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

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 LTC1297 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	应用 Resolution: 12 Bits Fast Conversion Time: 12µs Max Over Temp Low Supply Current: 6.0mA Shutdown Supply Current: 5µA (LTC1297) 典型应用图参数

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

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

参数

LTC1297 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) *
LTC1297BCN8	PDIP	8	C	$23.50	$18.55
LTC1297BCN8#PBF	PDIP	8	C	$23.50	$18.55
LTC1297BIN8	PDIP	8	I	$26.10	$20.60
LTC1297BIN8#PBF	PDIP	8	I	$26.10	$20.60
LTC1297CCN8	PDIP	8	C	$18.75	$14.80
LTC1297CCN8#PBF	PDIP	8	C	$18.75	$14.80
LTC1297CIN8	PDIP	8	I	$20.75	$16.40
LTC1297CIN8#PBF	PDIP	8	I	$20.75	$16.40
LTC1297CMJ8/883	CERDIP	8	M		$215.00
LTC1297DCN8	PDIP	8	C	$12.10	$9.40
LTC1297DCN8#PBF	PDIP	8	C	$12.10	$9.40
LTC1297DIN8	PDIP	8	I	$13.60	$10.70
LTC1297DIN8#PBF	PDIP	8	I	$13.60	$10.70

LTC1297 数据手册及相关资料下载

数据手册(英文) : LTC1292/LTC1297 - Single Chip 12-Bit Data Acquisition Systems.PDF
应用指南 (英文) : AN52 - linear Technology Magazine Circuit Collection, Volume 1.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