LT1495 1.5µA Max, Single, Dual and Quad Precision Rail-to-Rail Input and Output Op Amps

The LT®1494/LT1495/LT1496 are the lowest power (IS <=­ 1.5µA) op amps with precision specifications. The extremely low supply current is combined with excellent amplifier specifications: input offset voltage is 375µV maximum with a typical drift of only 0.4µV/°C, input offset current is 100pA maximum. A minimum open-loop gain (AVOL) of 100V/mV ensures that gain errors are small. The device characteristics change little over the supply range of 2.2V to ±15V. Supply rejection is 90dB and the common mode rejection ratio is 90dB. Operation is specified for 3V, 5V and ±15V supplies. Reverse battery protection (–18V min) and inputs that operate above the positive supply make the LT1494/LT1495/LT1496 easy to use in harsh environments.

The low bias currents and offset current of the amplifier permit the use of megohm level source resistors without introducing significant errors. Voltage noise at 4µVP-P is remarkably low considering the low supply current.

The LT1494 is available in the 8-Pin MSOP, PDIP and SO packages.The LT1495 is available in plastic 8-Pin PDIP and SO packages with the standard dual op amp pinout. The LT1496 is available in 14-Pin SO and PDIP packages

产品特点 Features
  • Low Supply Current: 1.5µA Max
  • Rail-to-Rail Input and Output
  • Low Offset Voltage: 375µV Max
  • Wide Supply Range: 2.2V to 36V
  • Single Supply Input Range: –0.3V to 36V
  • Low Input Bias Current: 250pA
  • Low Input Offset Current: 20pA
  • High AVOL: 100V/mV Minimum Driving 100k ohms Load
  • Output Sources and Sinks 500µA Load Current
  • Reverse Battery Protected to 18V
  • Operating Temperature Range: -40°C to 125°C (LT1494)
  • Over-The-Top™ Inputs Operate Above V+
参数
LT1495 参数
应用
  • Battery- or Solar-Powered Systems
  • Portable Instrumentation
  • Remote Sensor Amplifier
  • Micropower Filter
典型应用图
LT1495 典型应用
LT1495 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) *
LT1495CN8 PDIP 8 C $3.20  $2.45 
LT1495CN8#PBF PDIP 8 C $3.20  $2.45 
LT1495CS8 SO 8 C $3.30  $2.55 
LT1495CS8#PBF SO 8 C $3.30  $2.55 
LT1495CS8#TR SO 8 C $2.61 
LT1495CS8#TRPBF SO 8 C $2.61 
LT1495HS8 SO 8 H $4.00  $3.25 
LT1495HS8#PBF SO 8 H $4.00  $3.25 
LT1495HS8#TR SO 8 H $3.31 
LT1495HS8#TRPBF SO 8 H $3.31 
LT1495IN8 PDIP 8 I $3.70  $2.90 
LT1495IN8#PBF PDIP 8 I $3.70  $2.90 
LT1495IS8 SO 8 I $3.80  $3.00 
LT1495IS8#PBF SO 8 I $3.80  $3.00 
LT1495IS8#TR SO 8 I $3.06 
LT1495IS8#TRPBF SO 8 I $3.06 
LT1495 数据手册及相关资料下载
  1. 数据手册(英文) : LT1494/LT1495/LT1496 - 1.5µA Max, Single, Dual and Quad Precision Rail-to-Rail Input and Output Op Amps.PDF
  2. 应用指南 (英文) : AN75 - Circuitry for Signal Conditioning and Power Conversion.PDF
  3. 应用指南 (英文) : AN82 - Understanding and Applying Voltage References.PDF
  4. 应用指南 (英文) : AN87 - linear Technology Magazine Circuit Collection, Volume V: Data Conversion, Interface and Signal Conditioning Products.PDF
  5. 设计要点 (英文) : DN161 - The Smart Rock.PDF
  6. 设计要点 (英文) : DN163 - 1µA Op Amp Permits Precision Portable Circuitry.PDF
  7. 设计要点 (英文) : DN204 - UL Isolated Self-Powered Sensing.PDF
  8. 可靠性数据 : R334 Reliability Data .PDF
  9. LT Journal : Jun 1999 4.5µA Li-Ion Battery Protection Circuit.PDF