ame7106 AME, Inc., ame7106 Datasheet - Page 8

• Manufacturer Part Number: ame7106
• Description: 3-1/2 Digit A/d Converter High Accuracy, Low Power
• Manufacturer: AME, Inc.

Analog Common (COM)
for the analog signal. The analog common is typically
3.0V below V+, set primary for the battery operated ap-
plication. Analog common is capable to sink 20 mA.
It
is therefore easily pulled to a more negative voltage to
override the internal reference. When supply voltage is
greater than 7V, analog common can be used as refer-
ence source with temperature coefficient of typically 50
ppm/
of the AME7107 may degrade the stability of the Analog
Common. An external reference is recommended.
8
AME7106 / 7106A / 7106R
AME7107 / 7107A / 7107R
The Analog Common is to set a common mode voltage
s
source current is limited to 10
O
C. The internal heating by the LED display drivers
Figure5. Using an External Reference
AME, Inc.
A. Analog common
High Accuracy, Low Power
3-1/2 Digit A/D Converter
Rev.H.02