Datasheet > LTC2447_15

LTC2447_15

更新时间： 2024-11-12 01:16:59

品牌	Logo	应用领域
凌特 - Linear		/
页数	文件大小	规格书
28页	317K
描述
24-Bit High Speed 8-Channel ADCs with Selectable Multiple Reference Inputs

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

LTC2447_15 数据手册

LTC2446/LTC2447

24-Bit High Speed

8-Channel ∆Σ ADCs with

Selectable Multiple Reference Inputs

FEATURES

DESCRIPTIO

The LTC^®2446/LTC2447 4-terminal switching enables

■

Five Selectable Differential Reference Inputs

Four Differential/Eight Single-Ended Inputs

4-Way MUX for Multiple Ratiometric

Measurements

■

multiplexed ratiometric measurements. Four sets of se-

lectable differential inputs coupled with four sets of differ-

ential reference inputs allow multiple RTDs, bridges and

other sensors to be digitized by a single converter. A fifth

differential reference input can be selected for any input

channel not requiring ratiometric measurements (ther-

mocouples, voltages, current sense, etc.). The flexible

input multiplexer allows single-ended or differential in-

puts coupled with a slaved reference input or a universal

reference input.

■

Up to 8kHz Output Rate

Up to 4kHz Multiplexing Rate

Selectable Speed/Resolution:

2µV_RMSNoise at 1.76kHz Output Rate

200nV_RMSNoise at 13.8Hz Output Rate with

Simultaneous 50/60Hz Rejection

■

Guaranteed Modulator Stability and Lock-Up

Immunity for any Input and Reference Conditions

0.0005% INL, No Missing Codes

Autosleep Enables 20µA Operation at 6.9Hz

<5µV Offset (4.5V < V_CC< 5.5V, –40°C to 85°C)

Differential Input and Differential Reference with

GND to V_CCCommon Mode Range

No Latency Mode, Each Conversion is Accurate Even

After a New Channel is Selected

■

A proprietary delta-sigma architecture results in absolute

accuracy (offset, full-scale, linearity) of 15ppm, noise as

low as 200nV_RMSand speeds as high as 8kHz. Through a

simple 4-wire interface, ten speed/resolution combina-

tions can be selected. The first conversion following a

speed, resolution, channel change or reference change is

valid since there is no settling time between conversions,

enabling scan rates of up to 4kHz. Additionally, a 2x mode

can be selected for any speed-enabling output rates up to

8kHz with one cycle of latency.

■

Internal Oscillator—No External Components

LTC2447 Includes MUXOUT/ADCIN for External

Buffering or Gain

■

^{Tiny QFN 5mm x}U^{7mm Package}

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

Protected by U.S. Patents, including 6140950, 6169506, 6208279, 6411242, 6639526

APPLICATIO S

■

Flow

■

Weight Scales

■

Pressure

■

Direct Temperature Measurement

■

Gas Chromatography

TYPICAL APPLICATIO

LTC2446 Speed vs RMS Noise

100

Multiple Ratiometric Measurement System

= 5V

REF

–

= V = 0V

2x SPEED MODE

LTC2446

NO LATENCY MODE

REF

2.8µV AT 880Hz

280nV AT 6.9Hz

(50/60Hz REJECTION)

–

•

19-INPUT

4-OUTPUT

MUX

SDI

SDO

SCK

VARIABLE SPEED/

RESOLUTION 24-BIT

–

∆Σ ADC

–

REF

0.1

100

1000

10000

CONVERSION RATE (Hz)

24467 TA01

24467 TA02

24467fa

12 3 4 5 6 7...28

中文翻译

下载PDF

与LTC2447_15相关器件

型号	品牌	获取价格	描述	数据表
LTC2447CUHF	Linear	获取价格	24-Bit High Speed 8-Channel ΔΣ ADCs with Sele
LTC2447CUHF#PBF	Linear	获取价格	LTC2447 - 24-Bit High Speed 8-Channel Delta Sigma ADCs with Selectable Multiple Reference
LTC2447CUHF#TRPBF	Linear	获取价格	LTC2447 - 24-Bit High Speed 8-Channel Delta Sigma ADCs with Selectable Multiple Reference
LTC2447IUHF	Linear	获取价格	24-Bit High Speed 8-Channel ΔΣ ADCs with Sele
LTC2447IUHF#TR	Linear	获取价格	LTC2447 - 24-Bit High Speed 8-Channel Delta Sigma ADCs with Selectable Multiple Reference
LTC2448	Linear	获取价格	24-Bit High Speed 8-/16-Channel ADCs with Selectable Speed/Resolution
LTC2448	ADI	获取价格	具可选速度 / 分辨率的 24 位高速 8 / 16 通道 ΔΣ ADC
LTC2448_15	Linear	获取价格	24-Bit High Speed 8-/16-Channel ADCs with Selectable Speed/Resolution
LTC2448C	Linear	获取价格	24-Bit High Speed 8-/16-Channel ADCs with Selectable Speed/Resolution
LTC2448CUHF	Linear	获取价格	24-Bit High Speed 8-/16-Channel ADCs with Selectable Speed/Resolution

与LTC2447_15相关文章

国产厂商思特威CMOS图像传感器芯片单月出货超1亿颗，技术创新引领行业发展
2024-11-14

23
台积电5nm和3nm产能利用率达100%，半导体行业景气度持续攀升
2024-11-14

7
AMD宣布全球裁员约1000人，调整战略聚焦增长
2024-11-14

8
英伟达新AI芯片Rubin或提前半年亮相
2024-11-05

31

产品中心

服务支持

精选活动

关于我们

帮助中心

LTC2447_15

LTC2447_15 数据手册

与LTC2447_15相关器件

与LTC2447_15相关文章

您还可以找

产品中心

服务支持

精选活动

关于我们

帮助中心

LTC2447_15

LTC2447_15 数据手册

与LTC2447_15相关器件

与LTC2447_15相关文章

您还可以找

您在本页遇到什么问题？