ADS824_09 Datasheet, PDF (1/13 Pages) Texas Instruments – ANALOG-TO-DIGITAL CONVERTER

ADS824
ADS824E
SBAS076A – MAY 2001
TM _{10-Bit, 70MHz Sampling}
ANALOG-TO-DIGITAL CONVERTER
FEATURES
q HIGH SNR: 59dB
q HIGH SFDR: 70dB
q LOW POWER: 315mW
q INTERNAL/EXTERNAL REFERENCE OPTION
q SINGLE-ENDED OR DIFFERENTIAL ANALOG
INPUT
q PROGRAMMABLE INPUT RANGE:
1Vp-p or 2Vp-p
q LOW DNL: 0.3LSB
q SINGLE +5V SUPPLY OPERATION
q +3V DIGITAL OUTPUT CAPABILITY
q POWER DOWN: 20mW
q SSOP-28 PACKAGE
APPLICATIONS
q MEDICAL IMAGING
q HDTV VIDEO DIGITIZING
q COMMUNICATIONS
q TEST EQUIPMENT
+V_S
ADS824
DESCRIPTION
The ADS824 is a pipeline, CMOS Analog-to-Digital (A/D) converter
that operates from a single +5V power supply. This converter provides
excellent performance with a single-ended input and can be operated
with a differential input for added spurious performance. This high
performance converter includes a 10-bit quantizer, high bandwidth
track/hold, and a high accuracy internal reference. It also allows for the
user to disable the internal reference and utilize external references.
This external reference option provides excellent gain and offset
matching when used in multi-channel applications or in applications
where full scale range adjustment is required.
The ADS824 employs digital error correction techniques to provide
excellent differential linearity for demanding imaging applications.
Its low distortion and high SNR give the extra margin needed for
medical imaging, communications, video, and test instrumentation.
The ADS824 offers power dissipation of 315mW and also provides
a power-down mode, thus reducing power dissipation to only 20mW.
The ADS824 is specified at a maximum sampling frequency of
70MHz and a single-ended input range of 1.5V to 3.5V. The ADS824
is available in an SSOP-28 package and is pin compatible with the
10-bit, 40MHz ADS822 and the 10-bit, 60MHz ADS823.
CLK
Timing
Circuitry
VDRV
V_IN
IN
IN
T/H
10-Bit
Pipelined
A/D Core
Error
Correction
Logic
D0
3-State
Outputs
•••
D9
CM
Internal
Reference
Optional External
Reference
Int/Ext
PD OE
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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.
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