ES51963
4 1/2 DMM
Features
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22000 counts, adjustable
PEAK Hold function with calibration
mode
Input signal full scale = 220 mV
(sensitivity = 10 uV/count)
X10 function (sensitivity = 1 uV/count)
Conversion rate selectable
On chip buzzer driving, frequency
selectable
Low battery detection
Zero calibration for eliminating offset
error
Using 5V or 3V microprocessor
I/O port with microprocessor (3 pins)
Two formats for data acquisition
single 5V or 6V DC power supply
(V+ to V-)
28 pin SOP package
General Description
ES51963 is a 22000 counts dual-slope
analog-to-digital converter (ADC) with X10
and PEAK Hold functions. The conversion
rate and buzzer frequency can be selected or
decided by an external microprocessor. The
conversion rate can vary from 2 times/sec to
100 times/sec under 4 MHz operating clock.
The buzzer frequency can be chosen to be
audible among operating clock frequency
range from 400 KHz to 6 MHz. In addition,
other functions for low battery detection, on
chip buzzer driving, and I/O port with micro-
processor are also provided.
Absolute Maximum Ratings
Characteristic
Positive Supply Voltage
(V+ to AGND)
Negative Supply Voltage
(V- to AGND)
Analog I/O Voltage
Digital I/O Voltage
Power Dissipation
Operating Temperature
Storage Temperature
Lead Temperature
(soldering, 10sec)
Rating
3.5V
-3.5V
((V-) - 0.5V) to ((V+) + 0.5V)
((V-) - 0.5V) to ((V+) + 0.5V)
800mW
0°C to 70°C
-25°C to 125°C
270°C
TAIWAN PATENT NO. 476418
U.S. PATENT NO. 6,429,696
1
2003/9/1
CYRUSTEK [ Cyrustek corporation ]
