ame7106 AME, Inc., ame7106 Datasheet - Page 11

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

Segment Drivers (AME7107)
LEDs. All segment drivers are N-channel transistors with
a typically 8 mA current driving capability. The 1000
segment AB4 sinks current from two LED segments,
and has a 16 mA driving capability. The polarity indication
is “ on” when the analog input voltage is negative.
Test
minus sign will be activated. The TEST pin is tied to the
internally generated digital ground through a 500W resis-
tor in the AME7106. It is typically 5V lower than V+. TEST
pin may be used as the negative power supply for exter-
nal CMOS logic at the maximum current of 1 mA.
Data Hold
result will not be updated. The conversion is still free run-
ning during the hold mode. It is available in 44 pin pack-
age
Rev.H.02
AME7106 / 7106A / 7106R
AME7107 / 7107A / 7107R
The AME7107 is designed to drive common anode
When the TEST is pulled to V+ all segments and the
When the Hold pin is connected to V+ the conversion
AME, Inc.
Figure9. Timing of OSOC3, INTEN, DEEN, and INTEGRATOR Output
s
Integration Status (INTEN)
“ high” during the signal integration phase. This signal
can be used as a status indicator or a control to connect
the analog signal to the converter for processing. It is
available in 44 pin package.
De-integration Status (DEEN)
“ high” during the reference de-integration phase. The
period of the DEEN is proportional to the conversion re-
sult. Users may calculate the conversion result by count-
ing the number of clock pulse on the OSC3 pin when
DEEN is “ high” . The conversion result is equal to (N/4) -
1/2 where N is the number of the pulse at the OSC3 pin.
It is available in 44 pin package.
The INTEN is an output signal of the converter, it is
The DEEN is an output signal of the converter, it is
High Accuracy, Low Power
3-1/2 Digit A/D Converter
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