OP177BRC/883 - Ultraprecision Op Amp | Analog Devices
N.º de pieza: OP177BRC/883 ✗ Fin de vida| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $25 | $25,00 |
| 10 | $22.5 | $225,00 |
| 100 | $20 | $2.000,00 |
| 500 | $18 | $9.000,00 |
| 1.000 | $16 | $16.000,00 |
OP177BRC/883 Descripción general
An operational amplifier (op amp) is a high-gain voltage amplifier with differential inputs and a single-ended output. It is a fundamental building block in analog electronics, used in signal conditioning, filtering, and instrumentation. The OP177 belongs to the precision op amp category, which prioritizes low offset voltage, low drift, and high open-loop gain over speed. This makes it ideal for applications where accuracy is paramount, such as precision instrumentation and sensor signal conditioning.
Key features of the OP177BRC/883 include ultralow offset voltage (10 µV max for the B grade), outstanding offset voltage drift (0.1 µV/°C max), excellent open-loop gain and gain linearity, CMRR of 130 dB min, PSRR of 120 dB min, and low supply current of 2.0 mA max. These specifications ensure accurate performance in high closed-loop gain applications, making it a cost-effective alternative to chopper-stabilized amplifiers.
The OP177 uses a bipolar input stage with laser-trimmed thin-film resistors to achieve its precision. The device operates from dual supplies ranging from ±3 V to ±18 V, and its output can swing close to the supply rails. The low noise and high gain make it suitable for precision integrators, active filters, and bridge amplifiers.
Typical applications include precision instrumentation, thermocouple and RTD signal conditioning, strain gauge amplifiers, and high-resolution ADC drivers. The device's low offset and drift eliminate the need for external nulling in many circuits, simplifying design and improving long-term stability.
When designing with the OP177BRC/883, ensure proper decoupling of the power supply pins with 0.1 µF ceramic capacitors placed close to the device. The ceramic package provides good thermal performance, but for high-precision applications, maintain a stable ambient temperature to minimize drift.
Alternativas directas para OP177BRC/883 — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Variantes de esta serie
Modelos de la misma serie compatibles directamente con OP177BRC/883 (mismo factor de forma y huella) — difiere en Package.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
OP177BRC/883
✅ Sustitución directa✓ En stock
$16 / unidad
Ver hoja de datos →OP177BRC/883 Valores máximos y características eléctricas
| Input Offset Voltage (max) | 55 µV |
| Offset Voltage Drift (max) | 0.1 µV/°C |
| Common Mode Rejection Ratio (min) | 130 dB |
| Power Supply Rejection Ratio (min) | 120 dB |
| Supply Current (max) | 2.0 mA |
| Unity Gain Bandwidth (nominal) | 600 kHz |
| Slew Rate (min) | 0.1 V/µs |
| Open-Loop Gain (typ) | V/µV |
| Supply Voltage Range | ±3 V to ±18 V |
| Encapsulado | LCC-20 (CQCC20) |
| Rango de temperatura de funcionamiento | -55°C to +125°C |
| Estado RoHS | unknown |
| Military Grade | Yes (883 compliant) |
Configuración de pines de OP177BRC/883
| Pin 1 | NC — No connection |
| Pin 2 | -IN — Inverting input |
| Pin 3 | +IN — Non-inverting input |
| Pin 4 | V- — Negative supply |
| Pin 5 | NC — No connection |
| Pin 6 | NC — No connection |
| Pin 7 | V+ — Positive supply |
| Pin 8 | OUT — Output |
| Pin 9 | NC — No connection |
| Pin 10 | NC — No connection |
Aplicaciones típicas
OP177BRC/883 es adecuado para 6 aplicacións: Precision Instrumentation, Military and Aerospace, Medical Instrumentation, Industrial Process Control, Test and Measurement, Audio Signal Conditioning.
Precision Instrumentation
The OP177BRC/883's ultralow offset voltage (55 µV max) and drift (0.1 µV/°C) make it ideal for precision instrumentation amplifiers. In a typical bridge amplifier, the low offset ensures minimal error, while the high CMRR (130 dB) rejects common-mode noise. The device operates from ±15 V supplies, providing sufficient headroom for sensor outputs. Its low supply current (2.0 mA) is beneficial for portable instruments. The 600 kHz bandwidth is adequate for DC and low-frequency measurements, ensuring stable readings.
