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5962-88650022A Analog Devices, Inc. (ADI)
Converter - ADC
The AD7820 is a high speed, microprocessor-compatible 8-bit ADC which uses a half-flash conversion technique to achieve a conversion time of 1.36 µs. The converter has a 0 V to +5 V analog input voltage range with a single +5 V supply. The half-flash technique consists of 31 comparators, a most significant 4-bit ADC and a least significant 4-bit ADC. The input to the AD7820 is tracked and held by the input sampling circuitry, eliminating the need for an external sample-and-hold for signals with slew rates less than 100 mV/µs. The part is designed for ease of microprocessor interface with the AD7820 appearing as a memory location or I/O port without the need for external interfacing logic. All digital outputs use latched, three-state output buffer circuitry to allow direct connection to a microprocessor data bus or system input port. A non-three state overflow output is also provided to allow cascading of devices to give higher resolution.
 
Key AttributesValue
Resolution
Sample Rate
Sample Rate
Data Bus Interface
Number of Channels
Supply Voltage Range : Minimum Supply Voltage
Supply Voltage Range : Maximum Supply Voltage
Package Type
Availability
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QuantityUnit Price
1 - 24
$275.45
25 - 99
$196.40
100 - 999
$145.29
1000+Get Quote
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