LTC1091 1, 2, 6 and 8 Channel, 10-Bit Serial I/O Data Acquisition Systems

The H (Metal Can), J (Ceramic), and K (Metal Can) Packages From linear Technology Are Now Obsolete

The high impedance analog inputs and the ability to operate with reduced spans (below 1V full scale) allow direct connection to sensors and transducers in many applications, eliminating the need for gain stages. An efficient serial port communicates without external hardware to most MPU serial ports and all MPU parallel I/O ports allowing eight channels of data to be transmitted over as few as three wires. This, coupled with low power consumption, makes remote location possible and facilitates transmitting data through isolation barriers. Temperature drift of offset, linearity and full-scale error are all extremely low (1ppm/°C typically) allowing all grades to be specified with offset and linearity errors of ±0.5LSB maximum over temperature. In addition, the A grade devices are specified with full-scale error and total unadjusted error (including the effects of offset, linearity and full-scale errors) of ±1LSB maximum over temperature. The lower grade has a full-scale specification of ±2LSB for applications where full scale is adjustable or less critical

产品特点 Features Programmable Features – Unipolar/Bipolar Conversions – Differential/Single-Ended Multiplexer Configurations Sample-and-Holds Single Supply 5V, 10V or ±5V Operation Direct 3- or 4-Wire Interface to Most MPU Serial Ports and All MPU Parallel I/O Ports Analog Inputs Common Mode to Supply Rails Resolution: 10 Bits Total Unadjusted Error (A Grade): ±1LSB Over Temp Fast Conversion Time: 20µs Low Supply Current LTC1091: 3.5mA Max, 1.5mA Typ LTC1092/LTC1093/LTC1094: 2.5mA Max, 1mA Typ	应用 Resolution: 10 Bits Total Unadjusted Error (LTC1091A): ±1/2LSB Max Conversion Time: 22µs Supply Current: 2.5mA Max, 1.0mA Typ 典型应用图参数

产品特点 Features

Programmable Features
– Unipolar/Bipolar Conversions
– Differential/Single-Ended Multiplexer Configurations
Sample-and-Holds
Single Supply 5V, 10V or ±5V Operation
Direct 3- or 4-Wire Interface to Most MPU Serial Ports and All MPU Parallel I/O Ports
Analog Inputs Common Mode to Supply Rails
Resolution: 10 Bits
Total Unadjusted Error (A Grade): ±1LSB Over Temp
Fast Conversion Time: 20µs
Low Supply Current
LTC1091: 3.5mA Max, 1.5mA Typ
LTC1092/LTC1093/LTC1094: 2.5mA Max, 1mA Typ

应用

Resolution: 10 Bits
Total Unadjusted Error (LTC1091A): ±1/2LSB Max
Conversion Time: 22µs
Supply Current: 2.5mA Max, 1.0mA Typ

典型应用图

参数

LTC1091 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) *
LTC1091ACN8	PDIP	8	C	$17.15	$14.95
LTC1091ACN8#PBF	PDIP	8	C	$17.15	$14.95
LTC1091CN8	PDIP	8	C	$11.70	$9.45
LTC1091CN8#PBF	PDIP	8	C	$11.70	$9.45

LTC1091 数据手册及相关资料下载

数据手册(英文) : LTC1091 - 1, 2, 6 and 8 Channel, 10-Bit Serial I/O Data Acquisition Systems.PDF
应用指南 (英文) : AN28 - Thermocouple Measurement.PDF
应用指南 (英文) : AN62 - Data Acquisition Circuit Collection.PDF
设计要点 (英文) : DN1 - New Data Acquisition Systems Communicate with Microprocessors Over 4 Wires.PDF
设计要点 (英文) : DN5 - Temperature Measurement Using the LTC1091/91/92 Series of Data Acquisition Systems.PDF
可靠性数据 : R061 Reliability Data .PDF