LTC1294 Single Chip 12-Bit Data Acquisition System

The input multiplexer can be configured for either single ended or differential inputs (or combinations thereof). An on-chip sample and hold is included for all single ended input channels. When the LTC1293/4/6 is idle it can be powered down in applications where low power consumption is desired. The LTC1296 includes a System Shutdown Output pin which can be used to power down external circuitry, such as signal conditioning circuitry prior to the input mux.

The serial I/O is designed to communicate without external hardware to most MPU serial ports and all MPU parallel I/O ports allowing up to eight channels of data to be transmitted over as few as three wires

产品特点 Features Software Programmable Features: Unipolar/Bipolar Conversion Differential/Single Ended Inputs MSB-First or MSB/LSB Data Built-In Sample and Hold Single Supply 5V or ±5V Operation Direct 4-Wire Interface to Most MPU Serial Ports and All MPU Parallel Ports 46.5kHz Maximum Throughput Rate System Shutdown Output (LTC1296) 封装	典型应用图

产品特点 Features

Software Programmable Features: Unipolar/Bipolar Conversion Differential/Single Ended Inputs MSB-First or MSB/LSB Data
Built-In Sample and Hold
Single Supply 5V or ±5V Operation
Direct 4-Wire Interface to Most MPU Serial Ports and All MPU Parallel Ports
46.5kHz Maximum Throughput Rate
System Shutdown Output (LTC1296)

封装

典型应用图

LTC1294 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) *
LTC1294BCN	PDIP	20	C	$25.00	$19.75
LTC1294BCN#PBF	PDIP	20	C	$25.00	$19.75
LTC1294BCSW	SO	20	C	$30.00	$23.70
LTC1294BCSW#PBF	SO	20	C	$30.00	$23.70
LTC1294BCSW#TR	SO	20	C		$23.80
LTC1294BCSW#TRPBF	SO	20	C		$23.80
LTC1294CCN	PDIP	20	C	$18.75	$14.80
LTC1294CCN#PBF	PDIP	20	C	$18.75	$14.80
LTC1294CCSW	SO	20	C	$24.00	$18.95
LTC1294CCSW#PBF	SO	20	C	$24.00	$18.95
LTC1294CCSW#TR	SO	20	C		$19.05
LTC1294CCSW#TRPBF	SO	20	C		$19.05
LTC1294DCN	PDIP	20	C	$12.10	$9.40
LTC1294DCN#PBF	PDIP	20	C	$12.10	$9.40
LTC1294DCSW	SO	20	C	$14.50	$11.15
LTC1294DCSW#PBF	SO	20	C	$14.50	$11.15
LTC1294DCSW#TR	SO	20	C		$11.25
LTC1294DCSW#TRPBF	SO	20	C		$11.25

LTC1294 数据手册及相关资料下载

数据手册(英文) : LTC1293/LTC1294/LTC1296 - Single Chip 12-Bit Data Acquisition System.PDF
规格变更通知书 : LTC1293/LTC1294/LTC1296 - SPECIFICATION NOTICE.PDF
应用指南 (英文) : AN62 - Data Acquisition Circuit Collection.PDF
设计要点 (英文) : DN22 - New 12-Bit Data Acquisition Systems Communicate with Microprocessors Over 4 Wires.PDF
可靠性数据 : R107 Reliability Data .PDF