LM2902KAVMPWREP - 30V Quad Op Amp | Texas Instruments
料号： LM2902KAVMPWREP ✓ 量产中LM2902KAVMPWREP 概述
An operational amplifier, commonly abbreviated op amp, is a high-gain analog building block used to amplify, buffer, filter, compare, and control voltage signals. Four independent amplifiers share a common power supply within one package, allowing one IC to provide multiple analog signal-chain functions. Within the product hierarchy, this device is a quad operational amplifier, a multi-amplifier IC, and a general-purpose analog signal-conditioning component.
The LM2902KAVMPWREP combines a wide 30 V supply capability with four independent, internally frequency-compensated amplifiers. Its 1.2 MHz gain-bandwidth product supports moderate-bandwidth signal processing, while the 0.5 V/µs slew rate provides adequate response for audio-frequency, transducer, and general control applications. The low 2 mV typical offset voltage helps reduce output error in DC-coupled amplifier stages.
Improved ESD protection rated at 2 kV is a defining feature of the enhanced-product LM2902KAV family. The four amplifiers can operate from a single 5 V to 30 V supply, or from split supplies when the negative supply remains within the device rating. Internal frequency compensation allows each amplifier to operate as a stable closed-loop stage without external compensation components.
Typical uses include industrial sensor conditioning, low-level audio amplification, current-loop interfaces, active filtering, comparators, and four-channel control systems. The extended -55°C to +125°C temperature range makes the device suitable for industrial and high-temperature equipment when combined with appropriate passive components and PCB design practices.
When designing a circuit, account for input common-mode range, output swing, load current, and stability at the selected gain. Place input and output decoupling capacitors close to the supply pins, keep feedback paths short, and verify noise behavior with the actual source impedance and surrounding circuitry.
This product page combines the manufacturer’s core electrical and environmental specifications with practical PCB guidance, direct replacement options, and application-focused engineering analysis for engineers evaluating the LM2902KAVMPWREP.
直接替换替代料： LM2902KAVMPWREP ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： LM2902KAVMPWREP （相同外形与封装尺寸） ——差异在于 Amplifier Type, Gain-Bandwidth Product, Input Offset Voltage, Maximum Supply Voltage, Number of Amplifiers.
LM2902KAVMPW
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
LM2902KAVPWR
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
LM2902MPW
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
LM2902MPT
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
LM2902PWRG3
✅ 直接替换 ⚠️ 规格未核验联系询价
查看数据手册 →LM2902KAVMPWREP 最大额定值与电气特性
| Amplifier Type | General Purpose |
| Number of Circuits | 4 circuits |
| Number of Amplifiers | 4 independent amplifiers |
| Minimum Supply Voltage | 5 V |
| Maximum Supply Voltage | 30 V |
| Gain-Bandwidth Product | 1.2 MHz typical |
| Slew Rate | 0.5 V/µs typical |
| Input Offset Voltage | 2 mV typical |
| Common-Mode Rejection Ratio | 80 dB |
| Input Bias Current | -0.5 µA |
| ESD Protection | 2 kV |
| Minimum Operating Temperature | -55°C |
| Maximum Operating Temperature | 125°C |
| 封装 | 14-TSSOP, 0.173 x 4.40 mm |
| 引脚数 | 14 pins |
| 安装类型 | Surface Mount |
| Compensation | Internal frequency compensation |
LM2902KAVMPWREP 引脚配置
| 引脚 1 | 1OUT — Output of amplifier 1 |
| 引脚 2 | 1IN- — Inverting input of amplifier 1 |
| 引脚 3 | 1IN+ — Non-inverting input of amplifier 1 |
| 引脚 4 | V+ — Positive supply connection |
| 引脚 5 | 2IN+ — Non-inverting input of amplifier 2 |
| 引脚 6 | 2IN- — Inverting input of amplifier 2 |
| 引脚 7 | 2OUT — Output of amplifier 2 |
| 引脚 8 | 3OUT — Output of amplifier 3 |
| 引脚 9 | 3IN- — Inverting input of amplifier 3 |
| 引脚 10 | 3IN+ — Non-inverting input of amplifier 3 |
| 引脚 11 | V- — Negative supply connection or ground in single-supply operation |
| 引脚 12 | 4IN+ — Non-inverting input of amplifier 4 |
| 引脚 13 | 4IN- — Inverting input of amplifier 4 |
| 引脚 14 | 4OUT — Output of amplifier 4 |
典型应用
LM2902KAVMPWREP 适用于 6 应用s: Industrial Sensor Signal Conditioning, Audio Preamp and Filtering, Current-Loop Interface Amplifier, Active Filter and Control Loops, Battery-Powered Analog Interface, High-Temperature Industrial Control.
