ADC12L080 Datasheet, PDF(1/23 Page) National Semiconductor (TI) – 12-Bit, 80 MSPS, 450 MHz Bandwidth A/D Converter with Internal Reference

English

English German Russian Spanish Italian Polish Chinese Japanese Korean French Portuguese	Language :

ADC12L080 Datasheet, PDF (1/23 Pages) National Semiconductor (TI) – 12-Bit, 80 MSPS, 450 MHz Bandwidth A/D Converter with Internal Reference

October 2004

ADC12L080

12-Bit, 80 MSPS, 450 MHz Bandwidth A/D Converter with

Internal Reference

General Description

The ADC12L080 is a monolithic CMOS analog-to-digital con-

verter capable of converting analog input signals into 12-bit

digital words at 80 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 die size and power consumption while providing

excellent dynamic performance. The ADC12L080 can be

operated with either the internal or an external reference.

Operating on a single 3.3V power supply, this device con-

sumes just 425 mW at 80 MSPS, including the reference

current. The Power Down feature reduces power consump-

tion to just 50 mW.

The differential inputs provide a full scale input swing equal

to Â±VREF. The buffered, high impedance, single-ended ex-

ternal reference input is converted on-chip to a differential

reference for use by the processing circuitry. Output data

format may be selected as either offset binary or twoâs

complement.

This device is available in the 32-lead LQFP package and

operates over the industrial temperature range of â40ËC to

+85ËC.

Features

n Single supply operation

n Low power consumption

n Power down mode

n Internal or external reference

n Selectable Offset Binary or 2âs Complement data format

n Pin-compatible with ADC12010, ADC12020, ADC12040,

ADC12L063, ADC12L066

Key Specifications

n Full Power Bandwidth

n DNL

n SNR (fIN = 10 MHz)

n SFDR (fIN = 10 MHz)

n Power Consumption, 80 MHz

â Operating

â Power Down

450 MHz

Â±0.4 LSB (typ)

66 dB (typ)

80 dB (typ)

425 mW (typ)

50 mW (typ)

Applications

n Ultrasound and Imaging

n Instrumentation

n Cellular Base Stations/Communication Receivers

n Sonar/Radar

n xDSL

n Wireless Local Loops

n Data Acquisition Systems

n DSP Front Ends

Connection Diagram

TRI-STATEÂ® is a registered trademark of National Semiconductor Corporation.

20061001

www.national.com

▷