LTC2297 Dual 14-Bit, 65/40/25Msps Low Power 3V ADCs

The LTC®2298/LTC2297/LTC2296 are 14-bit 65Msps/40Msps/25Msps, low power dual 3V A/D converters designed for digitizing high frequency, wide dynamic range signals. The LTC2298/LTC2297/LTC2296 are perfect for demanding imaging and communications applications with AC performance that includes 74dB SNR and 85dB SFDR for signals well beyond the Nyquist frequency.

DC specs include ±1.2LSB 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 3.3V logic. An optional multiplexer allows both channels to share a digital output bus.

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 Integrated Dual 14-Bit ADCs Sample Rate: 65Msps/40Msps/25Msps Single 3V Supply (2.7V to 3.4V) Low Power: 400mW/235mW/150mW 74.3dB SNR 90dB SFDR 110dB Channel Isolation at 100MHz Multiplexed or Separate Data Bus 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 105Msps: LTC2282 (12-Bit), LTC2284 (14-Bit) 80Msps: LTC2294 (12-Bit), LTC2299 (14-Bit) 65Msps: LTC2293 (12-Bit), LTC2298 (14-Bit) 40Msps: LTC2292 (12-Bit), LTC2297 (14-Bit) 25Msps: LTC2291 (12-Bit), LTC2296 (14-Bit) 64-Pin (9mm × 9mm) QFN Package 封装	应用 Wireless and Wired Broadband Communication Imaging Systems Spectral Analysis Portable Instrumentation 典型应用图参数

产品特点 Features

Integrated Dual 14-Bit ADCs
Sample Rate: 65Msps/40Msps/25Msps
Single 3V Supply (2.7V to 3.4V)
Low Power: 400mW/235mW/150mW
74.3dB SNR
90dB SFDR
110dB Channel Isolation at 100MHz
Multiplexed or Separate Data Bus
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
105Msps: LTC2282 (12-Bit), LTC2284 (14-Bit)
80Msps: LTC2294 (12-Bit), LTC2299 (14-Bit)
65Msps: LTC2293 (12-Bit), LTC2298 (14-Bit)
40Msps: LTC2292 (12-Bit), LTC2297 (14-Bit)
25Msps: LTC2291 (12-Bit), LTC2296 (14-Bit)
64-Pin (9mm × 9mm) QFN Package

封装

应用

Wireless and Wired Broadband Communication
Imaging Systems
Spectral Analysis
Portable Instrumentation

典型应用图

参数

LTC2297 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) *
LTC2297CUP	QFN	64	C	$16.07	$11.25
LTC2297CUP#PBF	QFN	64	C	$16.07	$11.25
LTC2297CUP#TR	QFN	64	C		$11.35
LTC2297CUP#TRPBF	QFN	64	C		$11.35
LTC2297IUP	QFN	64	I	$19.29	$13.50
LTC2297IUP#PBF	QFN	64	I	$19.29	$13.50
LTC2297IUP#TR	QFN	64	I		$13.60
LTC2297IUP#TRPBF	QFN	64	I		$13.60

LTC2297 演示电路板

器件型号	描述
DC816A-C	LTC2297IUP \| MUX DUAL ADC, VDD=+3.0V, 40Msps, 14Bit, 1MHz < AIN < 70MHz, (req. DC718)
DC851A-C	LTC2297IUP \| DeMUX Dual ADC, +3.0V, 40Msps 14-Bit 1MHz < Ain < 70MHz, (req. DC890)

Companion Boards

器件型号	描述
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
DC890B	High Speed (up to 250Mbps, CMOS/LVDS) USB Data Collection Board

LTC2297 数据手册及相关资料下载

数据手册(英文) : LTC2298/LTC2297/LTC2296 - Dual 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 : 14-/12-Bit Quad & Dual, Serial LVDS ADCs .PDF
软件和仿真: LTC229X IBIS model.IBS