Industrial Sensor Signal Conditioning
The LM2902KAVMPWREP suits low-level sensor-conditioning stages that require four channels on a common supply. Its 2 mV typical input offset voltage and 80 dB common-mode rejection help preserve small signals from resistive, bridge, or industrial transducers, while the 1.2 MHz gain-bandwidth product supports useful bandwidth beyond pure DC operation. The four independent amplifiers can form gain stages, active filters, or buffers around a shared sensor interface. For a 5 V to 30 V control system, place decoupling close to the supply pins and route high-current returns away from the input reference. The extended -55°C to +125°C range supports harsh industrial environments, provided the complete circuit also satisfies its temperature requirements.
推荐
Audio Preamp and Filtering
Each LM2902KAVMPWREP amplifier can process audio-band signals where a 1.2 MHz gain-bandwidth product and 0.5 V/µs slew rate are sufficient. Four channels allow a design to implement multiple low-noise gain stages, balanced input amplifiers, or active filters without using four separate packages. The 2 mV typical input offset is particularly helpful when the circuit amplifies low-level audio around the DC reference established at mid-supply. Single-supply operation simplifies portable and embedded equipment, although the signal path must remain inside the input common-mode range. Keep input and feedback traces short, maintain a continuous ground reference, and check the closed-loop response at the highest gain used in the audio chain.
推荐
Current-Loop Interface Amplifier
The LM2902KAVMPWREP can serve as the receiver amplifier in a 4-20 mA industrial current-loop interface when the loop amplifier only requires moderate bandwidth. Its four internal amplifiers allow one device to handle the active input plus auxiliary channels for voltage sensing, filtering, or diagnostics. The 80 dB common-mode rejection is valuable when the input includes substantial common-mode voltage, while the 2 mV typical offset reduces error in the converted measurement. Select resistor values to establish the required gain, preserve phase margin, and keep the output within the device’s output-swing range. Validate operation over the full 5 V to 30 V supply range and against the maximum loop voltage and ground-potential variation of the installed equipment.
推荐
Active Filter and Control Loops
The four LM2902KAVMPWREP amplifiers are well suited to active filters and moderate-bandwidth control loops because each channel is independently frequency compensated. A designer can implement multiple low-pass, high-pass, or notch stages while using the 1.2 MHz gain-bandwidth product to establish practical bandwidth and noise-gain limits. The 0.5 V/µs slew rate also supports loop dynamics that do not require high-speed data conversion. Component tolerances and amplifier input offset directly influence cutoff frequency and DC accuracy, so calculate those errors rather than relying on nominal resistor values. Keep each feedback loop compact, avoid routing feedback through switching-power stages, and use grounded guard techniques when very high resistor impedances are part of the filter.
推荐
Battery-Powered Analog Interface
A single 5 V supply makes the LM2902KAVMPWREP useful in battery-powered instrumentation where multiple low-speed analog channels must operate from one regulator. Four amplifiers can provide input buffering, gain conversion, filtering, and output drive while sharing the same package and supply pins. The 1.2 MHz gain-bandwidth product is more than adequate for many sensor, status, and control signals, and the low typical offset helps preserve accuracy near the supply rails. Because the amplifiers can operate on a single supply, bias bipolar signals around mid-supply and verify the usable input and output ranges. Keep the device away from hot switching components and use local supply bypassing to limit conducted noise reaching the measurement channels.
