Features Eight input channels Variable power management Independent analog and digital supplies SPI™/QSPI™/MICROWIRE™/DSP compatible Packaged in 16-lead TSSOP Description The ADC128S022 is a low-power, eight-channel CMOS 12-bit analog-to-digital converter specified for conversion throughput rates of 50 ksps to 200 ksps. The converter is based on a successive-approximation register architecture with an internal track-and-hold circuit. It can be configured to accept up to eight input signals at inputs IN0 through IN7. The output serial data is straight binary and is compatible with several standards, such as SPI, QSPI, MICROWIRE, and many common DSP serial interfaces. The ADC128S022 may be operated with independent analog and digital supplies. The analog supply (VA) can range from +2.7V to +5.25V, and the digital supply (VD) can range from +2.7V to VA. Normal power consumption using a +3V or +5V supply is 1.2 mW and 7.5 mW, respectively. The power-down feature reduces the power consumption to 0.06 µW using a +3V supply and 0.25 µW using a +5V supply. The ADC128S022 is packaged in a 16-lead TSSOP package. Operation over the extended industrial temperature range of −40°C to +105°C is guaranteed. Key Specification Conversion Rate 50 ksps to 200 ksps DNL (VA = VD = 5.0 V) +1.0 / −0.7 LSB (max) INL (VA = VD = 5.0 V) ±1.0 LSB (max) Power Consumption 3V Supply 1.2 mW (typ) 5V Supply 7.5 mW (typ) Applications Automotive Navigation Portable Systems Medical Instruments Mobile Communications Instrumentation and Control Systems

Also Recommended ADC088S022▲ For 8 Bits ADC108S022▲ For 10 Bits ADC128S052▲ For Speeds From 200Ksps To 500Ksps ADC128S102▲ For Speeds From 500Ksps To 1Msps Typical Application Circuit

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

Parameters / Values	ADC128S022	ADC088S022	ADC108S022	ADC128S052	ADC128S102
Pin and Function Compatible Family	8 ch, TSSOP-16	8 ch, TSSOP-16	8 ch, TSSOP-16	8 ch, TSSOP-16	8 ch, TSSOP-16
Resolution	12 bits	8 bits	10 bits	12 bits	12 bits
Input Channels	8	8	8	8	8
Sample Rate Range (sps)	50k to 200k	50k to 200k	50k to 200k	200k to 500k	500k to 1M
Interface Type	SPI / QSPI / Microwire	SPI / QSPI / Microwire	SPI / QSPI / Microwire	SPI / QSPI / Microwire	SPI / QSPI / Microwire
Differential Input	No	No	No	No	No
Power Down, typ. at 3.6V	0.06 uW	0.03 uW	0.09 uW	0.06 uW	0.06 uW
Operating Power, typ at 3.6V, max ksps	0.017 mW	0.011 mW	0.014 mW	0.007 mW	0.005 mW
Operating Power, 3.6V, 1ksps, max. PwrDn	1.2 mW	0.9 mW	1.1 mW	1.6 mW	2.3 mW
PowerWise Rating 1	0.21 pJ/conv	2.35 pJ/conv	0.67 pJ/conv	0.11 pJ/conv	0.08 pJ/conv
INL (LSB)	+/-0.4	+/-0.04	+/-0.10	+/-0.4	+/-0.5
DNL (LSB)	+0.5; -0.3	+/-0.04	+/-0.10	+0.6; -0.4	+0.7; -0.4
ENOB	11.8 bits	7.9 bits	10 bits	11.8 bits	11.8 bits
SINAD	73 dB	49.5 dB	61.8 dB	73 dB	73 dB
SNR	73 dB	49.5 dB	61.9 dB	73 dB	73 dB
Max KSample Rate	200 ksps	200 ksps	200 ksps	500 ksps	1000 ksps
Min Supply Voltage	2.7 Volt	2.7 Volt	2.7 Volt	2.7 Volt	2.7 Volt
Max Supply Voltage	5.25 Volt	5.25 Volt	5.25 Volt	5.25 Volt	5.25 Volt
Reference Source	Supply	Supply	Supply	Supply	Supply
Temperature Min	-40 deg C	-40 deg C	-40 deg C	-40 deg C	-40 deg C
Temperature Max	105 deg C	105 deg C	105 deg C	125 deg C	105 deg C
Power Down	Yes	Yes	Yes	Yes	Yes
Input Sample/Hold	Yes	Yes	Yes	Yes	Yes
Special Features	Undefined	Undefined	Undefined	Undefined	Undefined
Data Converter Type	ADC	ADC	ADC	ADC	ADC
Max Sample Rate	0.2 MSPS	0.2 MSPS	0.2 MSPS	0.5 MSPS	1 MSPS
Automotive	Yes			Yes	Yes
PowerWise	Yes	Yes	Yes	Yes	Yes

