ADC14L040_14 Datasheet, PDF (1/33 Pages) Texas Instruments – 14-Bit, 40 MSPS, 235 mW A/D Converter

ADC14L040
www.ti.com
SNAS311A – JUNE 2005 – REVISED APRIL 2006
ADC14L040 14-Bit, 40 MSPS, 235 mW A/D Converter
Check for Samples: ADC14L040
FEATURES
1
•2 Single +3.3V supply operation
• Internal sample-and-hold
• Internal reference
• Outputs 2.4V to 3.6V compatible
• Duty Cycle Stabilizer
• Power down mode
APPLICATIONS
• Medical Imaging
• Instrumentation
• Communications
• Digital Video
DESCRIPTION
The ADC14L040 is a low power monolithic CMOS analog-to-digital converter capable of converting analog input
signals into 14-bit digital words at 40 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 ADC14L040 achieves 11.9 effective bits at nyquist and consumes just 235 mW
at 40 MSPS . The Power Down feature reduces power consumption to 15 mW.
The differential inputs provide a full scale differential input swing equal to 2 times V_REF with the possibility of a
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 ADC14L040 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.
Resolution
DNL
SNR (f_IN = 10 MHz)
SFDR (f_IN = 10 MHz)
Data Latency
Power Consumption
-- Operating
-- Power Down Mode
Table 1. Key Specifications
VALUE
14
±0.5
74
90
7 Clock Cycles
UNIT
Bits
LSB (typ)
dB (typ)
dB (typ)
235
mW (typ)
15
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 © 2005–2006, Texas Instruments Incorporated