Datasheet > LTC2379CMS-18

LTC2379CMS-18

更新时间： 2024-11-11 07:20:35

品牌	Logo	应用领域
Linear Systems		/
页数	文件大小	规格书
26页	492K
描述
LTC2379-1818-Bit, 1.6Msps, Low Power SAR ADC with 101.2dB SNR

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LTC2379CMS-18 数据手册

LTC2379-18

18-Bit, 1.6Msps, Low Power

SAR ADC with 101.2dB SNR

FEATURES

DESCRIPTION

The LTC^®2379-18 is a low noise, low power, high speed

18-bit successive approximation register (SAR) ADC.

Operating from a 2.5V supply, the LTC2379-18 has a

1.6Msps Throughput Rate

2ꢀSꢁ INꢀ ꢂMaꢃx

Guaranteed 18-ꢁit No Missing Codes

ꢀow Power: 18mW at 1.6Msps, 18μW at 1.6ksps

REF

fully differential input range with V ranging from

REF

101.2dꢁ SNR ꢂtypx at f = 2kHz

2.5V to 5.1V. The LTC2379-18 consumes only 18mW and

achieves 2LSꢀꢁILmaximum,nomissingcodesat18bits

with 101.2dꢀ SIR.

–120dꢁ THD ꢂtypx at f = 2kHz

Digital Gain Compression ꢂDGCx

Guaranteed Operation to 125°C

The LTC2379-18 has a high speed SPꢁ-compatible serial

interface that supports 1.8V, 2.5V, 3.3V and 5V logic while

also featuring a daisy-chain mode. The fast 1.6Msps

throughput with no cycle latency makes the LTC2379-18

ideally suited for a wide variety of high speed applications.

Aninternaloscillatorsetstheconversiontime,easingexter-

nal timing considerations. The LTC2379-18 automatically

powers down between conversions, leading to reduced

power dissipation that scales with the sampling rate.

2.5V Supply

Fully Differential ꢁnput Range V

REF

ꢁnput Range from 2.5V to 5.1V

REF

Io Pipeline Delay, Io Cycle Latency

1.8V to 5V ꢁ/O Voltages

SPꢁ-Compatible Serial ꢁ/O with Daisy-Chain Mode

ꢁnternal Conversion Clock

16-Lead MSOP and 4mm × 3mm DFI Packages

The LTC2379-18 features a unique digital gain compres-

sion(DGC)function,whicheliminatesthedriveramplifier’s

negative supply while preserving the full resolution of the

ADC. When enabled, the ADC performs a digital scaling

APPLICATIONS

Medical ꢁmaging

High Speed Data Acquisition

Portable or Compact ꢁnstrumentation

ꢁndustrial Process Control

Low Power ꢀattery-Operated ꢁnstrumentation

ATE

function that maps zero-scale code from 0V to 0.1 • V

REF

and full-scale code from V

to 0.9 • V . For a typical

REF

reference voltage of 5V, the full-scale input range is now

0.5V to 4.5V, which provides adequate headroom for

powering the driving amplifier from a single 5.5V supply.

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

SoftSpan is a trademark of Linear Technology Corporation. All other trademarks are the

property of their respective owners. Protected by U.S. Patents including 7705765.

TYPICAL APPLICATION

32k Point FFT f_S= 1.6Msps, f_IN= 2kHz

2.5V 1.8V TO 5V

10μF

SIR = 101.2dꢀ

–20

–40

THD = –120dꢀ

SꢁIAD = 101.1dꢀ

SFDR = 121dꢀ

0.1μF

–60

CHAꢁI

RDL/SDꢁ

SDO

SCK

ꢀUSY

CIV

3300pF

REF

20Ω

–

–80

ꢁI

–

–100

–120

–140

–160

–180

LTC2379-18

REF

ꢁI

SAMPLE CLOCK

REF/DGC

REF

GID

REF

237918 TA01

2.5V TO 5.1V

47μF

(X5R, 0805 SꢁZE)

100 200 300 400 500 600 700 800

FREQUEICY (kHz)

237918 TA02

237918fa

12 3 4 5 6 7...26

中文翻译

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与LTC2379CMS-18相关器件

型号	品牌	获取价格	描述	数据表
LTC2379CMS-18#PBF	Linear	获取价格	LTC2379-18 - 18-Bit, 1.6Msps, Low Power SAR ADC with 101dB SNR; Package: MSOP; Pins: 16; T
LTC2379CMS-18#TRPBF	Linear	获取价格	LTC2379-18 - 18-Bit, 1.6Msps, Low Power SAR ADC with 101dB SNR; Package: MSOP; Pins: 16; T
LTC2379CMS-18PBF	Linear	获取价格	18-Bit, 1.6Msps, Low Power SAR ADC with 101.2dB SNR
LTC2379CMS-18TRPBF	Linear	获取价格	18-Bit, 1.6Msps, Low Power SAR ADC with 101.2dB SNR
LTC2379HMS-18	Linear Systems	获取价格	LTC2379-1818-Bit, 1.6Msps, Low Power SAR ADC with 101.2dB SNR
LTC2379HMS-18#PBF	Linear	获取价格	LTC2379-18 - 18-Bit, 1.6Msps, Low Power SAR ADC with 101dB SNR; Package: MSOP; Pins: 16; T
LTC2379HMS-18#PBF	ADI	获取价格	18-Bit, 1.6Msps, Low Power SAR ADC with 101.2dB SNR
LTC2379HMS-18#TRPBF	Linear	获取价格	LTC2379-18 - 18-Bit, 1.6Msps, Low Power SAR ADC with 101dB SNR; Package: MSOP; Pins: 16; T
LTC2379HMS-18PBF	Linear	获取价格	18-Bit, 1.6Msps, Low Power SAR ADC with 101.2dB SNR
LTC2379HMS-18TRPBF	Linear	获取价格	18-Bit, 1.6Msps, Low Power SAR ADC with 101.2dB SNR

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