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Texas Instruments LMV792MM
- Part No.:
- LMV792MM
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
LMV792MM.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 10VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,875
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Product details
Overview
LMV792MM from Texas Instruments is a dual, low-noise, CMOS-input operational amplifier optimized for low-voltage sensor signal conditioning. It delivers 5.8 nV/√Hz input voltage noise density, 17 MHz unity-gain bandwidth, and rail-to-rail output swing within 25 mV of rails at 10-kΩ load - enabling high-fidelity amplification in photodiode transimpedance and medical instrumentation circuits.
For engineers reviewing the LMV792MM datasheet, LMV792MM pinout, LMV792MM application, or LMV792MM equivalent, key selection criteria include its 100 fA input bias current, shutdown mode consuming only 0.02 µA per channel, 1.8 V to 5.5 V supply range, and guaranteed performance across −40°C to +125°C industrial temperature range.
Technical Context
The LMV792MM integrates two independent amplifiers in a single 10-pin VSSOP package, each with dedicated enable (EN A/EN B) pins supporting independent channel power control. Its CMOS input stage enables ground-sensing operation with input common-mode range extending to V−, while the rail-to-rail output stage sustains ≥45 mA sourcing/sinking capability at 5 V supply.
It employs a unity-gain-stable architecture with 17 MHz gain-bandwidth product and 9.5 V/µs typical slew rate (rising), ensuring fidelity in active filters and low-noise signal chains operating up to audio frequencies. Shutdown mode reduces quiescent current to sub-µA levels without affecting output impedance or stability margins.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Noise Density | 5.8 nV/√Hz at 1 kHz - enables high-SNR amplification of weak sensor signals without adding measurable noise floor. |
| Unity-Gain Bandwidth | 17 MHz - supports stable closed-loop operation up to ~10 MHz in gain-of-2 configurations for precision active filtering. |
| Supply Current (per channel) | 1.30 mA in enable mode - balances speed and power for battery-operated portable instrumentation. |
| Shutdown Current (per channel) | 0.02 µA - extends battery life by >100× vs active mode in intermittent-sampling systems. |
| Rail-to-Rail Output Swing | 25 mV from rail at 10-kΩ load - maximizes dynamic range in 2.5 V–3.3 V single-supply systems. |
| Input Bias Current | 100 fA max at 125°C - preserves signal integrity in high-impedance photodiode and pH electrode interfaces. |
| Operating Temperature Range | −40°C to +125°C - qualified for under-hood automotive and industrial control environments. |
Pinout & Package
LMV792MM is housed in a 10-pin VSSOP (DGS) package measuring 3.00 mm × 3.00 mm, optimized for space-constrained PCB layouts while maintaining thermal performance (θJA = 179.1°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 9 | OUT A / OUT B | Amplifier A and B output terminals - rail-to-rail capable, drive ≥600 Ω loads with <0.01% THD+N at 1 kHz. |
| 2, 8 | IN A− / IN B− | Inverting inputs - support precision differential and transimpedance configurations with 75 dB min CMRR. |
| 3, 7 | IN A+ / IN B+ | Noninverting inputs - accept common-mode voltages down to V− (ground in single-supply use). |
| 4 | V− | Negative supply rail - serves as reference for both amplifiers and enable logic; must be connected to system ground or negative rail. |
| 5, 6 | EN A / EN B | Independent channel enable inputs - high (>V+ − 0.5 V) activates; low ( |
| 10 | V+ | Positive supply rail - accepts 1.8 V to 5.5 V; regulates internal biasing and output stage headroom. |
Key Features
| Feature | Design Value |
|---|---|
| Low-noise CMOS input stage | 5.8 nV/√Hz voltage noise + 0.01 pA/√Hz current noise - preserves SNR in high-Z sensor front-ends like photodiodes and piezoelectrics. |
| Independent per-channel shutdown | Dual EN pins (pins 5 & 6) allow selective disabling - reduces total system IQ in multi-channel data acquisition without layout changes. |
| Rail-to-rail output with 45 mA drive | Swings within 25 mV of rails into 10-kΩ and sources/sinks ≥45 mA at 5 V - eliminates need for level-shifting in low-voltage ADC driver stages. |
| Ground-sensing input range | Common-mode voltage includes V− - enables direct interface to 0 V-referenced sensors (e.g., thermocouples, bridge outputs) in single-supply designs. |
| Guaranteed 2.5 V and 5 V operation | Full AC/DC specs validated at both 2.5 V and 5 V - simplifies design reuse across battery-powered (3.3 V) and line-powered (5 V) platforms. |
Applications
| Photodiode Amplifiers | Active Filters and Buffers |
|---|---|
Use Scenario: Converting weak photocurrents (pA–nA) from medical pulse oximetry sensors into clean voltage signals. IC Role / Device Role / Timing Role: Transimpedance amplifier with ultra-low input bias current and voltage noise to maximize signal-to-noise ratio. Use Value: 100 fA IB prevents photocurrent loss; 5.8 nV/√Hz noise ensures detection of sub-mV signals without amplification-induced degradation. |
Use Scenario: Implementing 2nd-order anti-aliasing and reconstruction filters in portable data loggers. IC Role / Device Role / Timing Role: Unity-gain-stable op-amp providing precise gain, phase, and settling behavior up to 10 MHz. Use Value: 17 MHz GBW and 9.5 V/µs slew rate maintain filter group delay flatness and step response fidelity at 100 kSPS sampling rates. |
| Low-Noise Signal Processing | Sensor Interface Applications |
Use Scenario: Amplifying microvolt-level EEG or ECG bio-potential signals in wearable health monitors. IC Role / Device Role / Timing Role: First-stage instrumentation amplifier with rail-to-rail output driving 16-bit SAR ADC reference buffers. Use Value: 25 mV rail margin at 3.3 V supply preserves full 0–3.3 V ADC input range; shutdown mode cuts idle power during sleep cycles. |
