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Texas Instruments LMV772MA
- Part No.:
- LMV772MA
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LMV772MA.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,586
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Product details
Overview
LMV772MA from Texas Instruments is a dual, rail-to-rail output, low-noise precision operational amplifier designed for high-accuracy signal conditioning in space-constrained systems. It delivers 3.5 MHz gain-bandwidth product, 7.5 nV/√Hz input voltage noise at 10 kHz, 550 µA supply current per amplifier, and operates from 2.7 V to 5.5 V - enabling use in battery-powered instrumentation and automotive sensor interfaces.
For engineers reviewing the LMV772MA datasheet, LMV772MA pinout, LMV772MA application, or LMV772MA equivalent, key selection criteria include its guaranteed 2.7 V/5 V operation, −40°C to 125°C temperature range, 850 µV max input offset voltage (room temp), rail-to-rail output swing into 2 kΩ loads, and MSOP-8/SOIC-8 package compatibility.
Technical Context
The LMV772MA implements a CMOS input stage with ultra-low input bias current (100 pA typical) and a robust rail-to-rail output stage capable of sourcing/sinking ≥35 mA. Its internal architecture supports stable unity-gain operation with capacitive loads up to 500 pF and maintains ≥79° phase margin across supply voltages and temperatures.
It features an extended input common-mode range (0 V to VS − 0.9 V), 100 dB large-signal voltage gain (RL = 2 kΩ), and 90 dB CMRR at mid-supply - making it suitable for precision transducer amplification where ground-referenced inputs and high DC accuracy are required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-Bandwidth Product | 3.5 MHz - enables stable closed-loop gain up to 35 at 100 kHz for anti-aliasing or sensor signal amplification |
| Input Voltage Noise | 7.5 nV/√Hz @ 10 kHz - supports low-noise amplification of microvolt-level signals from strain gauges or thermopiles |
| Input Offset Voltage | ≤1.0 mV (max, 25°C) - ensures ≤0.1% error in 1 V full-scale precision current sensing applications |
| Supply Current | 550 µA per amplifier - allows dual-channel operation in sub-1.2 mA total system power budget |
| Rail-to-Rail Output | Swings within 50 mV of rails (RL = 2 kΩ) - maximizes dynamic range when interfacing with 12-bit ADCs powered from same 3.3 V rail |
| Operating Temperature | −40°C to 125°C - qualified for under-hood automotive and industrial control environments without derating |
| Common-Mode Range | 0 V to VS − 0.9 V - accepts single-ended ground-referenced inputs without level-shifting circuitry |
Pinout & Package
LMV772MA is packaged in an 8-pin MSOP (8-Pin MSOP) with exposed thermal pad, offering 235°C/W junction-to-ambient thermal resistance and compatibility with standard SOIC-8 footprints using adapter layout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting Input (Channel A) | High-impedance node for feedback network connection; accepts input common-mode down to ground |
| 2 | Non-Inverting Input (Channel A) | High-impedance node for reference or sensor input; matched bias current minimizes offset drift |
| 3 | Output (Channel A) | Rail-to-rail capable output driving ≥2 kΩ loads; 50 mV headroom enables full 3.3 V ADC utilization |
| 4 | Ground | Power and signal reference plane; requires low-inductance connection to minimize PSRR degradation |
| 5 | Non-Inverting Input (Channel B) | Independent input for second channel; electrically isolated from Channel A per datasheet crosstalk spec (≥80 dB @ 1 kHz) |
| 6 | Inverting Input (Channel B) | Second differential input pair; supports independent gain configuration without interaction |
| 7 | Output (Channel B) | Second rail-to-rail output; identical AC/DC specs to Channel A for matched dual-path designs |
| 8 | Positive Supply | Accepts 2.7 V–5.5 V; PSRR ≥76 dB ensures immunity to digital supply noise in mixed-signal PCBs |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-Low Input Bias Current | 100 pA typical - eliminates significant offset error in high-impedance pH or photodiode front-ends |
| Guaranteed Low-Voltage Operation | Specified at 2.7 V - enables direct interface with Li-ion battery (3.0 V nominal) without LDO regulation |
| Low 1/f Noise Corner | 12.5 nV/√Hz @ 100 Hz - preserves signal integrity in DC-coupled precision weighing and medical ECG front-ends |
| Automotive-Qualified Variant Available | LMV772Q meets AEC-Q100 Grade 1 - confirms reliability for engine control and ADAS sensor signal chains |
| Stable with Capacitive Loads | Operates with ≥500 pF load capacitance - simplifies filtering without external isolation resistors |
Applications
| Transducer Amplifier | Precision Current Sensing |
|---|---|
Use Scenario: Amplifying low-level mV outputs from load cells, pressure sensors, or RTDs in industrial process controllers. IC Role / Device Role / Timing Role: Primary signal-conditioning amplifier providing fixed-gain, low-drift, rail-to-rail output for ADC input. Use Value: 850 µV max VOS and 0.1 µV/°C drift ensure <0.05% full-scale error over −25°C to 85°C ambient range. | Use Scenario: Measuring motor phase current or battery charge/discharge current via shunt resistor in portable power tools. IC Role / Device Role / Timing Role: High-side or low-side current sense amplifier with gain set by external resistors. Use Value: Rail-to-rail output swing and 0–VS−0.9 V input range allow direct sensing at ground or supply rail without level shifters. |
| Data Acquisition Systems | Active Filters and Buffers |
Use Scenario: Front-end amplification stage in 16-bit portable DAQ modules acquiring thermocouple or bridge sensor data. IC Role / Device Role / Timing Role: Programmable-gain amplifier (PGA) driver with low noise and wide bandwidth before SAR ADC sampling. Use Value: 3.5 MHz GBW and 7.5 nV/√Hz noise enable 100 kSPS acquisition with <1 LSB noise floor contribution. | Use Scenario: Implementing 2nd-order Sallen-Key low-pass filters in audio preamps or sensor signal anti-aliasing paths. IC Role / Device Role / Timing Role: Unity-gain stable op-amp configured as active filter integrator or buffer stage. Use Value: Stable phase margin (>79°) and low distortion (0.007% THD) preserve signal fidelity up to 100 kHz passband. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2333AIDR | Zero-drift architecture; 0.02 µV/°C offset drift vs. LMV772MA's −0.35 µV/°C; higher 350 µA supply current per amp | Better long-term stability in unattended monitoring systems; less suitable for ultra-low-power battery operation | Select OPA2333AIDR when offset drift dominates error budget over temperature; accept 60% higher quiescent current |
| MCP6V82-E/MS | Chopper-stabilized; 12 µV max VOS; 650 µA supply current; only rated to 125°C (not AEC-Q100) | Lower initial offset ideal for factory-calibrated systems; lacks automotive qualification and extended temp guarantee | Select MCP6V82-E/MS for cost-sensitive industrial sensors where AEC-Q100 is not required and initial calibration is feasible |
Compared with OPA2333AIDR and MCP6V82-E/MS, the LMV772MA offers the best balance of low noise (7.5 nV/√Hz), low power (550 µA), and guaranteed automotive-grade temperature performance - making it optimal for dual-channel sensor signal chains in harsh environments where both accuracy and reliability are critical.
