FEATURES

• Single +1.9V ±0.1V Operation

• Interleave Mode for 2x Sample Rate

• Multiple ADC Synchronization Capability

• Adjustment of Input Full-Scale Range, Clock

Phase, and Offset

• Choice of SDR or DDR Output Clocking

• 1:1 or 1:2 Selectable Output Demux

• Second DCLK Output

• Duty Cycle Corrected Sample Clock

• Test Pattern

APPLICATIONS

• Direct RF Down Conversion

• Digital Oscilloscopes

• Satellite Set-top boxes

• Communications Systems

• Test Instrumentation

KEY SPECIFICATIONS

• Resolution: 8 Bits

• Max Conversion Rate: 1.5 GSPS (max)

• Code Error Rate: 10-18 (typ)

• ENOB @ 748 MHz Input: 7.4 Bits (typ)

• DNL: ±0.15 LSB (typ)

• Power Consumption (Non-DES Mode)

– Operating in Non-Demux Mode:1.6 W (typ)

– Operating in 1:2 Demux Mode: 2.0 W (typ)

– Power Down Mode: 3.5 mW (typ)

DESCRIPTION

The ADC08D1520 is a dual, low power, high

performance CMOS analog-to-digital converter that

builds upon the ADC08D1500 platform. The

ADC08D1520 digitizes signals to 8 bits of resolution

at sample rates up to 1.7 GSPS. It has expanded

features compared to the ADC08D1500, which

include a test pattern output for system debug, a

clock phase adjust, and selectable output

demultiplexer modes. Consuming a typical 1.6 Watts

in Non-Demultiplex Mode at 1.0 GSPS from a single

1.9 Volt supply, this device is guaranteed to have no missing codes over the full operating temperature

range. The unique folding and interpolating

architecture, the fully differential comparator design,

the innovative design of the internal sample-and-hold

amplifier and the self-calibration scheme enable a very flat response of all dynamic parameters beyond

Nyquist, producing a high 7.4 Effective Number of

Bits (ENOB) with a 748 MHz input signal and a 1.5

GHz sample rate while providing a 10-18 Code Error

Rate (C.E.R.) Output formatting is offset binary and

the Low Voltage Differential Signaling (LVDS) digital

outputs are compatible with IEEE 1596.3-1996, with

the exception of an adjustable common mode voltage

between 0.8V and 1.2V.

Each converter has a selectable output demultiplexer

which feeds two LVDS buses. If the 1:2

Demultiplexed Mode is selected, the output data rate

is reduced to half the input sample rate on each bus.

When Non-Demultiplexed Mode is selected, the

output data rate on channels DI and DQ is at the

same rate as the input sample clock. The two

converters can be interleaved and used as a single 3

GSPS ADC.

The converter typically consumes less than 3.5 mW

in the Power Down Mode and is available in a leaded

or lead-free, 128-pin, thermally enhanced, HLQFP

and operates over the Industrial (-40°C ≤ TA ≤ +85°C)

temperature range.