Features True Simultaneous Sampling Differential Inputs Guaranteed performance from 50 kSPS to 200 kSPS External Reference Wide Input Common-Mode Voltage Range Single High-Speed Serial Data Output Operating Temperature Range of −40°C to +105°C SPI™/QSPI™/MICROWIRE™/DSP compatible Serial Interface Description The ADC122S625 is a dual 12-bit, 50 kSPS to 200 kSPS simultaneous sampling Analog-to-Digital (A/D) converter. The analog inputs on both channels are sampled simultaneously to preserve their relative phase information to each other. The converter is based on a successive-approximation register architecture where the differential nature of the analog inputs is maintained from the internal track-and-hold circuits throughout the A/D converter to provide excellent common-mode signal rejection. The ADC122S625 features an external reference that can be varied from 1.0V to VA. The ADC122S625's serial data output is binary 2's complement and is compatible with several standards, such as SPI™, QSPI™, MICROWIRE™, and many common DSP serial interfaces. The serial clock (SCLK) and chip select bar ( ^CS) are shared by both channels. Operating from a single 5V analog supply and a reference voltage of 2.5V, the total power consumption while operating at 200 kSPS is typically 8.6 mW. With the ADC122S625 operating in power-down mode, the power consumption reduces to 2.6 µW. The differential input, low power consumption, and small size make the ADC122S625 ideal for direct connection to sensors in motor control applications. Operation is guaranteed over the industrial temperature range of −40°C to +105°C and clock rates of 1.6 MHz to 6.4 MHz. The ADC122S625 is available in a 10-lead MSOP package. Key Specification Conversion Rate 50 kSPS to 200 kSPS INL ±1 LSB (max) DNL ±0.95 LSB (max) SNR 71 dBc (min) THD -72 dBc (min) ENOB 11.25 bits (min) Power Consumption at 200 kSPS  Converting, VA = 5V, VREF = 2.5V 8.6 mW (typ)  Power-Down, VA = 5V, VREF = 2.5V 2.6 µW (typ) Applications Motor Control Power Meters/Monitors Multi-Axis Positioning Systems Instrumentation and Control Systems Data Acquisition Systems Medical Instruments Direct Sensor Interface

current transducer application

Typical Application click for larger image current transducer application	Block Diagram click for larger image
Typical Performance click for larger image typical DNL plot

Parameters Values Pin and Function Compatible Family 2 ch, MSOP-10 Resolution 12 bits Input Channels 2 Sample Rate Range (sps) 50ksps - 200ksps Interface Type SPI/QSPI/Microwire Differential Input Yes INL (LSB) ±1.0 DNL (LSB) ± 0.95 ENOB 11.25 bits SINAD 69.5 dB SNR 71 dB Max KSample Rate 200 ksps Min Supply Voltage 4.5 Volt Max Supply Voltage 5.5 Volt Reference Source External Temperature Min -40 deg C Temperature Max 105 deg C Power Down Yes Input Sample/Hold Yes Special Features dual simultaneous input Data Converter Type ADC Max Sample Rate 0.200 MSPS

Datasheets

Title		Size	Date	Other Language
	ADC122S625 Dual 12-Bit, 50 kSPS to 200 kSPS, Simultaneous Sampling A/D Converter	500 Kbytes	25-Feb-08

Part Number(s) (NSID)	Top View	Availability	Current Reported Stock	Budgetary Pricing	Pack Size
ADC122S625CIMM/NOPB RoHS Status	MINI SOIC	Full production Lead Time: 6 weeks	Distributor Region Qty AVNET-EM Worldwide 1000 DIGI-KEY Worldwide 1123 MOUSER Worldwide 1000 RS COMPONENTS Worldwide 10	$2.70 each at 1K+ pcs	reel of 1000
ADC122S625CIMMX/NOPB RoHS Status	MINI SOIC	Full production Lead Time: 8 weeks	Distributor Region Qty DIGI-KEY Worldwide 0	$2.70 each at 1K+ pcs	reel of 3500

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 ADC122S625.

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 ADC122S625 is located at RoHS Status.

Part Number(s) (NSID)	Description	Availability	Current Reported Stock	Budgetary Pricing	Pack Size
ADC122S625EB/NOPB	Dual 12-Bit, 200 kSPS to 500 kSPS, Simultaneous Sampling A/D Converter	Full production Lead Free (RoHS)	Distributor Region Qty DIGI-KEY Worldwide 0	$120.00 each	1
Description: The ADC122S625EB features a dual 12-bit, 50kSPS to 200kSPS simultaneous sampling Analog-to-Digital (A/D) converter. The ADC122S625EB can be used in manual or computer mode. In manual mode, a pattern generator or controller is used to interface with the ADC122S625. In order to interface this board to a PC, a WaveVision (WV) Data Capture Board, version 4.1 or higher, is required. The WV Data Capture Board requires WaveVision software version 4.4 or higher for the ADC122S625EB to be recognized automatically by the WV software. Features: True Simultaneous Sampling Differential Inputs Guaranteed performance from 50kSPS to 200kSPS External Reference Wide Input Common-Mode Voltage Range Operating Temperature Range of -40°C to 105LC Single High-Speed Serial Data Output 10?Lead MSOP Contents: Evaluation Board Users 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
ADC122S625CIMM/NOPB	29.841	MINI SOIC	10	1	260	Detail	Download	N/A	ZXTT X35C
ADC122S625CIMMX/NOPB	29.841	MINI SOIC	10	1	260	Detail	Download	N/A	ZXTT X35C

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 ADC122S625.

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 ADC122S625 is located at RoHS Status.

CAD Symbols and Models Download ADC122S625 CAD Symbols

Models N/A

Reliability Metrics

Part Number	Process	EFR Reject	EFR Sample Size	PPM	LTA Rejects	LTA Device Hours	FITS	MTTF (Hours)
ADC122S625CIMM	CMOS7	0	21301	0	0	1584000	3	449464325
ADC122S625CIMMX	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 ADC122S625.

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 ADC122S625 is located at RoHS Status.

Motor Control Sensing in Factory Automation Loading video... Data Acquisition In Factory Automation Loading video... Factory Automation Overview Loading video...

Motor Control Sensing in Factory Automation Date: 2009-08-04 Length: 0:24:21 Data Acquisition In Factory Automation Date: 2009-08-24 Length: 0:31:29 Factory Automation Overview Date: 2009-08-04 Length: 0:32:30