Features • Internal sample-and-hold • Outputs 2.35V to 5V compatible • Pin compatible with ADC12010, ADC12040, ADC12L063 and ADC12L066 • TTL/CMOS compatible input/outputs • Power down mode • On-chip reference buffer Description The ADC12020 is a monolithic CMOS analog-to-digital converter capable of converting analog input signals into 12-bit digital words at 20 Megasamples per second (MSPS), minimum. This converter uses a differential, pipeline architecture with digital error correction and an on-chip sample-and-hold circuit to minimize die size and power consumption while providing excellent dynamic performance. Operating on a single 5V power supply, this device consumes just 185 mW at 20 MSPS, including the reference current. The Power Down feature reduces power consumption to 40 mW. The differential inputs provide a full scale input swing equal to 2VREF with the possibility of a single-ended input. Full use of the differential input is recommended for optimum performance. For ease of use, the buffered, high impedance, single-ended reference input is converted on-chip to a differential reference for use by the processing circuitry. Output data format is 12-bit offset binary. This device is available in the 32-lead LQFP package and will operate over the industrial temperature range of −40°C to +85°C. Key Specification Resolution 12 Bits Conversion Rate 20 MSPS (min) DNL ±0.35 LSB (typ) ENOB (fIN = 10.1 MHz) 11.3 bits (typ) Supply Voltage +5V ±5% Power Consumption, 20 MHz 185 mW (typ) Applications • Image Processing Front End • Instrumentation • PC-Based Data Acquisition • Fax Machines • Waveform Digitizers • Sonar/Radar • DSP Front Ends

Also Recommended ADC12040▲ For Higher Speed LMH6552 For Analog Input Amplifier MY BRIEFCASE                                       Click any "Briefcase" icon to add an item

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

Datasheet

Title		Size	Date	Other Language
	ADC12020 12-Bit, 20 MSPS, 185 mW A/D Converter with Internal Sample-and-Hold	492 Kbytes	28-Jul-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

More Application Notes

Title		Size	Date	Other Language
	AN-769: Dynamic Specifications for Sampling A/D Converters	128 Kbytes	5-Aug-95

Part Number(s) (NSID)	Top View	Availability	Current Reported Stock	Budgetary Pricing	Standard Pack Size
ADC12020CIVY/NOPB RoHS		Full production Lead Time: 16 weeks	Distributor Region Qty DIGIKEY Worldwide 181 FARNELL Europe and Asia 15 RS COMPONENTS Worldwide 64	$6.75 each at 1K+ pcs	tray of 250

Obsolete Versions

Obsolete Part	Alternate Part or Supplier	Source	Last Time Buy Date
ADC12020CIVYX	NONE	NATIONAL SEMICONDUCTOR	16 Nov 2008

Design Tools

Title	Size	Date
Evaluation Boards & Development Systems

Reliability Metrics

Part Number	Process	EFR Reject	EFR Sample Size	PPM	LTA Rejects	LTA Device Hours	FITS	MTTF (Hours)
ADC12020CIVY	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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Obsolete Versions

Obsolete Part	Alternate Part or Supplier	Source	Last Time Buy Date
ADC12020CIVYX	NONE	NATIONAL SEMICONDUCTOR	16 Nov 2008