SPECIFICATIONS (CONT)
At TA = –40°C to +85°C, fS = 40kHz, VS = +5V ±5%, using internal reference, unless otherwise specified.
ADS7812P, U
ADS7812PB, UB
TYP
PARAMETER
CONDITIONS
MIN
TYP
MAX
MIN
MAX
UNITS
POWER SUPPLY
VS
Power Dissipation
+4.75
+5
+5.25
35
✻
✻
✻
✻
V
mW
fS = 40kHz
TEMPERATURE RANGE
Specified Performance
Derated Performance
–40
–55
+85
+125
✻
✻
✻
✻
°C
°C
✻ 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
ELECTROSTATIC
Analog Inputs: R1IN ......................................................................... ±16.5V
R2IN ..................................................................... GND – 0.3V to +16.5V
R3IN ....................................................................................................... ±16.5V
REF ............................................ GND – 0.3V to VS + 0.3V
CAP ............................................... Indefinite Short to GND
Momentary Short to VS
VS ........................................................................................................... 7V
Digital Inputs ...................................................... GND – 0.3V to VS + 0.3V
Maximum Junction Temperature ................................................... +165°C
Internal Power Dissipation ............................................................. 825mW
Lead Temperature (soldering, 10s)................................................ +300°C
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)
GUARANTEED
NO MISSING
CODE LEVEL
(LSB)
MINIMUM
SIGNAL-TO-
(NOISE + DISTORTION)
RATIO (dB)
SPECIFICATION
TEMPERATURE
RANGE
PACKAGE
DRAWING
NUMBER(1)
PRODUCT
PACKAGE
ADS7812P
ADS7812PB
ADS7812U
ADS7812UB
±1
±0.5
±1
12
12
12
12
70
72
70
72
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
Plastic DIP
Plastic DIP
SOIC
180
180
211
211
±0.5
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
BB [ BURR-BROWN CORPORATION ]
