OP177GSZ - Ultraprecision Op Amp | Analog Devices | 8-SOIC
Référence : OP177GSZ ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $3.42 | $3,42 |
| 10 | $3.08 | $30,80 |
| 100 | $2.74 | $274,00 |
| 500 | $2.47 | $1 235,00 |
| 1 000 | $2.19 | $2 190,00 |
OP177GSZ Présentation
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 signal processing, used in configurations like inverting, non-inverting, and differential amplifiers. Op amps are part of the broader category of linear integrated circuits, which also includes comparators and voltage regulators. The OP177GSZ is a general-purpose precision op amp, designed for applications requiring excellent DC accuracy.
Key features of the OP177GSZ include a maximum input offset voltage of 60 µV, a temperature drift of 0.3 µV/°C, and a low input bias current of 2.8 nA. It operates from a supply voltage range of ±3 V to ±18 V and offers a gain bandwidth product of 600 kHz. The device also features a high open-loop gain of 120 dB and a common-mode rejection ratio of 120 dB, ensuring accurate performance in demanding circuits.
The OP177GSZ uses a bipolar input stage, which provides low noise and low offset. Its architecture is optimized for precision DC applications, with a slew rate of 0.3 V/µs and a settling time of 2.8 µs to 0.01%. The device is fully specified over the industrial temperature range of -40°C to +85°C, making it suitable for a wide range of environments.
Typical applications include precision instrumentation, thermocouple amplifiers, strain gauge amplifiers, and active filters. Its low offset and drift make it ideal for bridge amplifiers and data acquisition systems where accuracy is critical. The OP177GSZ is also used in medical instrumentation and industrial process control.
When designing with the OP177GSZ, ensure proper decoupling of the power supply pins with 0.1 µF ceramic capacitors placed close to the device. The input common-mode voltage range should be respected to avoid output phase reversal. For best performance, use precision resistors in the feedback network to maintain overall accuracy.
Alternatives de remplacement direct pour OP177GSZ — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec OP177GSZ (même facteur de forme et même empreinte) — différant par Amplifier Type, Gain Bandwidth Product, Slew Rate, Input Bias Current, Input Offset Voltage.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
OP2177ARZ
✅ Remplacement direct ⚠️ Spécifications non vérifiées✓ En stock
$0.86 / unité
Voir la fiche technique →OP07CSZ
✅ Remplacement direct ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
AD8628ARZ
✅ Remplacement direct ⚠️ Spécifications non vérifiées✓ En stock
$1.49 / unité
Voir la fiche technique →OPA2277UA
✅ Remplacement direct ⚠️ Spécifications non vérifiées✓ En stock
$2.95 / unité
Voir la fiche technique →OP177GSZ Valeurs maximales et caractéristiques électriques
| Amplifier Type | General Purpose |
| Number of Circuits | 1 |
| Type de sortie | Single-ended |
| Slew Rate | 0.3 V/µs |
| Gain Bandwidth Product | 600 kHz |
| Input Offset Voltage | 60 µV (max) |
| Input Bias Current | 2.8 nA (max) |
| Supply Voltage Range | ±3 V to ±18 V |
| Open-Loop Gain | 120 dB |
| Common-Mode Rejection Ratio | 120 dB |
| Power Supply Rejection Ratio | 120 dB |
| Plage de température de fonctionnement | -40°C to +85°C |
| Boîtier | 8-SOIC |
| Type de montage | Surface Mount |
| Statut RoHS | Compliant |
Configuration des broches de OP177GSZ
| Broche 1 | OFFSET NULL — Offset null adjustment |
| Broche 2 | IN- — Inverting input |
| Broche 3 | IN+ — Non-inverting input |
| Broche 4 | V- — Negative supply |
| Broche 5 | OFFSET NULL — Offset null adjustment |
| Broche 6 | OUT — Output |
| Broche 7 | V+ — Positive supply |
| Broche 8 | NC — No connection |
Applications typiques
OP177GSZ convient pour 6 applications: Precision Instrumentation, Thermocouple Amplifier, Strain Gauge Amplifier, Active Filters, Medical Instrumentation, Industrial Process Control.
Precision Instrumentation
The OP177GSZ's low offset voltage (60 µV max) and low drift (0.3 µV/°C) make it ideal for precision instrumentation amplifiers. In a typical bridge amplifier configuration, the OP177GSZ amplifies small differential signals from strain gauges or thermocouples with high accuracy. Its high CMRR of 120 dB rejects common-mode noise, ensuring clean signal acquisition. The device operates from ±3 V to ±18 V, allowing use in both battery-powered and industrial systems. For best performance, use precision resistors in the feedback network to maintain overall accuracy.
