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

Also Recommended ADC12D040▲ For Dual ADC LMH6552 For Analog Input Amplifier

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

Parameters / Values	ADC12040	ADC12D040
Resolution	12 bits	12 bits
Channels	1 Channels	2 Channels
Max Sample Rate	40 MSPS	40 MSPS
Min Supply Voltage	4.75 Volt	4.75 Volt
Max Supply Voltage	5.25 Volt	5.25 Volt
Power Dissipation	0.34 Watt	0.6 Watt
Nominal Vin	4 Vpp	4 Vpp
INL (+/-)	0.7 LSB	0.7 LSB
DNL (+/-)	0.4 LSB	0.4 LSB
ENOB	11.2 bits	10.9 bits
SINAD	69.5 dB	68 dB
SNR	70 dB	68 dB
SFDR	86 dB	80 dB
Min Sample Rate	0.1 MSPS	0.1 MSPS
THD dB	-82 dB	-78 dB
PowerWise Rating 1	3.61 pJ/conv	3.92 pJ/conv
Temperature Min	-40 deg C	-40 deg C
Temperature Max	85 deg C	85 deg C
Data Converter Type	ADC	ADC
PowerWise	No	No

Datasheets

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

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

Other Technical Documents

Title		Type	Date
	Power Supply Effects on Signal Path Noise Performance	App Note	2003-03-06

Part Number(s) (NSID)	Top View	Availability	Current Reported Stock	Budgetary Pricing	Pack Size
ADC12040CIVY/NOPB ADC12040CIVY RoHS Status	LQFP	Full production Lead Time: 6 weeks	Distributor Region Qty AVNET-EM Worldwide 234 DIGI-KEY Worldwide 169 MOUSER Worldwide 250	$9.00 each at 1K+ pcs	tray of 250
ADC12040CIVYX/NOPB RoHS Status	LQFP	Full production Lead Time: 6 weeks	Distributor Region Qty DIGI-KEY Worldwide 0	$9.00 each at 1K+ pcs	reel of 1000

All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/en/packaging/leadfree.html.

Moisture Sensitivity Level Data for ADC12040.

A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/en/packaging/greennopb.html.

National's certificate of product compliance for ADC12040 is located at RoHS Status.

Part Number(s) (NSID)	Description	Availability	Current Reported Stock	Budgetary Pricing	Pack Size
ADC12040EVAL	12-Bit, 40 MSPS, 340mW A/D Converter with Internal Sample-and-Hold	Full production	Distributor Region Qty DIGI-KEY Worldwide 0	$232.00 each	1
Description: The ADC12040 is a 12-Bit, 40 MSPS, 340mW A/D Converter with internal Sample-and-Hold which is offered in a 32-lead LQFP and is designed to operate over the industrial temperature range of -40°C to +85°C. This evaluation board is designed to ease the evaluation and design-in of National Semiconductor's 40 Msps ADC12040 Analog-to-Digital Converter. The Board can be used in either of two modes. In the Manual or Stand-alone mode the board can be used with suitable test equipment to evaluate the ADC12040's performance. In the Computer or Automatic mode, evaluation is simplified by connecting the board to the WaveVision Digital Interface Board (order number WAVEVSN BRD 3.0), which in turn is connected to a personal computer through a serial communication port, and using National Semiconductor's WaveVision software. This software operates under Microsoft Windows. Features: 11.2 ENOB Single +5V Supply Operation Internal Sample-and-hold Outputs 2.5V to 5V Compatible On-Chip Reference Buffer TTL/CMOS Compatible Input/Outputs Low Power Consumption Power Down Mode Contents: Fully assembled ADC10240 Evaluation Board Instruction Manual ADC12040 Data Sheet

National Semiconductor follows the provisions of the Product Stewardship Guide for Customers (CSP-9-111C1) and Banned Substances and Materials of Interest Specification (CSP-9-111S2) for regulatory environmental compliance. Details may be found at: www.national.com/en/packaging/greennopb.html. Lead free products are RoHS compliant.

Lead Free product status is available through the search tool located here

Part Number(s) (NSID)	Weight (milligrams)	Type	Pins	MSL Rating	Peak Reflow	RoHS Status	CAD Symbols	Models	Package Marking Format
ADC12040CIVY/NOPB ADC12040CIVY	181.501 182.012	LQFP	32	3 3	260 260	Detail	Download	N/A	NSUZXYTT ADC12040 CIVY
ADC12040CIVYX/NOPB	181.501 182.012	LQFP	32	3	260	Detail	Download	N/A	NSUZXYTT ADC12040 CIVY

All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/en/packaging/leadfree.html.

Moisture Sensitivity Level Data for ADC12040.

A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/en/packaging/greennopb.html.

National's certificate of product compliance for ADC12040 is located at RoHS Status.

Design Tools

Title	Size	Date
Evaluation Boards & Development Systems

CAD Symbols and Models Download ADC12040 CAD Symbols

Models N/A

Reliability Metrics

Part Number	Process	EFR Reject	EFR Sample Size	PPM	LTA Rejects	LTA Device Hours	FITS	MTTF (Hours)
ADC12040CIVY	CMOS7	0	21301	0	0	1584000	3	449464325
ADC12040CIVYX	CMOS7	0	21301	0	0	1584000	3	449464325

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.

For more information on Reliability Metrics, please click here.

All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/en/packaging/leadfree.html.

Moisture Sensitivity Level Data for ADC12040.

A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/en/packaging/greennopb.html.

National's certificate of product compliance for ADC12040 is located at RoHS Status.