LTC1297 - Single Chip 12-Bit Data Acquisition Systems

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

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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.

特点
  • 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
典型应用
LTC1297 Typical Application
LTC1297 Typical Application
应用
  • Resolution: 12 Bits
  • Fast Conversion Time: 12µs Max Over Temp
  • Low Supply Current: 6.0mA
  • Shutdown Supply Current: 5µA (LTC1297)
封装信息
LTC1297 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) *
LTC1297BCN8#PBFN-8C$28.15$22.25
LTC1297CCN8#PBFN-8C$22.50$17.75
LTC1297DCN8#PBFN-8C$14.50$11.30
数据表
应用指南
可靠性数据
CAD 符号
相关产品
LTC1292/LTC1297 - Single Chip 12-Bit Data Acquisition Systems
AN67 - Linear Technology Magazine Circuit Collection, Volume III
R107 Reliability Data
LTC1297 Footprints and Symbols