OP90GSZ-REEL7 - Micropower Precision Op Amp | Analog Devices
부품 번호: OP90GSZ-REEL7 ✓ 활성| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $4.96 | $4.96 |
| 10 | $4.45 | $44.50 |
| 100 | $3.98 | $398.00 |
| 500 | $3.55 | $1,775.00 |
| 1,000 | $3.2 | $3,200.00 |
OP90GSZ-REEL7 개요
An operational amplifier (op amp) is a high-gain voltage amplifier with differential inputs and a single-ended output, used in analog signal conditioning, filtering, and sensor interface circuits. It is a fundamental building block in analog electronics, forming the basis for comparators, buffers, integrators, and active filters. The OP90GSZ-REEL7 belongs to the category of precision op amps, which prioritize low offset voltage, low drift, and low noise over bandwidth, making them suitable for measurement and control systems where accuracy is paramount.
Key features include a low supply current of 20 µA maximum, which extends battery life in portable devices, and an output drive capability of 5 mA minimum, allowing it to drive moderate loads. The input bias current is 4 nA, and the input offset voltage is typically 150 µV, ensuring high DC accuracy. The amplifier is specified for operation over the industrial temperature range of -40°C to +85°C, and it is RoHS compliant.
The OP90GSZ-REEL7 uses a bipolar process technology that provides low noise and low offset, with a typical input voltage noise of 30 nV/√Hz. Its architecture includes a class AB output stage that can swing close to the rails, maximizing dynamic range in single-supply applications. The device is internally compensated for unity-gain stability, simplifying design.
Typical applications include battery monitoring, portable medical devices, sensor signal conditioning, and low-power data acquisition systems. Its ability to operate down to 1.6V makes it suitable for 2-cell alkaline or single-cell lithium-ion battery applications.
When designing with this amplifier, ensure that the common-mode input voltage does not exceed the specified range, and use appropriate decoupling capacitors on the supply pins to maintain stability. The low bandwidth means it is not suitable for high-frequency applications, but it excels in precision DC and low-frequency AC measurements.
드롭인 대체품: OP90GSZ-REEL7 — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
OP90GSZ-REEL
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
OP90GSZ
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
OP90GS-REEL
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
LM358DT
⚡ 동일 패키지 ⚠️ 사양 미검증✓ 재고 있음
$0.0509 / 개
데이터시트 보기 →OP90GSZ-REEL7 최대 정격 & 전기적 특성
| Amplifier Type | General Purpose |
| Number of Circuits | 1 |
| 패키지 / 케이스 | 8-SOIC (0.154, 3.90mm Width) |
| Slew Rate | 0.012 V/µs |
| Gain Bandwidth Product | 20 kHz |
| Supply Voltage - Single | 1.6V to 36V |
| Supply Voltage - Dual | ±0.8V to ±18V |
| 공급 전류 | 20 µA max |
| Output Current | 5 mA min |
| Input Bias Current | 4 nA |
| Input Offset Voltage | 150 µV typical |
| 입력 전압 범위 | Includes ground |
| 동작 온도 범위 | -40°C to +85°C |
| Packaging | Tape & Reel (TR) |
| RoHS 상태 | Compliant |
OP90GSZ-REEL7 핀 구성
| 핀 1 | OFFSET NULL — Offset null adjustment |
| 핀 2 | IN- — Inverting input |
| 핀 3 | IN+ — Non-inverting input |
| 핀 4 | V- — Negative supply or ground |
| 핀 5 | OFFSET NULL — Offset null adjustment |
| 핀 6 | OUT — Output |
| 핀 7 | V+ — Positive supply |
| 핀 8 | NC — No connection |
일반적인 애플리케이션
OP90GSZ-REEL7 적합 용도: 6 애플리케이션s: Battery-Powered Instrumentation, Portable Medical Devices, Sensor Signal Conditioning, Low-Power Data Acquisition, Industrial Process Control, Audio Signal Processing.
Battery-Powered Instrumentation
The OP90GSZ-REEL7's 20 µA supply current and 1.6V minimum supply voltage make it ideal for battery-powered instruments such as portable multimeters and data loggers. Its low power consumption extends battery life, while the rail-to-rail input and output capability allows accurate signal conditioning from sensors. The amplifier can operate directly from a single lithium-ion cell, simplifying power supply design. Its precision specifications ensure reliable measurements over the industrial temperature range.
