ADS
836
1
ADS8361
AD
S83
61
SBAS230E – AUGUST 2002 – REVISED AUGUST 2007
Dual, 500kSPS, 16-Bit, 2 + 2 Channel,
Simultaneous Sampling
ANALOG-TO-DIGITAL CONVERTER
FEATURES
●
2 SIMULTANEOUS 16-BIT DACs
●
4 FULLY DIFFERENTIAL INPUT CHANNELS
●
2
μ
s THROUGHPUT PER CHANNEL
●
4
μ
s TOTAL THROUGHPUT FOR FOUR CHANNELS
●
LOW POWER: 150mW
●
INTERNAL REFERENCE
●
FLEXIBLE SERIAL INTERFACE
●
16-BIT UPGRADE TO THE 12-BIT ADS7861
●
PIN COMPATIBLE WITH THE ADS7861
●
OPERATING TEMPERATURE RANGE:
–40
°
C to +125
°
C
DESCRIPTION
The ADS8361 is a dual, 16-bit, 500kSPS, Analog-to-Digital
(A/D) converter with four 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 differentially to the input of the A/D con-
verter. This provides excellent common-mode rejection of
80dB at 50kHz, which is important in high-noise environments.
The ADS8361 offers a high-speed, dual serial interface and
control inputs to minimize software overhead. The output data
for each channel is available as a 16-bit word. The ADS8361
is offered in SSOP-24 and QFN-32 (5x5) packages and is fully
specified over the –40°C to +125°C operating range.
APPLICATIONS
●
MOTOR CONTROL
●
MULTI-AXIS POSITIONING SYSTEMS
●
3-PHASE POWER CONTROL
CH A0+
CH A0–
SAR
SHA
CDAC
CH A1+
CH A1–
COMP
SERIAL DATA A
SERIAL DATA B
M0
REF
IN
REF
OUT
Internal
2.5V
Reference
Serial
Interface
M1
A0
CLOCK
CS
CH B0+
CH B0–
SHA
CDAC
COMP
RD
BUSY
CONVST
CH B1+
CH B1–
SAR
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 © 2002-2007, Texas Instruments Incorporated
www.ti.com
TI [ TEXAS INSTRUMENTS ]
