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Home > Products > Integrated Circuits (ICs) > Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps > OPA277PA
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OPA277PA

In Stock 5506 pcs Reference Price(In US Dollars)
1+
$2.416
Manufacturer Part Number:
OPA277PA
Manufacturer / Brand
Burr Brown
Part of Description:
OPA277 HIGH PRECISION OPERATIONA
Datasheets:
Lead Free Status / RoHS Status:
RoHS Compliant
Stock Condition:
New original, 5506 pcs Stock Available.
ECAD Model:
Ship From:
Hong Kong
Shipment Way:
DHL/Fedex/TNT/UPS

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Part Number OPA277PA
Manufacturer / Brand Burr Brown
Stock Quantity 5506 pcs Stock
Category Integrated Circuits (ICs) > Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps
Description OPA277 HIGH PRECISION OPERATIONA
Lead Free Status / RoHS Status: RoHS Compliant
Voltage - Supply Span (Min) 4 V
Voltage - Supply Span (Max) 36 V
Voltage - Input Offset 20 µV
Supplier Device Package 8-PDIP
Slew Rate 0.8V/µs
Series -
Package / Case 8-DIP (0.300", 7.62mm)
Package Bulk
Output Type -
Operating Temperature -40°C ~ 85°C
Number of Circuits 1
Mounting Type Through Hole
Gain Bandwidth Product 1 MHz
Current - Supply 790µA
Current - Output / Channel 35 mA
Current - Input Bias 500 pA
Amplifier Type General Purpose

Packaging & ESD

Industry-standard static shielding packaging is used for electronic components.Anti-static, light-transparent materials allow easy identification of ICs and PCB assemblies.
The packaging structure provides electrostatic protection based on Faraday cage principles.This helps protect sensitive components from static discharge during handling and transportation.


All products are packed in ESD-safe anti-static packaging. Outer packaging labels include part number, brand, and quantity for clear identification. Goods are inspected prior to shipment to ensure proper condition and authenticity.

ESD protection is maintained throughout packing, handling, and global transportation. Secure packaging provides reliable sealing and resistance during transit. Additional cushioning materials are applied when required to protect sensitive components.

QC(Part Testing by IC Components)Quality Warranty

We can offer worldwide express delivery service, such as DHLor FedEx or TNT or UPS or other forwarder for shipment.

Global Shipment by DHL/FedEx/TNT/UPS

Shipping Fees reference DHL/FedEx
1). You can offer your express delivery account for shipment, ifyou haven’t any express account for shipment, we can offer our account inadvance.
2). Use our account for shipment, Shipment charges(Reference DHL/FedEx, Different Countries has different price.)
Shipment charges： (Reference DHL and FedEX)
Weight(KG): 0.00kg-1.00kg Price(USD$) : USD$60.00
Weight(KG): 1.00kg-2.00kg Price(USD$) : USD$80.00
* The price of cost is reference with DHL/FedEx. The detail charges, please contact us. Different country the express charges are different.



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Beneficiary Bank Address : Tsuen Wan Market Street Branch 53 Market Street, Tsuen Wan N.T., Hong Kong

