ADC12130CIWMX datasheet(1/42 Pages) NSC

No de pièce	ADC12130CIWMX

Description	Self-Calibrating 12-Bit Plus Sign Serial I/O A/D Converters with MUX and Sample/Hold

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Fabricant	NSC [National Semiconductor (TI)]

Site Internet	http://www.national.com

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ADC12130/ADC12132/ADC12138

Self-Calibrating 12-Bit Plus Sign Serial I/O A/D

Converters with MUX and Sample/Hold

General Description

NOTE: All versions of the ADC12132 are obsolete and

shown here for reference only.

The ADC12130, ADC12132 and ADC12138 are 12-bit plus

sign successive approximation A/D converters with serial I/O

and configurable input multiplexer. The ADC12132 and

ADC12138 have a 2 and an 8 channel multiplexer, respec-

tively. The differential multiplexer outputs and A/D inputs are

available on the MUXOUT1, MUXOUT2, A/DIN1 and A/DIN2

pins. The ADC12130 has a two channel multiplexer with the

multiplexer outputs and A/D inputs internally connected. The

ADC12130 family is tested and specified with a 5 MHz clock.

On request, these A/Ds go through a self calibration process

that adjusts linearity, zero and full-scale errors to typically

less than ±1 LSB each.

The analog inputs can be configured to operate in various

combinations of single-ended, differential, or pseudo-

differential modes. A fully differential unipolar analog input

range (0V to +5V) can be accommodated with a single +5V

supply. In the differential modes, valid outputs are obtained

even when the negative inputs are greater than the positive

because of the 12-bit plus sign output data format.

The ADC12132 is obsolete and described in this document

for reference only.

The serial I/O is configured to comply with NSC MICROW-

IRE™. For voltage references, see the LM4040, LM4050 or

LM4041.

Features

n

Serial I/O (MICROWIRE, SPI and QSPI Compatible)

n

Power down mode

n

Programmable acquisition time

n

Variable digital output word length and format

n

No zero or full scale adjustment required

n

0V to 5V analog input range with single 5V power

supply

Key Specifications

Resolution

12-bit plus sign

j 12-Bit plus sign conversion time

8.8 µs (max)

j 12-Bit plus sign throughput time

14 µs (max)

j Integral Linearity Error

±2 LSB (max)

j Single Supply

3.3V or 5V ±10%

j Power Consumption

+3.3V

15 mW (max)

+3.3V power down

40 µW (typ)

+5V

33 mW (max)

+5V power down

100 µW (typ)

Applications

n

Pen-based computers

n

Digitizers

n

Global positioning systems

TRI-STATE® is a registered trademark of National Semiconductor Corporation.

COPS™ microcontrollers, HPC™ and MICROWIRE™ are trademarks of National Semiconductor Corporation.

April 2006

DS012079

www.national.com

Numéro de pièce similaire - ADC12130CIWMX

Fabricant	No de pièce	Fiches technique	Description
Texas Instruments	ADC12130CIWMX	2Mb / 52P	[Old version datasheet] ADC12130/ADC12132/ADC12138 Self-Calibrating 12-Bit Plus Sign Serial I/O A/D Converters with MUX and Sample/Hold
Texas Instruments	ADC12130CIWMX/NOPB	2Mb / 51P	[Old version datasheet] Self-Calibrating 12-Bit Plus Sign Serial I/O A/D Converters with MUX and Sample/Hold

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