NE5532APSR - Dual Low-Noise Op Amp | Texas Instruments
料号： NE5532APSR ✓ 量产中NE5532APSR 概述
An operational amplifier is an analog building block that amplifies the voltage difference between its inverting and non-inverting inputs. Its wider hierarchy includes voltage amplifiers, analog amplifiers, amplifiers, and semiconductor-based signal-conditioning ICs. The dual configuration provides two independent amplifiers in one package, reducing board area in audio preamplifiers, active filters, mixers, measurement equipment, and low-level sensor interfaces. Internally compensated devices are intended for stable unity-gain operation and commonly use negative feedback to set higher closed-loop gains.
The NE5532 family combines low-noise operation with high output-drive capability and high unity-gain and maximum-output-swing bandwidths. According to the Texas Instruments NE5532x, SA5532x datasheet, the device also includes input-protection diodes and output short-circuit protection. Its 1 µA typical input bias current supports high-impedance signal sources, while 100 V/mV typical high dc voltage gain is useful for precision signal conditioning. The amplifier is designed for dual supplies, although its specified operating range includes lower total supply voltages than traditional ±15 V designs.
The NE5532APSR is compensated for unity-gain operation and can be configured as a non-inverting or inverting amplifier with external feedback components. Noise performance is particularly important when the input signal is below the amplifier's own noise floor, while slew rate and bandwidth determine how accurately large or fast signals are reproduced. The 9 V/µs typical slew rate provides ample margin for many audio and instrumentation signals, but stability, output loading, and feedback-loop design remain critical at high frequencies and capacitive loads.
Typical uses include stereo audio preamplifier stages, active low-pass and high-pass filters, audio mixers, low-level sensor amplifiers, oscilloscope input circuits, and laboratory instrumentation. The 8-pin SOIC package supports compact surface-mount layouts, while the dual amplifier organization reduces component count in stereo and dual-channel signal paths. In these applications, low equivalent input noise helps preserve low-level information, and output short-circuit protection improves robustness during overload or accidental output short conditions.
Designers should verify input and output common-mode limits, output-current capability, load impedance, and supply headroom at the lowest expected input voltage. Place input, feedback, and output-loop connections to minimize parasitic capacitance and maintain clean grounding. Decoupling capacitors should be positioned close to the supply pins. When substituting a device, check DC offset, input bias current, output swing, bandwidth, slew rate, noise, and compensation stability rather than relying on package shape alone.
This product page combines manufacturer specifications, package details, application guidance, alternative analysis, and practical circuit-design notes to support faster component evaluation. It is intended to help engineers compare the NE5532APSR against candidate dual low-noise amplifiers while preserving the integrity of an existing 8-pin SOIC layout.
直接替换替代料： NE5532APSR ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： NE5532APSR （相同外形与封装尺寸） ——差异在于 Input Bias Current, Slew Rate, Amplifier Type, Mounting Type, Operating Temperature Range.
OPA2604
✅ 直接替换📋 参考替代料（不在目录中）
OPA2134UA/2K5
✅ 直接替换联系询价
查看数据手册 →TL072CP
✅ 直接替换联系询价
查看数据手册 →LM4562
✅ 直接替换📋 参考替代料（不在目录中）
AD826
✅ 直接替换📋 参考替代料（不在目录中）
NE5532APSR 最大额定值与电气特性
| Number of Amplifiers | 2 circuits |
| Supply Voltage Range | ±5 V to ±15 V |
| Equivalent Input Noise Voltage | 5 nV/√Hz typical at 1 kHz |
| Unity-Gain Bandwidth | 10 MHz typical |
| Common-Mode Rejection Ratio | 100 dB typical |
| Slew Rate | 9 V/µs typical |
| Input Bias Current | 1 µA typical |
| High DC Voltage Gain | 100 V/mV typical |
| 工作温度范围 | 0°C to 70°C |
| Package Type | 8-pin SOIC |
| 引脚数 | 8 pins |
| Compensation | Internally compensated for unity-gain operation |
| Output Short-Circuit Protection | Included |
| Input Protection Diodes | Included |
| Output Drive Capability | High |
| Maximum-Output-Swing Bandwidth | High |
NE5532APSR 引脚配置
| 引脚 1 | OUTA — Amplifier A output |
| 引脚 2 | -INA — Inverting input for amplifier A |
| 引脚 3 | +INA — Non-inverting input for amplifier A |
| 引脚 4 | V- — Negative supply connection |
| 引脚 5 | +INB — Non-inverting input for amplifier B |
| 引脚 6 | -INB — Inverting input for amplifier B |
| 引脚 7 | OUTB — Amplifier B output |
| 引脚 8 | V+ — Positive supply connection |
典型应用
NE5532APSR 适用于 6 应用s: Stereo Audio Preamplifier, Active Audio Filters, Low-Level Sensor Signal Conditioning, Oscilloscope and Instrumentation Input, Audio Mixing and Distribution, Industrial Control Signal Conditioning.
