TLV272CD - Dual 3MHz 16V Rail-to-Rail Op Amp | Texas Instruments
Артикул: TLV272CD ✓ Активен| Кол-во | Цена за ед. | Итого |
|---|---|---|
| 1 | $0 | $0,00 |
| 10 | $0 | $0,00 |
| 100 | $0 | $0,00 |
| 500 | $0 | $0,00 |
| 1.000 | $0 | $0,00 |
TLV272CD Обзор
An operational amplifier is a high-gain analog building block used to amplify, buffer, compare, or integrate signals. The TLV272 belongs to the voltage-feedback operational-amplifier hierarchy and combines a wide supply range, low channel current, and rail-to-rail output capability. Rail-to-rail output allows the output to approach the positive or negative supply limit more closely than a conventional output stage, improving dynamic range in low-voltage systems.
Verified device characteristics include 550 uA per channel, 3 MHz bandwidth, 2.4 V/us slew rate, 2.7 V to 16 V operating supply range, 39 nV/Hz input-noise density, and input bias current specified as low as 1 pA. The family is positioned for portable instrumentation, sensor interfaces, audio paths, and general signal conditioning where dual-channel operation reduces package count.
The wide supply range supports both conventional 5 V analog systems and higher-voltage rails, while the 3 MHz bandwidth supports signals beyond audio-band precision-only applications. The 2.4 V/us slew rate helps preserve large-signal response, although the exact output amplitude, load, and frequency must be checked against the manufacturer datasheet before final sizing.
Typical uses include low-power sensor interfaces, buffered analog measurements, audio voltage buffers, active filtering, and general dual-channel conditioning. The SOIC-8 package is suitable for conventional surface-mount PCB assembly, but pin numbering and electrical limits must be verified against the exact TLV272 datasheet.
A key design consideration is that low power and moderate bandwidth do not eliminate the need for stable reference and feedback networks. Place bypass capacitors near the supply pins, use short feedback paths, and verify common-mode, output-swing, noise, and stability requirements against the application. This page consolidates verified manufacturer and distributor information with design-oriented guidance; unsupported details remain explicitly marked for review.
Аналоги без доработки для TLV272CD — тот же корпус, pin-to-pin совместимость. Компоненты в других корпусах, требующие переработки PCB, исключены.
Варианты в этой серии
Модели той же серии, совместимые без доработки с TLV272CD (тот же форм-фактор и посадочное место) — отличается по Operating Temperature Range, Package.
Инструмент быстрого сравнения — выберите альтернативные компоненты для сравнения бок о бок:
TLV272ID
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Открыть даташит →TLV272CD Максимальные параметры и электрические характеристики
| Number of Channels | 2 channels |
| Maximum Supply Voltage | 16 V |
| Рабочее напряжение питания | 2.7 V to 16 V |
| Gain-Bandwidth Product | 3 MHz |
| Slew Rate | 2.4 V/us |
| Ток потребления | 550 uA/channel |
| Input Noise Voltage Density | 39 nV/Hz |
| Input Bias Current | 1 pA specified |
| Тип выхода | Rail-to-rail output |
| Диапазон рабочих температур | -40C to +125C |
| Корпус | 8-SOIC |
| Тип монтажа | Surface Mount |
| Product Type | Dual operational amplifier |
Руководство по цоколевке TLV272CD в корпусе 8-soic
Цоколевка для TLV272CD (корпус 8-soic). Этот аналоговый компонент имеет выводы входа, выхода и питания. Обратитесь к техническому описанию производителя для конфигураций выводов балансировки нуля, коррекции и разрешения. Идеально подходит для схем обработки сигналов и усилителей.
Нет подробных данных о распиновке для TLV272CD.
Обратитесь к даташиту для полной конфигурации выводов.
Типичное применение
TLV272CD подходит для 6 применениеs: Portable Sensor Interface, Audio Voltage Buffer, Active Analog Filter, Battery-Powered Measurement Front End, Industrial Control Signal Conditioning, General Dual-Channel Buffering.
Portable Sensor Interface
The TLV272CD is appropriate for buffering sensor outputs in portable instruments because it combines 2.7 V minimum supply operation with approximately 550 uA per channel and 3 MHz bandwidth. Use one channel to amplify or condition a low-frequency sensor signal and the other for a reference or auxiliary measurement path. The rail-to-rail output can improve available signal headroom in compact systems. Before finalizing, verify the sensor output stays within the input common-mode range, check offset and noise against the measurement resolution, and confirm stability with the actual sensor cable and input capacitance.
