Datasheet > LTC2472CMSTRPBF

LTC2472CMSTRPBF

更新时间： 2024-11-12 05:43:47

品牌	Logo	应用领域
凌特 - Linear		监控
页数	文件大小	规格书
20页	307K
描述
System Monitoring

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中文翻译

获取价格

数据手册

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LTC2472CMSTRPBF 数据手册

LTC2470/LTC2472

Selectable 250sps/1ksps,

16-Bit ΔΣ ADCs with 10ppm/°C

Max Precision Reference

DESCRIPTION

FEATURES

TheLTC^®2470/LTC2472aresmall,16-bitanalog-to-digital

16-Bit Resolution, No Missing Codes

Internal, High Accuracy Reference—10ppm/°C (Max)

Single-Ended (LTC2470) or Differential (LTC2472)

Selectable 250sps/1ksps Output Rate

1mV Offset Error

converters with an integrated precision reference and

a selectable 250sps or 1ksps output rate. They use a

single 2.7V to 5.5V supply and communicate through a

SPI Interface. The LTC2470 is single-ended with a 0V to

V_REFinput range and the LTC2472 is differential with a

V_REFinput range. Both ADC’s include a 1.25V integrated

referencewith2ppm/°Cdriftperformanceand0.1%initial

accuracy. The converters are available in a 12-pin DFN

3mm × 3mm package or an MSOP-12 package. They

include an integrated oscillator and perform conver-

sions with no latency for multiplexed applications. The

LTC2470/LTC2472 include a proprietary input sampling

scheme that reduces the average input current several

orders of magnitude when compared to conventional

delta sigma converters.

0.01% Gain Error

Single Conversion Settling Time for Multiplexed

Applications

Single-Cycle Operation with Auto Shutdown

3.5mA (Typ) Supply Current

2μA (Max) Sleep Current

Internal Oscillator—No External Components

Required

SPI Interface

Small 12-Lead, 3mm × 3mm DFN and MSOP

Packages

Following a single conversion, the LTC2470/LTC2472

automatically power down the converter and can also be

conﬁgured to power down the reference. When both the

ADC and reference are powered down, the supply current

is reduced to 200nA.

APPLICATIONS

System Monitoring

Environmental Monitoring

Direct Temperature Measurements

Instrumentation

The LTC2470/LTC2472 include a user selectable 250sps

or 1ksps output rate and due to a large oversampling

ratio (8,192 at 250sps and 2,048 at 1ksps) have relaxed

anti-aliasing requirements.

Industrial Process Control

Data Acquisition

Embedded ADC Upgrades

L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear

Technology Corporation. All other trademarks are the property of their respective owners.

Protected by U.S. Patents, including 6208279, 6411242, 7088280, 7164378.

TYPICAL APPLICATION

V_REFvs Temperature

1.2520

2.7V TO 5.5V

1.2515

1.2510

1.2505

1.2500

1.2495

1.2490

1.2485

1.2480

0.1μF

COMP

0.1μF

10μF

0.1μF

10k

REFOUT

–

SCK

10k

SPI

INTERFACE

LTC2472

SDO

0.1μF

–

REF

GND

24702 TA01a

–50 –30 –10 10

TEMPERATURE (°C)

24702 TA01b

24702f

12 3 4 5 6 7...20

中文翻译

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LTC2473_15	Linear	获取价格	Selectable 208sps/833sps, 16-Bit I2C ADCs with 10ppm/C Max Precision Reference
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LTC2473CDD#PBF	Linear	获取价格	LTC2473 - Selectable 208sps/833sps, 16-Bit I<sup>2</sup>C ΔΣ
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