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ADC12441CIJ
Dynamically-Tested Self-Calibrating 12-Bit Plus Sign A/D Converter with Sample and Hold [Life-time buy]
TL/H/11017
ADC12441
Dynamically-Tested
Self-Calibrating
12-Bit
Plus
Sign
A/D
Converter
with
Sample-and-Hold
November 1994
ADC12441 Dynamically-Tested Self-Calibrating 12-Bit
Plus Sign A/D Converter with Sample-and-Hold
General Description
The ADC12441isa CMOS 12-bit plus sign successiveap-
proximation analog-to-digital converter whose dynamic
specifications (S/N, THD, etc.)are testedand guaranteed. request,the ADC12441 goes througha self-calibration
cycle that adjusts positive linearityand full-scale errorsto
less than g(/2 LSB each and zero errorto less than LSB. The ADC12441 alsohasthe abilitytogo through Auto-Zero cyclethat correctsthe zero error during every
conversion.
The analog inputtothe ADC12441is trackedand heldby
the internal circuitry,and therefore doesnot requireanex-
ternal sample-and-hold.A unipolar analog input voltage
range (0Vto a5V)ora bipolar range (b5Vto a5V)canbe
accommodated with g5V supplies.
The 13-bitwordonthe outputsofthe ADC12441givesa2’s
complement representationof negative numbers. The digi-
tal inputs and outputsare compatible with TTLor CMOS
logic levels.
Features Self-calibration provides excellent temperature stability Internal sample-and-hold Bipolar input range with single a5V reference
Applications Digital signal processing Telecommunications Audio High resolution process control Instrumentation
Key Specifications Resolution 12bits plus sign Conversion Time 13.8ms (max) Bipolar Signal/Noise 76.5dB (min) Total Harmonic Distortion b75dB (max) Aperture Time 100ns Aperture Jitter 100 psrms Zero Error g1 LSB (max) PositiveFull Scale Error g1 LSB (max) Power Consumption@ g5V 70 mW (max) Sampling rate 55 kHz (max)
TRI-STATEÉ isaregistered trademark ofNationalSemiconductor Corporation.
Simplified Block Diagram
TL/H/11017–1
Connection Diagram
Dual-In-Line Package
TL/H/11017–2
TopView
OrderNumber
ADC12441CMJ, ADC12441CMJ/883 ADC12441CIJ
See NSPackageNumberJ28A
C1995National SemiconductorCorporation RRD-B30M115/PrintedinU.S.A.
