ADC14L020

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SNAS325C – JUNE 2005 – REVISED MARCH 2006

ADC14L020 14-Bit, 20 MSPS, 150 mW A/D Converter

Check for Samples: ADC14L020

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FEATURES

APPLICATIONS

2

•

Single +3.3V supply operation

•

Medical Imaging

•

Internal sample-and-hold

•

Instrumentation

•

Internal reference

•

Communications

•

Outputs 2.4V to 3.6V compatible

•

Digital Video

•

Duty Cycle Stabilizer

•

Power down mode

DESCRIPTION

The ADC14L020 is a low power monolithic CMOS analog-to-digital converter capable of converting analog input

signals into 14-bit digital words at 20 Megasamples per second (MSPS). This converter uses a differential,

pipeline architecture with digital error correction and an on-chip sample-and-hold circuit to minimize power

consumption while providing excellent dynamic performance and a 150 MHz Full Power Bandwidth. Operating on

a single +3.3V power supply, the ADC14L020 achieves 12.0 effective bits at nyquist and consumes just 150 mW

at 20 MSPS . The Power Down feature reduces power consumption to 15 mW.

single-ended input. Full use of the differential input is recommended for optimum performance. Duty cycle

stabilization and output data format are selectable using a quad state function pin. The output data can be set for

offset binary or two's complement.

To ease interfacing to lower voltage systems, the digital output driver power pins of the ADC14L020 can be

connected to a separate supply voltage in the range of 2.4V to the analog supply voltage.

This device is available in the 32-lead LQFP package and will operate over the industrial temperature range of

−40°C to +85°C. An evaluation board is available to ease the evaluation process.

Table 1. Key Specifications

VALUE

UNIT

Resolution

14

Bits

DNL

±0.5

LSB (typ)

74

dB (typ)

93

dB (typ)

Data Latency

7 Clock Cycles

Power Consumption

-- Operating

150

mW (typ)

-- Power Down Mode

15

mW (typ)

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PRODUCTION DATA information is current as of publication date.

Copyright © 2005–2006, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.