Datasheet > ADC12L030_06

ADC12L030_06

更新时间： 2024-11-26 04:10:27

品牌	Logo	应用领域
美国国家半导体 - NSC		转换器
页数	文件大小	规格书
35页	1238K
描述
3.3V Self-Calibrating 12-Bit Plus Sign Serial I/O A/D Converters with MUX and Sample/Hold

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ADC12L030_06 数据手册

OBSOLETE

September 2006

ADC12L030/ADC12L032/ADC12L034/ADC12L038

3.3V Self-Calibrating 12-Bit Plus Sign Serial I/O A/D

Converters with MUX and Sample/Hold

General Description

Features

n 0V to 3.3V analog input range with single 3.3V supply

n Serial I/O ( MICROWIRE and SPI Compatible)

n 2 or 8 channel differential or single-ended multiplexer

n Power down mode

NOTE: These products are now obsolete.

The ADC12L030 family is 12-bit plus sign successive ap-

proximation A/D converters with serial I/O and configurable

input multiplexers. These devices are fully tested with a

single 3.3V power supply. The ADC12L032, ADC12L034 and

ADC12L038 have 2, 4 and 8 channel multiplexers, respec-

tively. Differential multiplexer outputs and A/D inputs are

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

pins. The ADC12L030 has a two channel multiplexer with the

multiplexer outputs and A/D inputs internally connected. On

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

n Programmable acquisition time

n Variable digital output word length and format

n No zero or full scale adjustment required

Key Specifications

n Resolution

12-bit plus sign

8.8 µs (min)

73 kHz (max)

1 LSB (max)

3.3V 10%

that adjusts linearity, zero and full-scale errors to less than

n 12-bit plus sign conversion time

n 12-bit plus sign sampling rate

n Integral linearity error

n Single supply

n Power consumption, active

n Power consumption, pwr down

⁄2 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 +3.3V) can be accommodated with a single

+3.3V 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 two’s compliment

output data format.

15 mW (max)

40 µW (typ)

Applications

n Portable Medical instruments

n Portable computing

The serial I/O is configured to comply with NSC’s

n Portable Test equipment

™

MICROWIRE and Motorola’s SPI standards. For voltage

references, see the LM4040, LM4050 or LM4041 data

sheets.

The ADC12L032 and the ADC12L034 are not recommended

for new designs and are presented for reference only.

ADC12L038 Simplified Block Diagram

01183001

™

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

™

Microsoft is a trademark of Microsoft Corporation.

DS011830

www.national.com

12 3 4 5 6 7...35

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与ADC12L030_06相关器件

型号	品牌	获取价格	描述	数据表
ADC12L030CIN	TI	获取价格	2-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDIP16, 0.300 INCH, PLASTIC, DIP-
ADC12L030CIWM	NSC	获取价格	3.3V Self-Calibrating 12-Bit Plus Sign Serial I/O A/D Converters with MUX and Sample/Hold
ADC12L030CIWM/NOPB	TI	获取价格	2-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO16, SOP-16
ADC12L030CIWMX	ETC	获取价格	Single-Ended Data Acquisition System
ADC12L032	NSC	获取价格	3.3V Self-Calibrating 12-Bit Plus Sign Serial I/O A/D Converters with MUX and Sample/Hold
ADC12L032CIN	TI	获取价格	2-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDIP20, 0.300 INCH, PLASTIC, DIP-
ADC12L032CIWM	NSC	获取价格	3.3V Self-Calibrating 12-Bit Plus Sign Serial I/O A/D Converters with MUX and Sample/Hold
ADC12L032CIWM/NOPB	TI	获取价格	2-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO20
ADC12L032CIWMX	ETC	获取价格	Single-Ended Data Acquisition System
ADC12L034	NSC	获取价格	3.3V Self-Calibrating 12-Bit Plus Sign Serial I/O A/D Converters with MUX and Sample/Hold

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