- 制造厂商:TI
- 产品类别:放大器
- 技术类目:仪表放大器
- 功能描述:用于温度控制的热敏电阻信号放大器
- 点击这里打开及下载INA330的技术文档资料
- TI代理渠道,提供当日发货、严格的质量标准,满足您的目标价格
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.
- 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)
- 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
- Number of channels (#)
- 1
- Vs (Max) (V)
- 5.5
- Vs (Min) (V)
- 2.7
- Gain (Min) (V/V)
- 1
- Gain (Max) (V/V)
- 1
- Features
- Shutdown
- Iq (Typ) (mA)
- 2.6
- Bandwidth at min gain (Typ) (MHz)
- 0.001
- Gain error (+/-) (Max) (%)
- 0.2
- Operating temperature range (C)
- -40 to 85
- Type
- Resistor
- Output swing headroom (to negative supply) (Typ) (V)
- 0.005
- Output swing headroom (to positive supply) (Typ) (V)
- -0.005
- Input common mode headroom (to negative supply) (Typ) (V)
- 0.1
- Input common mode headroom (to positive supply) (Typ) (V)
- -0.1
INA330的完整型号有:INA330AIDGST,以下是这些产品的关键参数及官网采购报价:
INA330AIDGST,工作温度:-40 to 85,封装:VSSOP (DGS)-10,包装数量MPQ:250个,MSL 等级/回流焊峰值温度:Level-2-260C-1 YEAR,引脚镀层/焊球材料:NIPDAUAG,TI官网INA330AIDGST的批量USD价格:2.033(1000+)
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