Availability
LMV772MA is available at Aetrix Electronics and suitable for precision current sensing, transducer amplification, and data acquisition systems requiring stable component supply across automotive, industrial, and medical device production cycles.
Supply support for LMV772MA 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 delivering analog and embedded processing solutions for industrial, automotive, and personal electronics markets.
The LMV772MA belongs to TI's precision op-amp portfolio targeting low-noise, low-offset, rail-to-rail performance in miniature packages - specifically engineered for high-fidelity signal conditioning in space- and power-constrained applications.
FAQ
What is the maximum input offset voltage specification for LMV772MA across temperature?
The LMV772MA has a maximum input offset voltage of 1.2 mV over the full −40°C to 125°C operating range. At room temperature (25°C), the limit is tighter at 1.0 mV. This is verified per TI's SNOSA04F datasheet Section 6.4, DC Electrical Characteristics, under 5.0 V supply conditions. The LMV772MA's offset drift is specified as −0.35 µV/°C, enabling predictable error modeling in precision applications.
Does LMV772MA support true rail-to-rail input common-mode range?
No, the LMV772MA does not support rail-to-rail input. Its input common-mode voltage range is specified as 0 V to VS − 0.9 V. This means the inputs operate correctly down to ground but cannot accept signals within 0.9 V of the positive supply rail. This limitation is documented in the "Electrical Characteristics" table of the LMV772MA datasheet and must be considered when designing high-side sensing circuits.
Can LMV772MA drive a 600 Ω load while maintaining rail-to-rail output swing?
Yes, the LMV772MA can drive a 600 Ω load with rail-to-rail output swing, but with reduced headroom: output swings within 100 mV of each rail (VOUT = 100 mV from VS or GND) under those conditions. This is explicitly specified in the "Output Swing" parameter of the 2.7 V and 5.0 V DC electrical characteristics tables. For minimal headroom, use RL ≥ 2 kΩ to achieve 50 mV rail clearance.
Is LMV772MA pin-compatible with other devices in the LMV77x family?
Yes, the LMV772MA (dual-channel) shares identical pinout with the LMV772 and LMV772Q variants in MSOP-8 and SOIC-8 packages. All three part numbers use Pin 1 = Inverting Input (A), Pin 2 = Non-Inverting Input (A), Pin 3 = Output (A), Pin 4 = GND, Pin 5 = Non-Inverting Input (B), Pin 6 = Inverting Input (B), Pin 7 = Output (B), Pin 8 = VS. This allows drop-in replacement between commercial (LMV772), automotive (LMV772Q), and the LMV772MA variant.
What is the recommended minimum supply bypass capacitance for LMV772MA?
Texas Instruments recommends a minimum 0.1 µF ceramic capacitor placed as close as possible to the VS (Pin 8) and GND (Pin 4) pins of the LMV772MA. This is specified in the "Layout Guidelines" section of the SNOSA04F datasheet to suppress high-frequency supply noise and ensure stability, especially in multi-amplifier PCB layouts where shared supply traces may couple switching noise.
LMV772MA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LMV®
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- Differential, 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 (x2 Channels)
- 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:
- 8-SOIC
LMV772MA FAQ
1.How can I place an order for LMV772MA through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV772MA 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 LMV772MA reliable?
The price and inventory of LMV772MA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV772MA is usually 5 days.
3.What payment methods are accepted for LMV772MA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV772MA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV772MA?
LMV772MA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV772MA 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 LMV772MA?
For technical support, including LMV772MA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV772MA requirements.
6.How does Aetrix verify that LMV772MA is sourced from the original manufacturer or authorized distributors?
All LMV772MA 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 LMV772MA meets industry standards.
7.What is the process for return or replacement of LMV772MA?
All LMV772MA units undergo pre-shipment inspection (PSI). If there is an issue with LMV772MA, 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 LMV772MA part is unused and in its original packaging.
Return procedure for LMV772MA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LMV772MA Tags
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