(China (Mainland))
Product Summary
The ES51973S is a 22000 counts dualslope analog-to-digital converter (ADC). Ihc conversion rate, buzzer frequency and resolution can be sclcctcd or dccidcd by an external microprocessor. The conversion rate can vary from 2 timcs/scc to 100 timcs/scc under 4 MHz operating clock. The buzzer frequency can be chosen to be audible from 400 KHz to 6 MHz. In addition, other functions for low battery dctcction, on chip buzzer driving, and I/O port with micro­processor arc also providcd.
Parametrics
ES51973S absolute maximum ratings: (1)Positive supply voltage (V+ to AGND): 3.5V; (2)Negative supply voltage (V: to AGND): -3.5V; (3)Analog I/O voltage: ((V-)- 0.5V)to ((V+)+ 0.5V); (4)Digital I/O voltage: ((V-)- 0.5V)to ((V+)+ 0.5V); (5)Power dissipation: 800mW; (6)Operating temperature: 0°C to 70°C; (7)Storage temperature: -25°C to 125°C; (8)Lead temperature (soldering, 1 Oscc): 270°C.
Features
ES51973S features: (1)22000 counts, adjustable; (2)Input signal full scalc = 220 mV (sensitivity = 10 uV/count); (3)Conversion rate sclcctablc; (4)On chip buzzer driving, frcqucncy sclcctablc; (5)Low battery dctcction; (6)Zero calibration for eliminating offset error; (7)Using 5V or 3V microprocessor; (8)I/O port with microprocessor (3 pins); (9)Two formats for data acquisition; (10)single 5V or 6V DC power supply (V+ to V-); (11)28 pin SOP packagc.
Diagrams
