LM2924MX - Low-Power Amplifier/Comparator | Texas Instruments
部品番号: LM2924MX ✓ 生産中LM2924MX 概要
An operational amplifier is a voltage-controlled analog amplifier whose open-loop gain is made large enough to amplify small signals accurately when negative feedback is applied. A voltage comparator compares one input voltage with another and changes its output state when a threshold is crossed. Together, these functions form part of the broader linear and mixed-signal IC hierarchy, where they support sensor conditioning, control loops, signal detection, and industrial interface circuits.
The LM2924MX combines three notable product attributes. First, its bipolar construction places it in the classical family of analog amplifier ICs. Second, its single-function analog-circuit architecture supports compact implementation of transducer and signal-conditioning paths. Third, the 8-pin surface-mount SOIC package permits automated assembly while reducing board area compared with larger through-hole packages. Its industrial temperature grade also positions it for equipment operating beyond typical commercial-temperature conditions.
LM2924MX is identified as a low-power operational amplifier and voltage comparator. This dual operating role allows the same device to amplify a low-level analog signal and evaluate whether that signal has crossed a defined reference level. In feedback-based configurations, the amplifier behavior supports closed-loop gain; in open-loop threshold service, the comparator behavior provides a digital indication of an analog condition. Exact gain-bandwidth, input-offset, supply-voltage, and output-current limits should be confirmed from the manufacturer datasheet before final circuit sizing.
Typical uses include bridge or resistive-transducer signal conditioning, industrial sensor interfaces, low-level control-signal amplification, threshold detection, and alarm-generation circuits. The 8-pin SOIC footprint is suitable for compact analog boards where a surface-mount part is preferred and where signal conditioning must be placed close to the sensor or source to minimize susceptibility to interference.
Designers should determine the allowable supply range, input common-mode range, output swing, input-offset voltage, noise, and comparator propagation behavior from the manufacturer datasheet. Decoupling capacitors should be placed close to the supply pins, while sensitive input routing should avoid switching nodes and high-current return paths. Feedback resistors and any hysteresis network must be evaluated for the required gain, offset, and threshold stability.
This product page consolidates the exact package, temperature-grade, circuit-type, and lifecycle information for LM2924MX, maps suitable analog applications, and provides engineering guidance for layout, compensation, and sourcing. It also distinguishes confirmed drop-in replacements from merely similar amplifier or comparator families so that PCB reuse decisions remain technically defensible.
ドロップイン代替品: LM2924MX — 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LM2924MX 最大定格＆電気的特性
| Device Type | Low-power operational amplifier/voltage comparator |
| Analog Circuit Function | 1 function |
| Semiconductor Technology | Bipolar |
| Primary Application | Transducer amplifier |
| Number of Terminals | 8 terminals |
| Package Code | SOP |
| Package Shape | Rectangular |
| 実装タイプ | Surface mount |
| Temperature Grade | Industrial |
| RoHS ステータス | unknown |
| REACH Status | unknown |
| AEC-Q100 Qualification | unknown |
LM2924MX rectangular ピン配置ガイド
LM2924MX (rectangular 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: LM2924MX.
詳細は データシート をご参照ください。
主な用途
LM2924MX の用途: 6 件s: Resistive Transducer Signal Conditioning, Industrial Sensor Threshold Detection, Low-Level Process Signal Amplification, Control-Logic Interface, Alarm and Limit Detection, Compact Analog Control Board.
Resistive Transducer Signal Conditioning
The LM2924MX fits resistive-transducer conditioning because it is specified as a low-power, single-function transducer amplifier in an 8-pin surface-mount SOIC package. It can amplify a small sensor-generated voltage in a feedback configuration and provide a comparator indication when the conditioned level reaches a reference. The industrial temperature grade makes it relevant to factory equipment, while its bipolar analog construction supports conventional resistor-based feedback networks. During design, verify the input common-mode range, output swing, input-offset voltage, and supply limits in the manufacturer datasheet. Place the feedback network close to the amplifier, keep the sensor input trace short, and return unused or reserved pins according to the pin-description table rather than relying on another amplifier’s arrangement.
おすすめ
Industrial Sensor Threshold Detection
LM2924MX is applicable to industrial sensor threshold detection because its stated functions include operational-amplifier behavior and voltage-comparator operation. A sensor signal can be conditioned and then compared with a reference to create an alert or control transition, reducing the number of separate analog functions needed near the sensor. Its 8-pin SOIC package is compact and suitable for automated surface-mount assembly, while the industrial temperature grade supports a wider operating environment. Design the reference and hysteresis network for the required switching margin, and confirm comparator response time and output behavior from the manufacturer datasheet. Route high-impedance sense lines away from switching circuitry and use a stable local ground reference to prevent threshold errors.
