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ADC0820CCWM
8-Bit High Speed 碌P Compatible A/D Converter with Track/Hold Function
ADC0820-N
www.ti.com SNAS529C –JUNE 1999–REVISED MARCH 2013
ADC0820-N 8-Bit High SpeedµP Compatible A/D Converter with Track/Hold Function
Checkfor Samples: ADC0820-N
1FEATURES KEY SPECIFICATIONS Built-In Track-and-Hold Function • Resolution:8 Bits No Missing Codes • Conversion Time No External Clocking – 2.5µs Max (RD Mode) Single Supply—5 VDC – 1.5µs Max (WR-RD Mode) Easy Interfaceto All Microprocessors,or • Low Power:75 mW Max
Operates Stand-Alone • Total Unadjusted Error: ±½ LSB and±1 LSB Latched TRI-STATE Output
DESCRIPTION• Logic Inputs and Outputs Meet Both MOS and usinga half-flash conversion technique, the 8-bit
T2L Voltage Level SpecificationsADC0820-N CMOS A/D offersa 1.5µs conversion
• Operates Ratiometricallyor with any time and dissipates only 75 mWof power. The half-
Reference Value Equaltoor Less than VCC flash technique consistsof 32 comparators,a most
• 0Vto 5V Analog Input Voltage Range with significant 4-bit ADC anda least significant 4-bit
Single 5V Supply ADC.
No Zeroor Full-Scale Adjust Required The inputto the ADC0820-Nis tracked and heldby
Overflow Output Available for Cascading the input sampling circuitry eliminating the need for external sample-and-hold for signals movingat
• 0.3 in. Standard Width 20-Pin PDIP less than 100 mV/µs.
• 20-Pin PLCCFor ease of interface to microprocessors, the
• 20-Pin SOIC ADC0820-N has been designed to appear asa
memory location or I/O port without the need for
external interfacing logic.
Connection and Functional Diagrams Figure2. Package View)
