ADC0820CCN 8-bit A/D Converter with Track/Hold

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The 8-bitADC0820CCN CMOS A/D offers a 1.5 μs conversion time and dissipates only 75 mW of power. The half-flash technique consists of 32 comparators, a most significant 4-bit ADC and a least significant 4-bit ADC. The input to the ADC0820 is tracked and held by the input sampling circuitry eliminating the need for an external sample-and-hold for signals moving at less than 100 mV/μs. For ease of interface to microprocessors, the ADC0820 has been designed to appear as a memory location or I/O port without the need for external interfacing logic.

ADC0820CCN Pinout

ADC0820CCN Pin Configuration

Pin Number	Pin Name	Description
1	Vin	Voltage Input
2	DB0	Tri-State Output Bit 0
3	DB1	Tri-State Output Bit 1
4	DB2	Tri-State Output Bit 2
5	DB3	Tri-State Output Bit 3
6	WR/RDY	Write/Ready Mode
7	MODE	Mode Selection
8	RD	Read (Active Low)
9	INT	Interrupt (Active Low)
10	GND	Ground
11	Vref-	Voltage Reference Negative Input
12	Vref+	Positive Voltage Reference Input
13	CS	Chip Select (Active Low)
14	DB4	Tri-State Data Output Bit 4
15	DB5	Tri-State Data Output Bit 5
16	DB6	Tri-State Data Output Bit 6
17	DB7	Tri-State Data Output Bit 7
18	OFL	Overflow Output (Active Low)
19	NC	Not Connected
20	Vcc	Power Supply Voltage