ADA4899-1

1内华达州/ √Hz的低功耗，轨到轨输出放大器 1 nV/√Hz, Low Power, Rail-to-Rail Output Amplifiers

Product Details

The is an ultralow noise 1 nV/√Hz and distortion <−117 dBc @1 MHz unity-gain stable voltage feedback op amp, the combination of which makes it ideal for 16-bit and 18-bit systems. The ADA4899-1 features a linear, low noise input stage and internal compensation that achieves high slew rates and low noise even at unity gain. The Analog Devices, Inc. proprietary next-generation XFCB process and innovative circuit design enable such high performance amplifiers.

The ADA4899-1 drives 100 Ω loads at breakthrough performance levels with only 15 mA of supply current. With the wide supply voltage range 4.5 V to 12 V, low offset voltage 230 μV maxi-mum, wide bandwidth 600 MHz, and slew rate 310 V/μs, the ADA4899-1 is designed to work in the most demanding applications. The ADA4899-1 also features an input bias current cancellation mode that reduces input bias current by a factor of 60.

The ADA4899-1 is available in a 3 mm × 3 mm LFCSP and an 8-lead SOIC package. Both packages feature an exposed metal paddle that improves heat transfer to the ground plane, which is a significant improvement over traditional plastic packages. The ADA4899-1 is rated to work over the extended industrial temperature range, −40°C to +125°C.

**Applications**

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Analog-to-digital drivers

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Instrumentation

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Filters

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IF and baseband amplifiers

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DAC buffers

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Optical electronics

### Features and Benefits

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Unity-gain stable

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Ultralow noise: 1 nV/√Hz, 2.6 pA/√Hz

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Ultralow distortion −117 dBc at 1 MHz

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High speed

−3 dB bandwidth: 600 MHz G = +1

Slew rate: 310 V/μs

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Offset voltage: 230 μV maximum

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Low input bias current: 100 nA

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Wide supply voltage range: 5 V to 12 V

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Supply current: 14.7 mA

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High performance pinout

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Disable mode