adc12041 National Semiconductor Corporation, adc12041 Datasheet

adc12041

Manufacturer Part Number

adc12041

Description

12-bit Plus Sign 216 Khz Sampling Analog-to-digital Converter

Manufacturer

National Semiconductor Corporation

Datasheet

1.ADC12041.pdf (28 pages)

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ADC12041

12-Bit Plus Sign 216 kHz Sampling Analog-to-Digital

Converter

General Description

Operating from a single 5V power supply, the ADC12041 is a

12 bit + sign, parallel I/O, self-calibrating, sampling

analog-to-digital converter (ADC). 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 ADC12041 can be configured to work with many popular

microprocessors/microcontrollers and DSPs including Na-

tional’s HPC family, Intel386 and 8051, TMS320C25, Mo-

torola MC68HC11/16, Hitachi 64180 and Analog Devices

ADSP21xx.

For complementary voltage references see the LM4040,

LM4041 or LM9140.

Features

n Fully differential analog input

n Programmable acquisition times and user-controllable

n Programmable data bus width (8/13 bits)

n Built-in Sample-and-Hold

n Programmable auto-calibration and auto-zero cycles

Block Diagram

TRI-STATE

throughput rates

is a registered trademark of National Semiconductor Corporation.

DS012441

n Low power standby mode

n No missing codes

Key Specifications

n Resolution

n 13-bit conversion time

n 13-bit throughput rate

n Integral Linearity Error (ILE)

n Single supply

n V

n Power consumption

Applications

n Medical instrumentation

n Process control systems

n Test equipment

n Data logging

n Inertial guidance

CLK

— Normal operation

— Stand-by mode

= 12 MHz)

range

216 ksamples/s, min

12-bits + sign

www.national.com

33 mW, max

GND to V

3.6 µs, max

1 LSB, max

+5V

75 µw, max

April 2000

DS012441-1

10%

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