SPECIFICATIONS
ELECTRICAL
(CONT)
At T
A
= T
MIN
to T
MAX
, Sampling Frequency, f
S
, = 333kHz, –V
S
= –15V, V
S
= +5V, unless otherwise specified.
ADS7800JP/JU/AH
PARAMETER
TEMPERATURE RANGE
Specification
Operating
Storage
CONDITIONS
JP/JU/KP/KU
AH/BH
JP/KP/JU/KU
MIN
0
–40
–40
–65
TYP
MAX
+70
+85
+85
+150
ADS7800KP/KU/BH
MIN
*
*
*
*
TYP
MAX
*
*
*
*
UNITS
°C
°C
°C
°C
* Same as specification for ADS7800JP/JU/AH.
NOTES: (1) Adjustable to zero with external potentiometer. (2) LSB means Least Significant Bit. For ADS7800, 1LSB = 2.44mV for the
±5V
range, 1LSB =
4.88mV for the
±10V
range. (3) Noise was characterized over temperature near full scale, 0V, and negative full scale. 0.1LSB represents a typical rms level of
noise at the worst case, which was near full scale input at +125°C. (4) All specifications in dB are referred to a full-scale input, either
±10V
or
±5V.
(5) For full
scale step input, 12-bit accuracy attained in specified time. (6) Recovers to specified performance in specified time after 2 x F
S
input overvoltage.
ABSOLUTE MAXIMUM RATINGS
–V
S
to ANALOG COMMON ............................................................ –16.5V
V
S
to DIGITAL COMMON .................................................................... +7V
Pin 23 (V
SD
) to Pin 24 (V
SA
) ...........................................................
±0.3V
ANALOG COMMON to DIGITAL COMMON .......................................
±1V
Control Inputs to DIGITAL COMMON ............................. –0.3 to V
S
+ 0.3V
Analog Input Voltage ..........................................................................
±20V
Maximum Junction Temperature ..................................................... 160°C
Internal Power Dissipation ............................................................. 750mW
Lead Temperature (soldering, 10s) ............................................... +300°C
Thermal Resistance,
θ
JA
:
Plastic DIP ................................................................................ 100°C/W
SOIC ......................................................................................... 100°C/W
Ceramic ...................................................................................... 50°C/W
ELECTROSTATIC
DISCHARGE SENSITIVITY
The ADS7800 is an ESD (electrostatic discharge) sensitive
device. The digital control inputs have a special FET struc-
ture, which turns on when the input exceeds the supply by
18V, to minimize ESD damage. However, permanent damage
may occur on unconnected devices subject to high energy
electrostatic fields. When not in use, devices must be stored in
conductive foam or shunts. The protective foam should be
discharged to the destination socket before devices are re-
moved.
PACKAGE/ORDERING INFORMATION
For the most current package and ordering information, see
the Package Option Addendum located at the end of this data
sheet.
ADS7800
SBAS001A
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3
ROCHESTER [ Rochester Electronics ]