推荐
High-Temperature Industrial Control
The LM2902KAVMPWREP’s -55°C to +125°C operating-temperature range supports industrial control and monitoring equipment exposed to elevated ambient temperatures. Its four-channel arrangement can consolidate precision amplifier stages around sensors, actuators, and protection circuits. The 80 dB common-mode rejection helps suppress shared interference in multiwire installations, while the 2 mV typical offset supports low-level error budgets. Improved 2 kV ESD protection adds handling robustness for equipment assembled and serviced in industrial environments. Designers should still apply input protection appropriate to the installation, verify resistor and capacitor temperature coefficients, and keep the amplifier thermally separated from nearby power converters. Confirm that every surrounding part supports the intended temperature range.
推荐
推荐产品汇总
工程参考数据： LM2902KAVMPWREP ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | LM2902KAVMPW | LM2902KAVPWR | LM2902MPW | LM2902MPT | LM2902PW |
|---|---|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Package | 14-TSSOP | 14-TSSOP | 14-TSSOP | 14-TSSOP | 14-TSSOP | 14-TSSOP |
| Number of Circuits | 4 circuits | 4 circuits | 4 circuits | 4 circuits | 4 circuits | 4 circuits |
| Amplifier Type | General Purpose | General Purpose | General Purpose | General Purpose | General Purpose | General Purpose |
| Maximum Supply Voltage | 30 V | 30 V | 30 V | 30 V | 30 V | 30 V |
| Gain-Bandwidth Product | 1.2 MHz typical | 1.2 MHz typical | 1.2 MHz typical | 1.2 MHz typical | 1.2 MHz typical | 1.2 MHz typical |
| Slew Rate | 0.5 V/µs typical | 0.5 V/µs typical | 0.5 V/µs typical | 0.5 V/µs typical | 0.5 V/µs typical | 0.5 V/µs typical |
关键差异点
- Enhanced ESD protection in a quad op amp （对比 LM2902PW)
- Four independent amplifiers from one package （对比 LM2903DR)
- Wide supply operation for industrial rails （对比 LM2902MPT)
设计说明
Place the supply-bypass capacitor immediately beside the V+ and V− pins, with its return connected directly into the ground plane. Keep amplifier inputs and feedback components away from switching nodes and high-current return paths. For single-supply operation, connect V− to the system ground while ensuring the input signals remain within the usable common-mode range. Use a continuous ground reference under the 14-TSSOP to reduce parasitic inductance.
Do not assume that the full 5 V to 30 V supply rating can be used with any input and output voltage. Check the input common-mode range, output swing, output-current capability, and junction-temperature limit across the operating range. In single-supply systems, bias signals around mid-supply and confirm that shutdown or power-down states do not force an input outside the valid range. Verify all five alternative orderable MPNs against the exact temperature, ESD, and qualification requirements before substitution.
Keep each feedback loop physically small and connect the inverting input directly to its feedback component rather than routing it around the package. For high-impedance sources, use guarding and minimize board-area leakage around the non-inverting input. When driving an ADC, cable, or other capacitive load, evaluate the step response and add isolation resistance or compensation only where the application requires it. The 1.2 MHz gain-bandwidth product limits useful closed-loop bandwidth as gain increases.
Estimate total dissipation from the supply voltage, quiescent current, output current, and output voltage swing across all four amplifiers. The TSSOP package has limited heat-spreading area, so provide copper around the device without placing a thermal obstruction beneath the package. Avoid mounting the amplifier immediately beside a regulator or power device when ambient temperature approaches 125°C. Use the manufacturer’s thermal characterization data for the final PCB geometry and enclosure conditions.
合规信息
The cited manufacturer information identifies the enhanced LM2902KAV family and its 2 kV ESD protection but does not explicitly state the requested compliance attributes. AEC-Q100 status is not established for this exact orderable MPN.
