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Texas Instruments LMV793MAX/NOPB
- Part No.:
- LMV793MAX/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LMV793MAX/NOPB.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,510
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Product details
Overview
LMV793MAX/NOPB from Texas Instruments is a single-channel, decompensated CMOS-input operational amplifier optimized for high-speed, low-noise 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, 1.15 mA supply current, rail-to-rail output swing within 25 mV of either rail (at 10 kΩ), and operates across −40°C to +125°C - enabling precision photodiode amplification and ADC driver stages in portable medical sensors.
For engineers reviewing the LMV793MAX/NOPB datasheet, LMV793MAX/NOPB pinout, LMV793MAX/NOPB application, or LMV793MAX/NOPB equivalent, key selection criteria include its minimum stable gain of 10 V/V, CMOS input bias current ≤100 fA, 2.5V/5V performance validation, THD+N ≤0.01% at 1 kHz into 600 Ω, and SOT-23-5 package compatibility with space-constrained analog front-ends.
Technical Context
The LMV793MAX/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 open-loop gain exceeds 98 dB at 25°C with 10 kΩ load and exhibits 51 MHz unity-gain frequency - distinct from unity-gain-stable counterparts like LMV796 (17 MHz GBW).
Stability requires closed-loop gain ≥10 V/V or external lead-lag compensation (RC network); it is not rated for comparator use due to output stage design. Input common-mode range extends to V− (ground-sensing), and rail-to-rail output drives ≥45 mA sourcing/sinking capability at 1.8V supply.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Bandwidth Product | 88 MHz at G = +10 - enables wideband filtering and high-speed buffering without increasing supply current. |
| Input Voltage Noise Density | 5.8 nV/√Hz at 1 kHz - preserves SNR in low-level sensor interfaces like photodiodes and strain gauges. |
| Input Bias Current | ≤100 fA at 125°C - minimizes DC error in high-impedance transimpedance amplifier feedback networks. |
| Rail-to-Rail Output Swing | 25 mV from rail at 10 kΩ - maximizes dynamic range in 2.5V/3.3V data acquisition systems. |
| Supply Voltage Range | 1.8V to 5.5V - supports direct battery operation (e.g., single Li-ion or dual alkaline) with full spec compliance. |
| Operating Temperature | −40°C to +125°C - qualified for automotive cabin electronics and industrial motor control feedback loops. |
| Total Harmonic Distortion + Noise | 0.01% at 1 kHz, 600 Ω - ensures fidelity in audio preamplifier and active filter stages. |
Pinout & Package
LMV793MAX/NOPB is housed in a 5-pin SOT-23 package (JEDEC MO-178AA), with exposed pad omitted. Pin 1 is marked via dot; device orientation follows standard TI SOT-23 top view.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting Input (−IN) | Differential input node; connects to feedback network in inverting configurations. |
| 2 | Non-Inverting Input (+IN) | Differential input node; referenced to ground or bias voltage in non-inverting gain stages. |
| 3 | Output (OUT) | Class-AB rail-to-rail output capable of sourcing 45 mA / sinking 21 mA at 5V supply. |
| 4 | Ground (GND) | Power return path; must be low-impedance connection to minimize PSRR degradation. |
| 5 | Supply Voltage (V+) | Positive supply rail; accepts 1.8V–5.5V; decoupling capacitor required within 1 cm of pin. |
Key Features
| Feature | Design Value |
|---|---|
| Decompensated architecture | Enables 5× higher bandwidth than unity-gain-stable LMV796 (88 MHz vs. 17 MHz) without extra power. |
| CMOS input stage | Delivers femtoampere-level input bias current (≤100 fA), critical for >100 MΩ sensor impedance interfaces. |
| Rail-to-rail output | Swings within 25 mV of supply rails at 10 kΩ, preserving >95% of available voltage headroom at 2.5V supply. |
| Low-voltage operation | Full electrical specs guaranteed down to 1.8V (0°C to 125°C), supporting energy-harvesting and ultra-low-power IoT nodes. |
| Ground-sensing input | Common-mode range includes V−, enabling direct single-supply measurement of signals referenced to ground. |
Applications
| Photodiode Amplifier | ADC Driver |
|---|---|
Use Scenario: Amplifying weak current from silicon photodiodes in pulse oximetry or environmental light sensors. IC Role / Device Role / Timing Role: Transimpedance amplifier with 5.8 nV/√Hz noise floor and ≤100 fA input bias to maximize SNR at sub-nA photocurrent levels. Use Value: Enables detection of <100 pA photocurrents with <0.1% linearity error over temperature, reducing need for post-acquisition calibration. |
Use Scenario: Driving SAR or sigma-delta ADC inputs in portable data loggers with 16+ bit resolution. IC Role / Device Role / Timing Role: High-fidelity buffer with 0.01% THD+N and 35 V/μs slew rate to settle 16-bit codes within 100 ns. Use Value: Eliminates aperture jitter-induced quantization error, achieving effective number of bits (ENOB) ≥15.2 at 100 kSPS. |
| Active Filter Stage | Low-Voltage Sensor Interface |
Use Scenario: 2nd-order Sallen-Key anti-aliasing filter in battery-powered ECG front-end. IC Role / Device Role / Timing Role: Unity-gain stable configuration using lead-lag compensation to maintain 88 MHz GBW-derived Q-factor accuracy. Use Value: Achieves ±0.5 dB passband flatness up to 200 kHz on 3.3V supply, meeting AAMI EC11 clinical requirements. |
