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.

特点
  • 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 CurrentLTC1091: 3.5mA Max, 1.5mA TypLTC1092/LTC1093/LTC1094: 2.5mA Max, 1mA Typ
典型应用
LTC1091 Typical Application
LTC1091 Typical Application
封装信息
LTC1091 Package Drawing
LTC1091 Package Drawing
LTC1091 Package Drawing
LTC1091 Package Drawing
Order Information 订购型号
器件型号封装温度价格 (以 1 ~ 99 片为批量)价格 (以 1000 片为批量) *
LTC1091ACN8#PBFN-8C$17.15$14.95
LTC1091CN8#PBFN-8C$11.70$9.45
数据表
应用指南
设计要点
可靠性数据
CAD 符号
相关产品
LTC1091 - 1, 2, 6 and 8 Channel, 10-Bit Serial I/O Data Acquisition Systems
LTC1094 Package Drawing LTC1094
LTC1094 Package Drawing LTC1094
LTC1094 Package Drawing LTC1094
AN26 (A-R) - Interfacing the LTC1090/1/2
AN28 - Thermocouple Measurement
AN62 - Data Acquisition Circuit Collection
DN1 - Data Acquisition Systems Communicate with Microprocessors Over 4 Wires
DN5 - Temperature Measurement Using Data Acquisition Systems
R061 Reliability Data
LTC1091 Footprints and Symbols