SPECIFICATIONS
(CONT)
At T
A
= –40°C to +85°C, f
S
= 40kHz, V
S
= +5V
±5%,
using internal reference, unless otherwise specified.
ADS7812P, U
PARAMETER
POWER SUPPLY
V
S
Power Dissipation
TEMPERATURE RANGE
Specified Performance
Derated Performance
CONDITIONS
MIN
+4.75
f
S
= 40kHz
–40
–55
TYP
+5
MAX
+5.25
35
+85
+125
MIN
T
ADS7812PB, UB
TYP
T
MAX
T
T
T
T
UNITS
V
mW
°C
°C
T
T
T
Same specification as grade to the left.
NOTES: (1) LSB means Least Significant Bit. For the
±10V
input range, one LSB is 4.88mV. (2) Typical rms noise at worst case transitions and temperatures. (3)
Full scale error is the worst case of –Full Scale or +Full Scale untrimmed deviation from ideal first and last code transitions, divided by the transition voltage (not
divided by the full-scale range) and includes the effect of offset error. (4) After the ADS7812 is initially powered on and fully settles, this is the time delay after it
is brought out of Power Down Mode until all internal settling occurs and the analog input is acquired to rated accuracy, and normal conversions can begin again.
(5) All specifications in dB are referred to a full-scale input. (6) Useable Bandwidth defined as Full-Scale input frequency at which Signal-to-(Noise+Distortion)
degrades to 60dB, or 10 bits of accuracy. (7) Recovers to specified performance after 2 x FS input overvoltage.
ABSOLUTE MAXIMUM RATINGS
Analog Inputs: R1
IN
.........................................................................
±16.5V
R2
IN .....................................................................
GND – 0.3V to +16.5V
R3
IN .......................................................................................................
±16.5V
REF ............................................ GND – 0.3V to V
S
+ 0.3V
CAP ............................................... Indefinite Short to GND
Momentary Short to V
S
V
S
........................................................................................................... 7V
Digital Inputs ...................................................... GND – 0.3V to V
S
+ 0.3V
Maximum Junction Temperature ................................................... +165°C
Internal Power Dissipation ............................................................. 825mW
Lead Temperature (soldering, 10s) ................................................ +300°C
ELECTROSTATIC
DISCHARGE SENSITIVITY
This integrated circuit can be damaged by ESD. Burr-Brown
recommends that all integrated circuits be handled with
appropriate precautions. Failure to observe proper handling
and installation procedures can cause damage.
ESD damage can range from subtle performance degrada-
tion to 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.
PACKAGE/ORDERING INFORMATION
MAXIMUM
INTEGRAL
LINEARITY
ERROR (LSB)
±1
±0.5
±1
±0.5
GUARANTEED
NO MISSING
CODE LEVEL
(LSB)
12
12
12
12
MINIMUM
SIGNAL-TO-
(NOISE + DISTORTION)
RATIO (dB)
70
72
70
72
SPECIFICATION
TEMPERATURE
RANGE
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
PACKAGE
DRAWING
NUMBER
(1)
180
180
211
211
PRODUCT
ADS7812P
ADS7812PB
ADS7812U
ADS7812UB
PACKAGE
Plastic DIP
Plastic DIP
SOIC
SOIC
NOTE: (1) For detailed drawing and dimension table, please see end of data sheet, or Appendix C of Burr-Brown IC Data Book.
®
3
ADS7812
BURR-BROWN [ BURR-BROWN CORPORATION ]
