Datasheet

ADS7813
2
SBAS043C
www.ti.com
ELECTRICAL CHARACTERISTICS
At T
A
= –40°C to +85°C, f
S
= 40kHz, V
S
= +5V ±5%, using internal reference, unless otherwise specified.
ADS7813P, U ADS7813PB, UB
PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS
ABSOLUTE MAXIMUM RATINGS
(1)
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
NOTE: (1) Stresses above these ratings may cause permanent damage.
Exposure to absolute maximum conditions for extended periods may degrade
device reliability.
ELECTROSTATIC
DISCHARGE SENSITIVITY
This integrated circuit can be damaged by ESD. Texas Instru-
ments 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 degradation
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.
RESOLUTION 16 ✻ Bits
ANALOG INPUT
Voltage Range
See Table I ✻
Impedance
See Table I ✻
Capacitance 35 ✻ pF
THROUGHPUT SPEED
Conversion Time 20 ✻ µs
Complete Cycle Acquire and Convert 25 ✻ µs
Throughput Rate 40 ✻ kHz
DC ACCURACY
Integral Linearity Error ±3 ✻ ±2 LSB
(1)
Differential Linearity Error +3, –2 ✻ +2, –1 LSB
No Missing Codes 15 16 Bits
Transition Noise
(2)
0.6 ✻ LSB
Full Scale Error
(3)
±0.5 ±0.25 %
Full Scale Error Drift ±14 ✻ ppm/°C
Full Scale Error
(3)
Ext. 2.5000V Ref ±0.5 ±0.25 %
Full Scale Error Drift Ext. 2.5000V Ref ±5 ✻ ppm/°C
Bipolar Zero Error Bipolar Ranges ±10 ✻ mV
Bipolar Zero Error Drift Bipolar Ranges ±3 ✻ ppm/°C
Unipolar Zero Error Unipolar Ranges ±6 ✻ mV
Unipolar Zero Error Drift Unipolar Ranges ±3 ✻ ppm/°C
Recovery Time to Rated Accuracy 1.0µF Capacitor to CAP 300 ✻ µs
from Power Down
(4)
Power Supply Sensitivity +4.75V < (V
S
= +5V) < +5.25 ±12 ✻ LSB
AC ACCURACY
Spurious-Free Dynamic Range f
IN
= 1kHz 90 100 96 102 dB
(5)
Total Harmonic Distortion f
IN
= 1kHz –98 –90 –100 –96 dB
Signal-to-(Noise+Distortion) f
IN
= 1kHz 85 89 87 ✻ dB
Signal-to-Noise f
IN
= 1kHz 85 89 87 ✻ dB
Useable Bandwidth
(6)
130 ✻ kHz
Full Power –3dB Bandwidth 600 ✻ kHz
MINIMUM
MAXIMUM SPECIFIED SIGNAL-TO-
INTEGRAL NO MISSING (NOISE + SPECIFIED
LINEARITY CODE LEVEL DISTORTION) PACKAGE TEMPERATURE PACKAGE ORDERING TRANSPORT
PRODUCT ERROR (LSB) (LSB) RATIO (DB) PACKAGE-LEAD DESIGNATOR RANGE MARKING NUMBER MEDIA, QUANTITY
ADS7813P ±3 15 85 Dip-16 N –40°C to +85°C ADS7813P ADS7813P Tubes, 25
ADS7813PB ±21687
""" ADS7813PB ADS7813PB Tubes, 25
ADS7813U ±3 15 85 SO-16 DW –40°C to +85°C ADS7813U ADS7813U Tubes, 48
" " " " " " " " ADS7813U/1K Tape and Reel, 1000
ADS7813UB ±2 16 87 SO-16 DW –40°C to +85°C ADS7813UB ADS7813UB Tubes, 48
" " " " " " " " ADS7813UB/1K Tape and Reel, 1000
PACKAGE/ORDERING INFORMATION
(1)
NOTE: (1) For the most current package and ordering information, see the Package Option Addendum at the end of this data sheet, or see the TI web site at
www.ti.com.