INA330:用于温度控制的热敏电阻信号放大器

The INA330 is a precision amplifier designed for thermoelectric cooler (TEC) control in optical networking applications. It is optimized for use in 10k thermistor-based temperature controllers. The INA330 provides thermistor excitation and generates an output voltage proportional to the difference in resistances applied to the inputs. It uses only one precision resistor plus the thermistor, thus providing an alternative to the traditional bridge circuit. This new topology eliminates the need for two precision resistors while maintaining excellent accuracy for temperature control applications.

An excitation voltage is applied to the thermistor (RTHERM) and precision resistor (RSET), creating currents I1 and I2. The current conveyor circuit produces an output current, I0, equal to I1 – I2, which flows through the external gain-setting resistor. A buffered voltage output proportional to I0 is also provided.

The INA330 offers excellent long-term stability, and very low 1/f noise throughout the life of the product. The low offset results in a 0.009°C temperature error from –40°C to +85°C. It comes in MSOP-10 packaging and operates with supply voltages from +2.7V to +5.5V. It is specified over the industrial temperature range, –40°C to +85°C, with operation from –40°C to +125°C.

产品特性
  • OPTIMIZED FOR PRECISION 10k THERMISTOR APPLICATIONS
    • LOW OFFSET OVER TEMPERATURE:
         0.009°C Temperature Error, –40°C to +85°C
    • EXCELLENT LONG-TERM STABILITY
    • VERY LOW 1/f NOISE: (0.01Hz to 10Hz)
         (Peak-to-Peak Equivalent to 0.0001°C)
  • LOW OFFSET OVER TEMPERATURE:
       0.009°C Temperature Error, –40°C to +85°C
  • EXCELLENT LONG-TERM STABILITY
  • VERY LOW 1/f NOISE: (0.01Hz to 10Hz)
       (Peak-to-Peak Equivalent to 0.0001°C)
  • WIDE OUTPUT SWING: Within 10mV of Rails
  • SUPPLY RANGE: Single +2.7V to +5.5V
  • microPACKAGE: MSOP-10
  • REQUIRES ONLY ONE PRECISION RESISTOR
  • APPLICATIONS
    • THERMISTOR-BASED TEMPERATURE CONTROLLERS FOR OPTICAL NETWORKING
    • HIGH ACCURACY FOR TEC APPLICATIONS
    • LASER TEMPERATURE CONTROL
  • THERMISTOR-BASED TEMPERATURE CONTROLLERS FOR OPTICAL NETWORKING
  • HIGH ACCURACY FOR TEC APPLICATIONS
  • LASER TEMPERATURE CONTROL
参数parametrics
参数INA330
Number of Channels (#)1
Vs (Min) (V)2.7
Vs (Max) (V)5.5
Iq (Typ) (mA)2.6
Bandwidth at Min Gain (Typ) (MHz)0.001
Gain (Min) (V/V)1
Gain (Max) (V/V)1
Gain Error (+/-) (Max) (%)0.2
RatingCatalog
Operating Temperature Range (C)-40 to 85
Package GroupVSSOP
Approx. Price (US$)2.20 | 1ku
Package Size: mm2:W x L (PKG)10VSSOP: 15 mm2: 4.9 x 3(VSSOP)
数据表?(1)
标题类型大小 (KB)日期
INA330: Thermistor Signal Amplifier for Temperature ControlPDF8732002年 11月 6日
应用手册?(1)
标题类型大小 (KB)日期
所选封装材料的热学和电学性质PDF6452008年 10月 16日
选择与解决方案指南?(1)
标题类型大小 (KB)日期
模拟信号链路产品指南 (Rev. B)PDF55182013年 9月 3日
设计套件与评估板?(1)
培训内容型号类型
DLP? NIRscan? 评估模块DLPNIRSCANEVM评估模块和开发板
开发工具?(2)
培训内容型号类型
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订购型号
型号试生产 / 生产材料状态温度(oC)价格(美金) | Quantity封装 | 引脚器件标记封装数量 | 载体
INA330AIDGST生产ACTIVE-40 to 852.20 | 1kuVSSOP?(DGS)TLB250 | SMALL T&R
INA330AIDGSTG4生产ACTIVE-40 to 852.20 | 1kuVSSOP?(DGS)TLB250 | SMALL T&R
INA330: Thermistor Signal Amplifier for Temperature Control INA330
所选封装材料的热学和电学性质 DCP010505B
模拟信号链路产品指南 (Rev. B) BQ24392
INA330
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