LTC1292 Single Chip 12-Bit Data Acquisition Systems

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

The LTC®1292/LTC1297 are data acquisition systems that contain a 12-bit, switched-capacitor successive approximation A/D, a differential input, sample-and-hold on the (+) input, and serial I/O. When the LTC1297 is idle between conversions it automatically powers down reducing the supply current to 5µA, typically. The LTC1292 is capable of digitizing signals at a 60kHz rate and with the device’s excellent AC characteristics, it can be used for DSP applications. All these features are packaged in an 8-pin DIP and are made possible using LTCMOS™ switched-capacitor technology.

The serial I/O is designed to communicate without external hardware to most MPU serial ports and all MPU parallel I/O ports allowing data to be transmitted over three wires. Because of their accuracy, ease of use and small package size these devices are well suited for digitizing analog signals in remote applications where minimum number of interconnects and power consumption are important.

产品特点 Features
  • Built-In Sample-and-Hold
  • Single Supply 5V Operation
  • 60kHz Maximum Throughput Rate (LTC1292)
  • Power Shutdown After Each Conversion (LTC1297)
  • Direct 3-Wire Interface to Most MPU Serial Ports and All MPU Parallel Ports
  • Analog Inputs Common Mode to Supply Rails
封装
LTC1292 封装

 

应用
  • Resolution: 12 Bits
  • Fast Conversion Time: 12µs Max Over Temp
  • Low Supply Current: 6.0mA
  • Shutdown Supply Current: 5µA (LTC1297)
典型应用图
LTC1292 典型应用
参数
LTC1292 参数
LTC1292 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) *
LTC1292BCN8 PDIP 8 C $23.50  $18.55 
LTC1292BCN8#PBF PDIP 8 C $23.50  $18.55 
LTC1292BIN8 PDIP 8 I $26.10  $20.60 
LTC1292BIN8#PBF PDIP 8 I $26.10  $20.60 
LTC1292CCN8 PDIP 8 C $18.75  $14.80 
LTC1292CCN8#PBF PDIP 8 C $18.75  $14.80 
LTC1292CIN8 PDIP 8 I $20.75  $16.40 
LTC1292CIN8#PBF PDIP 8 I $20.75  $16.40 
LTC1292CMJ8/883 CERDIP 8 M $215.00 
LTC1292DCN8 PDIP 8 C $12.10  $9.40 
LTC1292DCN8#PBF PDIP 8 C $12.10  $9.40 
LTC1292DIN8 PDIP 8 I $13.60  $10.70 
LTC1292DIN8#PBF PDIP 8 I $13.60  $10.70 
LTC1292 数据手册及相关资料下载
  1. 数据手册(英文) : LTC1292/LTC1297 - Single Chip 12-Bit Data Acquisition Systems.PDF
  2. 应用指南 (英文) : AN52 - linear Technology Magazine Circuit Collection, Volume 1.PDF
  3. 应用指南 (英文) : AN62 - Data Acquisition Circuit Collection.PDF
  4. 设计要点 (英文) : DN22 - New 12-Bit Data Acquisition Systems Communicate with Microprocessors Over 4 Wires.PDF
  5. 可靠性数据 : R107 Reliability Data .PDF