TLV9051SIDBVR - 5.5V, 5MHz, RRIO Op Amp | Texas Instruments
Teilenummer: TLV9051SIDBVR ✓ Aktiv| Menge | Stückpreis | Gesamt |
|---|---|---|
| 1 | $1.1 | $1,10 |
| 10 | $0.99 | $9,90 |
| 100 | $0.78 | $78,00 |
| 500 | $0.62 | $310,00 |
| 1.000 | $0.49 | $490,00 |
| 3.000 | $0.42 | $1.260,00 |
TLV9051SIDBVR Übersicht
An operational amplifier (op amp) is a high-gain DC-coupled electronic voltage amplifier with differential inputs and a single-ended output. RRIO op amps add the ability to accept input signals that swing to both supply rails and produce output swings within millivolts of either rail, making them ideal for low-voltage single-supply designs. The TLV9051 sits in the op amp -> amplifier IC -> analog IC -> semiconductor taxonomy and belongs to the cost-optimized RRIO family that trades raw precision for speed-per-mW efficiency.
Key features include an enable/shutdown pin on selected orderings, EMI-hardened inputs, 2 pA low input bias current, and an internal RF/EMI filter that rejects out-of-band interference. The 5 MHz bandwidth and 15 V/μs slew rate support closed-loop gains up to roughly 20 without compromising small-signal response, while rail-to-rail operation maximizes dynamic range in 1.8 V to 5.5 V systems.
The TLV9051 uses a CMOS input stage for low bias current (2 pA) and a class-AB output stage for rail-to-rail swing. It is unity-gain stable with 1 nF capacitive loads (when configured with the proper feedback network per the application notes), which simplifies buffer and ADC-driver designs. The SOT-23-6 footprint enables compact PCB layouts in space-constrained cost-sensitive products.
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TLV9051IDBVR
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TLV9051SIDBVR Grenzwerte & elektrische Eigenschaften
| Amplifier Type | General Purpose / RRIO |
| Number of Channels | 1 (Single) |
| Supply Voltage Range | 1.8 V to 5.5 V |
| Unity-Gain Bandwidth | 5 MHz |
| Slew Rate | 15 V/μs |
| Input Offset Voltage (typ) | ±0.33 mV |
| Quiescent Current (typ per channel) | 330 μA |
| Input Bias Current | 2 pA |
| Broadband Input Voltage Noise | 15 nV/√Hz |
| Input/Output Swing | Rail-to-Rail In/Out (RRIO) |
| Betriebstemperaturbereich | -40 °C to +125 °C |
| Gehäuse | SOT-23-6 (DBV) |
| Pin-Anzahl | 6 |
| Montageart | Surface Mount |
| MSL-Level | 2 (1 year) |
| RoHS-Status | Compliant |
| Gain Stability | Unity-Gain Stable |
TLV9051SIDBVR Pin-Konfiguration
| Pin 1 | OUT — Amplifier output |
| Pin 2 | V- — Negative supply (or GND on single-supply) |
| Pin 3 | IN+ — Non-inverting input |
| Pin 4 | IN- — Inverting input |
| Pin 5 | NC — No connect (see datasheet for shutdown pin variants) |
| Pin 6 | V+ — Positive supply |
Typische Anwendungen
TLV9051SIDBVR ist geeignet für 6 Anwendungs: Battery-Powered IoT Sensor Signal Conditioning, Portable Consumer Audio Output Buffer, 12-bit SAR ADC Input Driver, Active Filter for Motor Control Feedback, Transducer / Photodiode Amplifier, General-Purpose Comparator (Poor Man's).
Battery-Powered IoT Sensor Signal Conditioning
The TLV9051SIDBVR fits IoT sensor conditioning because it operates from a single 1.8 V to 5.5 V rail (matching coin-cell or Li-ion sources), draws only 330 μA of quiescent current, and swings rail-to-rail to preserve resolution at 1.8 V. Typical circuit topology places the op amp in a non-inverting gain-of-10 configuration between a wheatstone-bridge sensor and a low-power ADC, where its 5 MHz GBW eliminates first-pole concerns for sensor bandwidths under 50 kHz. Compared with a zero-drift chopper amplifier, the TLV9051 costs less and offers 3x the bandwidth at the trade-off of higher offset drift.
Empfohlen
Portable Consumer Audio Output Buffer
The TLV9051SIDBVR serves as an audio output buffer because its 15 V/μs slew rate cleanly reproduces audio-band signals up to 20 kHz with a 5 V full-scale transition in 0.33 μs, well below the human-audible distortion threshold. The rail-to-rail output reaches within tens of millivolts of a 3.3 V headset amp rail, maximizing headphone loudness on a single lithium cell. Engineers typically place the op amp between the audio DAC and a class-D modulator, where its 15 nV/√Hz broadband noise keeps the noise floor below 100 dBV. A key performance consideration is capacitive load: per the datasheet, the part remains stable up to 1 nF when configured with the recommended feedback network.
Empfohlen
12-bit SAR ADC Input Driver
The TLV9051SIDBVR drives 12-bit SAR ADCs because its 5 MHz GBW provides fast settling to 12-bit (0.5 LSB) accuracy within microsecond acquisition windows at 1 MSPS, and the 15 V/μs slew rate tracks large step inputs without slewing-induced distortion. In a multi-muxed data-acquisition topology, the op amp sits between an analog mux and the ADC input pin, where rail-to-rail output swing maximizes the input range on 3.3 V or 5 V rails. The benefit is a cost-optimized ADC front-end with 70 percent less power than legacy 5 MHz bipolar op amps, at the trade-off of 2 pA pA-level bias current versus picoampere-level choppers.
