OPA4277-SP High-precision operational amplifier | TI.com

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High-precision operational amplifier



The OPA4277-SP precision operational amplifier replaces the industry standard LM124-SP. It offers improved noise and two orders of magnitude lower input offset voltage. Features include ultra-low offset voltage and drift, low-bias current, high common-mode rejection, and high-power supply rejection.

The OPA4277-SP operates from ±2- to ±18-V supplies with excellent performance. Unlike most operational amplifiers which are specified at only one supply voltage, the OPA4277-SP precision operational amplifier is specified for real-world applications; a single limit applies over the ±5- to ±15-V supply range. High performance is maintained as the amplifier swings to the specified limits.

The OPA4277-SP is easy to use and free from phase inversion and overload problems found in some operational amplifiers. It is stable in unity gain and provides excellent dynamic behavior over a wide range of load conditions. The OPA4277-SP features completely independent circuitry for lowest crosstalk and freedom from interaction, even when overdriven or overloaded.


  • QMLV Qualified: 5962-16209
    • Radiation Hardness Assurance (RHA) up to Total Ionizing Dose (TID) 50 krad(Si)
    • ELDRS-Free (See Radiation Report)
    • Single Event Latchup (SEL) Immune to LET = 85 MeV-cm2/mg
  • Ultra-Low Offset Voltage: 20 µV
  • Ultra-Low Drift: ±0.15 µV/°C
  • High Open-Loop Gain: 134 dB
  • High Common-Mode Rejection: 140 dB
  • High-Power Supply Rejection: 130 dB
  • Wide Supply Range: ±2 to ±18 V
  • Low-Quiescent Current: 800 µA/Amplifier
  • Available in 14-lead CFP With Industry Standard Quad Operational Amplifier Pinout

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Part number Order 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) Rail-to-rail Vos (offset voltage @ 25 C) (Max) (mV) Offset drift (Typ) (uV/C) Iq per channel (Typ) (mA) Vn at 1 kHz (Typ) (nV/rtHz) CMRR (Typ) (dB) Rating Operating temperature range (C) Package Group Package size: mm2:W x L (PKG) Input bias current (Max) (pA) Output current (Typ) (mA) Features Architecture
OPA4277-SP Order now 4     4     36     1     0.8     No     0.065     0.1     0.79     8     140     Space     -55 to 125
25 to 25    
CDIP SB | 28
CFP | 14    
28CDIP SB: 266 mm2: 7.49 x 35.56 (CDIP SB | 28)
14CFP: 81 mm2: 7.72 x 10.47 (CFP | 14)    
1000     35         Bipolar    
LMP2012QML-SP Samples not available 2     2.7     5     3     4     In to V-
0.036     0.015     0.93     35     130     Space     -55 to 125     CFP | 10     10CFP: 42 mm2: 6.121 x 6.858 (CFP | 10)     3     15     Zero Drift     CMOS