High Voltage, Low Noise, Low Distortion, Unity Gain Stable, High Speed, Dual 8-Lead Op Amp

The ADA4898 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 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 is extremely versatile, and it features a cancellation circuit that reduces input bias current.

The ADA4898 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 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

* Ultralow noise

0.9 nV/√Hz

2.4 pA/√Hz

1.2 nV/√Hz at 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

* Unity gain stable

* Low input offset voltage: 160 µV maximum

* Low input offset voltage drift: 1 μV/°C

* Low input bias current: −0.1 µA

* Low input bias current drift: 2 nA/°C

* Supply current: 8 mA

* Power-down feature