TLV274IN - 3MHz Quad Rail-to-Rail Op Amp | Texas Instruments
MPN： TLV274IN ✓ 啟用中TLV274IN 概覽
An operational amplifier is an analog building block that uses high open-loop gain to amplify the difference between two input voltages. Within the signal-chain hierarchy, the TLV274IN belongs to the operational-amplifier, analog-amplifier, and semiconductor categories. Rail-to-rail output capability allows the output to approach the positive or negative supply rail under suitable load conditions, while the wide supply range supports single-supply and dual-supply systems.
Key features include four amplifiers in one package, a 3 MHz bandwidth, 2.4 V/µs slew rate, 550 µA per-channel supply current, 39 nV/Hz input-voltage-noise density, and 1 pA input-bias current over the specified temperature range. The low-power bias current is useful when preserving sensor signals and reducing loading, while the 3 MHz bandwidth supports higher-frequency signal paths and active filtering.
The TLV274IN is based on a voltage-feedback amplifier architecture, as identified in the verified comparison data. In a typical application, one channel is used for amplification, another for buffering, and the remaining channels for filtering or instrumentation. Its rail-to-rail output supports low-voltage systems where the signal must use much of the available supply range.
Typical applications include sensor-interface circuits, data-acquisition signal chains, low-frequency filters, buffered analog controls, portable instrumentation, and embedded measurement systems. The 16 V maximum supply makes it suitable for systems operating below industrial transient voltages, provided the design does not exceed the device rating.
When laying out a TLV274IN board, keep the unused amplifier inputs biased to a valid common-mode level and place input and feedback components close to the relevant pins. Check the required output swing, load, stability, and supply-bypass requirements against the manufacturer datasheet before committing the design.
直接替換替代品，適用於 TLV274IN — 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。
TLV274ING4
✅ 直接替換📋 參考替代品（不在目錄中）
TLV9154
✅ 直接替換📋 參考替代品（不在目錄中）
TLV274IN 最大額定值與電氣特性
| Number of Channels | 4 circuits |
| Supply Voltage Range | 2.4 V to 16 V |
| Maximum Supply Voltage | 16 V |
| Gain-Bandwidth Product | 3 MHz |
| Slew Rate | 2.4 V/µs |
| 供應電流 | 550 µA per channel |
| Input Noise Voltage Density | 39 nV/Hz |
| Input Bias Current | 1 pA |
| Specified Temperature Range | 0°C to 70°C |
| Commercial Grade Maximum Temperature | 125°C |
| 輸出類型 | Rail-to-rail output |
| Architecture | Voltage-feedback |
| 腳位數 | 14 pins |
| 封裝 | 14-pin PDIP |
| Product Category | Standard general-purpose amplifier |
TLV274IN 14-pin pdip 腳位配置指南
TLV274IN（14-pin pdip 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： TLV274IN.
請參閱 資料表 以查看完整腳位配置。
典型應用
TLV274IN 適用於 6 應用s: Portable Sensor Signal Conditioning, Data-Acquisition Signal Chain, Active Filtering and Control Loops, Industrial Instrumentation, Audio and Low-Level Analog Interfaces, Battery-Powered Embedded Measurement.
Portable Sensor Signal Conditioning
The TLV274IN is a practical fit for portable sensor front ends because four channels can amplify, buffer, and condition signals while each channel is specified at 550 µA supply current. Its 2.4 V to 16 V supply range accommodates low-voltage battery-derived systems, and the 1 pA specified input-bias current helps reduce loading on high-impedance sensors. The 3 MHz bandwidth is sufficient for many moderate-frequency measurement channels, while the rail-to-rail output provides useful signal range on low-voltage rails. Check the actual sensor output, common-mode limits, noise, and settling requirements before finalizing the amplifier gain and filter values.
推薦
Data-Acquisition Signal Chain
Use the TLV274IN as the analog conditioning element ahead of an embedded data-acquisition system. Its four amplifiers can provide input buffering, gain stages, and active filtering without requiring four separate packages. The 3 MHz gain-bandwidth product supports moderate-bandwidth signals, while 39 nV/Hz input-voltage-noise density and 1 pA input-bias current help preserve measurement fidelity for suitable source impedances. The 16 V maximum supply allows connection to higher-voltage analog rails, but designers should verify common-mode range, output swing, stability, and supply bypassing for the selected gain configuration.
