AD9434 Series

12-Bit, 370 MSPS/500 MSPS, 1.8 V Analog-to-Digital Converter

Catalog

12-Bit, 370 MSPS/500 MSPS, 1.8 V Analog-to-Digital Converter

Part	Data Interface	Utilized IC / Part	Power (Typ) @ Conditions	Number of Bits	Supplied Contents	Input Range	Sampling Rate (Per Second)	Number of A/D Converters	Ratio - S/H:ADC	Architecture	Voltage - Supply, Digital [Max]	Voltage - Supply, Digital [Min]	Voltage - Supply, Analog [Min]	Voltage - Supply, Analog [Max]	Configuration	Number of Inputs	Supplier Device Package	Operating Temperature [Max]	Operating Temperature [Min]	Input Type	Package / Case	Mounting Type	Reference Type	Features
Analog Devices AD9434-500EBZ	SPI	AD9434	690 mW	12 bits	Board(s)	1.5 Vpp	500 M	1
Analog Devices AD9434BCPZRL7-370	LVDS - Parallel			12 bits			370 M	1	1:1	Pipelined	1.9 V	1.75 V	1.75 V	1.9 V	S/H-ADC	1	56-LFCSP-VQ (8x8)	85 °C	-40 °C	Differential	56-VFQFN Exposed Pad CSP	Surface Mount	External Internal
Analog Devices AD9434BCPZRL7-500	LVDS - Parallel			12 bits			500 M	1	0:1	Pipelined	1.9 V	1.75 V	1.75 V	1.9 V	ADC	1	56-LFCSP (8x8)	85 °C	-40 °C	Differential	56-VFQFN Exposed Pad CSP	Surface Mount	External Internal	Internal Oscillator
Analog Devices AD9434BCPZ-500	LVDS - Parallel			12 bits			500 M	1	1:1	Pipelined	1.9 V	1.75 V	1.75 V	1.9 V	S/H-ADC	1	56-LFCSP-VQ (8x8)	85 °C	-40 °C	Differential	56-VFQFN Exposed Pad CSP	Surface Mount	External Internal

Catalog

12-Bit, 370 MSPS/500 MSPS, 1.8 V Analog-to-Digital Converter

Key Features

• SNR = 65 dBFS at fINup to 250 MHz at 500 MSPS

• ENOB of 10.5 bits at fINup to 250 MHz at 500 MSPS (−1.0 dBFS)

• SFDR = −78 dBc at fINup to 250 MHz at 500 MSPS (−1.0 dBFS)

• Integrated input buffer

• Excellent linearityDNL = ±0.5 LSB typicalINL = ±0.6 LSB typical

• DNL = ±0.5 LSB typical

• INL = ±0.6 LSB typical

• LVDS at 500 MSPS (ANSI-644 levels)

• 1 GHz full power analog bandwidth

• On-chip reference, no external decoupling required

• Low power dissipation690 mW at 500 MSPS—LVDS SDR mode660 mW at 500 MSPS—LVDS DDR mode

• 690 mW at 500 MSPS—LVDS SDR mode

• 660 mW at 500 MSPS—LVDS DDR mode

• Programmable (nominal) input voltage range1.18 V p-p to 1.6 V p-p, 1.5 V p-p nominal

• 1.18 V p-p to 1.6 V p-p, 1.5 V p-p nominal

• 1.8 V analog and digital supply operation

• Selectable output data format (offset binary, twos complement, Gray code)

• Clock duty cycle stabilizer

• Integrated data clock output with programmable clock and data alignment

Description

The AD9434 is a 12-bit monolithic sampling analog-to-digital converter (ADC) optimized for high performance, low power, and ease of use. The part operates at up to a 500 MSPS conversion rate and is optimized for outstanding dynamic performance in wideband carrier and broadband systems. All necessary functions, including a sample-and-hold and voltage reference, are included on the chip to provide a complete signal conversion solution. The VREF pin can be used to monitor the internal reference or provide an external voltage reference (external reference mode must be enabled through the SPI port).The ADC requires a 1.8 V analog voltage supply and a differential clock for full performance operation. The digital outputs are LVDS (ANSI-644) compatible and support twos complement, offset binary format, or Gray code. A data clock output is available for proper output data timing.Fabricated on an advanced BiCMOS process, the AD9434 is available in a 56-lead LFCSP, specified over the industrial temperature range (−40°C to +85°C). This part is protected under a U.S. patent.APPLICATIONSWireless and wired broadband communicationsCable reverse pathCommunications test equipmentRadar and satellite subsystemsPower amplifier linearizationPRODUCT HIGHLIGHTSHigh Performance.Maintains 65 dBFS SNR at 500 MSPS with a 250 MHz input.Low Power.Consumes only 660 mW at 500 MSPS.Ease of Use.LVDS output data and output clock signal allow interface to current FPGA technology. The on-chip reference and sample and hold provide flexibility in system design. Use of a single 1.8 V supply simplifies system power supply design.Serial Port Control.Standard serial port interface supports various product functions, such as data formatting, power-down, gain adjust, and output test pattern generation.The AD9434 is pin compatible with theAD9230, and can be substituted in many applications with minimal design changes.