Datasheet

ADS7823
2
SBAS180B
MAXIMUM
INTEGRAL SPECIFIED
LINEARITY TEMPERATURE PACKAGE PACKAGE ORDERING TRANSPORT
PRODUCT ERROR (LSB) RANGE PACKAGE-LEAD DESIGNATOR
(1)
MARKING NUMBER MEDIA, QUANTITY
ADS7823E ±2 –40°C to +85°C MSOP-8 DGK B23 ADS7823E/250 Tape and Reel, 250
"" " " " "ADS7823E/2K5 Tape and Reel, 2500
ADS7823EB ±1 –40°C to +85°C MSOP-8 DGK B23 ADS7823EB/250 Tape and Reel, 250
"" " " " "ADS7823EB/2K5 Tape and Reel, 2500
NOTE: (1) For the most current specifications and package information, refer to our web site at www.ti.com.
PACKAGE/ORDERING INFORMATION
ABSOLUTE MAXIMUM RATINGS
(1)
+V
DD
to GND ........................................................................ –0.3V to +6V
Digital Input Voltage to GND ................................. –0.3V to +V
DD
+ 0.3V
Analog Input Voltage to GND ........................................... –0.3V to +6.0V
Operating Temperature Range ........................................–40°C to +85°C
Storage Temperature Range .........................................–65°C to +150°C
Junction Temperature (T
J
max) .................................................... +150°C
TSSOP Package
Power Dissipation .................................................... (T
J
max – T
A
)/
θ
JA
θ
JA
Thermal Impedance ...................................................... +240°C/W
Lead Temperature, Soldering
Vapor Phase (60s) ............................................................ +215°C
Infrared (15s) ..................................................................... +220°C
NOTE: (1) Stresses above those listed under “Absolute Maximum Ratings”
may cause permanent damage to the device. Exposure to absolute maximum
conditions for extended periods may affect 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.
ELECTRICAL CHARACTERISTICS: +2.7V
At T
A
= –40°C to +85°C, +V
DD
= +2.7V, V
REF
= +2.5V, SCL Clock Frequency = 3.4MHz (High Speed Mode) unless otherwise noted.
ADS7823E ADS7823EB
PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS
RESOLUTION 12 Bits
ANALOG INPUT
Full-Scale Input Range 0 V
REF
✻✻V
Input Capacitance 25 pF
Input Leakage Current ±1 µA
SYSTEM PERFORMANCE
No Missing Codes 12 Bits
Integral Linearity Error ±1.0 ±2 ±0.5 ±1LSB
(1)
Differential Linearity Error –0.5, +1.0 –1.0, +3.0 ±0.5 LSB
Offset Error ±1.0 ±4 ±0.75 ±3 LSB
Gain Error ±1.0 ±4 ±0.75 ±3 LSB
Noise 33 µVrms
Power Supply Rejection 82 dB
SAMPLING DYNAMICS
Throughput Frequency High Speed Mode: SCL = 3.4MHz 50 kHz
Fast Mode: SCL = 400kHz 8 kHz
Standard Mode, SCL = 100kHz 2 kHz
Conversion Time 8 µs
AC ACCURACY
Total Harmonic Distortion V
IN
= 2.5V
PP
at 10kHz –82 dB
(2)
Signal-to-Ratio V
IN
= 2.5V
PP
at 10kHz 72 dB
Signal-to-(Noise+Distortion) Ratio V
IN
= 2.5V
PP
at 10kHz 71 dB
Spurious Free Dynamic Range V
IN
= 2.5V
PP
at 10kHz 86 dB
VOLTAGE REFERENCE INPUT
Range 0.05 V
DD
✻✻V
Resistance All Modes 1.0 G
Current Drain At Code 800H, HS Mode: SCL = 3.4MHz 9.0 µA