FEATURES

HIGH BANDWIDTH: 300MHz (G = +10)

LOW INPUT VOLTAGE NOISE: 1.2nV/√Hz

VERY LOW DISTORTION: –100dBc (5MHz)

HIGH SLEW RATE: 600V/μs

HIGH DC ACCURACY: VIO = 150μV

LOW SUPPLY CURRENT: 12.6mA/ch

HIGH GAIN BANDWIDTH PRODUCT: 1650MHz

STABLE FOR GAINS ≥ +7V/V

APPLICATIONS

HIGH DYNAMIC RANGE ADC PREAMPS

LOW-NOISE, WIDEBAND, TRANSIMPEDANCE

AMPLIFIERS

WIDEBAND, HIGH GAIN AMPLIFIERS

LOW-NOISE DIFFERENTIAL RECEIVERS

VDSL LINE RECEIVERS

ULTRASOUND CHANNEL AMPLIFIERS

SECURITY SENSOR FRONT ENDS

DESCRIPTION

The OPA2846 provides two very low-noise, high gain

bandwidth, voltage-feedback op amps in a single

package. Operating from a low 12.6mA/channel quiescent

current, each channel provides a 1.2nV/√Hz input voltage

noise with a 1.65GHz gain bandwidth product. Minimum

stable gain is specified at +7V/V while exceptional flatness

is ensured at a gain of +10V/V.

The combination of low noise, high slew rate (600V/μs)

and broad bandwidth allow very high SFDR differential

receivers to be implemented. Additionally, decompensated,

low-noise, voltage-feedback op amps are ideal for

broadband transimpedance requirements. The dual channel

OPA2846 provides matched channels for high-speed

transimpedance requirements. With over 200MHz bandwidth

at a gain of 20dB, excellent gain and phase matching

are provided at IF frequencies for matched I and Q channel

amplifiers.