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ADC0820-N Даташит

Номер в каталоге Компоненты Описание производитель
ADC0820-N 8-Bit High Speed µP Compatible A/D Converter with Track/Hold Function TI
Texas Instruments TI
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DESCRIPTION
By using a half-flash conversion technique, the 8-bit ADC0820-N CMOS A/D offers a 1.5 µs conversion time flash and technique dissipates consists only 75 of 32 mWcomparators, of power. The a most half- significant 4-bit ADC and a least significant 4-bit ADC.
The input to the ADC0820-N 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-N has been designed to appear as a memory location or I/O port without the need for external interfacing logic.

FEATURES
• Built-In Track-and-Hold Function
• No Missing Codes
• No External Clocking
• Single Supply—5 VDC
• 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 VCC
• 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 in. Standard Width 20-Pin PDIP
• 20-Pin PLCC
• 20-Pin SOIC

KEY SPECIFICATIONS
• Resolution: 8 Bits
• Conversion Time
   – 2.5 µs Max (RD Mode)
   – 1.5 µs Max (WR-RD Mode)
• Low Power: 75 mW Max
• Total Unadjusted Error: ±½ LSB and ± 1 LSB

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