ADS5204-Q1 Datasheet, PDF (1/25 Pages) Texas Instruments – DUAL 10-BIT 40 MSPS LOW-POWER ANALOG-TO-DIGITAL CONVERTER WITH PGA

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ADS5204ĆQ1
SGLS271A − OCTOBER 2004 − REVISED JUNE 2008
DUAL 10ĆBIT 40 MSPS LOWĆPOWER
ANALOGĆTOĆDIGITAL CONVERTER WITH PGA
FEATURES
D Qualified for Automotive Applications
D 3.3-V Single-Supply Operation
D Dual Simultaneous Sample-and-Hold Inputs
D Differential or Single-Ended Analog Inputs
D Programmable Gain Amplifier: 0 dB to 18 dB
D Separate Serial Control Interface
D Single or Dual Parallel Bus Output
D 60-dB SNR at f_IN = 10.5 MHz
D 73-dB SFDR at f_IN = 10.5 MHz
D Low Power: 275 mW
D 300-MHz Analog Input Bandwidth
D 3.3-V TTL/CMOS-Compatible Digital I/O
D Internal or External Reference
D Adjustable Reference Input Range
D Power-Down (Standby) Mode
D TQFP-48 Package
APPLICATIONS
D Digital Communications (Baseband Sampling)
D Portable Instrumentation
D Video Processing
DESCRIPTION
The ADS5204 is a dual 10-bit, 40 MSPS analog-to-digital
converter (ADC). It simultaneously converts each analog
input signal into a 10-bit, binary coded digital word up to
a maximum sampling rate of 40 MSPS per channel. All
digital inputs and outputs are 3.3-V TTL/CMOS
compatible.
An innovative dual pipeline architecture implemented in
a CMOS process and the 3.3-V supply results in very
low power dissipation. In order to provide maximum
flexibility, both top and bottom voltage references can
be set from user-supplied voltages. Alternatively, if no
external references are available, the on-chip internal
references can be used. Both ADCs share a common
reference to improve offset and gain matching. If
external reference voltage levels are available, the
internal references can be powered down
independently from the rest of the chip, resulting in even
greater power savings.
The ADS5204 also features dual, onboard programmable
gain amplifiers (PGAs) that allow a setting of 0 dB to 18 dB
to adjust the gain of each set of inputs in order to match
the amplitude of the incoming signal.
The ADS5204 is characterized for operation from −40°C
to +85°C and is available in a TQFP-48 package.
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.
PRODUCTION DATA information is current as of publication date. Products conform to
specifications per the terms of Texas Instruments standard warranty. Production processing
does not necessarily include testing of all parameters.
Copyright  2008, Texas Instruments Incorporated