OPA4277中文资料德州仪器数据手册PDF规格书

1 Features

• QMLV qualified: 5962-16209

– Radiation hardness assurance (RHA) up to

total ionizing dose (TID) 50krad(Si)

– ELDRS-Free (See Radiation Report)

– Single event latchup (SEL) Immune to LET =

85MeV-cm2/mg

• Ultra-low offset voltage: 20μV (typical)

• Ultra-low drift: ±0.15μV/°C (typical)

• High open-loop gain: 134dB (typical)

• High common-mode rejection: 140dB (typical)

• High power-supply rejection: 130dB (typical)

• Wide supply range: ±2V to ±18V

• Low quiescent current: 790μA/amplifier (typical)

• Available in 14-lead CFP with industry-standard,

quad-op-amp pinout

2 Applications

• Satellite electrical power system

• Command and data handling

• Optical imaging payload

• Lab and field instrumentation

• Space satellite temperature and position sensing

• Space precision and scientific applications:

– Transducer amplifier

– Bridge amplifier

– Strain gauge amplifier

– Precision integrator

3 Description

The OPA4277-SP precision operational amplifier

replaces the industry standard LM124-SP. The

OPA4277‑SP 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 ±2V to ±18V

supplies with excellent performance. Unlike most

operational amplifiers that 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 ±5V to

±15V 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. The device 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.