Analog Devices AD546
The AD546 is a monolithic electrometer combining the virtues of low (1 pA) input bias current with the cost effectiveness of a plastic mini-DIP package. Both input offset voltage and input offset voltage drift are laser trimmed, providing very high performance for such a low cost amplifier. The 1015 Ω common-mode impedance, resulting from a bootstrapped input stage, insures that input bias current is essentially independent of common-mode voltage variations.| Part No. | AD546 |
|---|---|
| Datasheet | AD546 Download |
| Manufacturer |  Analog Devices |
| Description | 1 pA Monolithic Electrometer Operational Amplifier |
| Buy | Stock & Price |
FEATURES
DC PERFORMANCE 1 mV max Input Offset Voltage Low Offset Drift: 20●V/؇C 1 pA max Input Bias Current Input Bias Current Guaranteed Over Full Common-Mode Voltage Range AC PERFORMANCE 3 V/●s Slew Rate 1 MHz Unity Gain Bandwidth Low Input Voltage Noise: 4
●V p-p, 0.1 Hz to 10 Hz Available in a Low Cost, 8-Pin Plastic Mini-DIP Standard Op Amp Pinout
APPLICATIONS
Electrometer Amplifiers Photodiode Preamps pH Electrode Buffers Log Ratio Amplifiers 1 pA Monolithic Electrometer Operational Amplifier AD546* CONNECTION DIAGRAM 8-Pin Plastic Mini-DIP Package PRODUCTDESCRIPTION
Input bias currents are reduced significantly by using “topgate” JFET technology. The AD546 is suitable for applications requiring both minimal levels of input bias current and low input offset voltage.APPLICATIONS
for the AD546 include use as a buffer amplifier for current output transducers such as photodiodes and pH probes. It may also be used as a precision integrator or as a low droop rate sample and hold amplifier.
