OPA687N

Wideband, Ultra-Low Noise, Voltage Feedback OPERATIONAL AMPLIFIER With Power Down

DESCRIPTION

The OPA687 combines a very high gain bandwidth and large signal performance with an ultra-low input noise voltage 0.95nV/√Hz while dissipating only 18mA supply current. Where power savings is paramount, the OPA687 also includes an optional power down pin that, when pulled low, will disable the amplifier and decrease the quiescent current to only 1% of its powered up value. This optional feature may be left disconnected to insure normal amplifier operation when no power-down is required.

FEATURES

● HIGH GAIN BANDWIDTH: 3.8GHz

● LOW INPUT VOLTAGE NOISE: 0.95nV/√Hz

● VERY LOW DISTORTION: –95dBc 5MHz

● LOW DISABLED POWER: 2mW

● VERY HIGH SLEW RATE: 900V/µs

● STABLE FOR G ≥ 12

APPLICATIONS

● LOW DISTORTION ADC DRIVER

● OC-3 FIBER OPTIC RECEIVER

● LOW NOISE DIFFERENTIAL AMPLIFIERS

● EQUALIZING RECEIVERS

● ULTRASOUND CHANNEL AMPLIFIERS

● IMPROVED REPLACEMENT FOR THE CLC425