GENERAL DESCRIPTION

The AD9246 is a monolithic, single 1.8 V supply, 14-bit, 80 MSPS/105 MSPS/125 MSPS analog-to-digital converter (ADC), featuring a high performance sample-and-hold amplifier (SHA) and on-chip voltage reference. The product uses a multistage differential pipeline architecture with output error correction logic to provide 14-bit accuracy at 125 MSPS data rates and guarantees no missing codes over the full operating temperature range.

FEATURES

1.8 V analog supply operation

1.8 V to 3.3 V output supply

SNR = 71.7 dBc (72.7 dBFS) to 70 MHz input

SFDR = 85 dBc to 70 MHz input

Low power: 395 mW @ 125 MSPS

Differential input with 650 MHz bandwidth

On-chip voltage reference and sample-and-hold amplifier

DNL = ±0.4 LSB

Flexible analog input: 1 V p-p to 2 V p-p range

Offset binary, Gray code, or twos complement data format

Clock duty cycle stabilizer

Data output clock

Serial port control

Built-in selectable digital test pattern generation

Programmable clock and data alignment

APPLICATIONS

Ultrasound equipment

IF sampling in communications receivers

IS-95, CDMA-One, IMT-2000

Battery-powered instruments

Hand-held scopemeters

Low cost digital oscilloscopes