ADC0820 is a 8-bit high precision A/D converter with track/hold function produced by Microchip Technology. It uses a half-flash conversion technique and offers a 1.5µs conversion time and dissipates only 75mW of power. The ADC0820 has a built-in track-and-hold function and does not require an external sample-and-hold circuit. It can be used as a memory location or I/O port for easy interface with a microprocessor.
The ADC0820 is a CMOS analog-to-digital converter featuring a half-flash conversion technique that provides an 8-bit resolution and a maximum conversion time of 1.5 µs in WR-RD mode. It includes a built-in track-and-hold circuit, eliminating the need for external sample-and-hold components for signals moving at less than 100 mV/µs.
The device is designed to interface easily with microprocessors by appearing as a memory location or I/O port without external logic. It operates on a single +5V supply and offers various package options including DIP, SSOP, and molded chip carriers.
| Resolution | 8 Bits |
|---|---|
| Conversion Time (RD Mode) | 2.5 µs Max |
| Conversion Time (WR-RD Mode) | 1.5 µs Max |
| Power Dissipation | 75 mW Max |
| Total Unadjusted Error | +2 LSB and +1 LSB |
| Supply Voltage | +5V |
| Analog Input Range | 0V to 5V |
No, it has a built-in track-and-hold function that eliminates the need for an external component.
The maximum conversion time is 1.5 µs.
No, the device operates without external clocking.