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Audio Voltage Buffer
TLV272CD can serve as a dual audio voltage buffer when the design requires modest bandwidth rather than a high-speed audio amplifier. Its 3 MHz gain-bandwidth product and 2.4 V/us slew rate provide useful response for many buffered audio-control paths, while 550 uA per channel favors low-power portable equipment. Place the amplifier in a voltage-follower configuration only after confirming output stability with the selected load. Its approximately 39 nV/Hz input-noise density should also be included in the overall audio noise budget when the source impedance and bandwidth are known.
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Active Analog Filter
The TLV272CD is suitable for active filtering in low-voltage instrumentation because its 3 MHz bandwidth leaves operating range for moderate-gain and moderate-frequency filter sections. The 2.4 V/us slew rate helps reduce distortion for larger signals, while the dual package allows two filter poles or a matched signal path. Select resistor and capacitor values from the desired cutoff and verify the resulting noise gain against the amplifier’s stability characteristics. The supplied data does not state the exact gain-bandwidth distribution or phase margin, so simulation and datasheet curve review remain necessary.
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Battery-Powered Measurement Front End
The TLV272CD fits a battery-powered measurement front end when the required signal bandwidth is moderate and supply current matters. A 2.7 V to 16 V supply range supports multiple portable rails, while approximately 550 uA per channel limits amplifier demand relative to many general-purpose alternatives. The rail-to-rail output can be valuable when the measured signal must use much of the available supply span. Estimate total battery consumption using the exact operating voltage, load current, regulator efficiency, and duty cycle, and verify input offset and bias-current requirements for high-impedance sensors.
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Industrial Control Signal Conditioning
TLV272CD can be used for low- to moderate-bandwidth signal conditioning in industrial control boards when the circuit operates from a verified 2.7 V to 16 V analog rail. The dual-channel arrangement can reduce the number of packages in filtering, comparison, or buffering functions, and the 3 MHz bandwidth is useful for signals above very-low-frequency sensor rates. Industrial suitability still depends on the required temperature grade, noise immunity, common-mode limits, and fault conditions. Confirm those requirements and the exact 8-SOIC footprint in the manufacturer datasheet before releasing a production design.
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General Dual-Channel Buffering
The TLV272CD is practical when a board needs two independent general-purpose amplifier channels in a single 8-SOIC package. It can buffer sensor outputs, support gain stages, or provide complementary analog signal paths, subject to the exact common-mode and output-swing limits. The 550 uA per-channel supply current supports low-power design, and the 3 MHz bandwidth handles many instrumentation and control signals. Keep feedback components close to the amplifier, provide supply bypassing, and test each channel separately because dual packages can still require independent layout and stability analysis.
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Сводка рекомендуемых товаров
Справочные инженерные данные для TLV272CD — сравнение, рекомендации по проектированию и информация о соответствии.
Руководство по выбору
Сравнение с аналогами
| Параметр | Этот товар | TLV272ID |
|---|---|---|
| Package | 8-SOIC | 8-SOIC |
| Brand | Texas Instruments | Texas Instruments |
| Channels | 2 | 2 |
| Output Type | Rail-to-rail output | Rail-to-rail output |
Ключевые отличия
- Dual-channel integration in one package (против TLV272ID)
- 3 MHz bandwidth with 2.4 V/us slew rate (против TLV272ID)
- Low-power rail-to-rail output positioning (против TLV272ID)
Заметки по проектированию
Place the TLV272CD bypass capacitor as close as practical to the supply pins and route the supply current return through a low-impedance ground path. Keep feedback resistors and their associated capacitors close to the relevant amplifier pins, especially in filtering or high-gain circuits. The supplied data confirms an 8-SOIC package but does not provide the exact pin map, so consult the current TI pin configuration diagram before assigning traces.
Do not assume that 3 MHz bandwidth guarantees usable closed-loop bandwidth in every circuit. Gain, noise gain, load capacitance, source resistance, and supply voltage can reduce stability or alter frequency response. Simulate the intended filter or gain stage and check the manufacturer’s stability and output-capacitance guidance, especially when driving long sensor cables or capacitive ADC inputs.
Estimated power dissipation for a dual amplifier is approximately P = 2 × Ichannel × Vsupply when both channels are operating at the stated channel current and neglecting load current. Using the verified 550 uA/channel figure and a 5 V supply gives about 5.5 mW total amplifier supply power; actual dissipation and source current depend on operating state, output load, and regulator efficiency. Verify thermal limits and battery-life calculations with the final load profile.
The verified data identifies rail-to-rail output, but it does not establish rail-to-rail input, exact input common-mode limits, or guaranteed output swing. Do not allow sensor inputs to exceed the input range or assume full supply-rail output under every load. Review offset voltage, input bias current, noise, output-current capability, and absolute maximum ratings in the TLV272 datasheet before final schematic approval.
Информация о соответствии
The supplied verified data does not state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status for TLV272CD.