Recomendado
Military and Aerospace
The OP177BRC/883 is a military-grade (883 compliant) op amp in a hermetic ceramic LCC-20 package, operating from -55°C to +125°C. This makes it suitable for avionics, guidance systems, and radar signal conditioning. The high PSRR (120 dB) ensures stable operation in noisy power environments. The low drift over temperature maintains accuracy in extreme conditions. Its small footprint is advantageous for space-constrained military electronics.
Recomendado
Medical Instrumentation
In medical devices such as patient monitors and diagnostic equipment, the OP177BRC/883 provides the precision needed for accurate signal conditioning. Its low offset voltage and drift ensure reliable measurements over time and temperature. The low supply current is ideal for battery-powered portable devices. The high CMRR rejects interference from other medical equipment. The 600 kHz bandwidth is sufficient for biopotential signals like ECG and EEG.
Recomendado
Industrial Process Control
The OP177BRC/883 is well-suited for industrial process control, where precision and stability are critical. It can be used in 4-20 mA loop transmitters, PID controllers, and signal conditioning for pressure and temperature sensors. The low offset voltage minimizes calibration requirements, and the high PSRR ensures accurate operation in industrial power environments. The wide temperature range allows deployment in harsh factory conditions.
Recomendado
Test and Measurement
In test and measurement equipment, the OP177BRC/883 provides the accuracy required for calibration and signal analysis. Its low offset and drift ensure precise DC measurements, while the high open-loop gain maintains linearity in high-gain configurations. The device can be used in digital multimeters, precision voltage references, and bridge measurements. The 600 kHz bandwidth is adequate for audio-frequency test signals.
Recomendado
Audio Signal Conditioning
Although not a high-speed op amp, the OP177BRC/883 can be used in high-end audio equipment for precise DC servo control and signal conditioning. Its low noise and low distortion contribute to clean audio reproduction. The low offset voltage prevents DC offset in audio paths, and the high PSRR reduces power supply hum. The 600 kHz bandwidth is sufficient for audio frequencies up to 20 kHz.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para OP177BRC/883 — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | OP177GPZ | OP177FSZ | OP07CN8 |
|---|---|---|---|---|
| Package | LCC-20 | DIP-8 | SOIC-8 | DIP-8 |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Input Offset Voltage (max) | 55 µV | 25 µV | 25 µV | 75 µV |
| Offset Voltage Drift (max) | 0.1 µV/°C | 0.3 µV/°C | 0.3 µV/°C | 0.2 µV/°C |
| CMRR (min) | 130 dB | 130 dB | 130 dB | 110 dB |
| PSRR (min) | 120 dB | 120 dB | 120 dB | 110 dB |
| Supply Current (max) | 2.0 mA | 2.0 mA | 2.0 mA | 2.5 mA |
| Unity Gain Bandwidth | 600 kHz | 600 kHz | 600 kHz | 600 kHz |
Diferenciadores clave
- Ultralow offset voltage drift of 0.1 µV/°C (frente a OP07CN8)
- High CMRR of 130 dB (frente a OP07CN8)
- Military-grade 883 compliance (frente a OP177GPZ)
Notas de diseño
Use dual supplies of ±15 V for optimal performance. Decouple each supply pin with a 0.1 µF ceramic capacitor placed as close to the device as possible. For high-precision applications, consider using a low-noise linear regulator to power the op amp.
For the LCC-20 package, ensure proper soldering to the ceramic substrate. Use a thermal pad if available. Keep traces short to minimize parasitic capacitance. For high-impedance inputs, guard rings can reduce leakage currents.
Avoid exceeding the absolute maximum supply voltage of ±18 V. The OP177 is not a rail-to-rail output, so ensure the output swing is within the specified range. For high closed-loop gain, the low bandwidth may limit performance; verify stability with the chosen gain.
Información de cumplimiento
Military-grade ceramic package may be exempt from RoHS. Compliance data not provided in verified sources.
