High Voltage, Low Noise, Low Distortion, Unity Gain Stable, High Speed Op Amp

The ADA4898-1 is an ultralow noise and distortion, unity gain stable, voltage feedback op amp that is ideal for use in 16-bit and 18-bit systems with power supplies from ±5 V to ±16 V. The ADA4898-1 features a linear, low noise input stage and internal compensation that achieves high slew rates and low noise.

With the wide supply voltage range, low offset voltage, and wide bandwidth, the ADA4898-1 is extremely versatile, and it features a cancellation circuit that reduces input bias current. The ADA4898-1 is available in an 8-lead SOIC package that features an exposed metal paddle to improve power dissipation and heat transfer to the negative supply plane. This EPAD offers a significant thermal relief over traditional plastic packages. The ADA4898-1 is rated to work over the extended industrial temperature range of −40°C to +105°C.

Applications

* Instrumentation

* Active filters

* DAC buffers

* SAR ADC drivers

* Optoelectronics

Data Sheet, Rev. B, 6/09

* Ultralow noise:

0.9 nV/√Hz

2.4 pA/√Hz

1.2 nV/√Hz @10 Hz

* Ultralow distortion: −93 dBc at 500 kHz

* Wide supply voltage range: ±5 V to ±16 V

* High speed:

−3 dB bandwidth: 65 MHz (G = +1)

Slew rate: 55 V/μs