LM2904LVQDGKRQ1 - 5.5V 1MHz Automotive Dual Op Amp | Texas Instruments
MPN: LM2904LVQDGKRQ1 ✓ Hoạt độngLM2904LVQDGKRQ1 Tóm tắt
An operational amplifier is an analog integrated circuit that uses high-gain differential amplification to compare an inverting input with a non-inverting input. Within the broader hierarchy, it is a voltage-feedback amplifier, an amplifier IC, and a signal-conditioning semiconductor. The dual configuration allows one device to process two related channels, reducing board area when both channels share the same supply and ground reference.
The LM2904LV-Q1 family targets automotive and industrial low-voltage applications where supply efficiency, cost, and dependable operation are important. The 2.7 V to 5.5 V operating range supports systems powered from regulated 3.3 V and 5 V rails. Its 1 MHz bandwidth makes it suitable for general-purpose amplification, buffering, voltage comparison, filtering, and sensor-interface functions rather than high-speed signal processing.
The dual amplifier architecture is useful in sensor conditioning, current sensing, control loops, line-driver buffers, and automotive body electronics. Each amplifier can be used independently, allowing the two channels to monitor complementary signals or perform separate functions in a compact circuit. Input and output stability, common-mode range, and output-drive capability should be checked against the actual signal levels and load conditions.
The principal design trade-off is that this is a general-purpose, low-voltage amplifier rather than a precision or high-speed device. Its 3 mV offset specification is appropriate for many sensing and control paths, but systems requiring tighter offset accuracy need to evaluate the bias current, input voltage range, noise, and application error budget.
This page combines the manufacturer specifications, package information, application guidance, comparison parameters, and practical drop-in selection notes for engineers evaluating the LM2904LVQDGKRQ1.
Bộ thay thế dễ dàng lắp đặt cho LM2904LVQDGKRQ1 — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
LM2904LVQDRQ1
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →LM2904LVQDGKRQ1
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →LM2904LVQDGKRQ1-Q1
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
LM2904QDGKRQ1
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
LM2902LVQDGKRQ1
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
LM2904LVQDGKRQ1 Tỷ lệ tối đa & tính chất điện
| Product Type | Dual operational amplifier |
| Number of Amplifier Circuits | 2 circuits |
| Supply Voltage Range | 2.7 V to 5.5 V |
| Maximum Supply Voltage | 5.5 V |
| Gain-Bandwidth Product | 1 MHz |
| Input Offset Voltage | 3 mV |
| Automotive Qualification | AEC-Q100 automotive-grade device |
| Hộp | 8-VSSOP |
| Kiểu lắp đặt | Surface mount |
| Standard Product | General-purpose operational amplifier |
Hướng dẫn cấu hình chân LM2904LVQDGKRQ1 8-vssop
Cấu hình chân cho LM2904LVQDGKRQ1 (8-vssop gói). Thành phần số hiệu này có chân đầu vào, đầu ra và nguồn cung cấp. Tham khảo tài liệu thông số kỹ thuật của nhà sản xuất để biết cấu hình chân bù, bù trừ và chân kích hoạt. Hoàn hảo cho điều kiện tín hiệu và mạch khuếch đại.
Không có dữ liệu chân cụ thể sẵn có cho LM2904LVQDGKRQ1.
Tham khảo: tài liệu kỹ thuật cho cấu hình chân đầy đủ.
Ứng dụng tiêu biểu
LM2904LVQDGKRQ1 phù hợp cho 6 Áp dụngs: Automotive Sensor Signal Conditioning, 3.3V Control-Loop Amplification, Automotive Actuator Drive Interface, Battery-Powered Monitoring Circuit, Active Filtering and Buffering, Low-Voltage Industrial Interface.
Automotive Sensor Signal Conditioning
The LM2904LVQDGKRQ1 fits low-voltage automotive sensor conditioning because it accepts a 2.7 V to 5.5 V supply and provides two amplifier channels for related inputs. Its 1 MHz gain-bandwidth product is adequate for buffering and modest-gain stages in 3.3 V or 5 V sensor interfaces. The 3 mV input offset specification must be included in the system error budget, while the dual layout helps reduce board area compared with two separate single amplifiers.
