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ES51999 Datasheet(PDF) 1 Page - Cyrustek corporation

Part No. ES51999
Description  4 3/4 and 5 3/4 A/D AUTO
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Maker  CYRUSTEK [Cyrustek corporation]
Homepage  http://www.cyrustek.com.tw
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ES51999 Datasheet(HTML) 1 Page - Cyrustek corporation

 
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07/07/06
1
ES51999
4 3/4 and 5 3/4 A/D AUTO
Features
External crystal oscillator
4MHz: count up to 44,000 counts
(input range: ±440mV)
10MHz: count up to 440,000 counts
(input range: ±440mV)
Four selectable conversion rates:
20, 10, 5, 2 conversion/sec
On chip resistance switches for range
Changing.
Voltage (DC/AC), current(DC/AC), resistor,
diode, frequency and duty cycle measurement
400mV independent input
on chip OP amp’ for AC/DC conversion
Auto zeroing function
X10 function
I/O port for microprocessor
400MHz Frequency counter and 1MHz duty
cycle measurement
On chip buzzer driving: 2KHz
Single 5V DC power supply (V+ to V-)
Low battery detection
SLEEP mode
64-pin QFP
Description
The ES51999 is a 44,000/440,000-count
dual-slope analog-to-digital converter
(ADC)
with
X10
functions.
The
ES51999 also include frequency and
duty cycle measurement. The conversion
rate
and
resolution
can
be
selected/decided
by
external
microprocessor. In additional, other
functions are also provided for low
battery detection, on chip buzzer driving,
and I/O port with microprocessor.


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