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Portable Medical Devices
In portable medical devices like glucose monitors and pulse oximeters, the OP90GSZ-REEL7 provides low-power signal conditioning for biosensors. Its low input bias current of 4 nA minimizes errors when interfacing with high-impedance electrodes. The amplifier's ability to operate from a 1.6V supply is compatible with single-cell batteries used in wearable devices. Its small SOIC package and tape-and-reel packaging facilitate compact, automated assembly. The precision offset voltage ensures accurate readings in critical health monitoring applications.
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Sensor Signal Conditioning
The OP90GSZ-REEL7 is well-suited for conditioning signals from temperature, pressure, and strain sensors. Its low offset voltage and low bias current preserve sensor accuracy, while the wide supply range accommodates various system rails. The amplifier's input range includes ground, allowing direct interface with ground-referenced sensors. Its low power consumption is beneficial in remote sensor nodes powered by batteries or energy harvesting. The 20 kHz bandwidth is sufficient for most sensor signals, which are typically below 1 kHz.
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Low-Power Data Acquisition
In low-power data acquisition systems, the OP90GSZ-REEL7 serves as a buffer or gain stage before an ADC. Its low supply current reduces overall system power, crucial for battery-operated loggers. The amplifier's precision ensures accurate signal representation, and its output can drive the input of a sampling ADC directly. The wide supply range allows operation from 3.3V or 5V rails. The SOIC package is compatible with standard PCB layouts, and the tape-and-reel format supports high-volume manufacturing.
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Industrial Process Control
The OP90GSZ-REEL7 is used in industrial process control for conditioning signals from transmitters and actuators. Its wide supply range (up to 36V) allows direct operation from 24V industrial buses. The low offset and drift ensure accurate control loop performance. The amplifier's robustness over -40°C to +85°C makes it suitable for harsh environments. Its low power consumption reduces heat generation in control cabinets. The 8-SOIC package is easy to integrate into existing designs.
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Audio Signal Processing
Although the OP90GSZ-REEL7 has a limited bandwidth of 20 kHz, it can be used in low-power audio applications such as hearing aids and portable audio players. Its low supply current is critical for battery life in wearable audio devices. The amplifier's low noise and distortion contribute to clean audio reproduction. The rail-to-rail output maximizes dynamic range in single-supply designs. Its small package allows compact audio circuit designs.
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추천 제품 요약
엔지니어링 참조 데이터: OP90GSZ-REEL7 — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | OP90GSZ-REEL | OP90GSZ | OP90GS-REEL | OP90GP | LM358 |
|---|---|---|---|---|---|---|
| Package | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC | 8-DIP | 8-SOIC |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Texas Instruments |
| Supply Current (max) | 20 µA | 20 µA | 20 µA | 20 µA | 20 µA | 500 µA |
| Supply Voltage Range | 1.6V to 36V | 1.6V to 36V | 1.6V to 36V | 1.6V to 36V | 1.6V to 36V | 3V to 32V |
| Gain Bandwidth Product | 20 kHz | 20 kHz | 20 kHz | 20 kHz | 20 kHz | 1 MHz |
| Slew Rate | 0.012 V/µs | 0.012 V/µs | 0.012 V/µs | 0.012 V/µs | 0.012 V/µs | 0.5 V/µs |
| Input Offset Voltage | 150 µV | 150 µV | 150 µV | 150 µV | 150 µV | 2 mV |
| Input Bias Current | 4 nA | 4 nA | 4 nA | 4 nA | 4 nA | 250 nA |
주요 차별점
- Ultra-low supply current of 20 µA max (vs LM358)
- Wide supply voltage range down to 1.6V (vs LM358)
- Precision input offset voltage of 150 µV (vs LM358)
설계 노트
The OP90GSZ-REEL7 operates from 1.6V to 36V single supply. For battery-powered designs, ensure the supply voltage does not drop below 1.6V during discharge. Use a low-dropout regulator if needed to maintain voltage. Decouple the supply pins with 0.1µF ceramic capacitors close to the device to prevent instability.
For optimal performance, place the OP90GSZ-REEL7 on a PCB with a solid ground plane. Keep input traces short and shielded to minimize noise pickup. Use surface-mount components to reduce parasitic inductance. The SOIC package has a thermal pad; connect it to the ground plane for better heat dissipation, though power dissipation is low.
Do not exceed the absolute maximum supply voltage of 36V. The input common-mode range includes ground, but do not apply voltages beyond the supply rails. The output can swing close to the rails but not exactly to them; account for this in your design. Avoid using this amplifier for high-frequency signals due to its low bandwidth.
규정 준수 정보
RoHS compliant per distributor data. No AEC-Q100 qualification indicated for this part.
