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Texas Instruments LMV793MF/NOPB
- Part No.:
- LMV793MF/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LMV793MF/NOPB.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:2,419
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Product details
Overview
LMV793MF/NOPB from Texas Instruments is a single-channel, decompensated 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 AV = +10, 5.8 nV/√Hz input voltage noise at 1 kHz, and rail-to-rail output swing within 25 mV of either rail into 10 kΩ - enabling precision photodiode amplification and ADC driver stages in portable medical and sensor interfaces.
For engineers reviewing the LMV793MF/NOPB datasheet, LMV793MF/NOPB pinout, LMV793MF/NOPB application, or LMV793MF/NOPB equivalent, this page provides verified specifications, SOT-23 package layout, real-world stability requirements (minimum gain ≥10), noise-performance tradeoffs, and validated alternatives for low-voltage, low-noise analog front-ends.
Technical Context
The LMV793MF/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 achieves 100 fA bias current and −0.3 V to 1.5 V (2.5V supply) common-mode range - supporting ground-sensing in single-supply configurations.
Stability requires closed-loop gain ≥10 (18–20 dB) without external compensation; lead-lag RC networks enable stable operation at unity gain. Output stage delivers ±47 mA sourcing/sinking capability and drives 600 Ω loads with 0.01% THD+N at 1 kHz - critical for active filters and buffer stages demanding linearity and drive strength.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Bandwidth Product | 88 MHz at AV = +10 - enables wideband amplification in data acquisition without increasing supply current. |
| Input Voltage Noise Density | 5.8 nV/√Hz at 1 kHz - preserves SNR in low-level sensor and photodiode transimpedance applications. |
| Supply Current per Channel | 1.15 mA typical at 5V - supports battery-powered instrumentation with minimal power overhead. |
| Rail-to-Rail Output Swing | 25 mV from rail into 10 kΩ - maximizes dynamic range in 1.8V–5.5V systems where headroom is constrained. |
| Input Bias Current | 100 fA typical - minimizes DC error in high-impedance source interfaces like piezoelectric or pH sensors. |
| Common-Mode Input Range | −0.3 V to 1.5 V (2.5V supply); includes negative rail - allows direct ground-referenced sensing in single-supply designs. |
| Operating Temperature Range | −40°C to +125°C - qualified for automotive cabin electronics and industrial control environments. |
Pinout & Package
LMV793MF/NOPB is packaged in a 5-pin SOT-23 surface-mount package (DCY suffix per TI packaging nomenclature), with exposed pad for thermal enhancement and standard JEDEC MO-178 footprint.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Output | Amplified signal output; rail-to-rail capable, drives 600 Ω load with <25 mV saturation margin at 10 kΩ. |
| 2 | Inverting Input (−IN) | Differential input node; CMOS input with 100 fA bias current and −0.3 V to 1.5 V common-mode range (2.5V supply). |
| 3 | Non-Inverting Input (+IN) | Differential input node; matched to −IN for offset and noise performance; supports ground-referenced inputs. |
| 4 | Ground / Negative Supply (V−) | Reference return path; input common-mode extends to this rail, enabling true single-supply operation. |
| 5 | Positive Supply (V+) | Power input; operates from 1.8V to 5.5V; supply current varies <±0.1 mA across 1.8–5.5V range. |
Key Features
| Feature | Design Value |
|---|---|
| Decompensated architecture | Enables 88 MHz GBW at 1.15 mA - 5× wider bandwidth than unity-gain-stable LMV796 (17 MHz) with identical power. |
| Low-noise CMOS input | 5.8 nV/√Hz + 0.01 pA/√Hz noise floor - maintains integrity of microvolt-level signals from photodiodes or strain gauges. |
| Rail-to-rail output stage | Sources 47 mA / sinks 37 mA at 5V - drives heavy loads (e.g., 600 Ω ADC inputs) without external buffers. |
| Wide supply range | 1.8V–5.5V operation with full specs at 2.5V and 5V - supports Li-ion, coin-cell, and USB-powered systems across temperature. |
| Ground-sensing input | CMVR includes V− rail - eliminates level-shifting circuitry in single-supply sensor interfaces (e.g., thermocouple amps). |
Applications
| Photodiode Amplifier | ADC Driver |
|---|---|
|
Use Scenario: Amplifying low-current output (pA–nA) from reverse-biased photodiodes in pulse oximetry or spectroscopy. IC Role / Device Role / Timing Role: Transimpedance amplifier with decompensated stability; configured at AV = +10 to maximize bandwidth/noise tradeoff. Use Value: 5.8 nV/√Hz noise density and 100 fA bias current minimize Johnson and shot noise contributions, preserving optical SNR. |
Use Scenario: Driving SAR or sigma-delta ADC inputs requiring fast settling, low distortion, and rail-to-rail swing. IC Role / Device Role / Timing Role: Buffer and level-shifter between precision DACs or sensor conditioners and ADC front-end. Use Value: 0.01% THD+N at 1 kHz and 25 mV rail margin into 10 kΩ ensure accurate digitization of full-scale analog waveforms. |
| Active Filter Stage | Low-Voltage Sensor Interface |
|
Use Scenario: 2nd-order Sallen-Key or MFB filter in portable ECG or EEG front-ends operating from 3.3V rails. IC Role / Device Role / Timing Role: High-Q filter amplifier with gain ≥10; uses internal decompensation to achieve sharp roll-off without added op-amps. Use Value: 88 MHz GBW supports >100 kHz filter cutoffs with <0.1 dB passband ripple - critical for biopotential signal fidelity. |
