OPA375, OPA2375
SBOS886E – NOVEMBER 2017 – REVISED AUGUST 2021
OPA375, OPA2375, OPA4375 500-µV (Maximum), 10-MHz, Low Broadband Noise,
RRO, Operational Amplifier
1 Features
3 Description
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Low broadband noise: 3.5 nV/√Hz
Low offset voltage: 500 µV (maximum)
Low THD+N: 0.00015%
Gain bandwidth: 10 MHz
Rail-to-rail output
Unity-gain stable
Low IQ:
– OPA375: 890 µA/ch
– OPA2375/OPA4375: 990 µA/ch
Wide supply range:
The OPAx375 family includes single (OPA375), dual
(OPA2375) and quad-channel (OPA2375) general-
purpose CMOS operation amplifiers (op amp) that
provide an extremely low noise figure of 3.5 nV/√Hz, a
low offset of 500 µV (maximum) and a wide bandwidth
of 10 MHz. The low noise and wide bandwidth make
the OPAx375 family attractive for a variety of precision
applications that require a good balance between
cost and performance. Additionally, the input bias
current of the OPAx375 supports applications with
high source impedance.
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– OPA375: 2.25 V to 5.5 V
– OPA2375/OPA4375: 1.7 V to 5.5 V
Low offset voltage drift: ±0.16 µV/°C
The robust design of the OPAx375 family provides
ease-of-use to the circuit designer due to the unity-
gain stability, integrated RFI/EMI rejection filter, no
phase reversal in overdrive conditions, and high
electrostatic discharge (ESD) protection (2-kV HBM).
Additionally, the resistive open-loop output impedance
allows for easy stabilization with much higher
capacitive loads.
2 Applications
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Photodiode amplifiers
Precision sensor front-ends
ADC input-driver amplifiers
Test and measurement equipment
Sensor field transmitters
Wearable consumer applications
Audio equipment
This op amp is optimized for low-voltage operation
as low as 2.25 V (±1.125 V) for the OPA375 and
1.7 V (±0.85 V) for the OPA2375 and OPA4375. All
of the devices operate up to 5.5 V (±2.75 V), and
are specified over the temperature range of –40°C to
125°C.
Medical instrumentation
Active filters
100
70
The single-channel OPA375 is available in a small-
size SC70-5 package. The dual-channel OPA2375 is
available in multiple package options including a tiny
1.5 mm × 2.0 mm X2QFN package.
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30
20
Device Information
10
7
PART NUMBER(1)
PACKAGE
BODY SIZE (NOM)
1.25 mm × 2.00 mm
3.91 mm × 4.90 mm
3.00 mm × 4.40 mm
3.00 mm × 3.00 mm
1.60 mm × 2.90 mm
2.00 mm × 2.00 mm
1.50 mm × 2.00 mm
OPA375
SC70 (5)
5
SOIC (8)
3
2
TSSOP (8)
VSSOP (8)
SOT-23 (8)
WSON (8)
X2QFN (10)
OPA2375
1
10
100
1k
Frequency (Hz)
10k
100k
D012
Noise Spectral Density vs Frequency
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
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.