Features • Specified over a range of sample rates. • Four input channels • Variable power management • Single power supply with 2.7V - 5.25V range Description The ADC124S021 is a low-power, four-channel CMOS 12-bit analog-to-digital converter with a high-speed serial interface. Unlike the conventional practice of specifying performance at a single sample rate only, the ADC124S021 is fully specified over a sample rate range of 50 ksps to 200 ksps. The converter is based on a successive-approximation register architecture with an internal track-and-hold circuit. It can be configured to accept up to four input signals at inputs IN1 through IN4. The output serial data is straight binary, and is compatible with several standards, such as SPI™, QSPI™, MICROWIRE, and many common DSP serial interfaces. The ADC124S021 operates with a single supply that can range from +2.7V to +5.25V. Normal power consumption using a +3V or +5V supply is 2.2 mW and 7.9 mW, respectively. The power-down feature reduces the power consumption to just 0.14 µW using a +3V supply, or 0.32 µW using a +5V supply. The ADC124S021 is packaged in a 10-lead MSOP package. Operation over the industrial temperature range of −40°C to +85°C is guaranteed. Key Specification DNL +0.4 / −0.2 LSB (typ) INL ± 0.35 LSB (typ) SNR 72.0 dB (typ) Power Consumption 3V Supply 2.2 mW (typ) 5V Supply 7.9 mW (typ) Applications • Portable Systems • Remote Data Acquisition • Instrumentation and Control Systems

ADC124S021 Webench® Custom Design/Analyze/Build It ADC Parameters ADC and Op Amp Supply voltage: 5 V 3.3 V help Sample Rate Sample Rate per channel ksps help Operating Conditions Min. Ambient Temperature degC help Nominal Ambient Temperature degC help Max. Ambient Temperature degC help Also Recommended ADC084S021▲ For 8 Bits ADC104S021▲ For 10 Bits ADC124S051▲ For Speeds From 200Ksps To 500Ksps ADC124S101▲ For Speeds From 500Ksps To 1Msps MY BRIEFCASE                                       Click any "Briefcase" icon to add an item

Typical Application click for larger image	Block Diagram click for larger image
Typical Performance click for larger image

Datasheet

Title		Size	Date	Other Language
	ADC124S021 4 Channel, 50 ksps to 200 ksps, 12-Bit A/D Converter	429 Kbytes	4-Aug-08	日本語

Featured Application Notes

Title		Size	Date	Other Language
	AN-769: Dynamic Specifications for Sampling A/D Converters	128 Kbytes	5-Aug-95
	AN-804: Improving A/D Converter Performance Using Dither	162 Kbytes	5-Aug-95	日本語

More Application Notes

Title		Size	Date	Other Language
	AN-1261: Application Note 1261 Power Supply Effects on Noise Performance	78 Kbytes	16-Mar-07	中文

Design Tools

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Evaluation Boards & Development Systems

Reliability Metrics

Part Number	Process	EFR Reject	EFR Sample Size	PPM	LTA Rejects	LTA Device Hours	FITS	MTTF (Hours)
ADC124S021CIMM	CMOS7	0	18406	0	0	1089000	4	309006723
ADC124S021CIMMX	CMOS7	0	18406	0	0	1089000	4	309006723

Note: The Early Failure Rates (EFR) were calculated as point estimate PPM based on rejects and sample size for EFR. The Long Term Failure Rates were calculated at 60% confidence using the Arrhenius equation at 0.7eV activation energy and derating the assumed stress temperature of 150°C to an application temperature of 55°C.

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