Datasheet > MAX1403_02

MAX1403_02

更新时间： 2024-09-22 11:18:39

品牌	Logo	应用领域
美信 - MAXIM		/
页数	文件大小	规格书
36页	513K
描述
+3V, 18-Bit, Low-Power, Multichannel, Oversampling (Sigma-Delta) ADC

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MAX1403_02 数据手册

19-1481; Rev 1; 7/02

+3V, 18-Bit, Low-Power, Multichannel,

Oversampling (Sigma-Delta) ADC

General Description

Features

The MAX1403 18-bit, low-power, multichannel, serial-

output analog-to-digital converter (ADC) features

matched 200µA current sources for sensor excitation.

This ADC uses a sigma-delta modulator with a digital

decimation filter to achieve 16-bit accuracy. The digital

filter’s user-selectable decimation factor allows the con-

version resolution to be reduced in exchange for a

higher output data rate. True 16-bit performance is

achieved at an output data rate of up to 480sps. In

addition, the modulator sampling frequency may be

optimized for either lowest power dissipation or highest

throughput rate. The MAX1403 operates from +3V.

ꢀ 18-Bit Resolution, Sigma-Delta ADC

ꢀ 16-Bit Accuracy with No Missing Codes to 480sps

ꢀ Matched On-Board Current Sources (200µA) for

Sensor Excitation

ꢀ Low Quiescent Current

250µA (operating mode)

2µA (power-down mode)

ꢀ 3 Fully Differential or 5 Pseudo-Differential Signal

Input Channels

ꢀ 2 Additional, Fully Differential Calibration

This device offers three fully differential input channels

that may be independently programmed with a gain

between +1V/V and +128V/V. Furthermore, it can com-

pensate an input-referred DC offset up to 117% of the

selected full-scale range. These three differential chan-

nels may also be configured to operate as five pseudo-

differential input channels. Two additional, fully

differential system-calibration channels are provided for

gain and offset error correction.

Channels/Auxiliary Input Channels

ꢀ Programmable Gain and Offset

ꢀ Fully Differential Reference Inputs

ꢀ Converts Continuously or On Command

ꢀ Automatic Channel Scanning and Continuous

Data Output Mode

ꢀ Operates with Analog and Digital Supplies

The MAX1403 can be configured to sequentially scan all

signal inputs and provide the results via the serial inter-

face with minimum communications overhead. When

used with a 2.4576MHz or 1.024MHz master clock, the

digital decimation filter can be programmed to produce

zeros in its frequency response at the line frequency and

associated harmonics, ensuring excellent line rejection

without the need for further postfiltering.

from +2.7V to +3.6V

ꢀ SPI™/QSPI™-Compatible 3-Wire Serial Interface

ꢀ 28-Pin SSOP Package

Pin Configuration

The MAX1403 is available in a 28-pin SSOP package.

TOP VIEW

CLKIN

CLKOUT

28 SCLK

27 DIN

Applications

26 DOUT

25 INT

Portable Industrial Instruments

Portable Weigh Scales

Loop-Powered Systems

Pressure Transducers

RESET

DS1

MAX1403

DS0

23 DGND

OUT2

OUT1

AGND

22 CALOFF+

21 CALOFF-

20 REFIN+

19 REFIN-

18 CALGAIN+

17 CALGAIN-

16 AIN6

Ordering Information

V+ 10

AIN1 11

AIN2 12

AIN3 13

AIN4 14

PART

TEMP RANGE

0°C to +70°C

-40°C to +85°C

PIN-PACKAGE

28 SSOP

MAX1403CAI

MAX1403EAI

28 SSOP

15 AIN5

SSOP

SPI and QSPI are trademarks of Motorola, Inc.

________________________________________________________________ Maxim Integrated Products

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at

1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

12 3 4 5 6 7...36

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与MAX1403_02相关器件

型号	品牌	获取价格	描述	数据表
MAX1403CAI	MAXIM	获取价格	+3V, 18-Bit, Low-Power, Multichannel, Oversampling Sigma-Delta ADC
MAX1403CAI+	MAXIM	获取价格	ADC, Delta-Sigma, 18-Bit, 1 Func, 5 Channel, Serial Access, PDSO28, 5.30 MM, ROHS COMPLIAN
MAX1403CAI+T	MAXIM	获取价格	暂无描述
MAX1403CAI-T	MAXIM	获取价格	ADC, Delta-Sigma, 18-Bit, 1 Func, 5 Channel, Serial Access, PDSO28, 5.30 MM, MO-150, SSOP-
MAX1403EAI	MAXIM	获取价格	+3V, 18-Bit, Low-Power, Multichannel, Oversampling Sigma-Delta ADC
MAX1403EAI+T	MAXIM	获取价格	ADC, Delta-Sigma, 18-Bit, 1 Func, 5 Channel, Serial Access, PDSO28, 5.30 MM, ROHS COMPLIAN
MAX1403EAI-T	MAXIM	获取价格	ADC, Delta-Sigma, 18-Bit, 1 Func, 5 Channel, Serial Access, PDSO28, 5.30 MM, MO-150, SSOP-
MAX1403EV	MAXIM	获取价格	Evaluation System for the MAX1401/MAX1403
MAX1403EVKIT	MAXIM	获取价格	Easy to Configure
MAX1403EVL11	MAXIM	获取价格	Easy to Configure

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