Model:AD549KHZ
Model:AD549KHZ
Manufacturer：ADI
Stocks：8000
Describe：
AD549KHZ is a single-chip electrostatic sensor operational amplifier introduced by ADI. It is packaged in a TO-99-8 metal can and belongs to the Topgate™ series. This device achieves ultra-low input current through Topgate JFET technology, with the maximum input bias current being only 100 fA (AD549K). It is an ideal preamplifier for current-output sensors such as photodiodes, photomultipliers, and pH electrodes.
Features ：
• Ultra-low input bias current: Maximum 100 fA (AD549K)
• Low offset voltage: Maximum 0.50 mV (AD549K)
• Low offset drift: Maximum 15 µV/°C (AD549K)
• Low power consumption: Maximum supply current 700 µA
• Low noise: Peak-to-peak 4 µV (typical value) at 0.1Hz~10Hz
• Gain bandwidth product: 1 MHz
• Rate of rise: 3 V/µs
• Common-mode rejection ratio: 90 dB
• Operating voltage: Dual power supply ±5V ~ ±18V
• Operating temperature: 0°C ~ +70°C
• Package type: TO-99-8 metal can, through-hole mounting
Application：
• Electroscope amplifier
• Photo diode preamplifier
• pH electrode buffer
• Precision integrator and low attenuation sampling hold circuit
• Interface for current output type sensors such as oxygen sensors
