ES51966
4 3/4 and 5 3/4 A/D (Peak &Cap)
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, capacitance, frequency and duty cycle
measurement
400mV independent input
on chip OP amp’ for AC/DC conversion
Auto zeroing function
Peak hold function with calibration mode
X10 function
I/O port for microprocessor
Capacitance measurement
-4nF to 40mF, count up to 40,000 counts
-Discharging indication
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
Description
The ES51966 is a 44,000/440,000-count
dual-slope analog-to-digital converter
(ADC) with X10 and PEAK Hold
functions. The ES51966 also include
capacitance, 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.
64-pin QFP
1
06/04/25
CYRUSTEK [ Cyrustek corporation ]
