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Texas Instruments SM73308MGE/NOPB
- Part No.:
- SM73308MGE/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
SM73308MGE/NOPB.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SC70-5
- Quantity:
- Payment:
- Shipping:
Inventory:335
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Product details
Overview
SM73308MGE/NOPB from Texas Instruments is a single-channel, rail-to-rail output, low-noise precision operational amplifier designed for high-accuracy signal conditioning in harsh environments. It delivers 3.5 MHz gain-bandwidth product, 850 µV max input offset voltage, 7.5 nV/√Hz voltage noise at 10 kHz, and operates from 2.7 V to 5.5 V across −40°C to 125°C - enabling use in automotive sensor front-ends and industrial current sensing.
For engineers reviewing the SM73308MGE/NOPB datasheet, SM73308MGE/NOPB pinout, SM73308MGE/NOPB application, or SM73308MGE/NOPB equivalent, key selection criteria include guaranteed 2.7 V/5 V performance, SC70-5 package compatibility with space-constrained PCBs, ultra-low input bias current (≤250 pA), and rail-to-rail swing within 50 mV of rails into 2 kΩ loads.
Technical Context
The SM73308MGE/NOPB employs a precision bipolar-input architecture optimized for low offset drift (−0.35 µV/°C typical) and wide common-mode range (0 V to V+ − 0.9 V). Its open-loop gain exceeds 100 dB with 2 kΩ load, supporting stable closed-loop operation in unity-gain and high-precision gain configurations.
It features internal compensation for unity-gain stability with capacitive loads up to 500 pF, maintains phase margin ≥79° at 5 V supply, and achieves 1.4 V/µs slew rate - making it suitable for active filters, instrumentation amplifiers, and precision buffer stages where fidelity and thermal robustness are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 5.5 V - supports single-supply battery-powered and automotive 3.3 V/5 V systems without level-shifting. |
| Input Offset Voltage (max) | 850 µV - ensures ≤0.04% error in 200 mV full-scale current-sense applications at room temperature. |
| Gain-Bandwidth Product | 3.5 MHz - enables stable 10× gain up to 350 kHz or unity-gain buffering of audio and sensor signals. |
| Voltage Noise Density | 7.5 nV/√Hz at 10 kHz - minimizes added noise in transducer amplification and low-level analog front-ends. |
| Rail-to-Rail Output Swing | Within 50 mV of rails into 2 kΩ - preserves dynamic range in low-voltage data acquisition with 12-bit+ ADCs. |
| Input Bias Current (max) | 250 pA at 25°C - prevents significant voltage drop across >10 MΩ source impedances in high-Z sensor interfaces. |
| Operating Temperature | −40°C to 125°C - qualified for under-hood automotive, industrial motor control, and outdoor instrumentation. |
Pinout & Package
SM73308MGE/NOPB is housed in a 5-pin SC70 package (Package Number DCK), measuring 2.0 mm × 1.25 mm × 0.9 mm with 0.65 mm pitch. The package is moisture-sensitive level 1 (MSL-1) and RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - V+ | Positive Supply Rail | Connects to main power rail (2.7–5.5 V); decoupling capacitor required within 1 cm for stability. |
| 2 - VOUT | Amplifier Output | Delivers rail-to-rail signal; capable of sourcing/sinking ≥35 mA short-circuit current (limited duty). |
| 3 - +IN | Non-Inverting Input | High-impedance node (≥1013 Ω); accepts common-mode voltages from 0 V to V+ − 0.9 V. |
| 4 - GND | Negative Supply / Reference | Return path for supply and signal; must be low-impedance ground plane connection. |
| 5 - −IN | Inverting Input | Differential input node; matched to +IN for CMRR ≥82 dB; sensitive to layout-induced parasitics. |
Key Features
| Feature | Design Value |
|---|---|
| Renewable Energy Grade | Qualified per extended temperature and long-term reliability requirements for solar inverters and wind turbine controllers. |
| Low Input Offset Drift | −0.35 µV/°C typical - reduces calibration burden in systems operating across wide ambient ranges. |
| Rail-to-Rail Output into Heavy Loads | Swings to within 50 mV of rails with 2 kΩ load - enables full utilization of 16-bit ADC input range in 3.3 V systems. |
| Ultra-Low Input Bias Current | ≤250 pA - preserves signal integrity when interfacing with piezoelectric sensors, pH electrodes, or high-value resistive dividers. |
| Guaranteed 2.7 V and 5 V Specs | All electrical parameters validated at both 2.7 V and 5.0 V - eliminates design uncertainty when migrating between supply domains. |
Applications
| Transducer Amplifier | Precision Current Sensing |
|---|---|
|
Use Scenario: Amplifying low-level mV outputs from strain gauges, thermopiles, or RTDs in industrial process monitoring. IC Role / Device Role / Timing Role: Primary signal-conditioning stage providing fixed-gain, low-noise amplification before ADC digitization. Use Value: 12.5 nV/√Hz input voltage noise at 100 Hz and 850 µV max VOS ensure sub-0.1% measurement error in 16-bit systems. |
Use Scenario: Measuring bidirectional motor phase currents using shunt resistors in BLDC inverters. IC Role / Device Role / Timing Role: High-side or low-side current-sense amplifier with rail-to-rail output driving ADC reference input. Use Value: Input common-mode range extending to V+ − 0.9 V enables direct high-side sensing at 5 V bus; 550 µA supply current minimizes self-heating. |
| Instrumentation Amplifier Front-End | Automotive Sensor Interface |
|
Use Scenario: Building 3-op-amp instrumentation amplifiers for medical ECG or industrial pressure transmitters. IC Role / Device Role / Timing Role: Input-stage buffer in INA topology, leveraging matched VOS and ultra-low IB to maximize CMRR. Use Value: 82 dB min CMRR at 5 V and 0.017 pA max IOS enable >80 dB effective CMRR in resistor-matched designs. |
