LM2902MTX/NOPB - Quad 26V 1MHz Op Amp | Texas Instruments
MPN: LM2902MTX/NOPB ✓ نشطLM2902MTX/NOPB نظرة عامة
An operational amplifier is an analog signal-conditioning semiconductor that compares two input voltages and amplifies their difference. The LM2902 belongs to the broader hierarchy of operational amplifier, analog amplifier, analog signal-processing IC, and semiconductor. Its four independent channels make it suitable for circuits requiring several similar amplifier stages in one compact package, while internal frequency compensation simplifies closed-loop design without external frequency-compensation components.
The LM2902MTX/NOPB combines four general-purpose amplifier channels with a 26 V maximum supply rating and gain-bandwidth performance of approximately 1 MHz. Each channel has its own inputs and output, allowing simultaneous use in independent signal paths. The low-power design is intended for general-purpose analog systems where a modest bandwidth is sufficient. Tape-and-reel packaging supports volume manufacturing and automated placement in compact industrial, instrumentation, and control equipment.
Internal frequency compensation establishes the dominant-pole behavior of each amplifier and permits stable operation in common non-inverting and inverting configurations without additional compensation networks. The manufacturer describes the LM2902-N family as four independent, high-gain, internally frequency-compensated operational amplifiers designed for operation from a single power supply over a wide voltage range. This architecture favors straightforward implementation over the flexibility offered by externally compensated amplifiers.
Typical uses include low-frequency sensor conditioning, transducer amplification, analog summing and comparison stages, active filtering, instrumentation buffers, and industrial control interfaces. Four integrated channels can reduce the component count in designs that require multiple amplifier functions. When one channel is used for a critical precision path, the other channels must still meet the same supply and stability constraints, making common-layout and simultaneous-signal behavior important design considerations.
A key design consideration is power-supply range. Although the device supports supplies up to 26 V, input and output voltage limits must be respected during startup, shutdown, and transient conditions. Decoupling capacitors should be placed close to the supply pins, while input sources should avoid excessive capacitance unless its effect on stability is evaluated. The 14-pin TSSOP footprint also requires attention to thermal dissipation and copper routing during assembly.
This page combines the exact orderable MPN, package and channel information with practical application guidance, engineering design notes, and a same-footprint comparison. It is intended to help engineers identify the correct quad amplifier, assess replacement options, and plan a robust single-supply analog circuit without relying on assumptions about package or pin compatibility.
بدائل مباشرة لـ LM2902MTX/NOPB — نفس الحزمة، متوافق دبوس بدبوس. تُستثنى القطع ذات الحزم المختلفة التي تتطلب تعديل PCB.
الطرازات في هذه السلسلة
طرازات من نفس السلسلة متوافقة تمامًا مع LM2902MTX/NOPB (نفس عامل الشكل والبصمة) — يختلف في Amplifier Type, Gain-Bandwidth Product, Package, Packaging, Supply Configuration.
LM2902PWRG3
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←LM2902DTBG
✅ بديل مباشر📋 بديل مرجعي (غير موجود في الكتالوج)
LM2902MTX/NOPB الحدود القصوى والخصائص الكهربائية
| Product Type | Quad general-purpose operational amplifier |
| Number of Amplifier Circuits | 4 circuits |
| Channel Architecture | 4 independent operational amplifiers |
| Maximum Supply Voltage | 26 V |
| Supply Configuration | Single supply |
| Gain-Bandwidth Product | 1 MHz |
| Frequency Compensation | Internally frequency compensated |
| Amplifier Type | General purpose |
| Power Class | Low power |
| العلبة | 14-TSSOP (PW) |
| Package Pin Count | 14 pins |
| Package Width | 0.173 inch (4.40 mm) |
| Packaging | Tape and reel |
| نوع التركيب | Surface mount |
دليل تكوين أطراف LM2902MTX/NOPB 0.173 inch (4.40 mm)
تكوين الأطراف لـ LM2902MTX/NOPB (حزمة 0.173 inch (4.40 mm)). يتميز هذا المكوّن التناظري بأطراف الإدخال والإخراج وإمداد الطاقة. راجع ورقة بيانات الشركة المصنعة لتكوينات طرف إلغاء الإزاحة والتعويض والتمكين. مثالي لدوائر تكييف الإشارة والمضخمات.
لا تتوفر بيانات مفصلة لمخطط التوصيلات لـ LM2902MTX/NOPB.
راجع ورقة البيانات للحصول على تكوين الأطراف الكامل.
التطبيقات النموذجية
LM2902MTX/NOPB مناسب لـ 6 التطبيقs: Industrial Sensor Signal Conditioning, Instrumentation Buffering, Active Filtering and Analog Control, Power-Supply Feedback and Monitoring, Audio and Communication Interfaces, Embedded Control and Automation.
Industrial Sensor Signal Conditioning
The LM2902MTX/NOPB fits industrial sensor interfaces because it combines four independent, internally frequency-compensated channels with a 1 MHz gain-bandwidth product in one 14-TSSOP package. Separate channels can amplify, buffer, filter, and level-shift related sensor signals while limiting PCB area. Its 26 V maximum supply rating also allows use in systems built around a 24 V industrial bus, provided the input, output, and common-mode voltages remain within the manufacturer limits.
