Absolute Maximum Ratings Thermal Information
Supply Voltage Thermal Resistance (typical, Note 2) θ
JA
(℃/W)
WS7106, V+ to V-…………………………….15v PDIP Package……………………………………………. …… ………… 50
WS7107, V+ to GND…………………….……6V Maximum Junction Temperature…………………………………….. ………150℃
WS7107, V_ to GND……………………. ….-9V Maximum Storage Temperature Range………………….………..-65℃ to 150℃
Analog Input Voltage (Either Input) (Note 1)V+ to V-
Reference Input Voltage (Either Input)V+ to V-
Clock Input
WS7106TEST to V+
WS7107GND to V+
Operating Conditions
Temperature Range…………………………0℃ to 70℃
CAUTION: Stresses above those listed in “absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation
Of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
Notes:
1. Input voltages may exceed the supply voltages provided the input current is limited to ±100µA
2. Θ
JA
Is measured with the component mounted on an evaluation PC on board in fee air.
Electrical specifications
(Note 3)
PARAMETER
TEST CONDITIONS MIN TYP MAX UNIT
SYST E M PERFORMACE
Zero Input Reading V
IN
=0.0V, FULL Scale = 200mV -000.0 ±000.0 +000.0
Digital
Reading
Ratiometric Reading V
IN
= V
REF
, V
REF
= 100mV 999 999/1000 1000
Digital
Reading
Rollover Error
-V
IN
=+V
IN
=200mV
Difference in Reading for Equal Positive and
Negative Inputs Near Full Scale
-1 0.2 +1 Counts
Linearity
Full Scale = 200mV or Full Scale = 2V Maximum
Deviation from Best Straight Line Fit (note 6)
-1 0.2 +1 Counts
Common Mode Rejection Ratio V
CM
= 1V, V
IN
= 0V, Full Scale = 200mv(Note 6) - 50 - μV/V
End Power Supply Character V+ Supply Current V
IN
= 0 (Does Not Include LED Current for WS7107 - 0.5 1.8 mA
End Power Supply Character V- Supply Current WS7107 Only - 0.5 1.8 mA
COMMON Pin Analog Common Voltage
25kΩ Between Common and Positive Supply (With
Respect to + Supply)
2.4 3.0 3.2 V
Noise (P
K
-P
K
Value not exceeded 95% of time) V
IN
=0V Full Scale=200mV 15 uV
P-P
Input Leakage Current V
IN
=0V 1 10 pA
Analog COMMON Temperature Coefficient 25K between Common and V+ 0℃-70℃ 60 75 ppm/℃
Scale Factor Temperature Coefficient V
IN
=199mV 0℃-70℃Ext. ref. 0ppm/℃ 60 75 ppm/℃
Zero Reading Drift V
IN
=0℃V-70℃ 0.2 1 uV/℃
DISPLAY DRIVER WS7106 ONLY
Peak-to-Peak Segment Drive Voltage
Peak-to-Peak Backplane Drive Voltage
V+ = to V- = 9V (Note 5) 4 5 6 V
