精密放大器 LT1636 - Over-The-Top Micropower Rail-to-Rail Input and Output Op Amp
DESCRIPTION
The LT®1636 op amp operates on all single and split supplies with a total voltage of 2.7V to 44V drawing less than 50µA of quiescent current. The LT1636 can be shut down, making the output high impedance and reducing the quiescent current to 4µA. The LT1636 has a unique input stage that operates and remains high impedance when above the positive supply. The inputs take 44V both differential and common mode, even
when operating on a 3V supply.
FEATURES
■ Rail-to-Rail Input and Output
■ Micropower: 50µA IQ, 44V Supply
■ Operating Temperature Range: – 40°C to 125°C
■ Over-The-Top®: Input Common Mode Range Extends 44V Above VEE, Independent of VCC
■ Low Input Offset Voltage: 225µV Max
■ Specified on 3V, 5V and ±15V Supplies
■ High Output Current: 18mA
■ Output Shutdown
■ Output Drives 10,000pF with Output Compensation
■ Reverse Battery Protection to 27V
■ High Voltage Gain: 2000V/mV
■ High CMRR: 110dB
■ 220kHz Gain-Bandwidth Product
■ 8-Lead DFN, MSOP, PDIP and SO Packages
APPLICATIONS
■ Battery- or Solar-Powered Systems
Portable Instrumentation
Sensor Conditioning
■ Supply Current Sensing
■ Battery Monitoring
■ MUX Amplifiers
■ 4mA to 20mA Transmitters