Được đề xuất
3.3V Control-Loop Amplification
In a 3.3 V control system, the LM2904LVQDGKRQ1 can amplify error signals, support active filtering, or buffer a feedback node. Its 2.7 V lower supply limit provides operating margin below a nominal 3.3 V rail, while the 1 MHz bandwidth supports general-purpose control-loop functions. The designer should verify the input common-mode range, output swing, stability with the selected feedback network, and the offset contribution of 3 mV.
Được đề xuất
Automotive Actuator Drive Interface
The dual amplifier can serve as the input and feedback stage for a low-voltage automotive actuator interface. Placing the device between a sensor or command signal and a downstream driver stage can improve drive capability and isolate the source from the load. The 5.5 V maximum supply keeps the device aligned with low-voltage automotive rails, while the 3 mV offset and 1 MHz bandwidth define the main error and dynamic-performance constraints.
Được đề xuất
Battery-Powered Monitoring Circuit
For a battery-powered monitor, the LM2904LVQDGKRQ1 can amplify a low-level sensor signal near a regulated 3.3 V rail. Its low-voltage supply operation reduces the need for a high-voltage amplifier in portable or energy-limited systems, and two channels can monitor two measurements with a shared supply. The application must account for battery variation, common-mode input limits, output headroom, and the offset error introduced by the 3 mV specification.
Được đề xuất
Active Filtering and Buffering
The LM2904LVQDGKRQ1 is suitable for first-order active filters, unity-gain buffers, and general analog conditioning when the required bandwidth is near the 1 MHz gain-bandwidth class. The dual package allows two filters or buffers to share one package and supply node. Design the feedback network around the actual load and source impedance, and confirm that the operating point keeps both input and output signals within the device's voltage limits.
Được đề xuất
Low-Voltage Industrial Interface
The LM2904LVQDGKRQ1 can support general-purpose industrial interfaces running from regulated 3.3 V or 5 V supplies. It can buffer transducer outputs, compare control signals, or provide gain before a communications or power-control stage. The automotive-qualified family status is useful when ruggedized sourcing is preferred, but the designer should still verify the exact temperature range, input/output limits, and board-level noise behavior.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho LM2904LVQDGKRQ1 — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | LM2904LVQDRQ1 | LM2904LVQDGKRQ1 | LM2904LVQDGKRQ1-Q1 | LM2904QDGKRQ1 | LM2902LVQDGKRQ1 |
|---|---|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Package | 8-VSSOP | 8-VSSOP | 8-VSSOP | 8-VSSOP | 8-VSSOP | 8-VSSOP |
| Amplifier Configuration | Dual, 2 circuits | Dual, 2 circuits | Dual, 2 circuits | Dual, 2 circuits | Dual, 2 circuits | Quad, 4 circuits |
| Automotive Grade | Yes | Yes | Yes | Yes | Yes | Yes |
Bảo phân biệt quan trọng
- Low-voltage operation (vsLM2904QDGKRQ1)
- Dual-channel integration (vsLM2902LVQDGKRQ1)
- Automotive-oriented family positioning (vsLM2904LVQDRQ1)
Ghi chú thiết kế
Place the supply bypass capacitor as close as practical to the V+ and ground pins, and use a short, low-inductance return path. Keep input, feedback, and output routing compact because parasitic capacitance in the feedback network can alter stability. The exact decoupling value and layout should follow the manufacturer recommendations for the LM290xLV-Q1 family.
Do not assume that a 5.5 V maximum supply allows a 5.5 V signal at every pin. Check the input common-mode range and output swing before using the amplifier near either supply rail. For low-voltage designs, calculate the offset contribution from the 3 mV input-offset specification and confirm that the feedback network remains stable with the selected source and load impedances.
Estimated: the device power dissipation is approximately the supply voltage multiplied by total supply current plus output-stage load dissipation. The input values for an exact calculation are 5.5 V maximum supply and the application-specific supply current. Use the manufacturer thermal data and the actual board copper area for junction-temperature verification.
Thông tin tuân thủ
Texas Instruments identifies the LM2904LV-Q1 family as automotive-grade. Specific RoHS, REACH, lead-free, halogen-free, and conflict-minerals statuses require confirmation for the exact ordering code.
