OPA2822UG4 Datasheet, PDF (1/33 Pages) Texas Instruments – Dual, Wideband, Low-Noise Operational Amplifier

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OPA2822
OPA2822
SBOS188E – MARCH 2001 – REVISED AUGUST 2008
Dual, Wideband, Low-Noise
Operational Amplifier
FEATURES
q LOW INPUT NOISE VOLTAGE: 2.0nV/√Hz
q HIGH UNITY GAIN BANDWIDTH: 500MHz
q HIGH GAIN BANDWIDTH PRODUCT: 240MHz
q HIGH OUTPUT CURRENT: 90mA
q SINGLE +5V TO +12V OPERATION
q LOW SUPPLY CURRENT: 4.8mA/ch
APPLICATIONS
q xDSL DIFFERENTIAL LINE RECEIVERS
q HIGH DYNAMIC RANGE ADC DRIVERS
q LOW NOISE PLL INTEGRATORS
q TRANSIMPEDANCE AMPLIFIERS
q PRECISION BASEBAND I/Q AMPLIFIERS
q ACTIVE FILTERS
OPA2677
n:1
R_O
xDSL Driver
R_O
500Ω
1kΩ
500Ω
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 2V_PP 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 integra-
tors 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.
OPA2822 RELATED PRODUCTS
FEATURES
High Slew Rate
R/R Input/Output
1.3nV Input Noise
1.5nV Input Noise
SINGLES
OPA690
OPA353
OPA846
—
DUALS
OPA2690
OPA2353
OPA2686
THS6062
TRIPLES
OPA3690
—
—
—
OPA2822
500Ω
1kΩ
xDSL Receiver
OPA2822
500Ω
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Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
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PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
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