おすすめ
Low-Level Process Signal Amplification
The LM2924MX can support low-level process-signal amplification when the source impedance, common-mode voltage, and required closed-loop gain fit its verified electrical limits. Its designation as a low-power transducer-amplifier IC and its bipolar construction align it with classical analog signal-conditioning implementations. The 8-pin surface-mount package helps reduce board area, making the device practical beside a sensor connector or analog front end. Before selecting feedback resistors, verify input offset, bias current, noise, gain-bandwidth behavior, and maximum output swing in the manufacturer datasheet. Use a quiet ground plane, short feedback paths, and local supply bypassing. Do not assume that a generic dual amplifier in the same package has the same pin functions or threshold behavior.
おすすめ
Control-Logic Interface
LM2924MX is useful in a control-logic interface when a control signal must be both conditioned and evaluated against a decision level. Its operational-amplifier function can establish the required signal amplitude, while its voltage-comparator function can produce a logic-compatible transition when a threshold is reached. The 8-pin SOIC package supports compact mixed-signal boards, and the industrial temperature grade is appropriate for equipment operating outside consumer-only conditions. The system designer should check output rise and fall behavior, allowable output current, supply voltage, and comparator timing before connecting it to a digital input. Provide a defined reference, account for tolerance and hysteresis, and maintain short paths between the analog node and device to limit coupling from digital switching activity.
おすすめ
Alarm and Limit Detection
The LM2924MX can be used in alarm and limit-detection circuits that require an analog measurement to be interpreted as a normal or abnormal condition. The device combines low-power operational-amplifier and voltage-comparator operation in one 8-pin surface-mount package, allowing conditioning and thresholding near the monitored signal source. This arrangement is suitable for equipment monitoring, industrial controls, and compact embedded analog interfaces. Choose resistor values to place the signal and reference within the verified common-mode and output-swing limits, then set hysteresis greater than measured noise and reference drift. Verify the manufacturer-rated operating temperature and response timing, and connect the package ground pins to a low-impedance return. Avoid placing the decision threshold directly beside fast-switching power nodes.
おすすめ
Compact Analog Control Board
LM2924MX supports compact analog control boards where an 8-pin surface-mount device can combine signal amplification and threshold interpretation near an I/O connector. Its small SOP package reduces routing distance between a transducer input and the system control logic, which can improve noise control when the layout is carefully designed. The device is identified as an industrial-grade, low-power bipolar analog IC, making it a candidate for factory and process-control equipment. Use the manufacturer pin-description table to assign the footprint, and follow the package drawing for pin-1 orientation. Provide short ground returns, local bypass capacitance, and guarded sensor traces. Confirm the supply range and absolute maximum ratings before connecting field wiring or adding protection networks.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: LM2924MX — 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 |
|---|---|
| Brand | Texas Instruments |
| Package | 8-terminal rectangular surface-mount SOP |
| Device Function | Low-power operational amplifier and voltage comparator |
| Analog Circuit Function Count | 1 function |
| Semiconductor Technology | Bipolar |
| Primary Application | Transducer amplifier |
| Temperature Grade | Industrial |
| Mounting Type | Surface mount |
| Terminal Count | 8 terminals |
主な差別化要因
- Combines amplifier and comparator roles in one IC （vs LM2903DR)
- Designed around transducer-amplifier use （vs LM2900DR)
- Industrial-grade surface-mount implementation （vs LM224ADR)
設計ノート
Place the LM2924MX close to the transducer or low-level signal source, and keep input and feedback traces short. Route those traces away from switching nodes, inductors, and high-current return paths. Use the 8-pin SOIC pin-description table to establish the pin-1 orientation and avoid assigning functions from a visually similar but electrically different amplifier package.
Do not treat every 8-pin amplifier or comparator as a drop-in replacement for LM2924MX. A valid substitution must match the pin functions, supply range, amplifier limits, comparator behavior, and temperature grade. In particular, verify common-mode range, output swing, offset, response behavior, and output-current requirements before changing the bill of materials.
Use a low-impedance ground plane and place supply-decoupling capacitance adjacent to the device pins. Sensitive threshold inputs should be guarded or surrounded by grounded copper where practical. Keep field-sensor connections away from switching power paths, and validate the complete layout for noise margin and unintended comparator chatter rather than evaluating only nominal gain.
Confirm the acceptable supply range and absolute maximum ratings in the manufacturer datasheet before selecting the bypass network. Because LM2924MX is characterized as a low-power device, account for supply current, output drive, and the input network’s own power dissipation. Do not derive operating limits from another amplifier in the same 8-pin SOIC outline.
コンプライアンス情報
No specific RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals statement is identified for LM2924MX in the current product information. Request the applicable manufacturer declarations before qualification.
