LTC2248 14-Bit, 65Msps Low Power 3V ADC

The LTC®2248/LTC2247/LTC2246 are 14-bit 65Msps/40Msps/25Msps, low power 3V A/D converters designed for digitizing high frequency, wide dynamic range signals. The LTC2248/LTC2247/LTC2246 are perfect for demanding imaging and communications applications with AC performance that includes 74dB SNR and 80dB SFDR for signals well beyond the Nyquist frequency.

DC specs include ±1LSB INL (typ), ±0.5LSB DNL (typ) and no missing codes over temperature. The transition noise is a low 1LSBRMS.

A single 3V supply allows low power operation. A separate output supply allows the outputs to drive 0.5V to 3.6V 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: 65Msps/40Msps/25Msps Single 3V Supply (2.7V to 3.4V) Low Power: 205mW/120mW/75mW 74.3dB SNR 90dB SFDR No Missing Codes Flexible Input: 1VP-P to 2VP-P Range 575MHz Full Power Bandwidth S/H Clock Duty Cycle Stabilizer Shutdown and Nap Modes 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) 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: 65Msps/40Msps/25Msps
Single 3V Supply (2.7V to 3.4V)
Low Power: 205mW/120mW/75mW
74.3dB SNR
90dB SFDR
No Missing Codes
Flexible Input: 1VP-P to 2VP-P Range
575MHz Full Power Bandwidth S/H
Clock Duty Cycle Stabilizer
Shutdown and Nap Modes
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)
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

LTC2248 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) *
LTC2248CUH#PBF	QFN	32	C	$16.60	$12.50
LTC2248CUH#TRPBF	QFN	32	C		$12.60
LTC2248IUH#PBF	QFN	32	I	$20.75	$15.00
LTC2248IUH#TRPBF	QFN	32	I		$15.10

LTC2248 演示电路板

器件型号	描述
DC782A-B	LTC2248IUH \| High Speed ADC, VDD = +3.0V, 65Msps, 14-Bit 1MHz < Ain < 70MHz, 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

LTC2248 数据手册及相关资料下载

数据手册(英文) : LTC2248/LTC2247/LTC2246 - 14-Bit, 65/40/25Msps Low Power 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
软件和仿真: LTC2249 IBIS model.IBS