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ADS8365 Datasheet Preview

ADS8365 Datasheet

Analog-to-Digital Converter

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ADS8365 ®
ADS8365
www.ti.com.................................................................................................................................................... SBAS362C – AUGUST 2006 – REVISED MARCH 2008
16-Bit, 250kSPS, 6-Channel, Simultaneous Sampling
SAR ANALOG-TO-DIGITAL CONVERTERS
FEATURES
1
2 Six Input Channels
Fully Differential Inputs
Six Independent 16-Bit ADCs
4µs Total Throughput per Channel
Low Power:
200mW in Normal Mode
5mW in Nap Mode
50µW in Power-Down Mode
TQFP-64 Package Package
APPLICATIONS
Motor Control
Multi-Axis Positioning Systems
3-Phase Power Control
DESCRIPTION
The ADS8365 includes six, 16-bit, 250kSPS
analog-to-digital converters (ADCs) with six fully
differential input channels grouped into three pairs for
high-speed simultaneous signal acquisition. Inputs to
the sample-and-hold amplifiers are fully differential
and are maintained differential to the input of the
ADC. This architecture provides excellent
common-mode rejection of 80dB at 50kHz, which is
important in high-noise environments.
The ADS8365 offers a flexible, high-speed parallel
interface with a direct address mode, a cycle, and a
FIFO mode. The output data for each channel is
available as a 16-bit word.
CH A0+
CH A0-
HOLDA
CH A1+
CH A1-
CH B0+
CH B0-
HOLDB
CH B1+
CH B1-
CH C0+
CH C0-
HOLDC
CH C1+
CH C1-
REFIN
REFOUT
S/H
Amp
CDAC
Comp
SAR
S/H
Amp
S/H
Amp
CDAC
Comp
CDAC
Comp
SAR
S/H
Amp
S/H
Amp
CDAC
Comp
CDAC
Comp
SAR
S/H
Amp
Internal
2.5V
Reference
CDAC
Comp
Interface
Conversion
and
Control
FIFO
Register
a6nxd
A0
A1
A2
ADD
NAP
RD
WR
CS
FD
EOC
CLK
RESET
BYTE
16
Data
Input/Output
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 © 2006–2008, Texas Instruments Incorporated




etcTI

ADS8365 Datasheet Preview

ADS8365 Datasheet

Analog-to-Digital Converter

No Preview Available !

ADS8365
SBAS362C – AUGUST 2006 – REVISED MARCH 2008.................................................................................................................................................... www.ti.com
This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with
appropriate precautions. Failure to observe proper handling and installation procedures can cause damage.
ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more
susceptible to damage because very small parametric changes could cause the device not to meet its published specifications.
ORDERING INFORMATION(1)
PRODUCT
MAXIMUM
INTEGRAL
LINEARITY
ERROR
(LSB)
NO
MISSING
CODES
ERROR
(LSB)
PACKAGE-
LEAD
PACKAGE
DESIGNATOR
SPECIFIED
TEMPERATURE
RANGE
PACKAGE
MARKING
ADS8365
±4
14
TQFP-64
PAG
–40°C to +85°C ADS8365AI
ORDERING
NUMBER
ADS8365IPAG
ADS8365IPAGR
TRANSPORT
MEDIA,
QUANTITY
Tray, 160
Tape and
Reel, 1500
(1) For the most current package and ordering information, see the Package Option Addendum located at the end of this data sheet, or see
the TI website at www.ti.com.
ABSOLUTE MAXIMUM RATINGS(1)
over operating free-air temperature range (unless otherwise noted)
Supply voltage, AGND to AVDD
Supply voltage, BGND to BVDD
Analog input voltage range
Reference input voltage range
Digital input voltage range
Ground voltage differences, AGND to BGND
Voltage differences, BVDD to AGND
Input current to any pin except supply
Power dissipation
Operating virtual junction temperature range, TJ
Operating free-air temperature range, TA
Storage temperature range, TSTG
ADS8365
–0.3 to 6
–0.3 to 6
AGND – 0.3 to AVDD + 0.3
AGND – 0.3 to AVDD + 0.3
BGND – 0.3 to BVDD + 0.3
±0.3
–0.3 to 6
–20 to 20
See Dissipation Ratings Table
–40 to +150
–40 to +85
–65 to +150
UNIT
V
V
V
V
V
V
V
mA
°C
°C
°C
(1) Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings
only, and functional operation of the device at these or any other conditions beyond those indicated under Recommended Operating
Conditions is not implied. Exposure to absolute-maximum rated conditions for extended periods may affect device reliability.
DISSIPATION RATINGS
BOARD
Low-K (1)
High-K (2)
PACKAGE
PAG
PAG
RθJC
8.6°C/W
8.6°C/W
RθJA
68.5°C/W
42.8°C/W
DERATING
FACTOR ABOVE
TA = +25°C
14.598mW/°C
23.364mW/°C
TA +25°C
POWER RATING
1824mW
2920mW
TA = +70°C
POWER RATING
1168mW
1869mW
TA = +85°C
POWER RATING
949mW
1519mW
(1) The JEDEC Low K (1s) board design used to derive this data was a 3-inch x 3-inch, two-layer board with 2-ounce copper traces on top
of the board.
(2) The JEDEC High K (2s2p) board design used to derive this data was a 3-inch x 3-inch, multilayer board with 1-ounce internal power and
ground planes, and 2-ounce copper traces on the top and bottom of the board.
2
Submit Documentation Feedback
Product Folder Link(s): ADS8365
Copyright © 2006–2008, Texas Instruments Incorporated



Part Number ADS8365
Description Analog-to-Digital Converter
Maker etcTI
Total Page 3 Pages
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ADS8365 Datasheet PDF





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