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ADS8365_14 Datasheet, PDF (1/38 Pages) Texas Instruments – 16-Bit, 250kSPS, 6-Channel, Simultaneous Sampling SAR ANALOG-TO-DIGITAL CONVERTERS
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
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