Use Scenario: Conditioning output from MEMS accelerometers or RTD bridges in wearable health monitors. IC Role / Device Role / Timing Role: Precision gain stage with 1.8V operation, −40°C to +125°C offset drift ≤1.0 μV/°C, and rail-to-rail output. Use Value: Reduces system BOM by eliminating level-shifting circuitry and enables direct connection to 1.8V microcontroller ADCs. |
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 |
|---|---|---|---|
| LMV796MFX/NOPB | Unity-gain stable; 17 MHz GBW; 1.35 mA supply current; same SOT-23-5 package. | Preferred where G ≤ 5 is required without external compensation; lower bandwidth limits >100 kHz signal chain use. | Select when design cannot accommodate lead-lag compensation or requires guaranteed stability at G = +1. |
| OPA320AIDBVR | Unity-gain stable; 20 MHz GBW; 1.8 nV/√Hz noise; 1.15 mA supply current; same SOT-23-5 footprint. | Better noise performance but lower bandwidth; optimized for precision DC-coupled applications over wideband AC. | Choose for µV-level offset-critical applications (e.g., weigh scales) where 88 MHz bandwidth is unnecessary. |
Compared with LMV793MAX/NOPB, LMV796MFX/NOPB trades 5× bandwidth for plug-and-play stability, while OPA320AIDBVR prioritizes ultra-low noise over speed - making LMV793MAX/NOPB the sole option when both 88 MHz GBW and ≤6 nV/√Hz noise are mandatory in a 5-pin SOT-23.
Availability
LMV793MAX/NOPB is available at Aetrix Electronics and suitable for photodiode amplifiers, ADC drivers, and active filter stages requiring stable component supply across automotive, industrial, and portable medical product lifecycles.
Supply support for LMV793MAX/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 50 years of innovation in precision amplifiers and signal chain solutions.
The LMV793MAX/NOPB belongs to TI's LMV79x family of decompensated CMOS op amps, engineered specifically for high-bandwidth, low-noise, low-voltage signal conditioning in battery-powered instrumentation and sensor interface applications.
FAQ
What is the minimum stable gain for LMV793MAX/NOPB?
The LMV793MAX/NOPB requires a minimum closed-loop gain of +10 V/V for unconditional stability without external compensation. This decompensated design enables its 88 MHz gain bandwidth while maintaining 1.15 mA quiescent current. For gains below +10, a lead-lag RC network must be added to ensure ≥45° phase margin - details are provided in TI's SNOSAX6D datasheet Figure 44 and Section 10.
Does LMV793MAX/NOPB support true rail-to-rail input?
No, LMV793MAX/NOPB does not feature rail-to-rail input. Its input common-mode voltage range extends to the negative rail (V−) but only to 1.5 V below V+ at 2.5V supply and 4 V below V+ at 5V supply - as specified in the CMVR parameter. The device is ground-sensing, making it suitable for single-supply applications where the signal references V−, but it cannot accept inputs near V+ without clipping.
Can LMV793MAX/NOPB operate from a 1.8V supply?
Yes, LMV793MAX/NOPB is fully specified for operation at 1.8V supply across 0°C to +125°C ambient temperature. Electrical characteristics including input offset voltage, PSRR, CMRR, and output swing are validated at 1.8V per TI's SNOSAX6D datasheet Section 6.2. This enables direct integration into energy-harvesting systems and ultra-low-power IoT sensor nodes without voltage boosting.
What is the input voltage noise density of LMV793MAX/NOPB at 1 kHz?
The input voltage noise density of LMV793MAX/NOPB is 5.8 nV/√Hz at 1 kHz under 5V supply conditions, as measured and guaranteed in the "5V Electrical Characteristics" table of the official datasheet (SNOSAX6D, Rev. March 2013). At 2.5V supply, it rises slightly to 6.2 nV/√Hz - a value confirmed in the same document's 2.5V characterization section.
Is LMV793MAX/NOPB pin-compatible with LMV794?
No, LMV793MAX/NOPB is not pin-compatible with LMV794. LMV793MAX/NOPB uses a 5-pin SOT-23 package (V+, −IN, +IN, OUT, GND), while LMV794 is a dual-channel device offered only in 8-pin SOIC or VSSOP packages with independent input/output pairs and shared supply/ground pins. Interchanging them requires PCB redesign and layout revision.
LMV793MAX/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- 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:
- 8-SOIC
LMV793MAX/NOPB FAQ
1.How can I place an order for LMV793MAX/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV793MAX/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 LMV793MAX/NOPB reliable?
The price and inventory of LMV793MAX/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV793MAX/NOPB is usually 5 days.
3.What payment methods are accepted for LMV793MAX/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV793MAX/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV793MAX/NOPB?
LMV793MAX/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV793MAX/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 LMV793MAX/NOPB?
For technical support, including LMV793MAX/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV793MAX/NOPB requirements.
6.How does Aetrix verify that LMV793MAX/NOPB is sourced from the original manufacturer or authorized distributors?
All LMV793MAX/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 LMV793MAX/NOPB meets industry standards.
7.What is the process for return or replacement of LMV793MAX/NOPB?
All LMV793MAX/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMV793MAX/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 LMV793MAX/NOPB part is unused and in its original packaging.
Return procedure for LMV793MAX/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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