Empfohlen
Active Filter for Motor Control Feedback
The TLV9051SIDBVR is a popular active filter in motor current/voltage feedback loops because its 5 MHz bandwidth is well in excess of the typical 100 kHz PWM ripple spectrum, providing >40 dB of attenuation at the fundamental switching frequency. The low 15 nV/√Hz noise ensures the filtered current-sense signal does not inject measurable jitter into the FOC algorithm. Typical topology is a Sallen-Key low-pass filter with fc = 20 kHz, where the op amp's rail-to-rail swing preserves the full dynamic range of a 3.3 V MCU ADC. Compared with faster op amps, the TLV9051 saves 30 to 50 percent of the BOM cost.
Empfohlen
Transducer / Photodiode Amplifier
The TLV9051SIDBVR fits transducer and photodiode amplification front-ends because its 2 pA low input bias current does not bias-shift the high-impedance source, and its 15 nV/√Hz broadband noise keeps the SNR floor well above typical photodiode dark-current noise. In a transimpedance configuration with feedback resistor Rf in the 100 kΩ to 1 MΩ range, the op amp delivers a usable -3 dB bandwidth of several hundred kHz — well matched to pulse-oximetry and proximity-sensing bandwidths. The 1.8 V minimum supply lets the same op amp run on a coin-cell for wearable photoplethysmography (PPG) sensors.
Empfohlen
General-Purpose Comparator (Poor Man's)
The TLV9051SIDBVR is sometimes used as a low-cost comparator because its RRIO inputs and 5 V/μs propagation support threshold detection up to a few hundred kHz without external hysteresis. In a touch-button or limit-detect topology, the op amp's output saturates within microseconds of the input crossing the threshold, making it a viable alternative to a dedicated comparator in cost-sensitive designs. The trade-off compared with a true comparator is much higher quiescent current (330 μA vs 1 μA typical for a comparator) and slower propagation, so the TLV9051 should only be used as a comparator in very-low-frequency applications.
Empfohlen
Zusammenfassung der empfohlenen Produkte
Technische Referenzdaten für TLV9051SIDBVR – Vergleich, Designhinweise und Compliance-Informationen.
Auswahlhilfe
Vergleich mit Alternativen
| Parameter | Dieses Produkt | TLV9051IDBVR | TLV9052IDGKR |
|---|---|---|---|
| Package | SOT-23-6 (DBV) | SOT-23-6 (DBV) - same | MSOP-8 (DGK) - different |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments |
| Channels | 1 | 1 | 2 |
| Supply Voltage Range | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V |
| Unity-Gain Bandwidth | 5 MHz | 5 MHz | 5 MHz |
| Slew Rate | 15 V/μs | 15 V/μs | 15 V/μs |
| Quiescent Current / channel | 330 μA | 330 μA | 330 μA |
| Input Offset Voltage (typ) | ±0.33 mV | ±0.33 mV | ±0.33 mV |
| Input/Output Swing | RRIO | RRIO | RRIO |
| Pin Count | 6 | 6 | 8 |
Wichtigste Unterscheidungsmerkmale
- 5 MHz bandwidth at 330 μA quiescent current — best-in-class MHz/μA ratio (vs. TLV9002 (TI, 1 MHz RRIO, SOT-23-8))
- Rail-to-rail output at 1.8 V supply maximizes dynamic range (vs. TLV2370 (TI, 3 MHz, NOT RRIO))
- 15 V/μs slew rate preserves audio-band fidelity (vs. MCP6001 (Microchip, 1 MHz RRIO, SOT-23-5))
Designhinweise
The TLV9051SIDBVR operates from 1.8 V to 5.5 V and draws 330 μA typical per channel. Decouple V+ with a 0.1 μF X7R ceramic placed within 2 mm of pin 6, with a bulk 1 μF to 10 μF tantalum or ceramic providing low-impedance energy for transient load steps. Estimated load transient response: with 330 μA quiescent plus load steps up to several mA, a 1 μF bulk cap holds the rail within 30 mV during a 1 mA load step. Avoid using a pi-filter with inductors in low-current paths; the 330 μA quiescent current cannot drive the inductor's DC impedance without significant voltage drop.
Lay out the SOT-23-6 (DBV) footprint with the standard TI recommended land pattern (0.95 mm × 1.6 mm pads on 0.95 mm pitch). Keep trace impedance low on the supply rail to avoid inductive ringing during output transitions. Place the input traces away from the output trace to minimize positive feedback — the TLV9051 can oscillate if input and output trace coupling exceeds 1 pF. Estimated required clearance: 1 mm minimum, with the input resistor network placed within 3 mm of the inverting input pin to keep parasitic capacitance below 5 pF.
Do not expect the TLV9051SIDBVR to drive unlimited capacitive loads — although unity-gain stable, the datasheet recommends keeping CL ≤ 1 nF for full bandwidth. For larger capacitor loads (e.g., 10 nF to 100 nF at the ADC input), insert a 5 Ω to 50 Ω series resistor between the output and the capacitor to isolate the op amp from the capacitive pole. Another pitfall: the 'S' order suffix on TLV9051SIDBVR denotes the tape-and-reel orientation, not a shutdown variant — for shutdown versions check the TLV906x or TLV900x families. Always cross-reference the SOT-23-6 pinout figure in the datasheet because a TI E2E thread documented that two SOT-23-6 pinout conventions have appeared in the wild.
Compliance-Informationen
RoHS compliant per TI product page. No AEC-Q100 automotive grade — for automotive, use the TLV9051-Q1 variant. Lead-free and halogen-free per TI environmental compliance data.
