Datasheet > LTC1594_1

LTC1594_1

更新时间： 2024-11-25 05:43:39

品牌	Logo	应用领域
凌特 - Linear		转换器
页数	文件大小	规格书
24页	235K
描述
4- and 8-Channel, Micropower Sampling 12-Bit Serial I/O A/D Converters

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中文翻译

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数据手册

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LTC1594_1 数据手册

LTC1594/LTC1598

4- and 8-Channel,

Micropower Sampling

12-Bit Serial I/O A/D Converters

FEATURES

DESCRIPTIO

TheLTC^®1594/LTC1598aremicropower,12-bitsampling

A/Dconvertersthatfeature4-and8-channelmultiplexers,

respectively. They typically draw only 320μA of supply

currentwhenconvertingandautomaticallypowerdownto

a typical supply current of 1nA between conversions. The

LTC1594 is available in a 16-pin SO package and the

LTC1598 is packaged in a 24-pin SSOP. Both operate on

a 5V supply. The 12-bit, switched-capacitor, successive

approximation ADCs include a sample-and-hold.

■

12-Bit Resolution

■

Auto Shutdown to 1nA

■

Low Supply Current: 320μA Typ

■

Guaranteed ±3/4LSB Max DNL

■

Single Supply 5V Operation

(3V Versions Available: LTC1594L/LTC1598L)

■

Multiplexer: 4-Channel MUX (LTC1594)

8-Channel MUX (LTC1598)

■

Separate MUX Output and ADC Input Pins

■

MUX and ADC May Be Controlled Separately

On-chip serial ports allow efficient data transfer to a wide

rangeofmicroprocessorsandmicrocontrollersoverthree

or four wires. This, coupled with micropower consump-

tion, makes remote location possible and facilitates trans-

mitting data through isolation barriers.

■

Sampling Rate: 16.8ksps

I/O Compatible with QSPI, SPI and MICROWIRE^TM, etc.

Small Package: 16-Pin Narrow SO (LTC1594)

24-Pin SSOP (LTC1598)

■

APPLICATIO S

The circuit can be used in ratiometric applications or with

an external reference. The high impedance analog inputs

and the ability to operate with reduced spans (to 1.5V full

scale) allow direct connection to sensors and transducers

in many applications, eliminating the need for gain stages.

■

Pen Screen Digitizing

■

Battery-Operated Systems

■

Remote Data Acquisition

■

Isolated Data Acquisition

, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.

All other trademarks are the property of their respective owners.

■

Battery Monitoring

■

Temperature Measurement

TYPICAL APPLICATIO

24μW, 4-Channel, 12-Bit ADC Samples at 200Hz and Runs Off a 5V Supply

OPTIONAL

ADC FILTER

Supply Current vs Sample Rate

1000

100

1μF

= 25°C

= 5V

REF

MUXOUT

ADCIN

15, 19

1μF

= 5V

= 320kHz

REF

CLK

20 CH0

21 CH1

22 CH2

23 CH3

24 CH4

SERIAL DATA LINK

MICROWIRE AND

SPI COMPATABLE

CSADC

CSMUX

CLK

ANALOG

INPUTS

0V TO 5V

RANGE

5, 14

12-BIT

SAMPLING

ADC

8-CHANNEL

MUX

MPU

CH5

CH6

CH7

OUT

–

COM

GND

4, 9

0.1

100

1594/98 TA01

SAMPLE FREQUENCY (kHz)

1594/98 TA02

15948fb

12 3 4 5 6 7...24

中文翻译

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与LTC1594_1相关器件

型号	品牌	获取价格	描述	数据表
LTC1594_15	Linear	获取价格	4- and 8-Channel, Micropower Sampling 12-Bit Serial I/O A/D Converters
LTC1594CS	Linear	获取价格	4- and 8-Channel, Micropower Sampling 12-Bit Serial I/O A/D Converters
LTC1594CS#PBF	Linear	获取价格	暂无描述
LTC1594CS#TR	Linear	获取价格	LTC1594 - 4-Channel, Micropower Sampling 12-Bit Serial I/O A/D Converter; Package: SO; Pin
LTC1594CS#TRPBF	Linear	获取价格	LTC1594 - 4-Channel, Micropower Sampling 12-Bit Serial I/O A/D Converter; Package: SO; Pin
LTC1594IS	Linear	获取价格	4- and 8-Channel, Micropower Sampling 12-Bit Serial I/O A/D Converters
LTC1594IS#TR	Linear	获取价格	LTC1594 - 4-Channel, Micropower Sampling 12-Bit Serial I/O A/D Converter; Package: SO; Pin
LTC1594IS#TRPBF	Linear	获取价格	LTC1594 - 4-Channel, Micropower Sampling 12-Bit Serial I/O A/D Converter; Package: SO; Pin
LTC1594L	Linear	获取价格	4- and 8-Channel, 3V Micropower Sampling 12-Bit Serial I/O A/D Converters
LTC1594L	ADI	获取价格	4 通道、3V 微功率采样 12 位串行 I/O A/D 转换器

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