

• Pin-Selectable Power Consumption (0.35mA/16.2mA/33.1mA)

• Rail-to-Rail Output Swing

• 2.7V to 5.25V Supply Voltage

• Small 22-Pin 6mm × 3mm × 0.75mm DFN Package

Description

The LTC6605-14 contains two independent, fully differential amplifiers configured as matched 2nd order 14MHz lowpass filters. The f–3dBof the filters is adjustable in the range of 12.4MHz to 20MHz and 25MHz.The internal op amps are fully differential, feature very low noise and distortion, and are compatible with 16-bit dynamic range systems. The inputs can accept single ended or differential signals. An input pin is provided for each amplifier to set the common mode level of the differential outputs.Internal laser-trimmed resistors and capacitors determine a precise, very well matched (in gain and phase) 14MHz 2nd order filter response. A single optional external resistor per channel can tailor the frequency response for each amplifier.Three-state BIAS pins determine each amplifier’s power consumption, allowing a choice between shutdown, medium power or full power.The LTC6605-14 is available in a compact 6mm × 3mm 22-pin leadless DFN package and operates over a –40°C to 85°C temperature range.ApplicationsBroadband Wireless ADC Driver/FilterAntialiasing FilterSingle-Ended to Differential ConversionDAC Smoothing FilterZero-IF Direct Conversion Receivers