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Texas Instruments SM73302MF/NOPB
- Part No.:
- SM73302MF/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
SM73302MF/NOPB.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:1,514
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Product details
Overview
SM73302MF/NOPB from Texas Instruments is a decompensated, precision CMOS-input operational amplifier optimized for low-noise, high-speed signal conditioning in 1.8V–5.5V systems. It delivers 88 MHz gain bandwidth at G = +10, 5.8 nV/√Hz input voltage noise at 1 kHz, and rail-to-rail output swing within 25 mV of either rail (10 kΩ load), enabling high-fidelity photodiode amplification and ADC driver applications.
For engineers reviewing the SM73302MF/NOPB datasheet, SM73302MF/NOPB pinout, SM73302MF/NOPB application, or SM73302MF/NOPB equivalent, key selection considerations include its minimum stable gain of +10, 1.15 mA supply current at 5V, −40°C to +125°C operating range, and SOT-23-5 package compatibility with space-constrained sensor front-ends and portable instrumentation.
Technical Context
The SM73302MF/NOPB employs a decompensated two-pole architecture with dominant pole at 1.6 kHz and second pole at 45 MHz, enabling 88 MHz GBW while maintaining 1.15 mA quiescent current. Its CMOS input stage provides 100 fA typical input bias current and ground-sensing common-mode range (−0.3 V to VS − 0.3 V).
Stability requires closed-loop gain ≥ +10 or external lead-lag compensation; unity-gain operation is not supported. Rail-to-rail output uses positive-feedback-enhanced drive capable of sourcing >40 mA at 1.8V, but limits open-loop comparator use due to internal output-stage optimization.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Bandwidth Product | 88 MHz at G = +10 - enables wideband active filters and fast-settling ADC buffers without increasing supply current. |
| Input Voltage Noise Density | 5.8 nV/√Hz at 1 kHz - preserves SNR in low-level sensor signals such as photodiode transimpedance stages. |
| Supply Current | 1.15 mA typical at 5V - supports battery-powered instrumentation with minimal power overhead. |
| Input Bias Current | 100 fA typical - minimizes DC error in high-impedance source interfaces (e.g., pH electrodes, piezoelectric sensors). |
| Rail-to-Rail Output Swing | 25 mV from rail (10 kΩ) - maximizes dynamic range in low-voltage (1.8V–2.5V) single-supply systems. |
| Operating Temperature Range | −40°C to +125°C - qualified for automotive under-hood and industrial control environments. |
| Input Offset Voltage (max) | ±150 µV at 5V - ensures <1 LSB error in 16-bit ADC interface designs with gain ≥10. |
Pinout & Package
SM73302MF/NOPB is housed in a 5-pin SOT-23 package (DBV), with exposed pad not electrically connected. The package measures 2.9 mm × 1.6 mm × 1.15 mm and is optimized for thermal performance on standard PCBs (θJA = 180°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - OUTPUT | Amplified output node | Delivers rail-to-rail voltage swing; drives loads down to 600 Ω with <0.04% THD+N at 1 kHz. |
| 2 - V− | Negative supply rail | Reference for single-supply operation (0 V) or dual-supply negative rail; supports ground-sensing inputs. |
| 3 - +IN | Non-inverting input | CMOS input with −0.3 V to (V+ − 0.3 V) common-mode range; enables direct connection to grounded sensors. |
| 4 - −IN | Inverting input | Differential input terminal; used in transimpedance, inverting amplifier, and active filter configurations. |
| 5 - V+ | Positive supply rail | Accepts 1.8 V to 5.5 V; regulates internal biasing and output stage headroom; 1.8 V operation valid 0°C–125°C. |
Key Features
| Feature | Design Value |
|---|---|
| Decompensated architecture | Enables 5× higher bandwidth than unity-gain-stable equivalents (e.g., LMP7715) without increased power consumption. |
| Renewable energy grade qualification | Validated for long-term reliability in solar inverter monitoring, wind turbine sensor nodes, and battery management systems. |
| Low-voltage rail-to-rail output | Maintains >95% output swing at 1.8 V supply, critical for extending battery life in portable medical and environmental sensors. |
| Ultra-low input current noise | 0.01 pA/√Hz at 1 kHz - reduces Johnson-Nyquist noise contribution in high-Z transducer interfaces. |
| Lead-lag compensation support | External RC network enables stable operation at gains < +10 while preserving slew rate advantage over unity-gain op amps. |
Applications
| Photodiode Amplifier | ADC Driver |
|---|---|
|
Use Scenario: High-gain transimpedance amplification of weak photocurrents from silicon PIN diodes in spectrophotometers. IC Role / Device Role / Timing Role: Precision current-to-voltage converter with low input capacitance and 5.8 nV/√Hz noise floor. Use Value: Enables sub-picoampere resolution without cooling or chopper stabilization, reducing system BOM cost and board area. |
Use Scenario: Driving SAR and sigma-delta ADC inputs in portable data loggers with 16+ bit ENOB requirements. IC Role / Device Role / Timing Role: Low-distortion, fast-settling buffer with 35 V/µs slew rate and 0.01% THD+N at 1 kHz. Use Value: Eliminates acquisition-time bottlenecks and maintains linearity across full-scale input range at 1 MSPS sampling rates. |
| Active Filter Stage | Medical Sensor Interface |
|
Use Scenario: 4th-order low-pass filtering in EEG front-end analog signal chains to suppress 50/60 Hz interference. IC Role / Device Role / Timing Role: High-Q, low-noise gain stage in multiple-feedback (MFB) topology with 88 MHz GBW headroom. Use Value: Achieves >80 dB stopband attenuation at 120 Hz while contributing <0.5 µV RMS integrated noise in 0.5–100 Hz band. |
