ADS8364_16 Datasheet, PDF (1/27 Pages) Texas Instruments – 250kSPS, 16-Bit, 6-Channel Simultaneous Sampling ANALOG-TO-DIGITAL CONVERTERS

ADS8364 ®
ADS8364
SBAS219C – JUNE 2002 – REVISED AUGUST 2006
250kSPS, 16-Bit, 6-Channel
Simultaneous Sampling
ANALOG-TO-DIGITAL CONVERTERS
FEATURES
q 6 INPUT CHANNELS
q FULLY DIFFERENTIAL INPUTS
q 6 INDEPENDENT 16-BIT ADC
q 4µs TOTAL THROUGHPUT PER CHANNEL
q TESTED NO MISSING CODES TO 14 BITS
q BUFFERED REFERENCE INPUTS
q LOW POWER: 450mW
q TQFP-64 PACKAGE
APPLICATIONS
q MOTOR CONTROL
q MULTI-AXIS POSITIONING SYSTEMS
q 3-PHASE POWER CONTROL
CH A0+
CH A0–
DESCRIPTION
The ADS8364 includes six, 16-bit, 250kSPS 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.
S/H
Amp
CDAC
Comp
HOLDA
CH A1+
CH A1–
CH B0+
CH B0–
HOLDB
CH B1+
CH B1–
CH C0+
CH C0–
S/H
Amp
S/H
Amp
S/H
Amp
S/H
Amp
SAR
CDAC
Comp
CDAC
Comp
SAR
CDAC
CDAC
Comp
Comp
Interface
Conversion
and
Control
FIFO
Register
6x
A0
A1
A2
ADD
RD
WR
CS
FD
EOC
CLK
RESET
BYTE
16
Data
Input/Output
HOLDC
CH C1+
CH C1–
REF_IN
REF_OUT
S/H
Amp
Internal
2.5V
Reference
SAR
CDAC
Comp
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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.
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