OP07AZ/883 - Ultra-Low Offset Op Amp | Analog Devices | CDIP-8
MPN: OP07AZ/883 ✓ Hoạt độngOP07AZ/883 Tóm tắt
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 mathematical operations. The OP07 belongs to the family of precision op amps, which prioritize low offset voltage, low noise, and high stability over bandwidth. In the hierarchy of analog ICs, it sits under linear amplifiers, which are part of the broader category of analog signal processing components.
Key features of the OP07AZ/883 include a low input bias current of 2 nA (typical), a high open-loop gain of 400 V/mV (minimum), and a common-mode rejection ratio (CMRR) of 120 dB (typical). The device operates from dual supplies of ±3 V to ±18 V and is specified over the full military temperature range of -55°C to +125°C. The CDIP-8 package provides hermetic sealing, ensuring reliability in harsh environments.
Technically, the OP07 uses a bipolar process with laser-trimmed thin-film resistors to achieve its low offset voltage. The input stage is a super-beta transistor pair, which reduces input bias current while maintaining high gain. The output stage can drive loads as low as 2 kΩ, and the device is internally compensated for unity-gain stability. The /883 suffix indicates compliance with MIL-STD-883 test methods, including Group A, B, C, and D inspections.
Typical applications include precision voltage references, thermocouple amplifiers, strain-gauge signal conditioning, and active filters. The low offset and drift ensure accurate DC performance, while the wide supply range allows use in both 5V and ±15V systems. The military temperature rating makes it suitable for aerospace and defense electronics.
When designing with the OP07AZ/883, consider the input common-mode range, which extends from -12V to +13V with ±15V supplies. For best performance, use a guard ring around the input pins to minimize leakage currents, and bypass the supply pins with 0.1 µF ceramic capacitors.
Bộ thay thế dễ dàng lắp đặt cho OP07AZ/883 — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với OP07AZ/883 (cùng hình factor và footprint) — khác nhau ở Package, Mounting Type, Operating Temperature Range, RoHS Status.
OP07AZ/883B
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
OP07AZ
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
OP07CN8
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
OP07EP
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
OP07DP
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
OP07CP
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
OP07G
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
OP07D
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
OP07AZ/883 Tỷ lệ tối đa & tính chất điện
| Input Offset Voltage (max) | 60 µV |
| Input Offset Drift (typ) | 0.2 µV/°C |
| Input Bias Current (typ) | 2 nA |
| Input Offset Current (typ) | 0.5 nA |
| Open-Loop Gain (min) | 400 V/mV |
| Common-Mode Rejection Ratio (typ) | 120 dB |
| Power Supply Rejection Ratio (typ) | 110 dB |
| Supply Voltage Range | ±3 V to ±18 V |
| Quiescent Current (typ) | 2.5 mA |
| Slew Rate (typ) | 0.3 V/µs |
| Gain Bandwidth Product (typ) | 0.6 MHz |
| Output Voltage Swing (min) | ±12 V (RL=2kΩ, VS=±15V) |
| Khoảng nhiệt độ hoạt động | -55°C to +125°C |
| Hộp | CDIP-8 (Ceramic DIP) |
| Kiểu lắp đặt | Through-Hole |
| MIL-STD-883 | Compliant |
| Trạng thái RoHS | Non-compliant (hermetic package) |
Cấu hình chân OP07AZ/883
| Chân 1 | OFFSET NULL — Offset null adjustment |
| Chân 2 | IN- — Inverting input |
| Chân 3 | IN+ — Non-inverting input |
| Chân 4 | V- — Negative supply |
| Chân 5 | OFFSET NULL — Offset null adjustment |
| Chân 6 | OUT — Output |
| Chân 7 | V+ — Positive supply |
| Chân 8 | NC — No connection |
Ứng dụng tiêu biểu
OP07AZ/883 phù hợp cho 6 Áp dụngs: Precision Instrumentation Amplifiers, Data Acquisition Systems, Aerospace and Defense Electronics, Medical Instrumentation, Industrial Process Control, Test and Measurement Equipment.
Precision Instrumentation Amplifiers
The OP07AZ/883's ultra-low offset voltage (60 µV max) and drift (0.2 µV/°C) make it ideal for precision instrumentation amplifiers used in strain-gauge and thermocouple signal conditioning. Its high CMRR of 120 dB rejects common-mode noise, ensuring accurate measurement in industrial environments. The military temperature range allows deployment in extreme conditions, and the hermetic CDIP-8 package protects against moisture and contamination.
