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Texas Instruments LMV796QMF/NOPB
- Part No.:
- LMV796QMF/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LMV796QMF/NOPB.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:3,970
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Product details
Overview
LMV796QMF/NOPB from Texas Instruments is a single-channel, low-noise, CMOS-input operational amplifier optimized for automotive-grade sensor interface and precision signal conditioning. It delivers 5.8 nV/√Hz input voltage noise, 1.15 mA supply current at 5 V, 17 MHz unity-gain bandwidth, rail-to-rail output swing (25 mV from rail @ 10 kΩ), and operates across −40°C to +125°C - enabling high-fidelity amplification in battery-powered automotive sensors and medical instrumentation.
For engineers reviewing the LMV796QMF/NOPB datasheet, LMV796QMF/NOPB pinout, LMV796QMF/NOPB application, or LMV796QMF/NOPB equivalent, key selection criteria include its AEC-Q100 Grade 1 qualification, guaranteed 2.5 V/5.0 V performance, 100 fA input bias current, low 1/f noise corner (400 Hz), and stable operation driving 600 Ω loads with <0.01% THD+N at 1 kHz.
Technical Context
The LMV796QMF/NOPB uses TI's VIP50 CMOS process to achieve ultra-low input bias current (100 fA) and low input-referred voltage noise (5.8 nV/√Hz at 1 kHz), making it suitable for photodiode transimpedance and high-impedance sensor front-ends. Its rail-to-rail output stage employs positive feedback to sustain >40 mA sourcing capability even at 1.8 V supply.
It features a 17 MHz gain-bandwidth product with unity-gain stability, supports supply voltages from 1.8 V to 5.5 V, and includes ground-sensing input common-mode range (down to V−). The device is not recommended for open-loop comparator use due to output stage design constraints.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Noise | 5.8 nV/√Hz at 1 kHz - enables high-SNR amplification of microvolt-level sensor signals without degrading dynamic range. |
| Supply Current | 1.15 mA per channel at 5 V - supports extended battery life in portable automotive and medical devices. |
| Unity-Gain Bandwidth | 17 MHz - allows stable gain-of-10 amplification up to ~1.7 MHz or gain-of-100 up to ~170 kHz for wideband signal chains. |
| Rail-to-Rail Output Swing | 25 mV from rail @ 10 kΩ load - maximizes usable output voltage swing at low supply voltages (e.g., 2.5 V or 3.3 V systems). |
| Input Bias Current | 100 fA typical - preserves signal integrity in high-impedance pH, photodiode, and piezoelectric sensor interfaces. |
| Operating Temperature | −40°C to +125°C - meets automotive under-hood and industrial control environmental requirements. |
| Total Harmonic Distortion | 0.01% @ 1 kHz, 600 Ω load - ensures clean audio and precision analog signal reproduction without spectral contamination. |
Pinout & Package
LMV796QMF/NOPB is housed in a 5-pin SOT-23 package (JEDEC MO-178AA), with exposed pad for thermal enhancement and standard surface-mount footprint.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Output | Amplified signal output node; rail-to-rail capable, drives ≥60 mA sink/source into resistive loads. |
| 2 | Inverting Input (−) | Differential input terminal; accepts signals within common-mode range (−0.3 V to V+ − 0.3 V). |
| 3 | Non-Inverting Input (+) | Differential input terminal; supports ground-referenced sensing in single-supply configurations. |
| 4 | Ground / Negative Supply | Reference node for single-supply operation; connects to system GND or negative rail. |
| 5 | Positive Supply | Power input; operates from 1.8 V to 5.5 V; internal regulation ensures stable biasing across voltage range. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 Qualified | Validated for automotive applications requiring operation from −40°C to +125°C ambient temperature. |
| Low 1/f Noise Corner | 400 Hz - minimizes low-frequency drift and flicker noise in DC-coupled sensor measurement paths. |
| Capacitive Load Tolerance | Stable with up to 120 pF capacitive load in unity-gain configuration - reduces need for external isolation networks. |
| Guaranteed 2.5 V & 5.0 V Performance | Full electrical specifications validated at both 2.5 V and 5.0 V supplies - simplifies design across multiple power domains. |
| Input Common-Mode Range Includes Ground | Enables direct interfacing to grounded sensors (e.g., thermocouples, bridge outputs) without level-shifting circuitry. |
Applications
| Photodiode Amplifier | Medical ECG Front-End |
|---|---|
Use Scenario: Amplifying nanoamp-level photocurrent from silicon photodiodes in automotive rain/light sensors or pulse oximeters. IC Role / Device Role / Timing Role: Transimpedance amplifier converting IPHOTO to VOUT with minimal added noise and maximal bandwidth. Use Value: 5.8 nV/√Hz noise density and 100 fA input bias preserve SNR for weak optical signals; 17 MHz GBW supports fast response to transient light events. |
Use Scenario: Conditioning low-amplitude, high-impedance biopotential signals from dry-electrode ECG leads in portable monitors. IC Role / Device Role / Timing Role: First-stage instrumentation amplifier input buffer with ultra-low input current and DC-coupled accuracy. Use Value: 100 fA bias prevents electrode polarization errors; rail-to-rail output maximizes ADC utilization at 3.3 V supply; −40°C to +125°C rating covers clinical and wearable environments. |
| Automotive Cabin Pressure Sensor | Industrial Bridge Sensor Interface |
Use Scenario: Amplifying millivolt-level output from MEMS-based cabin pressure transducers in HVAC control modules. IC Role / Device Role / Timing Role: Precision DC-coupled gain stage with offset and drift compensation support. Use Value: ±1.35 mV max input offset and −1.0 μV/°C drift ensure stable calibration over vehicle lifetime; AEC-Q100 qualification guarantees reliability in automotive ECUs. |
Use Scenario: Signal conditioning for strain-gauge or load-cell bridges in factory automation weight scales and torque sensors. IC Role / Device Role / Timing Role: Low-noise, low-drift differential amplifier driving 24-bit sigma-delta ADCs. Use Value: 80 dB min CMRR at 0–1.4 V common-mode range rejects bridge excitation noise; 1.15 mA quiescent current enables always-on monitoring in energy-constrained nodes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-noise, CMOS-input op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA376AIDBVR | Lower input voltage noise (4.6 nV/√Hz), higher supply current (760 µA), no AEC-Q100 qualification. | Better for ultra-low-noise lab instrumentation; unsuitable for automotive production due to lack of automotive qualification. | Select when absolute lowest noise dominates over qualification and power; verify thermal stability at 125°C junction. |
| TSV911ILT | Higher input bias current (1 pA), lower GBW (8 MHz), wider supply range (2.7–5.5 V), no 1.8 V operation. | Cost-optimized for consumer-grade sensor interfaces; lacks low-voltage operation and automotive temp range. | Choose for non-automotive, cost-sensitive designs where 1.8 V operation and 125°C operation are unnecessary. |
Compared with OPA376AIDBVR and TSV911ILT, the LMV796QMF/NOPB uniquely combines AEC-Q100 Grade 1 qualification, 1.8 V operation, 100 fA input bias, and 17 MHz bandwidth - making it the only option qualified for automotive under-hood sensor signal chains requiring simultaneous low-noise, low-power, and extended temperature performance.
