ADC0820BCWMX ,8-Bit High Speed µP Compatible A/D Converter with Track/Hold FunctionADC0820 8-Bit High Speed µP Compatible A/D Converter with Track/Hold FunctionMarch 2004ADC08208-Bit ..
ADC0820CCD ,CMOS High Speed 8-Bit A/D Converter with Track/Hold FunctionELECTRICAL CHARACTERISTICS
(VDD = +5V, VREF+ = +5V, VREF‘ = GND, RD-MODE, TA = TON to TMAX, unless ..
ADC0820CCM ,CMOS High Speed 8-Bit A/D Converter with Track/Hold FunctionBlock Diagram
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ADC0820CCM ,CMOS High Speed 8-Bit A/D Converter with Track/Hold FunctionGeneral Description
The ADC0820 is a high speed, microprocessor com-
patible, 8 bit analog-to-d ..
ADC0820CCM ,CMOS High Speed 8-Bit A/D Converter with Track/Hold Function19-0889,' Fiev 1; 7/96
ADC0820CCM+ ,CMOS High-Speed 8-Bit A/D Converter with Track/Hold FunctionFeatures
The AD0082O is a high speed, microprocessor corn»
. Fast Conversion Time: 1.Os Max.
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ADC0820BCV-ADC0820BCWM-ADC0820BCWMX-ADC0820CCN-ADC0820CCN ..-ADC0820CCWMX
8-Bit High Speed µP Compatible A/D Converter with Track/Hold Function
ADC0820
8-Bit High Speed µP Compatible A/D Converter with
Track/Hold Function
General Description usinga half-flash conversion technique, the 8-bit
ADC0820 CMOS A/D offersa 1.5µs conversion time and
dissipates only75 mWof power. The half-flash technique
consistsof32 comparators,a most significant 4-bit ADC and least significant 4-bit ADC.
The inputtothe ADC0820is tracked and heldbythe input
sampling circuitry eliminating the need for an external
sample-and-holdfor signals movingat less than 100 mV/µs.
For easeof interfaceto microprocessors,the ADC0820 has
been designedto appearasa memory locationorI/O port
without the needfor external interfacing logic.
Key Specifications Resolution 8 Bits Conversion Time 2.5µs Max (RD Mode)
1.5µs Max (WR-RD Mode) Low Power 75 mW Max Total Unadjusted
Error ±1⁄2 LSB and±1 LSB
Features Built-in track-and-hold function No missing codes No external clocking Single supply—5 VDC Easy interfacetoall microprocessors,or operates
stand-alone Latched TRI-STATE output Logic inputs and outputs meet both MOS andT2L
voltage level specifications Operates ratiometricallyor with any reference value
equaltoor less than VCC0Vto5V analog input voltage range with single5V
supply No zeroor full-scale adjust required Overflow output availablefor 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)
Connection and Functional Diagrams
Dual-In-Line, Small Outline
and SSOP Packages
Molded Chip Carrier
PackageTop View
March 2004
ADC0820
8-Bit
High
Speed
Compatible
A/D
Converter
with
rack/Hold
Function
