Features 8-channel programmable Differential or Single-Ended multiplexer Programmable Acquisition Times and user-controllable Throughput Rates Programmable data bus width (8/13 bits) Built-in Sample-and-Hold Programmable Auto-Calibration and Auto-Zero cycles Low power standby mode No missing codes Description Operating from a single 5V power supply, the ADC12048 is a 12 bit + sign, parallel I/O, self-calibrating, sampling analog-to-digital converter (ADC) with an eight input fully differential analog multiplexer. The maximum sampling rate is 216 kHz. On request, the ADC goes through a self-calibration process that adjusts linearity, zero and full-scale errors. The ADC12048's 8-channel multiplexer is software programmable to operate in a variety of combinations of single-ended, differential, or pseudo-differential modes. The fully differential MUX and the 12-bit + sign ADC allows for the difference between two signals to be digitized. The ADC12048 can be configured to work with many popular microprocessors/microcontrollers and DSPs including National's HPC family, Intel386 and 8051, TMS320C25, Motorola MC68HC11/16, Hitachi 64180 and Analog Devices ADSP21xx. For complementary voltage references see the LM4040, LM4041 or LM9140. Key Specification (fCLK = 12 MHz) Resolution 12-bits + sign 13-bit conversion time 3.6 µs, max 13-bit throughput rate 216 ksamples/s, min Integral Linearity Error (ILE) ±1 LSB, max Single Supply +5V ±10% VIN Range GND to VA+ Power consumption Normal operation 34 mW, max Stand-by mode 75 µw, max Applications Medical instrumentation Process control systems Test equipment Data logging Inertial guidance

Also Recommended ADC12038▲ For Serial Output

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

Datasheets

Title		Size	Date	Other Language
	ADC12048 12-Bit Plus Sign 216 kHz 8 Channel Sampling Analog to Digital Converter	719 Kbytes	6-Aug-02

Part Number(s) (NSID)	Top View	Availability	Current Reported Stock	Budgetary Pricing	Pack Size
ADC12048CIV/NOPB ADC12048CIV RoHS Status	PLCC	Full production Lead Time: 6 weeks	Distributor Region Qty ARROW Worldwide 71 AVNET-EM Worldwide 102 DIGI-KEY Worldwide 0 MOUSER Worldwide 50 RS COMPONENTS Worldwide 17 TAYLOR Americas 71	$6.25 each at 1K+ pcs	rail of 25
ADC12048CIVF/NOPB ADC12048CIVF RoHS Status	PQFP	Full production Lead Time: 12 weeks	Distributor Region Qty ARROW Worldwide 142 AVNET-EM Worldwide 11154 DIGI-KEY Worldwide 2 FARNELL Europe and Asia 17 MOUSER Worldwide 56 NEWARK Americas 16 TAYLOR Americas 142	$6.25 each at 1K+ pcs	tray of 96

Obsolete Versions

Obsolete Part	Alternate Part or Supplier	Source	Last Time Buy Date
ADC12048EVAL	NONE	NONE	07 Jun 2000

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 ADC12048.

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 ADC12048 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
ADC12048CIV/NOPB ADC12048CIV	2214.83 2220	PLCC	44	3 2A	245 220	Detail	Download	N/A	NSUZXYYTTE# ADC12048CIV
ADC12048CIVF/NOPB ADC12048CIVF	481.792 484.003	PQFP	44	3 3	260 260	Detail	Download	N/A	NSUZXYYTTE# ADC12048 CIVF DIE RUN# =

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 ADC12048.

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 ADC12048 is located at RoHS Status.

Design Tools

Title	Size	Date
National's WaveVision™ evaluation software for Microsoft Windows	344 Kbytes	17-Jun-1996

CAD Symbols and Models Download ADC12048 CAD Symbols

Models N/A

Reliability Metrics

Part Number	Process	EFR Reject	EFR Sample Size	PPM	LTA Rejects	LTA Device Hours	FITS	MTTF (Hours)
ADC12048CIV	TS100	0	8370	0	0	900000	4	255377457
ADC12048CIVF	TS100	0	8370	0	0	900000	4	255377457

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 ADC12048.

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 ADC12048 is located at RoHS Status.

Obsolete Versions

Obsolete Part	Alternate Part or Supplier	Source	Last Time Buy Date
ADC12048EVAL	NONE	NONE	07 Jun 2000