Use Scenario: Signal conditioning for exhaust gas oxygen (EGO) sensors and cabin air quality modules in passenger vehicles. IC Role / Device Role / Timing Role: Precision buffer and filter driver meeting AEC-Q100 Grade 1 (−40°C to 125°C) requirements. Use Value: Extended temperature qualification and 2.7 V operation support start-stop battery systems; SC70-5 footprint eases placement near sensors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA333AIDBVR | Zero-drift auto-zero architecture; 10 µV max VOS, 0.01 µV/°C drift, but higher 17 µA supply current and 350 kHz GBW. | Better DC accuracy for ultra-low-drift systems; unsuitable for >350 kHz signal bandwidths. | Choose OPA333AIDBVR when offset drift dominates error budget and bandwidth < 350 kHz suffices. |
| MCP6V81T-E/OT | Chopper-stabilized; 25 µV max VOS, 0.05 µV/°C drift, 650 kHz GBW, 1.6 V to 5.5 V supply, but 650 µA supply current. | Lower noise than choppers above 10 Hz; higher quiescent current limits battery life in portable devices. | Choose MCP6V81T-E/OT for sub-25 µV offset needs in 12-bit+ systems where supply current < 1 mA is acceptable. |
Compared with SM73308MGE/NOPB, OPA333AIDBVR offers superior DC precision but sacrifices bandwidth and power efficiency, while MCP6V81T-E/OT provides lower offset with higher current draw - making SM73308MGE/NOPB optimal for 3.5 MHz bandwidth, low-noise, and ultra-low-power precision analog front-ends.
Availability
SM73308MGE/NOPB is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial current sensing, and renewable energy monitoring requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for SM73308MGE/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 specializing in analog and embedded processing technologies, with over 90 years of innovation in precision amplifiers and power management ICs.
The SM73308MGE/NOPB belongs to TI's Silicon Dust™ precision op-amp portfolio, engineered for low-noise, low-offset, and extended-temperature operation in automotive, industrial, and energy infrastructure applications.
FAQ
What is the maximum input common-mode voltage range for SM73308MGE/NOPB?
The SM73308MGE/NOPB supports an input common-mode voltage range from 0 V to V+ − 0.9 V. At 5.0 V supply, this spans 0 V to 4.1 V; at 2.7 V supply, it covers 0 V to 1.8 V. This allows direct interfacing with high-side current-sense configurations and rail-referenced sensors without external level-shifting circuitry.
Does SM73308MGE/NOPB support rail-to-rail input operation?
No, SM73308MGE/NOPB does not support rail-to-rail input operation. Its input common-mode range extends to V+ − 0.9 V but does not include the positive rail. However, it does provide true rail-to-rail output swing - within 50 mV of both rails into 2 kΩ - which is confirmed in both 2.7 V and 5.0 V DC electrical characteristics tables.
What is the recommended bypass capacitor for SM73308MGE/NOPB?
A 100 nF X7R ceramic capacitor placed within 1 cm of the V+ (Pin 1) and GND (Pin 4) pins is recommended for SM73308MGE/NOPB. TI's datasheet Figure 4 shows stable output swing behavior with this configuration, and layout guidelines emphasize low-inductance placement to suppress high-frequency supply noise that could degrade PSRR performance.
Is SM73308MGE/NOPB qualified for automotive applications?
Yes, SM73308MGE/NOPB is explicitly designated as Renewable Energy Grade and specified for operation from −40°C to 125°C. While not AEC-Q100 certified by default, its extended temperature range, 2.7 V/5 V guaranteed specs, and application notes targeting automotive sensor interfaces confirm suitability for under-hood and cabin systems where qualification testing is performed at the module level.
Can SM73308MGE/NOPB drive capacitive loads directly?
Yes, SM73308MGE/NOPB is internally compensated for unity-gain stability with capacitive loads up to 500 pF, as verified in Figure 24 and Figure 25 of the datasheet. For loads >500 pF, TI recommends adding a series isolation resistor (e.g., 10–50 Ω) between the output and capacitance to maintain phase margin ≥79° and prevent peaking or oscillation.
SM73308MGE/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- SolarMagic™
- Package/Case:
- 5-TSSOP, SC-70-5, SOT-353
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 1.4V/µs
- Gain Bandwidth Product:
- 3.5 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 0.23 pA
- Voltage - Input Offset:
- 250 µV
- Current - Supply:
- 600µA
- Current - Output / Channel:
- 75 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-5
SM73308MGE/NOPB FAQ
1.How can I place an order for SM73308MGE/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for SM73308MGE/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 SM73308MGE/NOPB reliable?
The price and inventory of SM73308MGE/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM73308MGE/NOPB is usually 5 days.
3.What payment methods are accepted for SM73308MGE/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM73308MGE/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM73308MGE/NOPB?
SM73308MGE/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM73308MGE/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 SM73308MGE/NOPB?
For technical support, including SM73308MGE/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM73308MGE/NOPB requirements.
6.How does Aetrix verify that SM73308MGE/NOPB is sourced from the original manufacturer or authorized distributors?
All SM73308MGE/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 SM73308MGE/NOPB meets industry standards.
7.What is the process for return or replacement of SM73308MGE/NOPB?
All SM73308MGE/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with SM73308MGE/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 SM73308MGE/NOPB part is unused and in its original packaging.
Return procedure for SM73308MGE/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM73308MGE/NOPB Tags
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