Datasheet > LTC2249

LTC2249

更新时间： 2023-12-20 18:45:21

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
24页	552K
描述
14 位、80Msps 低功率 3V ADC

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中文翻译

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数据手册

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LTC2249 数据手册

LTC2249

14-Bit, 80Msps

Low Power 3V ADC

FEATURES

DESCRIPTIO

The LTC^®2249 is a 14-bit 80Msps, low power 3V A/D

converter designed for digitizing high frequency, wide

dynamic range signals. The LTC2249 is perfect for de-

manding imaging and communications applications with

AC performance that includes 73dB SNR and 90dB SFDR

for signals well beyond the Nyquist frequency.

■

Sample Rate: 80Msps

■

Single 3V Supply (2.7V to 3.4V)

■

Low Power: 222mW

■

73dB SNR at 70MHz Input

■

90dB SFDR at 70MHz Input

■

No Missing Codes

■

Flexible Input: 1V_P-Pto 2V_P-PRange

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

no missing codes over temperature. The transition noise

■

575MHz Full Power Bandwidth S/H

■

Clock Duty Cycle Stabilizer

is a low 1.2LSB_RMS

■

Shutdown and Nap Modes

■

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

output supply allows the outputs to drive 0.5V to 3.6V

logic.

Pin Compatible Family

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.

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32-Pin (5mm × 5mm) QFN Package

APPLICATIO S

■

Wireless and Wired Broadband Communication

■

Imaging Systems

■

Ultrasound

Spectral Analysis

Portable Instrumentation

■

TYPICAL APPLICATIO

SNR vs Input Frequency,

–1dB, 2V Range

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

INPUT FREQUENCY (MHz)

2229 TA01

2249 G09

CLK

2249fa

12 3 4 5 6 7...24

中文翻译

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