LTC2221 12-Bit, 135Msps ADC _BDTIC代理LTC2221

LTC2221 12-Bit, 135Msps ADC

The LTC®2220 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

产品特点 Features 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 Family 185Msps: LTC2220-1 (12-Bit) 170Msps: LTC2220 (12-Bit), LTC2230 (10-Bit) 135Msps: LTC2221 (12-Bit), LTC2231 (10-Bit) 64-Pin 9mm × 9mm QFN Package 封装	应用 Wireless and Wired Broadband Communication Cable Head-End Systems Power Amplifier linearization Communications Test Equipment 典型应用图参数

产品特点 Features

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 Family
185Msps: LTC2220-1 (12-Bit)
170Msps: LTC2220 (12-Bit), LTC2230 (10-Bit)
135Msps: LTC2221 (12-Bit), LTC2231 (10-Bit)
64-Pin 9mm × 9mm QFN Package

封装

应用

Wireless and Wired Broadband Communication
Cable Head-End Systems
Power Amplifier linearization
Communications Test Equipment

典型应用图

参数

LTC2221 订购信息和价格参考Package Variations and Pricing

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

LTC2221 演示电路板

器件型号	描述
DC750A-B	LTC2221CUP \| High Speed ADC, VCC = +3.3V, 135Msps, 12-Bit 1MHz < AIN < 100MHz (Requires DC890 and LVDS_TRANSFORMER)
DC750A-F	LTC2221CUP \| High Speed ADC, VCC = +3.3V, 135Msps, 12-Bit AIN > 100MHz (Requires DC890 and LVDS_TRANSFORMER)

Companion Boards

器件型号	描述
DC1075A	Clock Divider board
DC1164A	High Speed ADC Signal Source
DC1216A-A	100MHz High Speed ADC Clock Source
DC1216A-B	122.88MHz High Speed ADC Clock Source
DC1216A-C	80MHz High Speed ADC Clock Source
DC890_LVDS_XFMR	LVDS Power Transformer, goes with DC890B/ LVDS output demoboards
DC890B	High Speed (up to 250Mbps, CMOS/LVDS) USB Data Collection Board

LTC2221 数据手册及相关资料下载

数据手册(英文) : LTC2221/LTC2220 - 12-Bit,170Msps/135Msps ADCs.PDF
设计要点 (英文) :DN1013 - Understanding the Effect of Clock Jitter on High Speed ADCs .PDF
可靠性数据 : R478 Reliability Data .PDF
产品选型卡 : Differential Amplifiers/High Speed ADC Drivers .PDF
产品选型卡 : Low Power, 16-Bit Dual/Single ADCs .PDF