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LTC2221 - LTC2221是12-Bit, 135Msps ADC

LTC2221是LINEAR凌力尔特公司的一款高速 ADC产品，LTC2221是LTC2221是12-Bit, 135Msps ADC，本站介绍了LTC2221的封装应用图解、特点和优点、功能等，并给出了与LTC2221相关的LINEAR元器件型号供参考。

LTC2221 - LTC2221是12-Bit, 135Msps ADC - 高速 ADC - 数据转换 - 凌力尔特

LTC2221 - 12-Bit, 135Msps ADC

LTC2221 - 12-Bit, 135Msps ADC - Linear Technology（凌力尔特）

功能描述

The LTC2220 and LTC2221 are 170Msps/135Msps, sampling 12-bit A/D converters designed for digitizing high frequency, wide dynamic range signals. The LTC2220/LTC2221 are perfect for demanding communications applications with AC performance that includes 67.5dB SNR and 80dB spurious free dynamic range for signals up to 170MHz. Ultralow jitter of 0.15psRMS allows undersampling of IF frequencies with excellent noise performance.

DC specs include ±0.4LSB INL (typ), ±0.3LSB DNL (typ) and no missing codes over temperature. The transition noise is a low 0.5LSBRMS.

The digital outputs can be either differential LVDS, or single-ended CMOS. There are three format options for the CMOS outputs: a single bus running at the full data rate or two demultiplexed buses running at half data rate with either interleaved or simultaneous update. A separate output power supply allows the CMOS output swing to range from 0.5V to 3.6V.

The ENC+ and ENC inputs may be driven differentially or single ended with a sine wave, PECL, LVDS, TTL, or CMOS inputs. An optional clock duty cycle stabilizer allows high performance at full speed for a wide range of clock duty cycles.

特点

Sample Rate: 170Msps/135Msps

67.5dB SNR up to 140MHz Input

80dB SFDR up to 170MHz Input

775MHz Full Power Bandwidth S/H

Single 3.3V Supply

Low Power Dissipation: 890mW/660mW

LVDS, CMOS, or Demultiplexed CMOS Outputs

Selectable Input Ranges: ±0.5V or ±1V

No Missing Codes

Optional Clock Duty Cycle Stabilizer

Shutdown and Nap Modes

Data Ready Output Clock

Pin Compatible Family185Msps: LTC2220-1 (12-Bit)170Msps: LTC2220 (12-Bit), LTC2230 (10-Bit)135Msps: LTC2221 (12-Bit), LTC2231 (10-Bit)

64-Pin 9mm × 9mm QFN Package

应用

Wireless and Wired Broadband Communication

Cable Head-End Systems

Power Amplifier Linearization

Communications Test Equipment

以下列出了不同封装及包装形式的具体型号,并标出了直接在linear官网上订货的价格（美元）

器件型号	封装	温度	价格 (以 1 ~ 99 片为批量)	价格 (以 1000 片为批量)
LTC2221CUP	9x9 QFN-64	C	$46.92	$33.92
LTC2221CUP#PBF	9x9 QFN-64	C	$46.92	$33.92
LTC2221CUP#TR	9x9 QFN-64	C		$34.02
LTC2221CUP#TRPBF	9x9 QFN-64	C		$34.02
LTC2221IUP	9x9 QFN-64	I	$58.65	$42.40
LTC2221IUP#PBF	9x9 QFN-64	I	$58.65	$42.40
LTC2221IUP#TR	9x9 QFN-64	I		$42.50
LTC2221IUP#TRPBF	9x9 QFN-64	I		$42.50

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