Automotive-Qualified CMOS Operational Amplifier With Low Noise and 5.5MHz GBW

Automotive-Qualified CMOS Operational Amplifier With Low Noise and 5.5MHz GBW - OPA4377-Q1


The OPAx377-Q1 family of operational amplifiers are wide-bandwidth CMOS amplifiers that provide very low noise, low input bias current, and low offset voltage while operating on a low quiescent current of 0.76 mA (typical).

The OPAx377-Q1 op amps are optimized for low-voltage, single-supply applications. The exceptional combination of ac and dc performance make them ideal for a wide range of applications, including small signal conditioning, audio, and active filters. In addition, these parts have a wide supply range with excellent PSRR, making them attractive for applications that run directly from batteries without regulation.

The OPA377-Q1 is available in the SOT23-5 package. The dual, OPA2377-Q1, is offered in the MSOP-8 package and the quad OPA4377-Q1 is offered in the TSSOP-14 package. All versions are specified for operation from –40°C to +125°C.


  • Qualified for Automotive Applications
  • AEC-Q100 Qualified with the Following Results:
    • Device Temperature Grade 1: –40°C to
      +125°C Ambient Operating Temperature
    • Device HBM ESD Classification Level 3A
    • Device CDM ESD Classification Level C6
  • Low Noise: 7.5 nV/√Hz at 1 kHz
  • 0.1-Hz to 10-Hz Noise: 0.8 µVPP
  • Quiescent Current: 760 µA (typical)
  • Low Offset Voltage: 250 µV (typical)
  • Gain Bandwidth Product: 5.5 MHz
  • Rail-to-Rail Input and Output
  • Single-Supply Operation
  • Supply Voltage: 2.2 V to 5.5 V
  • Space-Saving Packages:
    • SOT-23, VSSOP, TSSOP

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Parametrics Compare all products in General-Purpose Op Amps

Number of Channels (#)
Total Supply Voltage (Min) (+5V=5, +/-5V=10)
Total Supply Voltage (Max) (+5V=5, +/-5V=10)
GBW (Typ) (MHz)
Slew Rate (Typ) (V/us)
Vos (Offset Voltage @ 25C) (Max) (mV)
Iq per channel (Typ) (mA)
Vn at 1kHz (Typ) (nV/rtHz)
Operating Temperature Range (C)
Package Group
Package Size: mm2:W x L (PKG)
Offset Drift (Typ) (uV/C)
Input Bias Current (Max) (pA)
CMRR (Typ) (dB)
Output Current (Typ) (mA)
OPA4377-Q1 OPA377-Q1
4    1   
2.2    2.2   
5.5    5.5   
5.5    5.5   
2    2   
1    1   
0.76    0.76   
7.5    7.5   
Automotive    Automotive   
-40 to 125    -40 to 125   
TSSOP    SOT-23   
14TSSOP: 32 mm2: 6.4 x 5(TSSOP)    5SOT-23: 8 mm2: 2.8 x 2.9(SOT-23)   
0.32    0.32   
EMI Hardened    EMI Hardened   
10    10   
90    90   
30    30   

Other qualified versions of OPA4377-Q1

Version Part Number Definition
Catalog OPA4377 TI's standard catalog product