LTC1740 14-Bit, 6Msps, Sampling ADC

The LTC®1740 is a 6Msps, 14-bit sampling A/D converter that draws only 245mW from either a single 5V or dual ±5V supplies. This easy-to-use device includes a high dynamic range sample-and-hold and a programmable precision reference.

The LTC1740 has a flexible input circuit that allows differential full-scale input ranges of ±2.5V and ±1.25V with the internal reference, or any full-scale input range up to ±2.5V with an external reference. The input common mode voltage is arbitrary, though a 2.5V reference is provided for single supply applications.

DC specifications include 1LSB typical INL, 0.5LSB typical DNL and no missing codes over temperature. Outstanding AC performance includes 79dB S/(N + D) and 91dB SFDR at an input frequency of 2.5MHz.

The unique differential input sample-and-hold can acquire single-ended or differential input signals up to its 80MHz bandwidth. The 75dB common mode rejection allows users to eliminate ground loops and common mode noise by measuring signals differentially from the source. A separate output logic supply allows direct connection to 3V components

产品特点 Features 6Msps Sample Rate 79dB S/(N + D) and 91dB SFDR at 2.5MHz fIN Single 5V Supply or ±5V Supplies Integral Nonlinearity Error: <1LSB Differential Nonlinearity: < 0.5LSB 80MHz Full-Power Bandwidth Sampling ±2.5V and ±1.25V Bipolar Input Ranges 2.5V Signal Ground Available Out-of-Range Indicator True Differential Inputs with 75dB CMRR Power Dissipation: 245mW 36-Pin SSOP Package (0.209 Inch Width) 封装	应用 Telecommunications Multiplexed Data Acquisition Systems High Speed Data Acquisition Spectral Analysis Imaging Systems 典型应用图参数

产品特点 Features

6Msps Sample Rate
79dB S/(N + D) and 91dB SFDR at 2.5MHz fIN
Single 5V Supply or ±5V Supplies
Integral Nonlinearity Error: <1LSB
Differential Nonlinearity: < 0.5LSB
80MHz Full-Power Bandwidth Sampling
±2.5V and ±1.25V Bipolar Input Ranges
2.5V Signal Ground Available
Out-of-Range Indicator
True Differential Inputs with 75dB CMRR
Power Dissipation: 245mW
36-Pin SSOP Package (0.209 Inch Width)

封装

应用

Telecommunications
Multiplexed Data Acquisition Systems
High Speed Data Acquisition
Spectral Analysis
Imaging Systems

典型应用图

参数

LTC1740 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) *
LTC1740CG	SSOP	36	C	$19.95	$17.20
LTC1740CG#PBF	SSOP	36	C	$19.95	$17.20
LTC1740CG#TR	SSOP	36	C		$17.30
LTC1740CG#TRPBF	SSOP	36	C		$17.30
LTC1740IG	SSOP	36	I	$23.50	$20.25
LTC1740IG#PBF	SSOP	36	I	$23.50	$20.25
LTC1740IG#TR	SSOP	36	I		$20.35
LTC1740IG#TRPBF	SSOP	36	I		$20.35

LTC1740 数据手册及相关资料下载

数据手册 : DN259 - A-to-D Converter Does Frequency Translation .PDF
应用指南 : AN71 - The Care and Feeding of High Performance ADCs.PDF
设计要点 : DN146 - LTC1740: 1.25Msps, 12-Bit ADC Conserves Power and Signal Integrity on a Single 5V Supply.PDF
可靠性数据 : R380 Reliability Data .PDF
产品选型卡 : Differential Amplifiers/High Speed ADC Drivers .PDF
LT Journal: Jun 1999 A Clean 12-Bit, 10Msps ADC..PDF