Features • Single +5V supply operation • Internal sample-and-hold • Outputs 2.35V to 5V compatible • Pin Compatible with ADC12010, ADC12020, ADC12L063, ADC12L066 • Power down mode • On-chip reference buffer Description The ADC12040 is a monolithic CMOS analog-to-digital converter capable of converting analog input signals into 12-bit digital words at 40 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 340 mW at 40 MSPS, including the reference current. The Power Down feature reduces power consumption to 40 mW. The differential inputs provide a full scale differential input swing equal to 2VREF with the possibility of a single-ended input, although full use of the differential input is required 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 Supply Voltage +5V ±5% DNL ±0.4 LSB (typ) SNR (fIN = 10MHz) 69 dB (typ) ENOB (fIN = 10MHz) 11.2 bits (typ) Power Consumption, 40 MHz 340 mW (typ) Applications • Ultrasound and Imaging • Instrumentation • Cellular Base Stations/Communications Receivers • Sonar/Radar • xDSL • Wireless Local Loops/Cable Modems • HDTV/DTV • DSP Front Ends

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

Datasheet

Title		Size	Date	Other Language
	ADC12040 12-Bit, 40 MSPS, 340mW A/D Converter with Internal Sample-and-Hold	453 Kbytes	28-Jul-08	日本語

Featured 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

More Application Notes

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

Design Tools

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Reliability Metrics

Part Number	Process	EFR Reject	EFR Sample Size	PPM	LTA Rejects	LTA Device Hours	FITS	MTTF (Hours)
ADC12040CIVY	CMOS7	0	18406	0	0	1089000	4	309006723
ADC12040CIVYX	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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