موصى به
Instrumentation Buffering
For instrumentation and test systems, the LM2902MTX/NOPB can implement four low-frequency buffers or gain stages around sensors, dividers, and conversion circuits. Internal frequency compensation removes the need for external compensation in conventional closed-loop configurations, while the 1 MHz gain-bandwidth product provides useful bandwidth for many measurement chains. Each channel remains independent, allowing one package to serve several buffered nodes without sharing input or output pins.
موصى به
Active Filtering and Analog Control
The four channels in the LM2902MTX/NOPB can form active filters, summing amplifiers, error amplifiers, or analog control elements in equipment that does not require high-speed op-amp performance. Its general-purpose architecture and 1 MHz gain-bandwidth product are suitable for low-frequency shaping and feedback loops. Because every channel shares the same package and supply rails, bypassing and stability checks should be completed for the complete four-channel configuration.
موصى به
Power-Supply Feedback and Monitoring
The LM2902MTX/NOPB can monitor multiple power rails or participate in feedback loops in a 24 V industrial or control system. Its four independent channels allow separate comparisons for overvoltage, undervoltage, current-shunt signals, and a status amplifier. The 26 V maximum supply rating is relevant to 24 V systems, but it does not by itself permit input signals or outputs to reach the supply rails; designers must observe the common-mode and output-swing restrictions.
موصى به
Audio and Communication Interfaces
The LM2902MTX/NOPB can support low-frequency audio, communications, and interface functions where four general-purpose channels are useful, including preamplifier, mixing, threshold, and drive stages. The 1 MHz gain-bandwidth product is adequate for many voice-band and low-frequency control circuits rather than high-fidelity wideband audio. Signal-level design should account for output-current limits, noise behavior, and the output-voltage range at the selected supply voltage.
موصى به
Embedded Control and Automation
Embedded controllers often need analog channels for current sensing, actuator feedback, threshold detection, and auxiliary signal conditioning. The LM2902MTX/NOPB consolidates four such channels into a 14-TSSOP package while retaining a general-purpose gain-bandwidth product of 1 MHz. This is useful in compact automation equipment where a separate amplifier for every function would increase board area, although controller ADC and DAC limits must be included when defining the end-to-end signal chain.
موصى به
ملخص المنتجات الموصى بها
بيانات مرجعية هندسية لـ LM2902MTX/NOPB — المقارنة وإرشادات التصميم ومعلومات الامتثال.
دليل الاختيار
المقارنة مع البدائل
| المعامل | هذا المنتج | LM2902PW | LM2902DTBG |
|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments |
| Package | 14-TSSOP (PW) | 14-TSSOP (PW) - same package | 14-TSSOP - same package |
| Number of Circuits | 4 circuits | 4 circuits | 4 circuits |
| Amplifier Type | General purpose | General purpose | General purpose |
| Maximum Supply Voltage | 26 V | 26 V (listed as ±13 V) | 30 V |
| Gain-Bandwidth Product | 1 MHz | 1.2 MHz | 1.3 MHz |
| Supply Configuration | Single supply | Single supply | Single supply |
| Frequency Compensation | Internal | Internal | Internal |
أبرز الفروقات
- Exact 26 V maximum supply rating for the approved LM2902-N configuration (مقابلLM2902DTBG)
- Lower nominal gain-bandwidth product supports a conservative general-purpose design (مقابلLM2902PW)
- Four independent general-purpose channels in one 14-TSSOP package (مقابلLM2902DTBG)
ملاحظات التصميم
Place the power-supply bypass capacitor as close as practical to the LM2902MTX/NOPB supply pins, and route it using a short, low-impedance path. Keep sensitive amplifier inputs away from supply-current returns and switching-node copper. Because all four channels share the same package and rails, review the complete channel allocation for shared decoupling requirements rather than designing each amplifier stage in isolation.
Account for source impedance and parasitic input capacitance when selecting feedback resistors and compensation values. The internally compensated architecture is intended for conventional closed-loop use, but unusually high capacitance, very low feedback resistance, or capacitive loading can alter stability. Validate the final gain, bandwidth, and transient response with the actual sensor, cable, ADC, or actuator connected to the board.
Do not assume that a 26 V maximum supply rating permits input or output voltages to swing rail to rail. Check the manufacturer limits for input common-mode voltage, output swing, differential input voltage, and power dissipation under the worst operating condition. Also verify the exact 14-TSSOP pin mapping when evaluating LM2902PW or LM2902DTBG, since a matching package alone does not establish every electrical parameter.
Calculate worst-case dissipation from the actual supply voltage, output voltage, load current, and the number of active channels rather than using supply voltage alone. TSSOP copper area and ambient temperature affect the achievable operating limit. Use the manufacturer power-dissipation and thermal information for the final design, and avoid placing the device directly beside a heat source when its temperature grade does not allow it.
معلومات الامتثال
No definitive RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals statement was identified for the exact MPN.
