Datasheet > LTC2450

LTC2450

更新时间： 2023-12-20 18:44:10

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
20页	202K
描述
易于使用的超纤巧型 16 位 ΔΣ ADC

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LTC2450 数据手册

LTC2450

Easy-to-Use, Ultra-Tiny

16-Bit ΔΣ ADC

FEATURES

DESCRIPTION

The LTC^®2450 is an ultra-tiny 16-bit analog-to-digital

converter. The LTC2450 uses a single 2.7V to 5.5V supply,

accepts a single-ended analog input voltage, and commu-

nicates through an SPI interface. It includes an integrated

oscillator that does not require any external components.

It uses a delta-sigma modulator as a converter core and

providessingle-cyclesettlingtimeformultiplexedapplica-

tions. The converter is available in a 6-pin, 2mm × 2mm

DFN package. The internal oscillator does not require any

external components. The LTC2450 includes a proprietary

input sampling scheme that reduces the average input

sampling current several orders of magnitude.

GND to V Single-Ended Input Range

0.02LSB RMS Noise

2LSB INL, No Missing Codes

2LSB Offset Error

4LSB Full-Scale Error

Single Conversion Settling Time for Multiplexed

Applications

Single Cycle Operation with Auto Shutdown

350μA Supply Current

50nA Sleep Current

30 Conversions Per Second

Internal Oscillator—No External Components

Required

The LTC2450 is capable of up to 30 conversions per sec-

ond and, due to the very large oversampling ratio, has

extremelyrelaxedantialiasingrequirements.TheLTC2450

includes continuous internal offset and full-scale calibra-

tionalgorithmswhicharetransparenttotheuser,ensuring

accuracy over time and over the operating temperature

range. The converter uses its power supply voltage as the

reference voltage and the single-ended, rail-to-rail input

Single Supply, 2.7V to 5.5V Operation

SPI Interface

Ultra-Tiny 2mm × 2mm DFN Package

APPLICATIONS

System Monitoring

Environmental Monitoring

voltage range extends from GND to V .

Direct Temperature Measurements

Instrumentation

Following a conversion, the LTC2450 can automatically

enter a sleep mode and reduce its power to less than

200nA. If the user samples the ADC once a second, the

LTC2450 consumes an average of less than 50μW from

a 2.7V supply.

Industrial Process Control

Data Acquisition

Embedded ADC Upgrades

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

is a trademark 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

Integral Nonlinearity, V_CC= 3V

3.0

= V

= 3V

REF

2.5

2.0

1.5

10μF

0.1μF

1.0

0.5

T = –45°C, 25°C, 90°C

CLOSE TO

CHIP

SCK

SDO

–0.5

–1.0

–1.5

–2.0

–2.5

–3.0

3-WIRE SPI

INTERFACE

LTC2450

GND

SENSE

0.1μF

2450 TA01

1.0

1.5

2.0

2.5

3.0

0.5

INPUT VOLTAGE (V)

2450 G02

2450fb

12 3 4 5 6 7...20

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与LTC2450相关器件

型号	品牌	描述	获取价格	数据表
LTC2450-1	Linear	Easy-to-Use, Ultra-Tiny 16-Bit ADC	获取价格
LTC2450-1	ADI	易于使用的超纤巧型 16 位 ΔΣ ADC	获取价格
LTC2450CDC#PBF	Linear	LTC2450 - Easy-to-Use, Ultra-Tiny 16-Bit Delta Sigma ADC; Package: DFN; Pins: 6; Temperatu	获取价格
LTC2450CDC#TRMPBF	Linear	LTC2450 - Easy-to-Use, Ultra-Tiny 16-Bit Delta Sigma ADC; Package: DFN; Pins: 6; Temperatu	获取价格
LTC2450CDC-1#PBF	Linear	暂无描述	获取价格
LTC2450CDC-1#TRMPBF	Linear	LTC2450-1 - Easy-to-Use, Ultra-Tiny 16-Bit Delta Sigma ADC; Package: DFN; Pins: 6; Tempera	获取价格

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