LTC2251 10-Bit, 125Msps Low Noise 3V ADCs

The LTC®2251/LTC2250 are 10-bit 125Msps/105Msps, low noise 3V A/D converters designed for digitizing high frequency, wide dynamic range signals. The LTC2251/LTC2251 are perfect for demanding imaging and communications applications with AC performance that includes 61.6dB SNR and 85dB SFDR for signals at the Nyquist frequency.

DC specs include ±0.1LSB INL (typ), ±0.05LSB DNL (typ) and ±0.6LSB INL, ±0.6LSB DNL over temperature. The transition noise is a low 0.08LSBRMS.

A single 3V supply allows low power operation. A separate output supply allows the outputs to drive 0.5V to 3.3V logic.

A single-ended CLK input controls converter operation. 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: 125Msps/105Msps Single 3V Supply (2.85V to 3.4V) Low Power: 395mW/320mW 61.6dB SNR 85dB SFDR No Missing Codes Flexible Input: 1VP-P to 2VP-P Range 640MHz Full Power Bandwidth S/H Clock Duty Cycle Stabilizer Shutdown and Nap Modes Pin Compatible Family: 125Msps: LTC2251 (10-Bit), LTC2253 (12-Bit) 105Msps: LTC2250 (10-Bit), LTC2252 (12-Bit) 80Msps: LTC2239 (10-Bit), LTC2229 (12-Bit) 65Msps: LTC2238 (10-Bit), LTC2228 (12-Bit) 40Msps: LTC2237 (10-Bit), LTC2227 (12-Bit) 25Msps: LTC2236 (10-Bit), LTC2226 (12-Bit) 32-Pin (5mm × 5mm) QFN Package 封装	应用 Wireless and Wired Broadband Communication Imaging Systems Ultrasound Spectral Analysis Portable Instrumentation 典型应用图参数

产品特点 Features

Sample Rate: 125Msps/105Msps
Single 3V Supply (2.85V to 3.4V)
Low Power: 395mW/320mW
61.6dB SNR
85dB SFDR
No Missing Codes
Flexible Input: 1VP-P to 2VP-P Range
640MHz Full Power Bandwidth S/H
Clock Duty Cycle Stabilizer
Shutdown and Nap Modes
Pin Compatible Family:
125Msps: LTC2251 (10-Bit), LTC2253 (12-Bit)
105Msps: LTC2250 (10-Bit), LTC2252 (12-Bit)
80Msps: LTC2239 (10-Bit), LTC2229 (12-Bit)
65Msps: LTC2238 (10-Bit), LTC2228 (12-Bit)
40Msps: LTC2237 (10-Bit), LTC2227 (12-Bit)
25Msps: LTC2236 (10-Bit), LTC2226 (12-Bit)
32-Pin (5mm × 5mm) QFN Package

封装

应用

Wireless and Wired Broadband Communication
Imaging Systems
Ultrasound
Spectral Analysis
Portable Instrumentation

典型应用图

参数

LTC2251 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) *
LTC2251CUH	QFN	32	C	$34.58	$25.00
LTC2251CUH#PBF	QFN	32	C	$34.58	$25.00
LTC2251CUH#TR	QFN	32	C		$25.10
LTC2251CUH#TRPBF	QFN	32	C		$25.10
LTC2251IUH	QFN	32	I	$41.50	$30.00
LTC2251IUH#PBF	QFN	32	I	$41.50	$30.00
LTC2251IUH#TR	QFN	32	I		$30.10
LTC2251IUH#TRPBF	QFN	32	I		$30.10

LTC2251 演示电路板

器件型号	描述
DC782A-W	LTC2251IUH \| High Speed ADC, VDD = +3.0V, 125Msps, 10-Bit 10MHz < Ain < 170MHz, req DC718

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
DC718C	USB Data Acquisition Controller, for QuikEval -II Evaluation Kits

LTC2251 数据手册及相关资料下载

数据手册(英文) : LTC2251/LTC2250 - 10-Bit, 125/105Msps Low Noise 3V 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 : Digital Predistortion Solutions..PDF
产品选型卡 : 14-/12-Bit Quad & Dual, Serial LVDS ADCs .PDF
产品新闻发布 (英文) : 125 Msps 14-bit Wideband ADC has Low Power Consumption.PDF
产品新闻发布 (中文) : 低功耗的 125Msps、14 位宽带 ADC (低功率 ADC 提高基站功率效率并延长便携式电子产品的电池寿命).PDF
软件和仿真: LTC2249 IBIS model.IBS