LTC6401-26 Series

1.6GHz Low Noise, Low Distortion Differential ADC Driver for DC-140MHz

Catalog

1.6GHz Low Noise, Low Distortion Differential ADC Driver for DC-140MHz

Part	Type	Package / Case	Mounting Type	Applications	Supplier Device Package
Analog Devices LTC6401IUD-14#PBF	ADC Driver	16-WFQFN Exposed Pad	Surface Mount	Data Acquisition	16-QFN (3x3)
Analog Devices LTC6401CUD-14#PBF	ADC Driver	16-WFQFN Exposed Pad	Surface Mount	Data Acquisition	16-QFN (3x3)
Analog Devices LTC6401IUD-26#PBF	ADC Driver	16-WFQFN Exposed Pad	Surface Mount	Data Acquisition	16-QFN (3x3)
Analog Devices LTC6401CUD-26#PBF	ADC Driver	16-WFQFN Exposed Pad	Surface Mount	Data Acquisition	16-QFN (3x3)
Analog Devices LTC6401IUD-14#TRPBF	ADC Driver	16-WFQFN Exposed Pad	Surface Mount	Data Acquisition	16-QFN (3x3)
Analog Devices LTC6401CUD-8#TRPBF	ADC Driver	16-WFQFN Exposed Pad	Surface Mount	Data Acquisition	16-QFN (3x3)
Analog Devices LTC6401CUD-26#TRPBF	ADC Driver	16-WFQFN Exposed Pad	Surface Mount	Data Acquisition	16-QFN (3x3)
Analog Devices LTC6401CUD-8#PBF	ADC Driver	16-WFQFN Exposed Pad	Surface Mount	Data Acquisition	16-QFN (3x3)

Catalog

1.6GHz Low Noise, Low Distortion Differential ADC Driver for DC-140MHz

Key Features

• 1.6GHz –3dB Bandwidth

• Fixed Gain of 20V/V (26dB)

• –85dBc IMD3 at 70MHz (Equivalent OIP3 = 46.5dBm)

• –72dBc IMD3 at 140MHz (Equivalent OIP3 = 40dBm)

• 1nV/√HzInternal Op Amp Noise

• 1.5nV/√HzTotal Input Referred Noise

• 6.8dB Noise Figure

• Differential Inputs and Outputs

• 50Ω Input Impedance

• 2.85V to 3.5V Supply Voltage

• 45mA Supply Current (135mW)

• 1V to 1.6V Output Common Mode, Adjustable

• DC- or AC-Coupled Operation

• Max Differential Output Swing 4.7VP-P

• Small 16-Lead 3mm × 3mm × 0.75mm QFN Package

Description

The LTC6401-14 is a high-speed differential amplifier targeted at processing signals from DC to 140MHz. The part has been specifically designed to drive 12-, 14- and 16-bit ADCs with low noise and low distortion, but can also be used as a general-purpose broadband gain block.The LTC6401-14 is easy to use, with minimal support circuitry required. The output common mode voltage is set using an external pin, independent of the inputs, which eliminates the need for transformers or AC-coupling capacitors in many applications. The gain is internally ﬁxed at 14dB (5V/V).The LTC6401-14 saves space and power compared to alternative solutions using IF gain blocks and transformers. The LTC6401-14 is packaged in a compact 16-lead 3mm × 3mm QFN package and operates over the –40°C to 85°C temperature range.ApplicationsDifferential ADC DriverDifferential Driver/ReceiverSingle Ended to Differential ConversionIF Sampling ReceiversSAW Filter Interfacing