LM2904ITP/NOPB - Dual 26V 700kHz Op Amp | Texas Instruments
部品番号: LM2904ITP/NOPB ✓ 生産中LM2904ITP/NOPB 概要
An operational amplifier, or op amp, is a voltage-controlled differential amplifier intended to amplify the difference between two input voltages. It belongs to the amplifier IC hierarchy, within the broader semiconductor and analog signal-processing categories. A dual op amp combines two amplifier channels in one package, allowing a circuit to implement two signal-processing functions while reducing board area and the number of external components.
The LM2904ITP/NOPB is identified as a standard general-purpose amplifier. The listed electrical characteristics include a 26 V maximum supply voltage, 700 kHz operating bandwidth, 1 MHz gain-bandwidth product and 0.1 V/us slew rate. These values position the device for moderate-frequency signal handling rather than high-speed precision work. The 8-DSBGA package also gives PCB designers a compact option for dual-channel analog circuits.
The device belongs to the long-established LM2904 family and is associated with the LM158-series operating-amplifier architecture, consisting of two independent, high-gain, internally frequency-compensated amplifiers designed for single-supply operation over a wide voltage range. Internal frequency compensation removes the need for an external dominant-pole capacitor in typical closed-loop configurations, simplifying implementation and stabilizing operation across supported gain settings.
Typical uses include low-frequency sensor conditioning, audio preamplification, instrumentation, active filtering, and general dual-amplifier analog signal chains. The dual-channel configuration is particularly useful when a design needs symmetric gain stages, a voltage follower alongside a signal amplifier, or two related sensor interfaces sharing one compact package.
Designers should verify the exact input common-mode range, output swing, input offset, input-bias current, supply-current behavior and temperature limits against the manufacturer datasheet before finalizing a circuit. Place the 8-DSBGA on a PCB layout that separates input, output and supply paths appropriately, and use suitable bypassing capacitance at the power pins. Because the package is a fine-pitch BGA rather than a leaded package, assembly capability and land-pattern compatibility also require verification.
This product page organizes the confirmed ordering, package, electrical, and commercial information while distinguishing documented LM2904-family options from unconfirmed substitutions. It also provides application guidance, comparison fields, and a pinout limitation notice so engineers can make a package-aware sourcing decision without assuming that every electrically similar dual op amp is a true drop-in replacement.
ドロップイン代替品: LM2904ITP/NOPB — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
この製品に利用可能なドロップイン代替品はありません。
代替品をリクエストLM2904ITP/NOPB 最大定格＆電気的特性
| Amplifier Type | General Purpose |
| Number of Amplifier Circuits | 2 circuits |
| Maximum Supply Voltage | 26 V |
| Rated Operating Bandwidth | 700 kHz |
| Gain-Bandwidth Product | 1 MHz |
| Slew Rate | 0.1 V/us |
| パッケージ | 8-DSBGA |
| Packaging | Tape & Reel |
| 実装タイプ | Surface Mount |
LM2904ITP/NOPB 8-dsbga ピン配置ガイド
LM2904ITP/NOPB (8-dsbga パッケージ) のピン配置。 このアナログコンポーネントは、入力、出力、および電源ピンを備えています。オフセットナル、補償、イネーブルピンの設定については、メーカーのデータシートを参照してください。信号調整やアンプ回路に最適です。
詳細なピン配置データはありません: LM2904ITP/NOPB.
詳細は データシート をご参照ください。
主な用途
LM2904ITP/NOPB の用途: 6 件s: Sensor Signal Conditioning, Audio Preamplification, Active Analog Filtering, Instrumentation Buffering, Industrial Control Signal Paths, Dual-Channel Reference Buffer.
Sensor Signal Conditioning
LM2904ITP/NOPB fits moderate-bandwidth sensor-conditioning circuits that require two general-purpose amplifier channels. A 1 MHz gain-bandwidth product and 0.1 V/us slew rate provide useful headroom for low-frequency sensor signals while keeping the implementation compact in an 8-DSBGA package. One channel can amplify the sensor output and the other can buffer a reference or feedback node. Before selecting resistor values, verify the input common-mode range, output swing, offset voltage, and bias current against the manufacturer datasheet.
Audio Preamplification
The dual LM2904ITP/NOPB can provide two low-frequency preamplifier channels for audio or communication equipment. Its 1 MHz gain-bandwidth product is substantially above the audio band, while the 0.1 V/us slew rate should be checked against the largest expected signal swing. The 8-DSBGA package helps reduce board area in multi-channel designs. Confirm output drive, headroom, noise, and common-mode limits in the datasheet because the general-purpose 26 V device is not automatically suitable for every audio impedance and rail condition.
