ADS7831 Burr-Brown Corporation, ADS7831 Datasheet - Page 3

• Manufacturer Part Number: ADS7831
• Description: 12-Bit 600kHz Sampling CMOS ANALOG-to-DIGITAL CONVERTER
• Manufacturer: Burr-Brown Corporation

BLOCK DIAGRAM
The information provided herein is believed to be reliable; however, BURR-BROWN assumes no responsibility for inaccuracies or omissions. BURR-BROWN assumes
no responsibility for the use of this information, and all use of such information shall be entirely at the user’s own risk. Prices and specifications are subject to change
without notice. No patent rights or licenses to any of the circuits described herein are implied or granted to any third party. BURR-BROWN does not authorize or warrant
any BURR-BROWN product for use in life support devices and/or systems.
ABSOLUTE MAXIMUM RATINGS
Analog Inputs: V
Ground Voltage Differences: DGND, AGND1, AGND2 ................... 0.3V
+V
+V
+V
–V
Digital Inputs ............................................................. –0.3V to +V
Maximum Junction Temperature ................................................... +165 C
Internal Power Dissipation ............................................................. 825mW
Lead Temperature (soldering, 10s) ................................................ +300 C
ANA
ANA
DIG
DIG
to +V
.................................................................................................... +7V
...................................................................................................... 7V
.................................................................................................... –7V
ANA
2.5V Ref Out
±2.5V Input
REF ..................................... +V
CAP ........................................... Indefinite Short to AGND2
................................................................................... +0.3V
IN
.............................................................................. 25V
Cap
575
2.5k
18k
Clock
ANA
Momentary Short to +V
+0.3V to AGND2 –0.3V
Buffer
4.8k
8.6k
CDAC
DIG
Successive Approximation Register and Control Logic
+0.3V
ANA
Internal
Ref
3
NOTE: (1) For detailed drawing and dimension table, please see end of data
sheet, or Appendix D of Burr-Brown IC Data Book.
Electrostatic discharge can cause damage ranging from
performance degradation to complete device failure. Burr-
Brown Corporation recommends that all integrated circuits be
handled and stored using appropriate ESD protection
methods.
PACKAGE AND ORDERING INFORMATION
MODEL
ADS7831P
ADS7831U
Comparator
ELECTROSTATIC
DISCHARGE SENSITIVITY
28-Pin Plastic DIP
28-Pin SOIC
PACKAGE
Latches
Drivers
Output
Three
State
and
ADS7831
Parallel
BUSY
Three
State
PACKAGE DRAWING
Data
Bus
NUMBER
246
217
(1)
®