ADS8364
ADS
836
®
4
SBAS219B – JUNE 2002 – REVISED JULY 2004
250kHz, 16-Bit, 6-Channel
Simultaneous Sampling
ANALOG-TO-DIGITAL CONVERTERS
FEATURES
q
q
q
q
q
q
q
q
6 INPUT CHANNELS
FULLY DIFFERENTIAL INPUTS
6 INDEPENDENT 16-BIT ADC
4
µ
s TOTAL THROUGHPUT PER CHANNEL
TESTED NO MISSING CODES TO 14 BITS
BUFFERED REFERENCE INPUTS
LOW POWER: 450mW
TQFP-64 PACKAGE
DESCRIPTION
The ADS8364 includes six, 16-bit, 250KHz ADCs (Analog-to-
Digital converters) with 6 fully differential input channels
grouped into two 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 provides excellent common-mode rejection of
80dB at 50KHz that is important in high-noise environments.
The ADS8364 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.
APPLICATIONS
q
MOTOR CONTROL
q
MULTI-AXIS POSITIONING SYSTEMS
q
3-PHASE POWER CONTROL
CH A0+
CH A0–
S/H
Amp
CDAC
Comp
SAR
HOLDA
CH A1+
CH A1–
S/H
Amp
CDAC
Comp
Interface
A0
A1
A2
ADD
RD
WR
CS
FD
EOC
CLK
Conversion
and
Control
CH B0+
CH B0–
S/H
Amp
CDAC
Comp
SAR
HOLDB
FIFO
Register
6x
CDAC
S/H
Amp
Comp
16
RESET
BYTE
CH B1+
CH B1–
Data
Input/Output
CH C0+
CH C0–
S/H
Amp
CDAC
Comp
SAR
HOLDC
CH C1+
CH C1–
S/H
Amp
REF
IN
REF
OUT
Internal
2.5V
Reference
Comp
CDAC
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 Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Copyright © 2002-2004, Texas Instruments Incorporated
www.ti.com
TI [ TEXAS INSTRUMENTS ]
