SPECIFICATIONS
At TA = full specified temperature range, single-ended input range = 1.5V to 3.5V, sampling rate = 80MHz, and external reference, unless otherwise noted.
ADS831E
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
POWER SUPPLY REQUIREMENTS
Supply Voltage: +VS
Supply Current: +IS
Power Dissipation: VDRV = 5V
VDRV = 3V
Operating
Operating
External Reference
External Reference
Internal Reference
Internal Reference
+4.75
+5.0
58
290
275
310
285
+5.25
70
350
V
mA
mW
mW
mW
mW
VDRV = 5V
VDRV = 3V
Thermal Resistance, θJA
20-Lead SSOP
115
°C/W
NOTES: (1) Spurious Free Dynamic Range refers to the magnitude of the largest harmonic. (2) dBFS means dB relative to Full Scale. (3) Two-tone
intermodulation distortion is referred to the largest fundamental tone. This number will be 6dB higher if it is referred to the magnitude of the two-tone fundamental
envelope. (4) Effective number of bits (ENOB) is defined by (SINAD – 1.76)/6.02. (5) A 50kΩ pull-down resistor is inserted internally. (6) Excludes internal
reference.
PIN DESCRIPTIONS
PIN CONFIGURATION
PIN
DESIGNATOR DESCRIPTION
Top View
SSOP
1
2
GND
Bit 1
Bit 2
Bit 3
Bit 4
Bit 5
Bit 6
Bit 7
Bit 8
CLK
Ground
Data Bit 1 (D7) (MSB)
Data Bit 2 (D6)
Data Bit 3 (D5)
Data Bit 4 (D4)
Data Bit 5 (D3)
Data Bit 6 (D2)
Data Bit 7 (D1)
Data Bit 8 (D0) (LSB)
Convert Clock
3
GND
Bit 1 (MSB)
Bit 2
1
2
3
4
5
6
7
8
9
20 VDRV
19 +VS
4
5
6
18 GND
17 IN
7
Bit 3
8
9
Bit 4
16 IN
ADS831
10
11
12
13
14
15
16
17
18
19
20
RSEL
INT/EXT
REFB
REFT
CM
Input Range Select: HI = 2V; LO = 1V
Reference Select: HI = External; LO = Internal
Bottom Reference
Top Reference
Common-Mode Voltage Output
Complementary Input
Bit 5
15 CM
Bit 6
14 REFT
13 REFB
12 INT/EXT
11 RSEL
Bit 7
IN
Bit 8 (LSB)
IN
Analog Input
GND
+VS
Ground
+5V Supply
CLK 10
VDRV
Output Logic Driver Supply Voltage
PACKAGE/ORDERING INFORMATION
PACKAGE
SPECIFIED
DRAWING
NUMBER(1)
TEMPERATURE
RANGE
PACKAGE
MARKING
ORDERING
NUMBER
TRANSPORT
MEDIA
PRODUCT
PACKAGE
ADS831E
"
20-Lead SSOP (QSOP)
"
349
"
–40°C to +85°C
ADS831E
"
ADS831E
ADS831E/1K
Rails
Tape and Reel
"
NOTES: (1) For detailed drawing and dimension table, please see end of data sheet, or Appendix C of Burr-Brown IC Data Book. For detailed Tape and Reel
mechanical information, refer to Appendix B of Burr-Brown IC Data Book.
ABSOLUTE MAXIMUM RATINGS
ELECTROSTATIC
DISCHARGE SENSITIVITY
+VS ....................................................................................................... +6V
Analog Input ............................................................. –0.3V to (+VS + 0.3V)
Logic Input ............................................................... –0.3V to (+VS + 0.3V)
Case Temperature ......................................................................... +100°C
This integrated circuit can be damaged by ESD. Burr-Brown recom-
mends that all integrated circuits be handled with
appropriate precautions. Failure to observe proper handling and
Junction Temperature .................................................................... +150°C
Storage Temperature ..................................................................... +150°C
installation procedures can cause damage.
DEMO BOARD ORDERING INFORMATION
ESD damage can range from subtle performance degradation to
PRODUCT
DEMO BOARD
complete device failure. Precision integrated circuits may be more
susceptible to damage because very small parametric changes could
cause the device not to meet its published specifications.
ADS831
DEM-ADS831E
®
3
ADS831
BB [ BURR-BROWN CORPORATION ]
