ADC0820CCWMX Datasheet - 8-Bit High Speed µP Compatible A/D Converter with Track/Hold Function

ADC0820CCWMX Description
8-Bit High Speed µP Compatible A/D Converter with Track/Hold Function
ADC0820CCWMX Vendor
National Semiconductor
ADC0820CCWMX Features
Built-in track-and-hold function No missing codes No external clocking Single supply-5 V_DC Easy interface to all microprocessors, or operates stand-alone Latched TRI-STATE output Logic inputs and outputs meet both MOS and T²L voltage level specifications Operates ratiometrically or with any reference value equal to or less than V_CC 0V to 5V analog input voltage range with single 5V supply No zero or full-scale adjust required Overflow output available for cascading 0.3" standard width 20-pin DIP 20-pin molded chip carrier package 20-pin small outline package 20-pin shrink small outline package (SSOP)
ADC0820CCWMX Description
By using a half-flash conversion technique, the 8-bit ADC0820 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.
ADC0820CCWMX Datasheet and Application Notes
ADC0820CCWMX Datasheet
Parameter	Value
Temperature Max (deg C)	70
On-Board Reference	No
MinSupply Voltage (Volt)	4.50
MaxSupply Voltage (Volt)	8
Resolution (bit)	8
Conversion Time (us)	1.50
Differential Input	No
Input Sample/Hold	Yes
Multiplexer Inputs ()	1
Interface Type	Parallel
Software Powerdown	No
Conversion Accuracy (LSB)	.50
Package	SOIC WIDE
Pins	20
Status	Full production
Pricing	$1.82
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