FEATURES
LOW INPUT NOISE VOLTAGE: 2.0nV/√Hz
HIGH UNITY GAIN BANDWIDTH: 500MHz
HIGH GAIN BANDWIDTH PRODUCT: 240MHz
HIGH OUTPUT CURRENT: 90mA
SINGLE +5V TO +12V OPERATION
LOW SUPPLY CURRENT: 4.8mA/ch

APPLICATIONS
xDSL DIFFERENTIAL LINE RECEIVERS
HIGH DYNAMIC RANGE ADC DRIVERS
LOW NOISE PLL INTEGRATORS
TRANSIMPEDANCE AMPLIFIERS
PRECISION BASEBAND I/Q AMPLIFIERS
ACTIVE FILTERS

DESCRIPTION
The OPA2822 offers very low 2.0nV/√Hz input noise in a
wideband, unity-gain stable, voltage-feedback architecture.
Intended for xDSL receiver applications, the OPA2822 also
supports this low input noise with exceptionally low harmonic
distortion, particularly in differential configurations. Adequate
output current is provided to drive the potentially heavy load
of a passive filter between this amplifier and the codec.
Harmonic distortion for a 2VPP differential output operating
from +5V to +12V supplies is ≤ –100dBc through 1MHz input
frequencies. Operating on a low 4.8mA/ch supply current,
the OPA2822 can satisfy all xDSL receiver requirements
over a wide range of possible supply voltages—from a single
+5V condition, to ±5V, up to a single +12V design.
General-purpose applications on a single +5V supply will
benefit from the high input and output voltage swing available
on this reduced supply voltage. Low-cost precision integrators
for PLLs will also benefit from the low voltage noise and
offset voltage. Baseband I/Q receiver channels can achieve
almost perfect channel match with noise and distortion to
support signals through 5MHz with > 14-bit dynamic range.