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ADC0841
8-Bit Microprocessor Compatible A/D Converter
TL/H/8557
ADC0841
8-Bit
Compatible
A/D
Converter
December 1994
ADC0841 8-Bit mP Compatible A/D Converter
General Description
The ADC0841isa CMOS 8-bit successive approximation
A/D converter. Differential inputs providelow frequencyin-
put common mode rejectionand allow offsettingthe analog
rangeofthe converter.In addition,the reference inputcan adjusted enablingthe conversionof reduced analog
ranges with 8-bit resolution.
The A/Dis designedto operate withthe controlbusofa
varietyof microprocessors. TRI-STATEÉ output latchesthat
directly drivethe databus permitthe A/Dtobe configureda memory locationorI/O devicetothe microprocessor
withno interface logic necessary.
Features Easy interfacetoall microprocessors Operates ratiometricallyor with5 VDC
voltage referenceNo zeroor full-scale adjust required Internal clock0Vto5V input range with single5V power supply 0.3× standard width 20-pin package20Pin Molded Chip Carrier Package
Key Specifications Resolution 8Bits Total Unadjusted Error g(/2 LSBandg1 LSB Single Supply 5 VDC Low Power 15 mW Conversion Time 40ms
Block and Connection Diagrams
TL/H/8557–1
Dual-In-Line Package(N)
TL/H/8557–2
Top View
(N.C.-No Connection)
Molded Chip CarrierPackage(V)
TL/H/8557–3
TopView
TRI-STATEÉ isaregistered trademarkof National SemiconductorCorporation.
NSC800TMisatrademark ofNationalSemiconductor Corporation.
C1995National SemiconductorCorporation RRD-B30M115/PrintedinU.S.A.