Use Scenario: Front-end amplification of microvolt-level ECG and EMG signals in wearable patient monitors. IC Role / Device Role / Timing Role: First-stage instrumentation amplifier with CMOS input, ±150 µV max offset, and 100 fA bias current. Use Value: Minimizes electrode polarization error and baseline drift over multi-hour monitoring sessions at body temperature. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision, low-noise operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMP7715MM/NOPB | Unity-gain stable; 17 MHz GBW; 7.2 nV/√Hz noise; 1.3 mA supply current. | Supports G = +1 without compensation; lower bandwidth limits high-frequency filter design flexibility. | Select when simplicity of unity-gain configuration outweighs need for >40 MHz closed-loop bandwidth. |
| OPA377AIDBVR | Unity-gain stable; 9 MHz GBW; 7.5 nV/√Hz noise; 0.76 mA supply current; wider VS range (2.2–5.5 V). | Lower power and cost; insufficient bandwidth for >100 kHz active filters or fast ADC drivers. | Select for ultra-low-power, cost-sensitive applications where bandwidth ≤10 MHz is acceptable. |
Compared with LMP7715MM/NOPB and OPA377AIDBVR, SM73302MF/NOPB delivers 5× higher bandwidth at comparable current, making it optimal for high-speed, low-noise signal chains where external compensation is feasible and layout space permits.
Availability
SM73302MF/NOPB is available at Aetrix Electronics and suitable for photodiode amplifiers, ADC drivers, and active filter applications requiring stable component supply, extended temperature operation, and low-noise performance in compact SOT-23 packages.
Supply support for SM73302MF/NOPB includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader delivering analog and embedded processing solutions, with decades of expertise in precision amplifiers and signal chain ICs.
The SM73302MF/NOPB belongs to TI's renewable-energy-grade precision op amp family, engineered for high-accuracy, low-power sensing in harsh-environment instrumentation and energy-monitoring systems.
FAQ
What is the minimum stable gain for SM73302MF/NOPB?
The SM73302MF/NOPB requires a minimum closed-loop gain of +10 for unconditional stability without external compensation. This decompensated design enables its 88 MHz gain bandwidth while maintaining 1.15 mA supply current. Operating below G = +10 necessitates lead-lag compensation using an external RC network, as detailed in the TI application note SNOSB93A.
Does SM73302MF/NOPB support 1.8V supply operation across its full temperature range?
SM73302MF/NOPB operates at 1.8V supply voltage, but only over the 0°C to +125°C ambient temperature range per its Operating Ratings table. For operation from −40°C to +125°C, the minimum supply voltage is 2.0V. This distinction is critical for automotive or industrial applications requiring extended cold-start functionality.
Can SM73302MF/NOPB be used as a comparator?
No - SM73302MF/NOPB is not recommended for open-loop comparator use. Its rail-to-rail output stage incorporates positive feedback to enhance drive strength, which compromises phase margin and causes unpredictable propagation delay and output saturation behavior when operated without feedback. Dedicated comparators such as TLV3201 should be used instead.
What is the input common-mode voltage range for SM73302MF/NOPB?
The input common-mode voltage range for SM73302MF/NOPB extends from −0.3 V to (V+ − 0.3 V), supporting ground-sensing operation in single-supply configurations. At 5V supply, this spans −0.3 V to +4.7 V; at 1.8V supply, it covers −0.3 V to +1.5 V. This feature enables direct interfacing with 0 V-referenced sensors like thermocouples and bridge transducers.
How does SM73302MF/NOPB achieve low input bias current?
SM73302MF/NOPB achieves 100 fA typical input bias current via a proprietary CMOS input stage fabricated on TI's VIP50 process. This architecture eliminates junction leakage paths present in bipolar-input op amps, enabling high-impedance sensor interfaces (e.g., pH electrodes, capacitive touch) without significant DC offset drift or signal loading errors.
SM73302MF/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- SolarMagic™
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 35V/µs
- Gain Bandwidth Product:
- 88 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 0.1 pA
- Voltage - Input Offset:
- 10 µV
- Current - Supply:
- 1.15mA
- Current - Output / Channel:
- 60 mA
- Voltage - Supply Span (Min):
- 1.8 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
SM73302MF/NOPB FAQ
1.How can I place an order for SM73302MF/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for SM73302MF/NOPB on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for SM73302MF/NOPB reliable?
The price and inventory of SM73302MF/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM73302MF/NOPB is usually 5 days.
3.What payment methods are accepted for SM73302MF/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM73302MF/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM73302MF/NOPB?
SM73302MF/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM73302MF/NOPB order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for SM73302MF/NOPB?
For technical support, including SM73302MF/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM73302MF/NOPB requirements.
6.How does Aetrix verify that SM73302MF/NOPB is sourced from the original manufacturer or authorized distributors?
All SM73302MF/NOPB products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that SM73302MF/NOPB meets industry standards.
7.What is the process for return or replacement of SM73302MF/NOPB?
All SM73302MF/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with SM73302MF/NOPB, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The SM73302MF/NOPB part is unused and in its original packaging.
Return procedure for SM73302MF/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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