GENERAL DESCRIPTION

The AD9639 is a quad, 12-bit, 210 MSPS analog-to-digital converter (ADC) with an on-chip temperature sensor and a high speed serial interface. It is designed to support the digitizing of high frequency, wide dynamic range signals with an input bandwidth of up to 780 MHz. The output data is serialized and presented in packet format, consisting of channel-specific information, coded samples, and error code correction.

FEATURES

4 ADCs in one package

JESD204 coded serial digital outputs

On-chip temperature sensor

−95 dB channel-to-channel crosstalk

SNR: 65 dBFS with AIN = 85 MHz at 210 MSPS

SFDR: 77 dBc with AIN = 85 MHz at 210 MSPS

Excellent linearity

DNL: ±0.28 LSB (typical)

INL: ±0.7 LSB (typical)

780 MHz full power analog bandwidth

Power dissipation: 325 mW per channel at 210 MSPS

1.25 V p-p input voltage range, adjustable up to 1.5 V p-p

1.8 V supply operation

Clock duty cycle stabilizer

Serial port interface features

Power-down modes

Digital test pattern enable

Programmable header

Programmable pin functions (PGMx, PDWN)

APPLICATIONS

Communication receivers

Cable head end equipment/M-CMTS

Broadband radios

Wireless infrastructure transceivers

Radar/military-aerospace subsystems

Test equipment