Datasheets

Title		Size	Date	Other Language
	ADC128S022 8-Channel, 50 ksps to 200 ksps, 12-Bit A/D Converter	437 Kbytes	28-Jan-11

Part Number(s) (NSID)	Top View	Availability	Current Reported Stock	Budgetary Pricing	Pack Size
ADC128S022CIMT/NOPB ADC128S022CIMT RoHS Status	TSSOP	Full production Lead Time: 6 weeks	Distributor Region Qty ARROW Worldwide 374 AVNET-EM Worldwide 460 DIGI-KEY Worldwide 1997 FARNELL Europe and Asia 767 MOUSER Worldwide 159 NEWARK Americas 9 RS COMPONENTS Worldwide 25 TAYLOR Americas 374	$2.25 each at 1K+ pcs	rail of 92
ADC128S022CIMTX/NOPB ADC128S022CIMTX RoHS Status	TSSOP	Full production Lead Time: 6 weeks	Distributor Region Qty DIGI-KEY Worldwide 0	$2.25 each at 1K+ pcs	reel of 2500

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 ADC128S022.

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 ADC128S022 is located at RoHS Status.

Part Number(s) (NSID)	Description	Availability	Current Reported Stock	Budgetary Pricing	Pack Size
ADC128S022EVAL/NOPB	8-Channel, 50 kSPS to 200 kSPS, 12-Bit A/D Converter	Full production Lead Free (RoHS)	Distributor Region Qty DIGI-KEY Worldwide 0	$120.00 each	1
Description: The ADC128S022EVAL Design Kit (consisting of the ADC128S022 Evaluation Board and this User`s Guide) is designed to ease evaluation and design-in of National Semiconductor`s eight-channel, low-power CMOS Analog-to-Digital Converter (ADC128S022). In Stand-alone mode, suitable test equipment, such as a function generator and logic analyzer, can be used with the board to evaluate the ADC128S022. The Analog input signal enters the Analog-to-Digital Converter through one of its eight selectable input channels and is converted into a digital stream of bits by the ADC128S022. Contents: Fully assembled ADC128S022 Evaluation Board Instruction Manual ADC128S022 Data Sheet *** For evaluation with WaveVision4, purchase a WV4ADCIFCABLE cable. ***

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
ADC128S022CIMT/NOPB ADC128S022CIMT	56.74 57	TSSOP	16	1 1	260 260	Detail	Download	N/A	NSUZXYTT 128S022 CIMT
ADC128S022CIMTX/NOPB ADC128S022CIMTX	56.74 57	TSSOP	16	1 1	260 260	Detail	Download	N/A	NSUZXYTT 128S022 CIMT

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 ADC128S022.

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 ADC128S022 is located at RoHS Status.

Design Tools

Title	Size	Date
Evaluation Boards & Development Systems

CAD Symbols and Models Download ADC128S022 CAD Symbols

Models N/A

Reliability Metrics

Part Number	Process	EFR Reject	EFR Sample Size	PPM	LTA Rejects	LTA Device Hours	FITS	MTTF (Hours)
ADC128S022CIMT	CMOS7	0	21301	0	0	1584000	3	449464325
ADC128S022CIMTX	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 ADC128S022.

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 ADC128S022 is located at RoHS Status.

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