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OPA4228PA
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0.1 101 100 1k 10k
100k
10k
1k
100
10
1
Voltage Noise (nV/
Hz)
Current Noise (fA/
Hz)
Frequency (Hz)
INPUT VOLTAGE AND CURRENT NOISE
SPECTRAL DENSITY vs FREQUENCY
Current Noise
Voltage Noise
Product
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OPA227
,
OPA2227
,
OPA4227
OPA228
,
OPA2228
,
OPA4228
SBOS110B MAY 1998REVISED JUNE 2015
OPAx22x High Precision, Low Noise Operational Amplifiers
1 Features 3 Description
The OPAx22x series operational amplifiers combine
1
Low Noise: 3nV/Hz
low noise and wide bandwidth with high precision to
Wide Bandwidth:
make them the ideal choice for applications requiring
OPA227: 8 MHz, 2.3 V/μs
both AC and precision DC performance.
OPA228: 33 MHz, 10 V/μs
The OPAx227 is unity-gain stable and features high
Settling Time: 5 μs
slew rate (2.3V/µs) and wide bandwidth (8MHz). The
OPAx228 is optimized for closed-loop gains of 5 or
(Significant Improvement Over OP-27)
greater, and offers higher speed with a slew rate of
High CMRR: 138 dB
10V/µs and a bandwidth of 33MHz.
High Open-loop Gain: 160 dB
The OPAx227 and OPAx228 series operational
Low Input Bias Current: 10 nA Maximum
amplifiers are ideal for professional audio equipment.
Low Offset Voltage: 75 µV Maximum
In addition, low quiescent current and low cost make
them ideal for portable applications requiring high
Wide Supply Range: ±2.5 V to ±18 V
precision.
OPA227 Replaces OP-27, LT1007, MAX427
The OPAx227 and OPAx228 series operational
OPA228 Replaces OP-37, LT1037, MAX437
amplifiers are pin-for-pin replacements for the
Single, Dual, and Quad Versions
industry standard OP-27 and OP-37 with substantial
improvements across the board. The dual and quad
2 Applications
versions are available for space savings and per
channel cost reduction.
Data Acquisition
Telecom Equipment
The OPAx227, OPAx228, are available in DIP-8 and
SO-8 packages. The OPA4227 and OPA4228 are
Geophysical Analysis
available in DIP-14 and SO-14 packages with
Vibration Analysis
standard pin configurations. Operation is specified
Spectral Analysis
from –40°C to 85°C.
Professional Audio Equipment
Device Information
(1)
Active Filters
PART NUMBER PACKAGE BODY SIZE (NOM)
Power Supply Controls
PDIP (8) 9.81 mm × 6.35 mm
OPA227
OPA228
Input Referred Noise
SOIC (8) 4.90 mm × 3.91 mm
PDIP (8) 9.81 mm × 6.35 mm
OPA2227
OPA2228
SOIC (8) 4.90 mm × 3.91 mm
PDIP (14) 19.30 mm × 6.35 mm
OPA4227
OPA4228
SOIC (14) 8.65 mm × 3.91 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.

OPA4228PA 数据手册

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OPA4228 数据手册

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