Stereo Audio Preamplifier
NE5532APSR is well suited to stereo audio preamplification because it provides two low-noise amplifiers with 5 nV/√Hz typical equivalent input noise at 1 kHz. Its 9 V/µs typical slew rate and high output-drive capability support accurate reproduction of low-level music signals without placing excessive demands on the source. Both amplifiers are internally compensated for unity-gain operation and include output short-circuit protection. In a typical line stage, the device can sit after source selection and volume control, but the actual input common-mode voltage and output swing must remain within limits for the selected ±5 V to ±15 V supply.
推荐
Active Audio Filters
NE5532APSR can implement active low-pass, high-pass, or band-pass filters for audio and instrumentation channels. Its 10 MHz typical unity-gain bandwidth provides useful margin above the audio band, while 5 nV/√Hz typical input noise helps preserve low-level signals. The dual package supports stereo filtering with matched circuit topology. Component tolerances, feedback-network noise, and loaded Q determine actual response. Because the amplifier is internally compensated for unity gain, feedback configurations must remain within its stability limits, particularly near gain-of-one or with unexpected capacitive loading.
推荐
Low-Level Sensor Signal Conditioning
NE5532APSR is appropriate for low-level sensor conditioning when the source requires low input noise and the circuit can operate from ±5 V to ±15 V supplies. The specified 1 µA typical input bias current helps reduce DC errors from high-impedance sensors, while 100 dB typical common-mode rejection improves rejection of common-mode interference. Two channels can condition related sensor signals within one package. Designers should add input protection appropriate to the sensor, verify common-mode limits, and avoid excessive source impedance that can increase noise or reduce stability margin.
推荐
Oscilloscope and Instrumentation Input
NE5532APSR can serve as a buffered input stage in oscilloscope accessories, signal conditioners, and laboratory instruments. Its 5 nV/√Hz typical noise is useful when amplifying weak source signals, while its 10 MHz typical unity-gain bandwidth supports moderate-bandwidth measurements. The dual organization can process trigger and measurement channels in a compact implementation. Input attenuators, coupling capacitors, and protection networks must be designed separately, and output loading must be checked to preserve the expected bandwidth, slew rate, and distortion performance.
推荐
Audio Mixing and Distribution
NE5532APSR is useful in small audio mixers and distribution boards where low-level signals must be combined before power amplification. Two amplifiers per package reduce board area, while 5 nV/√Hz typical noise limits the amplifier's contribution in low-level paths. Its 9 V/µs typical slew rate supports many audio waveforms, and output short-circuit protection adds robustness when a downstream connector or line is faulted. Feedback resistors should be selected for the required channel gain, and the summing node should be checked for stability and adequate bandwidth.
推荐
Industrial Control Signal Conditioning
NE5532APSR can condition low-level control and measurement signals in industrial systems operating from ±5 V to ±15 V. Its 100 dB typical common-mode rejection is useful when the input includes coupled interference, and the dual-channel format supports complementary or differential signal conditioning. The 0°C to 70°C commercial temperature specification must match the enclosure's ambient range. Additional protection, isolation, or filtering may be needed for long cable runs, switching-node proximity, or sensors located outside the controlled equipment enclosure.
推荐
推荐产品汇总
工程参考数据： NE5532APSR ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | OPA2604 | OPA2134 | TL072 | LM4562 | AD826 |
|---|---|---|---|---|---|---|
| Package | 8-pin SOIC | 8-pin SOIC | 8-pin SOIC | 8-pin SOIC | 8-pin SOIC | 8-pin SOIC |
| Brand | Texas Instruments | Texas Instruments | Analog Devices | Texas Instruments | Texas Instruments | Analog Devices |
关键差异点
- Combines two low-noise amplifiers with a familiar 8-pin SOIC implementation （对比 OPA2134)
- Provides defined commercial-temperature operation for instrument and control products （对比 AD826)
- Offers integrated protection features for practical low-level signal paths （对比 TL072)
设计说明
Place the device so that the sensitive input and feedback traces remain short and are surrounded by a stable ground reference. Connect the bypass capacitor directly between pins 8 and 4 at the device, with its ground terminal returning to the quiet ground plane. Keep the inputs on the opposite side of the package from outputs where practical to reduce capacitive feedback and improve stability.
Operate the amplifier within its specified ±5 V to ±15 V supply range and verify that signal peaks do not force the outputs beyond the available output swing. The 9 V/µs typical slew rate helps reproduce fast waveforms, but the actual large-signal behavior depends on output voltage, load, and supply. Confirm output-current demand and leave sufficient headroom on both rails to avoid clipping or unstable operation.
Do not substitute an amplifier solely because it fits an 8-pin SOIC footprint. Check the complete pin map, unity-gain compensation, input common-mode range, output swing, input bias current, offset voltage, noise, bandwidth, slew rate, and stability with the intended feedback network. A candidate that changes these limits can alter DC accuracy, distortion, or oscillation behavior even when the board outline remains unchanged.
合规信息
Compliance attributes are not stated in the available product information. Use the current manufacturer product page or material declaration for procurement qualification.