LM2902MTX/NOPB - Quad 26V 1MHz Op Amp | Texas Instruments
MPN： LM2902MTX/NOPB ✓ 啟用中LM2902MTX/NOPB 概覽
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.
直接替換替代品，適用於 LM2902MTX/NOPB — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： LM2902MTX/NOPB （相同外形與佔位） — 差異在於 Amplifier Type, Gain-Bandwidth Product, Package, Packaging, Supply Configuration.
LM2902PWRG3
✅ 直接替換聯絡詢價
查看資料表 →LM2902DTBG
✅ 直接替換📋 參考替代品（不在目錄中）
LM2902MTX/NOPB 最大額定值與電氣特性
| 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 |
| 封裝 | 14-TSSOP (PW) |
| Package Pin Count | 14 pins |
| Package Width | 0.173 inch (4.40 mm) |
| Packaging | Tape and reel |
| 安裝類型 | Surface mount |
LM2902MTX/NOPB 0.173 inch (4.40 mm) 腳位配置指南
LM2902MTX/NOPB（0.173 inch (4.40 mm) 封裝）的腳位配置。 此類比元件具有輸入、輸出與電源腳位。偏移歸零、補償與致能腳位配置請參閱製造商資料表。適用於訊號調理與放大器電路。
無詳細腳位定義資料： LM2902MTX/NOPB.
請參閱 資料表 以查看完整腳位配置。
典型應用
LM2902MTX/NOPB 適用於 6 應用s: 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.
推薦
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.
推薦
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.
推薦
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.
推薦
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.
推薦
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.
推薦
推薦產品摘要
工程參考資料，適用於 LM2902MTX/NOPB — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | 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 |
主要差異化特點
- Exact 26 V maximum supply rating for the approved LM2902-N configuration (對比LM2902DTBG)
- Lower nominal gain-bandwidth product supports a conservative general-purpose design (對比LM2902PW)
- Four independent general-purpose channels in one 14-TSSOP package (對比LM2902DTBG)
設計說明
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.
合規資訊
No definitive RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals statement was identified for the exact MPN.