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Frequently Asked Questions

Can the OPA277PA be used in a single-supply 5V industrial sensor interface circuit without level shifting?
Yes, the OPA277PA supports single-supply operation down to 4V and has an input common-mode range that includes the negative rail, making it suitable for 5V single-supply designs such as 4–20mA current loop receivers or bridge amplifier circuits. However, ensure the output swing stays within the valid range—typically 1.5V above the negative rail and 1.5V below the positive rail under light loads—so signal headroom must be accounted for near supply rails.
What are the key risks when replacing a legacy OP07 in a precision DC measurement circuit with the OPA277PA?
While both are precision op amps, the OPA277PA offers significantly lower input offset voltage (20µV max vs. OP07’s 75µV) and lower drift, but its input bias current (500pA) is higher than the OP07’s (typically 1.5nA). In high-impedance sensor interfaces (e.g., pH probes or piezoelectric transducers), this increased bias current may introduce measurable error. Verify source impedance and consider adding bias-current compensation if needed.
Is the OPA277PA suitable for high-temperature automotive under-hood applications operating continuously at 105°C?
No. The OPA277PA is rated for an operating temperature range of –40°C to +85°C (commercial/industrial grade). Continuous operation at 105°C exceeds its specified limits and may lead to accelerated aging, parameter drift, or failure. For automotive under-hood use, consider automotive-grade alternatives like the OPA277PAQ or devices rated for AEC-Q100 Grade 1 (–40°C to +125°C).
How does the OPA277PA’s slew rate of 0.8 V/µs impact its usability in active filter designs for audio or vibration sensing?
The 0.8 V/µs slew rate limits the OPA277PA’s full-power bandwidth to approximately 12.7 kHz for a 10Vpp output signal, making it marginal for high-fidelity audio (>15 kHz) or wideband vibration analysis. While adequate for sub-10 kHz anti-aliasing or signal conditioning filters, it may cause slew-induced distortion in dynamic signals with fast edges. For higher-frequency applications, consider faster precision op amps like the OPA2188.
Can I substitute the OPA277PA for a dual-supply ±15V precision amplifier in a medical ECG front-end without redesigning the power rails?
Yes, the OPA277PA accepts dual supplies from ±2V to ±18V, so ±15V operation is well within spec. Its low offset voltage and low noise make it suitable for ECG signal conditioning. However, confirm that the existing circuit’s common-mode input range and output swing requirements align—the OPA277PA’s inputs include both rails, but outputs typically swing within ~1.5V of each rail, which must be factored into gain staging and ADC reference design.
What layout and decoupling practices are critical when using the OPA277PA in a high-accuracy 24-bit ADC driver circuit?
Use a solid ground plane, place 0.1µF ceramic decoupling capacitors as close as possible to the supply pins (pins 4 and 7), and minimize trace lengths to the inverting/non-inverting inputs to reduce parasitic capacitance and EMI pickup. Avoid routing digital or high-dV/dt signals near the feedback network. The OPA277PA’s low input bias current reduces sensitivity to PCB leakage, but clean, guarded layouts are still essential for µV-level accuracy.
Does the OPA277PA support rail-to-rail input or output operation, and what are the implications for low-voltage designs?
No, the OPA277PA does not feature rail-to-rail inputs or outputs. Its input common-mode range includes both supply rails, but the output typically swings within 1.5V of each rail under light loading. In low-voltage single-supply applications (e.g., 5V systems), this limits usable dynamic range. For rail-to-rail operation, consider alternatives like the OPA376, but note that such devices often trade off precision parameters like offset voltage and drift.
What is the expected long-term stability of the OPA277PA’s input offset voltage in a 10-year industrial process control application?
The OPA277PA exhibits excellent long-term stability due to its laser-trimmed thin-film resistors and stable bipolar process. Typical offset drift is <0.1µV/°C, and long-term drift is generally <5µV over 10 years at 25°C. However, in environments with thermal cycling or elevated temperatures, cumulative drift may increase. For critical applications, perform periodic calibration or select auto-zero amplifiers if sub-µV stability is required over decades.
Can the OPA277PA drive a 100nF capacitive load directly without stability issues?
Driving 100nF directly risks instability due to phase lag from the capacitive load interacting with the amplifier’s output impedance. The OPA277PA is not internally compensated for heavy capacitive loads. To ensure stability, add a small series resistor (10–100Ω) between the output and the capacitor to isolate the load, or use a feedforward capacitor across the feedback resistor to compensate phase margin.
Are there pin-compatible drop-in replacements for the OPA277PA in an 8-DIP package if sourcing becomes constrained?
The OPA277PA (8-PDIP) is largely pin-compatible with other precision op amps in the same package, such as the OP07DP and LT1001CN8, but performance characteristics differ significantly. The OP07DP has higher offset voltage and drift, while the LT1001CN8 offers similar precision but different noise and slew rate. Always validate electrical compatibility—especially input bias current, offset, and supply current—before substitution, as circuit behavior may change in precision applications.

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