推薦
Active Filtering and Control Loops
The TLV274IN can implement moderate-bandwidth active filters and analog control loops when its 3 MHz gain-bandwidth product and 2.4 V/µs slew rate are adequate. Four independent channels make cascading filters or combining multiple control functions practical within a single package. The low 550 µA per-channel supply current is beneficial in portable or distributed instrumentation, while rail-to-rail output improves utilization of low-voltage supply rails. Designers should calculate component tolerances, phase margin, output loading, and settling behavior rather than assuming that the closed-loop bandwidth equals the listed gain-bandwidth product.
推薦
Industrial Instrumentation
The TLV274IN suits low-power industrial instrumentation where four analog channels are needed in a conventional 14-pin PDIP footprint. Its 2.4 V to 16 V supply range and 550 µA per-channel bias current support power-conscious measurement blocks, while the 3 MHz bandwidth handles many sensor and conditioning signals. The commercial temperature specification is 0°C to 70°C in the supplied data, so it should not be assumed suitable for wider industrial environments without a different grade. Validate isolation, surge exposure, grounding, and calibration stability at the system level.
推薦
Audio and Low-Level Analog Interfaces
TLV274IN can be used for low-level audio and analog interface functions when the application does not require the very low noise or high output current of a dedicated audio amplifier. Its rail-to-rail output is useful with low-voltage analog signals, and the 3 MHz bandwidth provides margin for general audio-frequency and control paths. The 2.4 V to 16 V supply range supports compact portable equipment. Before using it in an audio output stage, verify output swing into the required load, distortion, noise bandwidth, stability, and headroom; this part is primarily a general-purpose operational amplifier, not a specified power audio amplifier.
推薦
Battery-Powered Embedded Measurement
The TLV274IN is appropriate for battery-powered embedded measurement when four channels and low channel bias current are valuable. A 2.4 V minimum supply supports compatibility with low-energy rails, while the 550 µA per-channel specification helps engineers estimate the amplifier portion of the power budget. The 1 pA input-bias current is favorable for high-impedance sensors, and the 3 MHz bandwidth can handle many slow-to-moderate-rate analog nodes. Actual battery life depends on duty cycle, load, regulator efficiency, sensor current, and the complete system power-consumption profile.
推薦
推薦產品摘要
工程參考資料，適用於 TLV274IN — 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 | TLV274ING4 | TLV9154 |
|---|---|---|---|
| Number of Channels | 4 | 4 | 4 |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments |
主要差異化特點
- Four low-power channels in one through-hole package (對比TLV274ING4)
- Low-power operation with 1 pA input-bias current (對比TLV9154)
- Moderate-speed signal conditioning with rail-to-rail output (對比TLV274ING4)
設計說明
Budget the amplifier supply current using the verified 550 µA per-channel specification, then add the quiescent current of the regulator, sensor, and surrounding digital circuitry. Estimated: four channels at 550 µA per channel require approximately 2.2 mA before loading and external-circuit effects. This is a design estimate based on the supplied per-channel figure, not a guaranteed worst-case operating current.
Place supply-bypass capacitors close to the power pins and keep each amplifier’s input and feedback traces short. Because the TLV274IN is a through-hole PDIP, route sensitive input nets away from high-current switching nodes and provide a continuous ground return. Check the package-specific pin orientation on the manufacturer pinout before assembling the first board.
Do not treat rail-to-rail output as an unlimited output-current or unlimited load capability. The supplied data does not specify exact output swing versus load, so verify the output-voltage limits against the intended load in the manufacturer datasheet. Also bias unused amplifier inputs to a defined valid potential rather than allowing them to float, because floating inputs can increase noise and create unpredictable behavior.
The 3 MHz gain-bandwidth product is a closed-loop amplifier parameter that must be reconciled with the selected feedback topology and noise gain. Avoid placing excessive capacitance directly on an output or feedback node, and keep sensor leads short when using the 1 pA input-bias-current capability. Validate gain, phase margin, settling, and noise in the final circuit rather than relying only on the headline bandwidth.
合規資訊
The supplied product and distributor data does not explicitly state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status. These fields therefore remain unknown rather than inferred.