Datasheet > LTC2378IMS-20PBF

LTC2378IMS-20PBF

更新时间： 2024-11-11 12:26:11

品牌	Logo	应用领域
凌特 - Linear		/
页数	文件大小	规格书
28页	1062K
描述
20-Bit, 1Msps, Low Power SAR ADC with 0.5ppm INL

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中文翻译

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LTC2378IMS-20PBF 数据手册

LTC2378-20

20-Bit, 1Msps, Low Power

SAR ADC with 0.5ppm INL

FeaTures

DescripTion

The LTC^®2378-20 is a low noise, low power, high speed

20-bit successive approximation register (SAR) ADC.

Operating from a 2.5V supply, the LTC2378-20 has a

1Msps Throughput Rate

±±0.ppꢀ INꢁ ꢂTyp)

Guaranteed 2±-Bit No Missing Codes

ꢁow Power: 21ꢀW at 1Msps, 21µW at 1ksps

1±4dB SNR ꢂTyp) at f = 2kHz

–12.dB THD ꢂTyp) at f = 2kHz

fully differential input range with V ranging from

REF REF

2.5V to 5.1V. The LTC2378-20 consumes only 21mW and

achieves 2ppm INL maximum, no missing codes at 20

bits with 104dB SNR.

Digital Gain Coꢀpression ꢂDGC)

Guaranteed Operation to 85°C

2.5V Supply

The LTC2378-20 has a high speed SPI-compatible serial

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

while also featuring a daisy-chain mode. The fast 1Msps

throughput with no cycle latency makes the LTC2378-20

ideally suited for a wide variety of high speed applications.

Aninternaloscillatorsetstheconversiontime,easingexter-

nal timing considerations. The LTC2378-20 automatically

powers down between conversions, leading to reduced

power dissipation that scales with the sampling rate.

Fully Differential Input Range V

REF

Input Range from 2.5V to 5.1V

REF

No Pipeline Delay, No Cycle Latency

1.8V to 5V I/O Voltages

SPI-Compatible Serial I/O with Daisy-Chain Mode

Internal Conversion Clock

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

The LTC2378-20 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 Imaging

High Speed Data Acquisition

Portable or Compact Instrumentation

Industrial Process Control

Low Power Battery-Operated Instrumentation

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. Patents Pending. Protected by U.S. Patents, including

7705765, 7961132, 8319673.

Typical applicaTion

Integral Nonlinearity vs Output Code

2.0

2.5V 1.8V TO 5V

10µF

1.5

0.1µF

1.0

0.5

CHAIN

RDL/SDI

SDO

SCK

BUSY

CNV

REF/DGC

6800pF

3300pF

6800pF

REF

10Ω

–

LTC2378-20

REF

–0.5

–1.0

–1.5

–2.0

SAMPLE CLOCK

REF

GND

REF

237820 TA01

2.5V TO 5.1V

47µF

(X7R, 1210 SIZE)

262144

524288

786432 1048576

OUTPUT CODE

237820 TA02

237820f

For more information www.linear.com/LTC2378-20

12 3 4 5 6 7...28

中文翻译

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与LTC2378IMS-20PBF相关器件

型号	品牌	获取价格	描述	数据表
LTC2379-18	Linear Systems	获取价格	LTC2379-1818-Bit, 1.6Msps, Low Power SAR ADC with 101.2dB SNR
LTC2379-18	Linear	获取价格	18-Bit, 1.6Msps, Low Power SAR ADC with 101.2dB SNR
LTC2379-18	ADI	获取价格	具 101.2dB SNR 的 18 位、1.6Msps、低功率 SAR ADC
LTC2379-18_11	Linear	获取价格	18-Bit, 1.6Msps, Low Power SAR ADC with 101.2dB SNR
LTC2379CDE-18	Linear Systems	获取价格	LTC2379-1818-Bit, 1.6Msps, Low Power SAR ADC with 101.2dB SNR
LTC2379CDE-18#PBF	Linear	获取价格	LTC2379-18 - 18-Bit, 1.6Msps, Low Power SAR ADC with 101dB SNR; Package: DFN; Pins: 16; Te
LTC2379CDE-18#TRPBF	Linear	获取价格	LTC2379-18 - 18-Bit, 1.6Msps, Low Power SAR ADC with 101dB SNR; Package: DFN; Pins: 16; Te
LTC2379CDE-18PBF	Linear	获取价格	18-Bit, 1.6Msps, Low Power SAR ADC with 101.2dB SNR
LTC2379CDE-18TRPBF	Linear	获取价格	18-Bit, 1.6Msps, Low Power SAR ADC with 101.2dB SNR
LTC2379CMS-18	Linear Systems	获取价格	LTC2379-1818-Bit, 1.6Msps, Low Power SAR ADC with 101.2dB SNR

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