ADC12H034CIN ,Self-Calibrating 12-Bit Plus Sign Serial I/O A/D Converters with MUX and Sample/HoldFeaturesn Serial I/O (MICROWIRE Compatible)The ADC12030, and ADC12H030 families are 12-bit plussign ..
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ADC12L038CIWM ,3.3V Self-Calibrating 12-Bit Plus Sign Serial I/O A/D Converters with MUX and Sample/Hold
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ADUM3400CRWZ , Quad-Channel, Digital Isolators, Enhanced System-Level ESD Reliability
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ADC12H034CIN
Self-Calibrating 12-Bit Plus Sign Serial I/O A/D Converters with MUX and Sample/Hold
ADC12H030/ADC12H032/ADC12H034/ADC12H038,
ADC12030/ADC12032/ADC12034/ADC12038
Self-Calibrating 12-Bit Plus Sign Serial I/O A/D
Converters with MUX and Sample/Hold
General DescriptionThe ADC12030, and ADC12H030 familiesare 12-bit plus
sign successive approximationA/D converterswith serialI/O
and configurable input multiplexers. The ADC12032/
ADC12H032, ADC12034/ADC12H034 and ADC12038/
ADC12H038 have2,4and8 channel multiplexers, respec-
tively.The differential multiplexer outputsandA/D inputsare
available onthe MUXOUT1, MUXOUT2,A/DIN1and A/DIN2
pins.The ADC12030/ADC12H030hasatwo channel multi-
plexer withthe multiplexer outputsandA/D inputs internally
connected. The ADC12030 familyis tested witha5MHz
clock, whilethe ADC12H030 familyis testedwithan8 MHz
clock.On request, these A/Dsgo throughaself calibration
process that adjusts linearity, zero and full-scale errorsto
less than±1 LSB each.
The analog inputscanbe configuredto operatein various
combinations of single-ended, differential, or
pseudo-differential modes.Afullydifferentialunipolar analog
input range(0Vto +5V)canbe accommodatedwitha single
+5V supply.Inthe differential modes, valid outputsareob-
tained even whenthe negative inputsare greater thanthe
positive becauseofthe 12-bit plus sign output data format.
The serial I/Ois configuredto comply with the
NSC MICROWIRE™. For voltage references see the
LM4040or LM4041.
Features SerialI/O (MICROWIRE Compatible)2,4,or8 channel differentialor single-ended multiplexer Analog input sample/hold function Power down mode Variable resolutionand conversion rate Programmable acquisition time Variable digital output word lengthand formatNo zeroorfull scale adjustment required Fully testedand guaranteed witha 4.096V reference0Vto5V analog input range with single5V power
supplyNo Missing Codes over temperature
Key Specifications Resolution 12-bit plus sign 12-bit plus sign conversion time ADC12H030 family 5.5μs (max) ADC12030 family 8.8μs (max) 12-bit plus sign throughput time ADC12H030 family 8.6μs (max) ADC12030 family 14μs (max) Integral linearity error ±1 LSB (max) Single supply 5V ±10% Power dissipation 33mW (max) Power down 100μW (typ)
Applications Medical instruments Process control systems Test equipment
TRI-STATE®isa registeredtrademark ofNationalSemiconductorCorporation.
COPS™ microcontrollers,HPC™and MICROWIRE™aretrademarksofNationalSemiconductor Corporation.
July 1999
ADC12H030/ADC12H032/ADC12H034/ADC12H038,
ADC12030/ADC12032/ADC12034/ADC12038
Self-Calibrating
12-Bit
Plus
Sign
Serial
I/O
A/D
Converters
with
MUX
and
Sample/Hold©1999 National Semiconductor Corporation DS011354
