The AD704BQ is a high-performance operational amplifier from Analog Devices Inc., designed to cater to a wide array of applications that require extremely low input bias currents. This quad bipolar op amp is particularly well-suited for high-impedance sensor amplification and precise current measurements in instrumentation, medical equipment, and professional audio systems.
Key Features
- Exceptionally Low Input Bias Currents: The AD704BQ boasts picoampere-level input bias currents, making it ideal for circuits with high source impedances where bias current errors must be minimized.
- High Input Impedance: With a very high input impedance, this op amp maintains signal integrity and reduces loading on the input signal source.
- Low Offset Voltage: The device provides a low offset voltage, which enhances the accuracy of the signal processing in precision applications.
- Wide Supply Voltage Range: It operates effectively over a wide range of supply voltages, accommodating various system designs and requirements.
- Quad Amplifier Configuration: The AD704BQ integrates four independent op amps in a single package, saving space and reducing component count in complex circuits.
Applications
- High-impedance buffering
- Photodiode amplification
- Precision current-to-voltage conversion
- Professional audio equipment
- Medical instrumentation
- Data acquisition systems
Product Specifications
| Parameter |
Value |
| Number of Circuits |
4 |
| Input Bias Current |
25 pA |
| Input Offset Voltage |
1 mV |
| Supply Voltage Range |
±4.5V to ±18V |
| Package |
14-CDIP (0.300", 7.62mm) |
The AD704BQ from Analog Devices Inc. is a versatile and precise operational amplifier that enhances the performance and reliability of high-precision circuits. Its low input bias current and high input impedance make it an excellent choice for sensitive applications requiring accurate signal amplification.