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OPA847 Datasheet

Part NameDescriptionManufacturer
OPA847 Wideband, Ultra-Low Noise, Voltage-Feedback OPERATIONAL AMPLIFIER with Shutdown TI
Texas Instruments TI
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DESCRIPTION
The OPA847 combines very high gain bandwidth and large signal performance with an ultra-low input noise voltage (0.85nV/√Hz) while using only 18mA supply current. Where power savings is critical, the OPA847 also includes an optional power shutdown pin that, when pulled low, disables the amplifier and decreases the supply current to < 1% of the powered-up value. This optional feature may be left disconnected to ensure normal amplifier operation when no power down is required.

FEATURES
HIGH GAIN BANDWIDTH: 3.9GHz
LOW INPUT VOLTAGE NOISE: 0.85nV/√Hz
VERY LOW DISTORTION: –105dBc (5MHz)
HIGH SLEW RATE: 950V/µs
HIGH DC ACCURACY: VIO< ±100µV
LOW SUPPLY CURRENT: 18.1mA
LOW SHUTDOWN POWER: 2mW
STABLE FOR GAINS ≥12

APPLICATIONS
HIGH DYNAMIC RANGE ADC PREAMPS
LOW NOISE, WIDEBAND, TRANSIMPEDANCE AMPLIFIERS
WIDEBAND, HIGH GAIN AMPLIFIERS
LOW NOISE DIFFERENTIAL RECEIVERS
ULTRASOUND CHANNEL AMPLIFIERS
IMPROVED UPGRADE FOR THE OPA687, CLC425, AND LMH6624

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