Features Compatible with 8080 µP derivatives-no interfacing logic needed - access time - 135 ns Easy interface to all microprocessors, or operates "stand alone" Differential analog voltage inputs Logic inputs and outputs meet both MOS and TTL voltage level specifications Works with 2.5V (LM336) voltage reference On-chip clock generator 0V to 5V analog input voltage range with single 5V supply No zero adjust required 0.3[Prime] standard width 20-pin DIP package 20-pin molded chip carrier or small outline package Operates ratiometrically or with 5 VDC, 2.5 VDC, or analog span adjusted voltage reference Description The ADC0801, ADC0802, ADC0803, ADC0804 and ADC0805 are CMOS 8-bit successive approximation A/D converters that use a differential potentiometric ladder-similar to the 256R products. These converters are designed to allow operation with the NSC800 and INS8080A derivative control bus with TRI-STATE output latches directly driving the data bus. These A/Ds appear like memory locations or I/O ports to the microprocessor and no interfacing logic is needed. Differential analog voltage inputs allow increasing the common-mode rejection and offsetting the analog zero input voltage value. In addition, the voltage reference input can be adjusted to allow encoding any smaller analog voltage span to the full 8 bits of resolution. Key Specification Resolution 8 bits Total error ±¼ LSB, ±½ LSB and ±1 LSB Conversion time 100 µs

Also Recommended ADC088S102▲ Sample Rate Up To 1 MSPS ADC0801▲ Improved Conversion Accuracy

Datasheets

Title		Size	Date	Other Language
	ADC0803 8-Bit µP Compatible A/D Converters	1130 Kbytes	11-Dec-01	日本語

Application Notes

Title		Size	Date	Other Language
	AN-280: Application Note 280 A/D Converters Easily Interface with 70 Series Microprocessors	134 Kbytes	4-Oct-04
	AN-281: Application Note 281 Data Acquisition Using INS8048	129 Kbytes	4-Oct-04

Part Number(s) (NSID)	Top View	Availability	Current Reported Stock	Budgetary Pricing	Pack Size
ADC0803LCN/NOPB ADC0803LCN RoHS Status	MDIP	Full production Lead Time: 6 weeks	Distributor Region Qty ARROW Worldwide 19 AVNET-EM Worldwide 170 DIGI-KEY Worldwide 180 FARNELL Europe and Asia 340 MOUSER Worldwide 180 NEWARK Americas 174 RS COMPONENTS Worldwide 1 TAYLOR Americas 199	$2.10 each at 1K+ pcs	rail of 18

Obsolete Versions

Obsolete Part	Alternate Part or Supplier	Source	Last Time Buy Date
ADC0803LCJ	NONE	NONE	08 Sep 1998
ADC0803LCV	NONE	NONE	08 Sep 1998
ADC0803LCWM	NONE	NONE	08 Sep 1998
ADC0803LCWMX	NONE	NONE	08 Sep 1998

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 ADC0803.

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 ADC0803 is located at RoHS Status.

Part Number(s) (NSID)	Weight (milligrams)	Type	Pins	MSL Rating	Peak Reflow	RoHS Status	CAD Symbols	Models	Package Marking Format
ADC0803LCN/NOPB ADC0803LCN	1424.649 1429.999	MDIP	20	1 1	NA NA	Detail	Download	N/A	NSUZXYYTTE# ADC0803LCN

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 ADC0803.

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 ADC0803 is located at RoHS Status.

CAD Symbols and Models Download ADC0803 CAD Symbols

Models N/A

Reliability Metrics

Part Number	Process	EFR Reject	EFR Sample Size	PPM	LTA Rejects	LTA Device Hours	FITS	MTTF (Hours)
ADC0803LCN	CMOS	0	20300	0	0	2785000	2	790251354

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 ADC0803.

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 ADC0803 is located at RoHS Status.

Obsolete Versions

Obsolete Part	Alternate Part or Supplier	Source	Last Time Buy Date
ADC0803LCJ	NONE	NONE	08 Sep 1998
ADC0803LCV	NONE	NONE	08 Sep 1998
ADC0803LCWM	NONE	NONE	08 Sep 1998
ADC0803LCWMX	NONE	NONE	08 Sep 1998