OP2177ARZ-REEL7 - Dual Precision Low Noise Op Amp 1.3MHz | ADI
부품 번호: OP2177ARZ-REEL7 ✓ 활성| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $6.95 | $6.95 |
| 10 | $5.95 | $59.50 |
| 100 | $4.85 | $485.00 |
| 500 | $4.1 | $2,050.00 |
| 1,000 | $3.62 | $3,620.00 |
OP2177ARZ-REEL7 개요
An operational amplifier (op amp) is a high-gain, differential-input, single-ended-output voltage amplifier that serves as a fundamental building block in analog electronics. Op amps are categorized by parameter emphasis into general-purpose, precision, low-noise, high-speed, and low-power families. The OP2177 belongs to the precision low-noise family, which optimizes DC accuracy (Vos, Ib, drift) alongside low spectral noise density for high-resolution measurement systems where both linearity and signal-to-noise ratio matter.
Key features include an input offset voltage drift of 0.1 uV/degree C, a typical input bias current of 0.5 nA, and 500 uA quiescent current per amplifier. The bipolar input stage uses laser-trimmed thin-film resistors to achieve sub-100 uV offset without external nulling. Outputs are stable with capacitive loads exceeding 100 pF, which simplifies buffer and cable-driving designs by eliminating the need for isolation resistors.
The OP2177 architecture pairs a precision bipolar input pair with a class AB output stage, delivering 10 mA minimum output current while keeping supply current below 1 mA per channel. The result is an amplifier suitable for low-power instrumentation that must still drive moderate loads such as ADC reference ladders, audio line outputs, and active-filter capacitors.
Typical applications include precision data-acquisition front ends, thermocouple and RTD signal conditioning, precision active filters, and four-wire sensor current sensing. The 8-pin SOIC pinout is industry-standard, simplifying PCB retrofits into legacy OP-213 / OP-2177 sockets.
When designing with this device, place 0.1 uF decoupling capacitors within 5 mm of pins 4 and 8, and keep input traces short. For best noise performance, choose low-impedance feedback networks (under 10 kohm) and avoid high-impedance nodes exposed to EMI.
This page integrates distributor pricing, drop-in alternatives, and practical design notes beyond the manufacturer's datasheet to accelerate component selection and BOM optimization.
드롭인 대체품: OP2177ARZ-REEL7 — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 시리즈의 변형
다음과 드롭인 호환되는 동일 시리즈 모델: OP2177ARZ-REEL7 (동일 폼 팩터 및 풋프린트) — 차이점: Amplifier Type, Package, Slew Rate, Input Bias Current, Supply Voltage Range.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
OP2177ARZ
✅ 드롭인✓ 재고 있음
$0.86 / 개
데이터시트 보기 →OP4177ARZ
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
OP1177ARZ
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
AD8628ARZ
✅ 드롭인✓ 재고 있음
$1.49 / 개
데이터시트 보기 →ADA4522-2ARZ
✅ 드롭인✓ 재고 있음
$3.9 / 개
데이터시트 보기 →OPA2277UA
✅ 드롭인✓ 재고 있음
$2.95 / 개
데이터시트 보기 →AD8676ARZ
✅ 드롭인✓ 재고 있음
$2.25 / 개
데이터시트 보기 →OP2177ARZ-REEL7 최대 정격 & 전기적 특성
| Manufacturer | Analog Devices Inc. |
| Series | OPx177 |
| Amplifier Type | Precision, Low Noise |
| Number of Circuits | 2 |
| Slew Rate | 0.7 V/us |
| Gain Bandwidth Product | 1.3 MHz |
| Input Offset Voltage (typ) | 15 uV |
| Input Offset Voltage Drift | 0.1 uV/degree C |
| Input Bias Current (typ) | 0.5 nA |
| Voltage Noise Density | 7.9 nV/rt(Hz) at 1 kHz |
| Supply Current per Amplifier | 500 uA (typ) |
| Supply Voltage Range | +/-2.5 V to +/-15 V (dual) |
| Output Drive | 10 mA minimum |
| Capacitive Load Drive | >100 pF stable |
| 동작 온도 범위 | -40 degree C to +125 degree C |
| 패키지 | 8-pin SOIC (R-8) on 7-inch reel |
| 실장 유형 | Surface Mount |
| RoHS | Compliant |
OP2177ARZ-REEL7 핀 구성
| 핀 1 | OUT A — Output of channel A amplifier |
| 핀 2 | -IN A — Inverting input of channel A |
| 핀 3 | +IN A — Non-inverting input of channel A |
| 핀 4 | V- — Negative supply pin |
| 핀 5 | +IN B — Non-inverting input of channel B |
| 핀 6 | -IN B — Inverting input of channel B |
| 핀 7 | OUT B — Output of channel B amplifier |
| 핀 8 | V+ — Positive supply pin |
일반적인 애플리케이션
OP2177ARZ-REEL7 적합 용도: 7 애플리케이션s: Precision Sensor Signal Conditioning, Industrial Data Acquisition Front End, Medical Monitoring Equipment, Precision Active Filters (Sallen-Key, Multiple-Feedback), Four-Wire Precision Current Sensing, Audio Line Drivers and Headphone Buffers, Reference Buffering and Test Instrumentation.
Precision Sensor Signal Conditioning
Interface for thermocouples, RTDs, strain gauges, and bridge sensors at sub-microvolt noise floor with high DC accuracy for factory automation and laboratory instrumentation.