Được đề xuất
Data Acquisition Systems
In data acquisition systems, the OP07AZ/883 provides accurate signal conditioning before ADC conversion. Its low offset and drift ensure minimal DC error, while the high open-loop gain (400 V/mV) maintains linearity. The device can operate from ±15V supplies, matching typical ADC front-end requirements. Its low bias current (2 nA) minimizes loading on high-impedance sensors, preserving signal integrity.
Được đề xuất
Aerospace and Defense Electronics
The OP07AZ/883 is MIL-STD-883 qualified, making it suitable for aerospace and defense applications where reliability is critical. Its hermetic CDIP-8 package and -55°C to +125°C temperature range ensure operation in harsh environments. The low offset voltage is essential for precision guidance systems and sensor interfaces. The device's proven track record in military systems makes it a trusted choice.
Được đề xuất
Medical Instrumentation
In medical devices such as patient monitors and diagnostic equipment, the OP07AZ/883 ensures accurate biopotential amplification. Its low offset voltage (60 µV) and low noise are critical for ECG and EEG signal acquisition. The high CMRR rejects 50/60 Hz interference, improving signal quality. The wide supply range allows operation from battery or isolated supplies, and the military-grade reliability ensures patient safety.
Được đề xuất
Industrial Process Control
The OP07AZ/883 is used in industrial process control for precise analog signal processing in temperature, pressure, and flow transmitters. Its low drift ensures stable operation over temperature, reducing calibration frequency. The device's robustness against electrostatic discharge and its wide supply range make it suitable for 24V industrial loops. The hermetic package protects against corrosive atmospheres.
Được đề xuất
Test and Measurement Equipment
In bench multimeters, oscilloscopes, and precision calibrators, the OP07AZ/883 provides accurate DC amplification and buffering. Its low offset and drift are essential for maintaining measurement accuracy over time and temperature. The high open-loop gain ensures linearity in feedback circuits. The military-grade version offers extended temperature stability for field instruments.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho OP07AZ/883 — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | OP07AZ/883B | OP07AZ | OP07CN8 | OP07EP |
|---|---|---|---|---|---|
| Package | CDIP-8 | CDIP-8 | CDIP-8 | PDIP-8 | PDIP-8 |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Input Offset Voltage (max) | 60 µV | 60 µV | 60 µV | 75 µV | 75 µV |
| Temperature Range | -55°C to +125°C | -55°C to +125°C | -40°C to +105°C | 0°C to +70°C | -40°C to +85°C |
| MIL-STD-883 | Yes | Yes | No | No | No |
| Package Type | Hermetic Ceramic | Hermetic Ceramic | Hermetic Ceramic | Plastic | Plastic |
| Input Bias Current (typ) | 2 nA | 2 nA | 2 nA | 2 nA | 2 nA |
| Supply Voltage Range | ±3V to ±18V | ±3V to ±18V | ±3V to ±18V | ±3V to ±18V | ±3V to ±18V |
Bảo phân biệt quan trọng
- MIL-STD-883 qualification (vsOP07AZ)
- Hermetic ceramic package (vsOP07CN8)
- Extended temperature range (vsOP07EP)
Ghi chú thiết kế
For optimal performance, place a 0.1 µF ceramic capacitor close to each supply pin (V+ and V-) to decouple high-frequency noise. Use a ground plane to minimize noise pickup. For high-impedance inputs, add a guard ring around pins 2 and 3 to reduce leakage currents, especially in humid environments.
The OP07AZ/883 is specified for -55°C to +125°C. In high-temperature applications, ensure adequate airflow or heatsinking to keep the junction temperature within limits. The hermetic package has a thermal resistance of approximately 100°C/W (theta_JA), so power dissipation should be limited to avoid exceeding the maximum junction temperature.
Do not exceed the absolute maximum supply voltage of ±22V. The input common-mode range is limited to ±13V with ±15V supplies; exceeding this may cause phase reversal. For offset nulling, connect a 10 kΩ potentiometer between pins 1 and 5 with the wiper to V+. Ensure the potentiometer is of good quality to avoid introducing thermal drift.
Thông tin tuân thủ
The OP07AZ/883 is a military-grade hermetic package, which typically contains lead-based solder and is exempt from RoHS. MIL-STD-883 compliance is confirmed.
