ADC12L080_14 Datasheet, PDF (1/28 Pages) Texas Instruments – 12-Bit, 80 MSPS, 450 MHz Bandwidth A/D Converter with Internal Reference

ADC12L080
www.ti.com
SNAS200A – OCTOBER 2004 – REVISED OCTOBER 2004
ADC12L080 12-Bit, 80 MSPS, 450 MHz Bandwidth A/D Converter with Internal Reference
Check for Samples: ADC12L080
FEATURES
1
•2 Single supply operation
• Low power consumption
• Power down mode
• Internal or external reference
• Selectable Offset Binary or 2's Complement
data format
• Pin-compatible with ADC12010, ADC12020,
ADC12040, ADC12L063, ADC12L066
APPLICATIONS
• Ultrasound and Imaging
• Instrumentation
• Cellular Base Stations/Communication
Receivers
• Sonar/Radar
• xDSL
• Wireless Local Loops
• Data Acquisition Systems
• DSP Front Ends
DESCRIPTION
The ADC12L080 is a monolithic CMOS analog-to-digital converter 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 consumes just 425 mW at
80 MSPS, including the reference current. The Power Down feature reduces power consumption to just 50 mW.
The differential inputs provide a full scale input swing equal to ±V_REF. The buffered, high impedance, single-
ended external 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 two's complement.
This device is available in the 32-lead LQFP package and operates over the industrial temperature range of
−40°C to +85°C.
Full Power Bandwidth
DNL
SNR (f_IN = 10 MHz)
SFDR (f_IN = 10 MHz)
Power Consumption, 80 MHz
Table 1. Key Specifications
VALUE
450
±0.4
66
80
Operating
425
Power Down 50
UNIT
MHz
LSB (typ)
dB (typ)
dB (typ)
mW (typ)
mW (typ)
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
All trademarks are the property of their respective owners.
2
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2004, Texas Instruments Incorporated