추천
Industrial Data Acquisition Front End
Multi-channel 16-24 bit SAR or sigma-delta ADC driver and active filter for process control, factory automation SCADA modules, and bench-top data loggers.
추천
Medical Monitoring Equipment
ECG, EEG, EMG, pulse-oximeter, and patient-monitoring front-end with low 7.9 nV/rt(Hz) noise for high signal-to-noise ratio in battery-powered portable devices.
추천
Precision Active Filters (Sallen-Key, Multiple-Feedback)
Low-noise Sallen-Key or Multiple-Feedback low-pass, high-pass, and band-pass filters up to ~200kHz with sub-microvolt noise floor for instrumentation-grade signal chains.
추천
Four-Wire Precision Current Sensing
High-side or low-side current shunt measurement with OP2177 differential amplifier up to 100x gain; suits motor drives, battery management, and precision bench supplies.
추천
Audio Line Drivers and Headphone Buffers
Low-distortion low-noise audio line-driver or impedance converter for professional audio, headphone amplifiers, and high-fidelity DAC outputs where 7.9 nV/rt(Hz) spectral noise floor preserves dynamic range.
추천
Reference Buffering and Test Instrumentation
Unity-gain buffer for ADR01/ADR02/ADR05 series 10V references or precision DAC output buffers in bench-top calibrators, DMMs, and lab-grade voltmeters.
추천
추천 제품 요약
엔지니어링 참조 데이터: OP2177ARZ-REEL7 — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | OP2177ARZ | OP4177ARZ | AD8628ARZ | ADA4522-2ARZ | OPA2277UA |
|---|---|---|---|---|---|---|
| Package | 8-SOIC (R-8) | 8-SOIC (tube) | 14-SOIC | 8-SOIC | 8-SOIC | 8-SOIC |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Texas Instruments |
| Number of Channels | 2 | 2 | 4 | 2 | 2 | 2 |
| Gain Bandwidth Product | 1.3 MHz | 1.3 MHz | 1.3 MHz | 2.5 MHz | 5.5 MHz | 1.0 MHz |
| Slew Rate | 0.7 V/us | 0.7 V/us | 0.7 V/us | 1.0 V/us | 3.0 V/us | 0.9 V/us |
| Input Offset Voltage (typ) | 15 uV | 15 uV | 15 uV | 5 uV | 5 uV | 20 uV |
| Voltage Noise Density (1 kHz) | 7.9 nV/rt(Hz) | 7.9 nV/rt(Hz) | 7.9 nV/rt(Hz) | 18 nV/rt(Hz) | 4.5 nV/rt(Hz) | 8.0 nV/rt(Hz) |
| Supply Current per Amplifier | 500 uA | 500 uA | 500 uA | 0.06 uA | 0.8 mA | 0.8 mA |
| Capacitive Load Drive | 100 pF stable | 100 pF stable | 100 pF stable | 20 nF drive | 200 pF stable | 1 nF drive |
| Approximate Unit Price (qty 1) | USD 6.95 | USD 6.50 | USD 8.95 | USD 5.20 | USD 4.65 | USD 4.95 |
주요 차별점
- Lower voltage noise density with mature laser-trim bipolar precision (vs AD8628ARZ)
- Higher gain-bandwidth at same noise floor (vs OPA2277UA)
- Single-supply alternative with chopper stability at same SOIC footprint (vs ADA4522-2ARZ)
설계 노트
Place 0.1 uF X5R/X7R ceramic decoupling capacitors within 5 mm of pins 4 (V-) and 8 (V+). Use a bulk 10 uF tantalum or aluminum-polymer capacitor at the supply input. Single-point star ground topology from the analog ground plane prevents digital switching currents from injecting into the OP2177 supply rail. Avoid sharing series resistance between V+ and V- decoupling paths.
Do not connect input pins directly to high-impedance nodes longer than 5 mm without ESD protection; the OP2177 inputs are bipolar with low 0.5 nA bias current but the same low bias makes them susceptible to PCB leakage. Add 100 kohm input resistors for protection against transients. Avoid exceeding +/-15 V on V+ or V-; voltage transients above absolute-maximum 18 V damage the part.
Route sensitive input traces over a continuous ground plane and keep them 5 mm minimum from supply and output traces to minimize crosstalk. Use guard rings around the inverting input for high-impedance nodes (above 100 kohm source impedance) to absorb leakage current from the PCB surface. Keep feedback network resistors close (<3 mm) to the inverting input to minimize stray capacitance.
Estimated: with 1 kohm feedback resistors and 1.3 MHz GBP, closed-loop gain of 10 yields a gain of 100 GBW available for error correction. Output noise integrated from 0.1 Hz to 10 Hz is approximately 0.5 uVpp, dominated by 7.9 nV/rt(Hz) spectral density. Keep total closed-loop gain below 1000 to avoid on-chip saturation at rail.
The 8-SOIC (R-8) package dissipates up to 600 mW with junction-to-ambient 160 C/W. Under typical operating conditions (<10 mA load, dual 15V supply), total power dissipation is 15 V * 1 mA per amp = 15 mW per channel; thermal rises are negligible. No heatsink required even at 125 degree C ambient. Maintain good PCB copper pour beneath the IC body and on power-supply pins for any elevated ambient.
규정 준수 정보
RoHS and REACH compliant per Analog Devices ordering information. Lead-free (matte tin finish); halogen-free per Analog Devices environmental policy. Not AEC-Q100 qualified (industrial-grade precision op amp).
