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ADC124S021CIMM-ADC124S021CIMMX
4 Channel, 200 kSPS, 12-Bit A/D Converter
ADC124S021 Channel, 200 kSPS, 12-Bit A/D Converter
General DescriptionThe ADC124S021isa low-power, four-channel CMOS 12-bit
analog-to-digital converter witha high-speed serial interface.
Unlike the conventional practiceof specifying performancea single sample rate only, the ADC124S021is fully speci-
fied overa sample rate rangeof50 kSPSto 200 kSPS. The
converteris basedona successive-approximation register
architecture withan internal track-and-hold circuit.It canbe
configuredto acceptupto four input signalsat inputs IN1
through IN4.
The output serial datais straight binary, andis compatible
with several standards, suchas SPI™, QSPI™, MICROW-
IRE, and many common DSP serial interfaces.
The ADC124S021 operates witha single supply that can
range from +2.7Vto +5.25V. Normal power consumption
usinga +3Vor +5V supplyis 2.2 mW and7.9 mW, respec-
tively. The power-down feature reducesthe power consump-
tionto just 0.14 µW usinga +3V supply,or 0.32 µW usinga
+5V supply.
The ADC124S021is packagedina 10-lead MSOP package.
Operation overthe industrial temperature rangeof −40˚Cto
+85˚Cis guaranteed.
Features Specified overa rangeof sample rates. Four input channels Variable power management Single power supply with 2.7V- 5.25V range
Key Specifications DNL +0.4/ −0.2 LSB (typ) INL ± 0.35 LSB (typ) SNR 72.0dB (typ) Power Consumption3V Supply 2.2 mW (typ)5V Supply 7.9 mW (typ)
Applications Portable Systems Remote Data Aquisitions Instrumentation and Control Systems
Pin-Compatible Alternatives by Resolution and SpeedAll devices are fullypin and function compatible.
Resolution Specifiedfor Sample Rate Rangeof:to 200 kSPS 200to 500 kSPS 500 kSPSto1 MSPS12-bit
ADC124S021 ADC124S051 ADC124S101
10-bit ADC104S021 ADC104S051 ADC104S101
8-bit ADC084S021 ADC084S051 ADC084S101
Connection DiagramApril 2005
ADC124S021
Channel,
kSPS,
12-Bit
A/D
Converter