Use Scenario: Conditioning outputs from MEMS accelerometers and humidity sensors in smart building nodes. IC Role / Device Role / Timing Role: Low-power signal conditioner with independent channel enable for time-multiplexed sensor polling. Use Value: Dual EN pins allow sequential activation of sensor channels - reducing average supply current by >90% vs always-on operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual low-noise op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2376IDGKR | Lower noise (4.5 nV/√Hz), higher supply current (750 µA/channel), no shutdown pin | Better SNR in DC-critical apps; unsuitable where per-channel power gating is required | Choose when lowest possible noise dominates over power and control flexibility |
| AD8602ARMZ-REEL | Higher input bias current (1 pA), no shutdown, wider offset drift (±3.5 µV/°C) | Cost-optimized for general-purpose buffering; lacks low-IB and enable features for sensor front-ends | Choose for non-critical, high-volume analog signal routing where shutdown and femtoampere IB are unnecessary |
Compared with OPA2376IDGKR and AD8602ARMZ-REEL, LMV792MM uniquely combines femtoampere input bias, integrated shutdown, and 17 MHz bandwidth in a 3 mm × 3 mm VSSOP - making it the only option among the three that supports both ultra-high-impedance sensing and dynamic power management in compact industrial designs.
Availability
LMV792MM is available at Aetrix Electronics and suitable for photodiode amplifiers, active filters and buffers, and low-noise signal processing requiring stable component supply across industrial temperature ranges and long production lifecycles.
Supply support for LMV792MM 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 company delivering analog and embedded processing solutions for industrial, automotive, and personal electronics markets.
The LMV792MM belongs to TI's LMV79x family of low-noise, CMOS-input op-amps designed specifically for high-fidelity, low-power signal conditioning in battery-operated and space-constrained sensor interface applications.
FAQ
What is the maximum supply voltage for LMV792MM?
The absolute maximum supply voltage (V+ – V−) for LMV792MM is 6 V, but the recommended operating range is 1.8 V to 5.5 V. Operation at 5.5 V is fully characterized across temperature, while 1.8 V operation is specified for 0°C to 125°C ambient. Exceeding 6 V risks permanent damage per the Absolute Maximum Ratings table in the datasheet.
Does LMV792MM support true rail-to-rail input?
No, LMV792MM does not support rail-to-rail input. Its input common-mode voltage range extends to V− (including ground in single-supply use) but only up to V+ − 1.2 V at 25°C. The datasheet specifies CMVR as −0.3 V to 4.0 V at 5 V supply, confirming the upper limit excludes the positive rail - unlike its rail-to-rail output capability.
How does the shutdown function behave on LMV792MM?
LMV792MM features independent enable pins (EN A on pin 5, EN B on pin 6). When EN is driven above V+ − 0.5 V, the corresponding amplifier operates normally. When EN falls below V− + 0.5 V, that channel enters shutdown, reducing its supply current to ≤1 µA. Output becomes high-impedance - not tri-stated - and recovery time is ≤110 ns (ton) per channel.
Can LMV792MM drive a 600-Ω load at 1 kHz with low distortion?
Yes, LMV792MM delivers 0.01% THD+N at 1 kHz into a 600-Ω load, as confirmed in both 2.5-V and 5-V Electrical Characteristics tables. This performance holds across −40°C to +125°C, making it suitable for driving legacy audio codecs and precision test equipment interfaces without external buffering.
What is the thermal resistance (θJA) of LMV792MM in its VSSOP package?
The junction-to-ambient thermal resistance (θJA) for LMV792MM in the 10-pin VSSOP (DGS) package is 179.1°C/W, measured on a standard JEDEC 2-layer board. This value assumes no thermal vias or copper pour enhancements - actual board-level θJA will improve with proper thermal land design per TI's Layout Guidelines section.
LMV792MM Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LMV®
- Package/Case:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- 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:
- 1.3mA (x2 Channels)
- 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:
- 10-VSSOP
LMV792MM FAQ
1.How can I place an order for LMV792MM through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV792MM 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 LMV792MM reliable?
The price and inventory of LMV792MM are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV792MM is usually 5 days.
3.What payment methods are accepted for LMV792MM?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV792MM transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV792MM?
LMV792MM orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV792MM 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 LMV792MM?
For technical support, including LMV792MM datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV792MM requirements.
6.How does Aetrix verify that LMV792MM is sourced from the original manufacturer or authorized distributors?
All LMV792MM 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 LMV792MM meets industry standards.
7.What is the process for return or replacement of LMV792MM?
All LMV792MM units undergo pre-shipment inspection (PSI). If there is an issue with LMV792MM, 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 LMV792MM part is unused and in its original packaging.
Return procedure for LMV792MM:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LMV792MM Tags
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