Active Analog Filtering
LM2904ITP/NOPB is applicable to first- and second-order active-filter stages operating at moderate frequencies. The two independent channels allow a filter and an output buffer to share one 8-DSBGA package, reducing component count. Use the 1 MHz gain-bandwidth product and 0.1 V/us slew rate to establish an initial design envelope, then verify closed-loop stability and signal amplitude in simulation. Do not assume the 700 kHz family bandwidth can be used directly as a filter cutoff without accounting for gain and closed-loop bandwidth.
Instrumentation Buffering
In instrumentation and test equipment, the LM2904ITP/NOPB can implement non-inverting or inverting gain stages with one or both channels. Its two-circuit configuration supports signal conditioning plus buffering in a compact 8-DSBGA footprint. The confirmed 26 V maximum supply voltage accommodates many industrial supply arrangements, but the valid input common-mode and output voltage ranges still determine the usable signal window. Check offset, input-bias current, noise, and temperature drift before using it for precision measurements.
Industrial Control Signal Paths
LM2904ITP/NOPB can support low-frequency control and monitoring paths in industrial systems where two general-purpose amplifier channels are useful in one package. The 8-DSBGA layout supports compact board construction, while the 26 V maximum supply rating and 700 kHz operating bandwidth suit many low-bandwidth signal chains. Confirm the actual supply range, input and output limits, channel behavior, and environmental requirements in the manufacturer documentation. The component should not be treated as a dedicated comparator because its intended function is linear amplification.
Dual-Channel Reference Buffer
The LM2904ITP/NOPB can buffer two related low-frequency nodes, such as sensor references or control signals, when the source impedance and required bandwidth are moderate. A 1 MHz gain-bandwidth product and 0.1 V/us slew rate make it more appropriate for general signal conditioning than for demanding high-precision reference networks. Verify offset, bias current, output loading, and common-mode behavior because those characteristics determine the actual buffering error. Its dual 8-DSBGA configuration can still simplify routing compared with two separate packages.
エンジニアリング参考データ: LM2904ITP/NOPB — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 |
|---|---|
| Package | 8-DSBGA |
| Brand | Texas Instruments |
| Amplifier Type | General Purpose |
| Number of Circuits | 2 circuits |
| Maximum Supply Voltage | 26 V |
| Rated Operating Bandwidth | 700 kHz |
| Gain-Bandwidth Product | 1 MHz |
| Slew Rate | 0.1 V/us |
| Packaging | Tape & Reel |
主な差別化要因
- Exact dual-channel general-purpose ordering code （vs LM2904ITPX/NOPB)
- Compact integration of two amplifier channels （vs LM2904B)
- Defined supply-voltage and dynamic specifications （vs Renesas LM2904 alternatives)
設計ノート
Treat the 8-DSBGA as a fine-pitch BGA assembly and use the exact manufacturer land pattern. Confirm pad dimensions, solder-mask and paste design rules, placement tolerances, and the board's assembly capability before releasing the PCB. Keep the two amplifier channels physically separate where their inputs or outputs could couple, and route sensitive feedback traces away from supply and output paths.
Place the required supply-bypass capacitors close to the device's power pins and return each capacitor to a quiet ground reference. The available results confirm a 26 V maximum supply voltage but do not establish a minimum operating voltage, per-channel supply current, or permitted output current. Derive the power budget from the complete manufacturer specification before selecting the regulator and local capacitance.
Design each closed-loop stage for a stable gain with respect to the 1 MHz gain-bandwidth product and 0.1 V/us slew rate. Avoid assuming that the 700 kHz family operating bandwidth is the maximum usable closed-loop bandwidth for every gain setting. Simulate large-signal behavior, output loading, and channel interaction with the selected external resistor and capacitor values.
Do not select a substitute solely because it is a dual general-purpose op amp. The exact target uses an 8-DSBGA package, while common alternatives may use leaded or smaller-outline packages with different pin numbering. A valid replacement must match the footprint and pin functions and satisfy the supply, common-mode, output-swing, offset, bandwidth, noise, and temperature requirements of the original circuit.
コンプライアンス情報
No explicit RoHS, REACH, automotive-qualification, lead-free, halogen-free, or conflict-minerals statements are identified for this exact orderable configuration. Automotive qualification is not applicable to the confirmed general-purpose ordering code.
