The OPA2377 is a low cost, low noise, 5MHz CMOS operational amplifier

The OPA377 family of operational amplifiers are wide bandwidth CMOS amplifiers that provide very low noise, low input bias current, and low offset voltage while operating at a low quiescent current of 0.76mA (typ).

The OPA377 op amp is optimized for low-voltage, single-supply applications. The excellent combination of AC and DC performance makes it ideal for a variety of applications including small signal conditioning, audio and active AD5678BRUZ-1 filters. In addition, these devices have a wide supply range and excellent PSRR, which makes them attractive for applications powered directly from batteries without regulation.

OPA377 adopts SC70-5 product parameters, documentation and supply information" target="_blank">SC70-5, SOT23-5 product parameters, documentation and supply information" target="_blank">SOT23-5 and SO-8 packages . The dual-channel OPA2377 is available in SO-8 and MSOP-8 packages, and the quad-channel OPA377 is available in TSSOP-14 packages. All versions are specified for operation from –40°C to +125°C.


●Gain Bandwidth Product: 5.5MHz

Low noise: 7.5nV/√Hz at 1kHz

●Offset voltage: 1mV (max)

●Input bias current: 0.2pA

● Rail-to-rail output

●Unified gain stability

●EMI input filtering

● Quiescent current: 0.76mA/ch

●Supply voltage: 2.2V to 5.5V

Small package: SC70, SOT23 and MSOP


●Photodiode preamplifier

● Piezoelectric sensor preamplifier

●Sensor signal conditioning

●Audio equipment

●Active filter


Number of channels (#): 2

Total Supply Voltage (Max) (+5V=5, +/-5V=10): 5.5

Total Supply Voltage (Min) (+5V=5, +/-5V=10): 2.2

Vos (offset voltage @ 25 C) (max) (mV): 1

GBW (typ) (MHz): 5.5


Slew rate (Typ) (V/us): 2

Rail to Rail: In and Out

Offset Drift (Typ) (uV/C): 0.32

Iq (Typ) (mA) per channel: 0.76

Vn (typ) at 1 kHz (nV/rtHz): 7.5

CMRR (typ.) (dB): 90

Operating temperature range (°C): -40 to 125

Input Bias Current (Max) (pA): 10

Output current (Typ) (mA): 30

Architecture: CMOS

THD + N @ 1 kHz (Typ) (%): 0.00027