LTC2229

更新时间： 2024-09-23 22:55:51

品牌	Logo	应用领域
凌特 - Linear		/
页数	文件大小	规格书
24页	608K
描述
14-Bit, 125/105Msps Low Power 3V ADCs

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中文翻译

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数据手册

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LTC2229 数据手册

LTC2255/LTC2254

14-Bit, 125/105Msps

Low Power 3V ADCs

FEATURES

DESCRIPTIO

The LTC^®2255/LTC2254 are 14-bit 125Msps/105Msps,

low power 3V A/D converters designed for digitizing high

frequency, wide dynamic range signals. The LTC2255/

LTC2254 are perfect for demanding imaging and commu-

nications applications with AC performance that includes

72.3dB SNR and 85dB SFDR for signals at the Nyquist

frequency.

■

Sample Rate: 125Msps/105Msps

■

Single 3V Supply (2.85V to 3.4V)

■

Low Power: 395mW/320mW

■

72.4dB SNR

88dB SFDR

No Missing Codes

■

Flexible Input: 1V_P-Pto 2V_P-PRange

■

640MHz Full Power Bandwidth S/H

DCspecsinclude±1LSBINL(typ), ±0.5LSBDNL(typ)and

■

Clock Duty Cycle Stabilizer

no missing codes over temperature. The transition noise

■

Shutdown and Nap Modes

is a low 1.3 LSB_RMS

■

Pin Compatible Family

A single 3V supply allows low power operation. A separate

output supply allows the outputs to drive 0.5V to 3.3V

logic.

125Msps: LTC2253 (12-Bit), LTC2255 (14-Bit)

105Msps: LTC2252 (12-Bit), LTC2254 (14-Bit)

80Msps: LTC2229 (12-Bit), LTC2249 (14-Bit)

65Msps: LTC2228 (12-Bit), LTC2248 (14-Bit)

40Msps: LTC2227 (12-Bit), LTC2247 (14-Bit)

25Msps: LTC2226 (12-Bit), LTC2246 (14-Bit)

10Msps: LTC2225 (12-Bit), LTC2245 (14-Bit)

Asingle-endedCLKinputcontrolsconverteroperation.An

optional clock duty cycle stabilizer allows high perfor-

mance at full speed for a wide range of clock duty cycles.

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

All other trademarks are the property of their respective owners.

■

32-Pin (5mm × 5mm) QFN Package

APPLICATIO S

■

Wireless and Wired Broadband Communication

■

Imaging Systems

■

Ultrasound

Spectral Analysis

Portable Instrumentation

■

TYPICAL APPLICATIO

LTC2255: SNR vs Input Frequency,

–1dB, 2V Range, 125Msps

REFH

FLEXIBLE

REFERENCE

REFL

D13

14-BIT

PIPELINED

ADC CORE

•

CORRECTION

LOGIC

ANALOG

INPUT

OUTPUT

DRIVERS

INPUT

S/H

–

OGND

CLOCK/DUTY

CYCLE

CONTROL

100 150 200 250 300 350

33554 G09

INPUT FREQUENCY (MHz)

22554 TA01a

CLK

22554f

12 3 4 5 6 7...24

中文翻译

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