Recommandé
Thermocouple Amplifier
The OP177GSZ is well-suited for thermocouple signal conditioning due to its low input bias current (2.8 nA) and low offset voltage. In a cold-junction compensated thermocouple circuit, the OP177GSZ amplifies the small thermoelectric voltage (typically tens of microvolts per degree) with minimal error. Its low drift ensures stable readings over temperature. The device's wide supply range accommodates both 5V and ±15V systems. For cold-junction compensation, use a precision temperature sensor like the AD7314. The OP177GSZ's low noise (not specified but typical for bipolar) helps maintain signal integrity.
Recommandé
Strain Gauge Amplifier
In strain gauge applications, the OP177GSZ provides the precision needed to measure tiny resistance changes. Its low offset voltage and drift minimize errors in the bridge output. The high open-loop gain of 120 dB ensures linear amplification. The OP177GSZ can be used in a differential amplifier configuration with four active gauges. Its common-mode rejection of 120 dB rejects noise from the excitation supply. For a complete solution, pair with a precision ADC like the AD7793. The device's bipolar input stage offers low noise, essential for high-resolution measurements.
Recommandé
Active Filters
The OP177GSZ's gain bandwidth product of 600 kHz makes it suitable for low-frequency active filters, such as low-pass filters in data acquisition systems. Its low offset and drift ensure accurate DC performance in the passband. In a Sallen-Key topology, the OP177GSZ provides stable gain and low distortion. The device's high open-loop gain maintains filter accuracy. For higher-order filters, multiple OP177GSZ stages can be cascaded. The 8-SOIC package allows compact PCB layouts. Use precision resistors and capacitors to achieve the desired cutoff frequency and Q factor.
Recommandé
Medical Instrumentation
The OP177GSZ is used in medical devices such as ECG and EEG amplifiers, where precision and low noise are critical. Its low offset voltage and drift ensure accurate biopotential measurements. The device's high CMRR rejects 50/60 Hz interference. The OP177GSZ operates from low supply voltages, making it suitable for battery-powered portable monitors. Its small 8-SOIC package is ideal for space-constrained designs. For safety, ensure proper isolation and use medical-grade power supplies. The OP177GSZ's reliability and long-term stability make it a trusted choice in medical electronics.
Recommandé
Industrial Process Control
In industrial process control, the OP177GSZ provides accurate signal conditioning for sensors like pressure transmitters and flow meters. Its wide supply range (±3 V to ±18 V) allows integration into 24V industrial systems. The low offset and drift ensure precise control loop feedback. The device's high open-loop gain and CMRR reject noise from motors and power lines. The OP177GSZ can be used in PID controllers and data acquisition modules. For harsh environments, the industrial temperature range (-40°C to +85°C) ensures reliable operation. Pair with a precision ADC like the AD7793 for digital processing.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour OP177GSZ — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | OP177GPZ | OP2177ARZ | OP07CSZ | AD8628ARZ | OPA2277UA |
|---|---|---|---|---|---|---|
| Package | 8-SOIC | 8-DIP | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Texas Instruments |
| Number of Circuits | 1 | 1 | 2 | 1 | 1 | 2 |
| Input Offset Voltage (max) | 60 µV | 60 µV | 50 µV | 150 µV | 5 µV | 50 µV |
| Gain Bandwidth Product | 600 kHz | 600 kHz | 800 kHz | 600 kHz | 2.5 MHz | 800 kHz |
| Supply Voltage Range | ±3 V to ±18 V | ±3 V to ±18 V | ±2.5 V to ±18 V | ±3 V to ±18 V | 2.7 V to 5 V (single) | ±2 V to ±18 V |
| Input Bias Current (max) | 2.8 nA | 2.8 nA | 2 nA | 7 nA | 30 pA | 1 nA |
| CMRR (min) | 120 dB | 120 dB | 120 dB | 110 dB | 130 dB | 120 dB |
Principaux différenciateurs
- Ultraprecision performance at low cost (vs OP07CSZ)
- Pin-compatible with OP07 (vs OP07CSZ)
- Lower noise than chopper amplifiers (vs AD8628ARZ)
Notes de conception
Decouple the power supply pins with 0.1 µF ceramic capacitors placed as close as possible to the V+ and V- pins. For noisy environments, add a 10 µF tantalum capacitor in parallel. Ensure the supply voltage does not exceed the absolute maximum rating of ±18 V to prevent damage.
For best performance, use a ground plane and keep the input traces short and shielded. Avoid routing high-frequency digital signals near the input pins. Use precision resistors with low temperature coefficient in the feedback network to maintain accuracy.
Do not exceed the input common-mode voltage range, which is typically from V- to V+ minus 2 V. Exceeding this range can cause output phase reversal. Also, ensure the load capacitance is not too high, as it may cause instability. Use a small series resistor if driving capacitive loads.
Informations de conformité
RoHS compliant per Analog Devices product page. Not AEC-Q100 qualified.
