LTC1392 Micropower Temperature, Power Supply and Differential Voltage Monitor
The LTC™1392 is a micropower data acquisition system designed to measure temperature, on-chip supply voltage and a differential voltage. The differential inputs feature rail-to-rail common mode input voltage range. The LTC1392 contains a temperature sensor, a 10-bit A/D converter with sample-and-hold, a high accuracy bandgap reference and a 3-wire half-duplex serial interface. The LTC1392 can be programmed to measure ambient temperature, power supply voltage and an external voltage at the differential input pins, that can also be used for current measurement using an external sense resistor. When measuring temperature, the output code of the A/D converter is linearly proportional to the temperature in °C. Production trimming achieves �2°C initial accuracy at room temperature and �4°C over the full �40°C to 85°C temperature range. The on-chip serial port allows efficient data transfer to a wide range of MPUs over three or four wires. This, coupled with low power consumption, makes remote location sensing possible and facilitates transmitting data through isolation barriers.
产品特点 Features
- Complete Ambient Temperature Sensor Onboard
- System Power Supply Monitor
- 10-Bit Resolution Rail-to-Rail Common-Mode Differential Voltage Input
- Available in 8-Pin SO and PDIP
- 0.2µA Supply Current When Idle
- 700µA Supply Current When Sampling at Maximum Rate
- Single Supply Voltage: 4.5V to 6V
- 3-Wire Half-Duplex Serial I/O
- Communicates with Most MPU Serial Ports and All MPU Parallel I/O Ports
参数
 |
应用
- Temperature Measurement
- Power Supply Measurement
- Current Measurement
- Remote Data Acquisition
- Environment Monitoring
典型应用图
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LTC1392 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) * |
| LTC1392CN8 |
PDIP |
8 |
C |
$5.00 |
$3.95 |
| LTC1392CN8#PBF |
PDIP |
8 |
C |
$5.00 |
$3.95 |
| LTC1392CS8 |
SO |
8 |
C |
$5.10 |
$4.05 |
| LTC1392CS8#PBF |
SO |
8 |
C |
$5.10 |
$4.05 |
| LTC1392CS8#TR |
SO |
8 |
C |
|
$4.11 |
| LTC1392CS8#TRPBF |
SO |
8 |
C |
|
$4.11 |
| LTC1392IN8 |
PDIP |
8 |
I |
$5.90 |
$4.70 |
| LTC1392IN8#PBF |
PDIP |
8 |
I |
$5.90 |
$4.70 |
| LTC1392IS8 |
SO |
8 |
I |
$6.25 |
$4.95 |
| LTC1392IS8#PBF |
SO |
8 |
I |
$6.25 |
$4.95 |
| LTC1392IS8#TR |
SO |
8 |
I |
|
$5.01 |
| LTC1392IS8#TRPBF |
SO |
8 |
I |
|
$5.01 |
LTC1392 数据手册及相关资料下载
- 数据手册(英文) : LTC1392 - Micropower Temperature, Power Supply and Differential Voltage Monitor.PDF
- 应用指南 (英文) : AN67 - linear Technology Magazine Circuit Collection, Volume III.PDF
- 设计要点 (英文) : DN106 - The LTC1392: Temperature and Voltage Measurement in a Single Chip.PDF
- 设计要点 (英文) : DN149 - LTC1392 Monitors System Temperature and Multiple Supply Voltages and Currents.PDF
- 可靠性数据 : R107 Reliability Data .PDF
- 产品选型卡 : Voltage Monitors & Supervisors Quick Guide.PDF
