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ADS5122 Datasheet(PDF) 1 Page - Texas Instruments

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Part No. ADS5122
Description  8-Channel, 10-Bit, 65MSPS, 1.8V CMOS ANALOG-TO-DIGITAL CONVERTER
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Maker  TI [Texas Instruments]
Homepage  http://www.ti.com
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ADS5122 Datasheet(HTML) 1 Page - Texas Instruments

 
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ADS5122
SBAS272B – MAY 2003 – REVISED JUNE 2004
www.ti.com
DESCRIPTION
The ADS5122 is a low-power, 8-channel, 10-bit, 65MSPS
CMOS Analog-to-Digital Converter (ADC) that operates from
a single 1.8V supply, while offering 1.8V and 3.3V digital I/O
flexibility. A single-ended input clock is used for simultaneous
sampling of up to eight analog differential input channels. The
flexible duty cycle adjust circuit (DCASEL) allows the use of a
non-50% clock duty cycle. Individual standby pins allow users
the ability to power-down any number of ADCs.
The internal reference can be bypassed to use an external
reference to suit the accuracy and temperature drift require-
ments of the application. A 10-bit parallel bus on eight chan-
nels is provided with 3-state outputs.
The speed, resolution, and low power of the ADS5122 make
it ideal for applications requiring high-density signal process-
ing in low-power environments.
The ADS5122 is characterized for operation from 0
°C to 70°C.
FEATURES
q 8 DIFFERENTIAL ANALOG INPUTS
q 1V
PP DIFFERENTIAL INPUT RANGE
q INT/EXT VOLTAGE REFERENCE
q ANALOG/DIGITAL SUPPLY: 1.8V
q DIGITAL I/O SUPPLY: 1.8V/3.3V
q DIFFERENTIAL NONLINEARITY:
±0.4LSB
q INTEGRAL NONLINEARITY:
±1.0LSB
q SIGNAL-TO-NOISE: 59dB at f
IN = 20MHz
q POWER DISSIPATION: 733mW
q INDIVIDUAL CHANNEL POWER-DOWN
q 257-LEAD, 0.8 BALL PITCH, PLASTIC
MicroSTAR BGA™ (16mm • 16mm)
Copyright © 2003-2004, Texas Instruments Incorporated
8-Channel, 10-Bit, 65MSPS, 1.8V
CMOS ANALOG-TO-DIGITAL CONVERTER
MicroSTAR BGA is a trademark of Texas Instruments. All other trademarks are the property of their respective owners.
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.
10-Bit
ADC
3-State
Output
Buffers
D[9:0]
A
10-Bit
ADC
3-State
Output
Buffers
D[9:0]
H
DCASEL
AINA+
CLK
AINA–
AINH–
AINH+
IREFR
AV
DD
STBY
OE
DRV
DD
DV
DD
Internal
Reference
Circuit
CM
AGND
DRVGND DGND
BG
PDREF REFT REFB
CML
APPLICATIONS
q PORTABLE ULTRASOUND
q PORTABLE INSTRUMENTATION
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.
ADS
5122


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