Availability
LMV796QMF/NOPB is available at Aetrix Electronics and suitable for automotive cabin sensors, portable medical diagnostics, and industrial bridge transducer interfaces requiring stable component supply across long production lifecycles and extreme temperature environments.
Supply support for LMV796QMF/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 decades of automotive-grade IC development and manufacturing expertise.
The LMV796QMF/NOPB belongs to TI's LMV79x low-noise CMOS op amp family, designed specifically for high-accuracy, low-power signal conditioning in automotive, medical, and industrial sensor systems operating from 1.8 V.
FAQ
What is the maximum capacitive load the LMV796QMF/NOPB can drive stably in unity-gain configuration?
The LMV796QMF/NOPB is specified to drive up to 120 pF capacitive load without oscillation in unity-gain follower configuration. This stability margin eliminates the need for external isolation resistors in many PCB layouts. For loads exceeding 120 pF, an isolation resistor (RISO) between the output and load capacitance is recommended to restore phase margin. The LMV796QMF/NOPB datasheet Figure 45 provides design guidance for such cases.
Does the LMV796QMF/NOPB support true 1.8 V operation across its full temperature range?
The LMV796QMF/NOPB is fully specified for operation at 1.8 V supply voltage across 0°C to +125°C ambient temperature. At −40°C to +125°C, the minimum operating supply is 2.0 V. This dual-voltage specification enables flexible use in battery-powered automotive modules that start at 1.8 V (e.g., coin-cell or energy-harvesting systems) while maintaining robustness across full automotive temperature extremes.
Is the LMV796QMF/NOPB pin-compatible with other members of the LMV79x family?
No - the LMV796QMF/NOPB (single-channel, 5-pin SOT-23) is not pin-compatible with the LMV797 (dual-channel, 8-pin VSSOP). Pin compatibility exists only within same-channel-count variants: LMV796/LMV796Q share identical 5-pin SOT-23 pinout, while LMV797 uses a separate 8-pin layout. Swapping between single and dual versions requires PCB redesign.
What is the input common-mode voltage range of the LMV796QMF/NOPB at 5 V supply?
At 5 V supply, the LMV796QMF/NOPB supports an input common-mode voltage range of −0.3 V to +4.0 V (CMRR ≥55 dB) and −0.3 V to +3.7 V (CMRR ≥60 dB). This includes the negative rail (ground in single-supply use), enabling direct connection to grounded sensors like thermocouples and resistive bridges without level-shifting circuitry - a critical feature for precision DC measurements.
Can the LMV796QMF/NOPB be used as a comparator?
The LMV796QMF/NOPB is not recommended for open-loop comparator use. Its output stage uses positive feedback to enhance current drive, which limits slew rate asymmetry and causes unpredictable recovery behavior when overdriven. TI explicitly advises against using the LMV796QMF/NOPB as a comparator. For comparator functions, dedicated devices such as TLV3201 or TLV7031 are appropriate alternatives.
LMV796QMF/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- 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:
- 11.5V/µs
- Gain Bandwidth Product:
- 17 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 0.1 pA
- Voltage - Input Offset:
- 100 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:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
LMV796QMF/NOPB FAQ
1.How can I place an order for LMV796QMF/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV796QMF/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 LMV796QMF/NOPB reliable?
The price and inventory of LMV796QMF/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV796QMF/NOPB is usually 5 days.
3.What payment methods are accepted for LMV796QMF/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV796QMF/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV796QMF/NOPB?
LMV796QMF/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV796QMF/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 LMV796QMF/NOPB?
For technical support, including LMV796QMF/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV796QMF/NOPB requirements.
6.How does Aetrix verify that LMV796QMF/NOPB is sourced from the original manufacturer or authorized distributors?
All LMV796QMF/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 LMV796QMF/NOPB meets industry standards.
7.What is the process for return or replacement of LMV796QMF/NOPB?
All LMV796QMF/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMV796QMF/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 LMV796QMF/NOPB part is unused and in its original packaging.
Return procedure for LMV796QMF/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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