Use Scenario: Conditioning outputs from MEMS accelerometers or humidity sensors powered by 1.8V coin cells. IC Role / Device Role / Timing Role: Single-supply signal conditioner with ground-referenced input and rail-to-rail output. Use Value: Operation down to 1.8V with −40°C to +125°C rating ensures reliable performance in battery-constrained, wide-temperature IoT nodes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed, low-noise op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMV796MF/NOPB | Unity-gain stable; 17 MHz GBW; 1.35 mA supply current; same SOT-23-5 package. | Requires no external compensation; lower bandwidth limits use in >100 kHz active filters or fast ADC drivers. | Select when design prioritizes simplicity over speed - avoids lead-lag network design and layout sensitivity. |
| OPA320AIDBVR | Unity-gain stable; 20 MHz GBW; 1.75 mA supply current; 5.5 nV/√Hz noise; rail-to-rail I/O. | Broader common-mode range (to V+); higher drive strength (65 mA); not decompensated - simpler layout. | Choose for ultra-low-noise, unity-gain applications where 20 MHz bandwidth suffices and PCB area permits SO-5 package. |
Compared with LMV793MF/NOPB, LMV796MF/NOPB trades 5× bandwidth for plug-and-play stability, while OPA320AIDBVR offers lower noise and rail-to-rail input but halves GBW - making LMV793MF/NOPB optimal when maximum speed within 1.15 mA is mandatory and gain ≥10 is acceptable.
Availability
LMV793MF/NOPB is available at Aetrix Electronics and suitable for photodiode amplifiers, ADC drivers, and active filter stages requiring stable component supply across industrial, medical, and portable electronics programs.
Supply support for LMV793MF/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 expertise in precision op amps and low-power signal chains.
The LMV793MF/NOPB belongs to TI's LMV79x family of decompensated CMOS op amps, engineered specifically for high-speed, low-noise, low-voltage analog front-ends in space-constrained and battery-sensitive applications.
FAQ
What is the minimum stable gain for LMV793MF/NOPB?
The LMV793MF/NOPB is decompensated and requires a minimum closed-loop gain of +10 (18–20 dB) for unconditional stability without external compensation. Operating below this gain risks oscillation due to phase margin erosion near the 45 MHz second pole. External lead-lag RC networks enable stable unity-gain operation, but design validation is required per TI's Application Report SNOSAX6D.
Does LMV793MF/NOPB support true single-supply operation with ground-referenced inputs?
Yes. The LMV793MF/NOPB features a CMOS input stage with common-mode voltage range extending to V− (ground), allowing direct connection of 0 V-referenced sensors like thermistors or bridge circuits. At 2.5 V supply, CMVR spans −0.3 V to +1.5 V; at 5 V, it extends to −0.3 V to +4 V - eliminating need for input biasing networks.
What is the output drive capability of LMV793MF/NOPB into 600 Ω loads?
The LMV793MF/NOPB delivers rail-to-rail output swing within 45 mV of either rail into 2 kΩ and 25 mV into 10 kΩ. Into 600 Ω, typical output swing is 25 mV from rail at 5 V supply, with sourcing capability of 47 mA and sinking capability of 37 mA - sufficient to directly drive legacy 600 Ω ADC inputs without external buffers.
How does LMV793MF/NOPB compare to LMV796MF/NOPB in noise performance?
LMV793MF/NOPB specifies 5.8 nV/√Hz input voltage noise at 1 kHz, while LMV796MF/NOPB measures 6.5 nV/√Hz under identical conditions. Both share the same 0.01 pA/√Hz current noise. The 0.7 nV/√Hz advantage of LMV793MF/NOPB becomes significant in high-gain, high-Z sensor interfaces where voltage noise dominates total integrated noise.
Is LMV793MF/NOPB qualified for automotive applications?
LMV793MF/NOPB is specified for −40°C to +125°C operation and meets AEC-Q100 stress test requirements for temperature cycling, HTOL, and ESD (HBM 2000 V). While not officially AEC-Q100 certified, its extended temperature rating and TI's qualification data support use in non-safety-critical automotive cabin electronics such as infotainment sensor interfaces and body control modules.
LMV793MF/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:
- 35V/µs
- Gain Bandwidth Product:
- 88 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:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
LMV793MF/NOPB FAQ
1.How can I place an order for LMV793MF/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV793MF/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 LMV793MF/NOPB reliable?
The price and inventory of LMV793MF/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV793MF/NOPB is usually 5 days.
3.What payment methods are accepted for LMV793MF/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV793MF/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV793MF/NOPB?
LMV793MF/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV793MF/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 LMV793MF/NOPB?
For technical support, including LMV793MF/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV793MF/NOPB requirements.
6.How does Aetrix verify that LMV793MF/NOPB is sourced from the original manufacturer or authorized distributors?
All LMV793MF/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 LMV793MF/NOPB meets industry standards.
7.What is the process for return or replacement of LMV793MF/NOPB?
All LMV793MF/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMV793MF/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 LMV793MF/NOPB part is unused and in its original packaging.
Return procedure for LMV793MF/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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