Burr Brown Products
from Texas Instruments
AD
S8
®
365
SBAS362A – AUGUST 2006 – REVISED SEPTEMBER 2006
16-Bit, 250kSPS, 6-Channel, Simultaneous Sampling
SAR ANALOG-TO-DIGITAL CONVERTERS
FEATURES
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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
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.
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APPLICATIONS
Motor Control
Multi-Axis Positioning Systems
3-Phase Power Control
CH A0+
CH
A0-
CDAC
S/H
Amp
Comp
SAR
HOLDA
CH A1+
CH A1-
S/H
Amp
CH B0+
CH B0-
S/H
Amp
CDAC
Comp
Interface
Conversion
and
Control
CDAC
Comp
A0
A1
A2
ADD
NAP
RD
WR
CS
FD
EOC
CLK
RESET
BYTE
16
SAR
HOLDB
CH B1+
CH B1-
S/H
Amp
CH C0+
CH C0-
S/H
Amp
SAR
HOLDC
CH C1+
CH C1-
S/H
Amp
REF
IN
REF
OUT
Internal
2.5V
Reference
CDAC
Comp
FIFO
Register
and
6x
CDAC
Comp
Data
Input/Output
CDAC
Comp
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.
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, Texas Instruments Incorporated
BURR-BROWN [ BURR-BROWN CORPORATION ]
