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1FEATURES

2? 1 GHz Full Power Bandwidth

? Internal Reference and Sample-and-Hold

Circuit

? Low Power Consumption

? Data Ready Output Clock

? Clock Duty Cycle Stabilizer

? Single +3.0V or +3.3V Supply Operation sample?

Power-Down Mode

? 32-pin WQFN Package, (5x5x0.8mm, 0.5mm

pin-pitch)

APPLICATIONS

? High IF Sampling Receivers

? Wireless Base Station Receivers

? Test and Measurement Equipment

? Communications Instrumentation

? Portable Instrumentation

KEY SPECIFICATIONS

? Resolution: 14 Bits

? Conversion Rate: 105 MSPS

? SNR (fIN = 240 MHz): 71 dBFS (typ)

? SFDR (fIN = 240 MHz): 82 dBFS (typ)

? Full Power Bandwidth: 1 GHz (typ)

? Power Consumption

– 350 mW (typ, VA=3.0V)

– 400 mW (typ, VA=3.3V)

DESCRIPTION

The ADC14C105 is a high-performance CMOS

analog-to-digital converter capable of converting

analog input signals into 14-bit digital words at rates

up to 105 Mega Samples Per Second (MSPS). This

converter uses a differential, pipelined architecture

with digital error correction and an on-chip sampleand-

hold circuit to minimize power consumption and

the external component count, while providing

excellent dynamic performance. A unique sample?

and-hold stage yields a full-power bandwidth of 1

GHz. The ADC14C105 may be operated from a single +3.0V or +3.3V power supply and consumes

low power.

A separate +2.5V supply may be used for the digital

output interface which allows lower power operation

with reduced noise. A power-down feature reduces

the power consumption to very low levels while still

allowing fast wake-up time to full operation. The

differential inputs accept a 2V full scale differential

input swing. A stable 1.2V internal voltage reference

is provided, or the ADC14C105 can be operated with

an external 1.2V reference. Output data format (offset

binary versus 2's complement) and duty cycle

stabilizer are pin-selectable. The duty cycle stabilizer

maintains performance over a wide range of clock

duty cycles.

The ADC14C105 is available in a 32-lead WQFN

package and operates over the industrial temperature

range of ?40°C to +85°C.