Features Xignal ™ CT ∑Δ ADC technology 40-50MSPS sampling rate Anti-alias filter free Nyquist sample range Unique Instant Overload Recovery (IOR) Wide 2.10 VPP input range 1.2V supply voltage Integrated precision LC PLL Serial control via SPI compatible interface Description The ADC12EU050 is a 12-bit, ultra-low power, octal A/D converter for use in high performance analog to digital applications. The ADC12EU050 uses an innovative continuous time sigma delta architecture offering ultra low power consumption and an alias free sample bandwidth up to 25MHz. The input stage of each channel features a proprietary system to ensure instantaneous recovery from overdrive. Instant overload recovery (IOR) with no memory effect guarantees the elimination of phase errors resulting from out of range input signals. The ADC12EU050 reduces interconnection complexity by using programmable serialized outputs which offer the industry standard LVDS and SLVS modes. Power consumption of only 48mW per channel @ 50MSPS gives a total chip power consumption of 384mW. The ADC12EU050 can operate entirely from a 1.2V supply, although a separate output driver supply of up to 1.8V can be used. The device operates from -40 to +85 °C and is supplied in a 10 x 10 mm 2, 68 pin package. Key Specification Resolution 12 Bits Conversion Rate 40 to 50 MSPS SNR 69.3 dBFS (typ) @ 50 MSPS fIN = 4.4MHz THD –76.6 dB (typ) @ 50 MSPS fIN = 4.4MHz Per Channel Power 48 mW/ch (typ) @ 50MSPS Total Active Power 385 mW (typ) @ 50MSPS Inter-Channel Isolation >110 dB @ fIN = 4.4MHz Operating Temp. Range -40 to +85 °C Applications Medical imaging, ultrasound Industrial ultrasound, such as non-destructive testing Communications Battery powered portable systems

Also Recommended ADC12QS065▲ Quad Channel, Higher Speed ADC Solution LM6211 RRO Operational Amplifier With CMOS Input And 24V Operation LMH6702 Low Distortion, Wide Bandwidth ADC Driver LMK04031 Low-jitter Clock Conditioner With Integrated VCO LP3878-ADJ Low Noise Linear Regulator LP5900 Low Noise Linear Regulator ADC12EU050 Application Diagram

Typical Application *click for larger image ADC12EU050 Application Diagram	Block Diagram *click for larger image ADC12EU050 Block Diagram
Typical Performance *click for larger image FFT 40MSPS ADC Fin=10MHz Dev1 Ch1 Date091808

Parameters / Values	ADC12EU050	ADC12QS065
Resolution	12 bits	12 bits
Channels	8 Channels	4 Channels
Max Sample Rate	50 MSPS	65 MSPS
Min Supply Voltage	1.14 Volt	3.0 Volt
Max Supply Voltage	1.26 Volt	3.6 Volt
Power Dissipation	0.32 Watt	0.83 Watt
Nominal Vin	2 Vpp	2 Vpp
INL (+/-)	2 LSB	0.7 LSB
DNL (+/-)	0.3 LSB	0.3 LSB
ENOB	10.7 bits	11 bits
SINAD	66 dB	69 dB
SNR	70 dB	69.3 dB
SFDR	78 dB	83 dB
Min Sample Rate	40 MSPS	20 MSPS
THD dB	-70 dB	-82 dB
PowerWise Rating 1	0.48 pJ/conv	1.56 pJ/conv
Temperature Min	-40 deg C	-40 deg C
Temperature Max	85 deg C	85 deg C
Data Converter Type	ADC	ADC
PowerWise	Yes	Yes

Datasheets

Title		Size	Date	Other Language
	ADC12EU050 Ultra-Low Power, Octal, 12-bit, 40-50 MSPS Sigma-Delta Analog-to-Digital Converter	926 Kbytes	16-Oct-09

Application Notes

Title		Size	Date	Other Language
	AN-2195: Application Note 2195 Driving High Speed ADCs with the LMH6521 DVGA for High IF AC-Coupled Applications	387 Kbytes	17-Nov-11

Other Technical Documents

Title		Type	Date
	Continuous-Time Sigma-Delta A/D Converters	Signal Path Designer	2008-03-06
	Continuous-Time Sigma-Delta ADCs	App Note	2008-01-24
	Understanding Continuous-Time Sigma-Delta ADCs	External Article	2008-05-27
	Using Continuous Time Delta-Sigma ADCs to Reduce Power Consumption in High-speed Designs	External Article	2007-02-15

Part Number(s) (NSID)	Top View	Availability	Current Reported Stock	Budgetary Pricing	Pack Size
ADC12EU050CIPLQ/NOPB RoHS Status	LLP	Full production Lead Time: 6 weeks	Distributor Region Qty DIGI-KEY Worldwide 58 FARNELL Europe and Asia 76 NEWARK Americas 76	$64.00 each at 1K+ pcs	tray of 168

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 ADC12EU050.

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 ADC12EU050 is located at RoHS Status.

Part Number(s) (NSID)	Description	Availability	Current Reported Stock	Budgetary Pricing	Pack Size
ADC12EU050EB/NOPB	ADC12EU050: Ultra-low Power, Octal, 12-bit, 40-50MSPS Sigma-Delta	Full production Lead Free (RoHS)	Distributor Region Qty DIGI-KEY Worldwide 0 MOUSER Worldwide 1	$785.00 each	1
Description: The evaluation board is designed to be used with the WaveVision5™ Data Capture Board which is connected to a personal computer through a USB port and running WaveVision5™ software, operating under Microsoft Windows. The software can perform an FFT on the captured data upon command and, in addition to a frequency domain plot, shows dynamic performance in the form of SNR, SINAD, THD SFDR and ENOB. Contents: Evaluation Board User`s Guide

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
ADC12EU050CIPLQ/NOPB	294.289	LLP	68	4	260	Detail	Download	N/A	NS UZXYTTE# 12EU050P

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 ADC12EU050.

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 ADC12EU050 is located at RoHS Status.

Design Tools

Title	Size	Date
Evaluation Boards & Development Systems

CAD Symbols and Models Download ADC12EU050 CAD Symbols

Models N/A

PowerWise Products and Metrics -- An Overview Loading video... PowerWise Products and Metrics Loading video... ADC12EU050- Industry's First Continuous Time Sigma-Delta ADC Loading video...

PowerWise Products and Metrics -- An Overview Date: 2008-05-11 Length: 00:13:36 PowerWise Products and Metrics Date: 2008-05-21 Length: 0:5:11 ADC12EU050- Industry's First Continuous Time Sigma-Delta ADC Date: 2008-02-05 Length: 0:2:59