AME7106 Datasheet, PDF (1/20 Pages) Analog Microelectronics – 3-1/2 Digit A/D Converter High Accuracy, Low Power

AME, Inc.
AME7106/AME7106A/AME7106R
AME7107/AME7107A/AME7107R
n Key Features
l 100µV Resolution
l High Impedance Differential Inputs
l Differential Reference
l Drive LCD (AME7106) or LED (AME7107)
Directly
l Four New Convenient Features
(AME7106A/AME7107A)
l Display-Hold
l Low-Battery Indication
l Integration Status Indication
l De-Integration Status Indication
n Applications
l Digital multimeter
l pH meter
l Capacitance meter
l Thermometer
l Digital Panel meter
l Photometer
3-1/2 Digit A/D Converter
High Accuracy, Low Power
n General Description
The AME7106 and AME7107 family are high perfor-
mance, low power, 3-1/2 digit, dual-slope integrating A/
D converters, with on-chip display drivers. The
AME7106 is designed for a single battery operated sys-
tem, will drive non-multiplexed LCD display directly.
The AME7107 is designed for a dual power supply sys-
tem, will directly drive common anode LED display.
These A/D converters are inherently versatile and ac-
curate. They are immune to the high noise environ-
ments. The true differential high impedance inputs and
differential reference are very useful for making
ratiometric measurement, such as resistance, strain
gauge and bridge transducers. The built-in auto-zero
feature automatically corrects the system offset with-
out any external adjustments.
Display-hold, low-battery flag, integration and de-inte-
gration status flags are four additional features which
are available in the 44-pin package, AME7106ACKW
and AME7107ACKW.
n Typical Operating Circuit * For the operating circuit of the reverse-pins version, please refer
to pin configuration on page 4 and pin description on page 5 & 6
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