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Texas Instruments LMV861MG/NOPB
- Part No.:
- LMV861MG/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
LMV861MG/NOPB.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SC70-5
- Quantity:
- Payment:
- Shipping:
Inventory:760
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Product details
Overview
LMV861MG/NOPB from Texas Instruments is a single-channel, CMOS-input, rail-to-rail output operational amplifier optimized for EMI-sensitive sensor signal conditioning. It delivers 30 MHz gain-bandwidth, 18 V/µs slew rate, 1 mV max input offset voltage, and 105 dB EMI rejection ratio at 1.8 GHz - enabling high-fidelity amplification in pressure sensor front-ends, medical diagnosis equipment, and weight scale systems.
For engineers reviewing the LMV861MG/NOPB datasheet, LMV861MG/NOPB pinout, LMV861MG/NOPB application, or LMV861MG/NOPB equivalent, this page provides verified specifications, SC70-5 package layout, EMI-hardened design context, and validated alternative options for precision low-power analog signal chains operating from −40°C to +125°C.
Technical Context
The LMV861MG/NOPB employs a unity-gain-stable CMOS input stage with input common-mode range extending to ground and rail-to-rail output swing. Its architecture maintains stability driving capacitive loads up to 200 pF without external compensation, supporting direct connection to ADC drivers and photodiode preamps.
EMI hardening is implemented at the transistor and layout level to suppress RF-induced offset shifts - confirmed by 105 dB EMIRR at 1.8 GHz and robust performance across 400–2400 MHz bands. PSRR and CMRR both reach 93 dB over 2.7–5.5 V supply, ensuring accuracy in noisy industrial power domains.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 2.7 V to 5.5 V - supports single-supply operation from Li-ion battery (3.3 V) or USB-powered systems (5 V). |
| GBW Product | 30 MHz - enables stable closed-loop gain ≥10 at 3 MHz for anti-aliasing filter buffering before SAR ADCs. |
| Slew Rate | 18 V/µs - sustains full-scale 1 VPP output at 1 MHz without distortion in fast-settling sensor interfaces. |
| Input Offset Voltage | ≤1 mV max - ensures ≤0.02% gain error in 50 mV full-scale bridge sensor outputs without trimming. |
| EMI Rejection Ratio | 105 dB at 1.8 GHz - reduces RF-induced offset drift to <1 µV under GSM/UMTS band interference. |
| Input Bias Current | 0.1 pA typical - preserves signal integrity in high-impedance photodiode or piezoresistive sensor nodes. |
| Operating Temperature | −40°C to +125°C - qualified for under-hood automotive pressure sensing and industrial process monitoring. |
Pinout & Package
LMV861MG/NOPB is housed in a 5-pin SC70 package (2.0 mm × 1.25 mm, 0.65 mm pitch), optimized for space-constrained PCB layouts in portable and embedded systems.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT) | Output | Rail-to-rail voltage source capable of sourcing/sinking 67 mA (3.3 V) or 150 mA (5 V); drives 2 kΩ loads within 3 mV of rails. |
| 2 (−IN) | Inverting Input | High-impedance CMOS node; accepts common-mode voltages from −0.1 V to V+ − 1.2 V with ≥77 dB CMRR. |
| 3 (GND) | Ground | Reference return for V−; ties to system ground plane to minimize EMI coupling paths in sensor PCBs. |
| 4 (+IN) | Non-inverting Input | Differential input pair node; matched to −IN for <1 pA input offset current and low THD+N (0.02%). |
| 5 (V+) | Positive Supply | Power input pin; decoupling capacitor (100 nF) required within 2 mm to maintain PSRR >90 dB above 10 kHz. |
Key Features
| Feature | Design Value |
|---|---|
| EMI Hardening | Validated 105 dB rejection at 1.8 GHz eliminates need for external RF filtering in wireless-adjacent medical sensors. |
| Rail-to-Rail Output | Swings within 3 mV of supply rails at 10 kΩ load - maximizes dynamic range for 12-bit+ ADC interfacing. |
| Low Input Bias Current | 0.1 pA typical enables use with >1 GΩ source impedances (e.g., ceramic pressure transducers) without gain error. |
| Capacitive Load Drive | Stable with up to 200 pF directly on output - simplifies layout for proximity-sensing circuits with long traces. |
| Wide Temp Range | Specified performance from −40°C to +125°C - supports unheated outdoor weight scales and engine bay pressure monitors. |
Applications
| Pressure Sensor Signal Conditioning | Photodiode Pre-amplification |
|---|---|
Use Scenario: Amplifying low-level mV-range differential output from MEMS pressure bridges in HVAC and medical ventilators. IC Role / Device Role / Timing Role: Primary gain stage with EMI-hardened inputs rejecting RF noise from nearby WiFi modules. Use Value: 105 dB EMIRR prevents RF-induced zero-point drift, eliminating recalibration cycles during wireless firmware updates. |
Use Scenario: Converting nanoamp photocurrent from diagnostic optical sensors into clean voltage signals. IC Role / Device Role / Timing Role: Transimpedance amplifier with ultra-low input bias current preserving signal-to-noise ratio. Use Value: 0.1 pA input bias current minimizes dark-current error, enabling detection of sub-pW light levels. |
| Weight Scale Analog Front-End | Medical Diagnosis Equipment |
Use Scenario: Buffering and scaling millivolt outputs from strain-gauge load cells in commercial kitchen scales. IC Role / Device Role / Timing Role: Rail-to-rail output buffer driving 16-bit sigma-delta ADC reference inputs. Use Value: 3 mV output swing margin at 3.3 V ensures full ADC code utilization without headroom loss. |
Use Scenario: Low-noise amplification of bio-potential signals (ECG, EEG) in portable diagnostic devices. IC Role / Device Role / Timing Role: First-stage instrumentation amplifier input buffer with 8 nV/√Hz input noise density. Use Value: 8 nV/√Hz noise at 1 kHz preserves microvolt-level cardiac waveforms amid switching power supply noise. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA333AIDBVR | Zero-drift architecture; 0.1 µV/°C TCVOS vs. LMV861MG/NOPB's 0.7 µV/°C; 350 kHz GBW vs. 30 MHz. | Better DC precision for static sensor offsets; insufficient bandwidth for fast transient capture in pulse oximetry. | Select OPA333AIDBVR when ultra-low drift dominates over speed; avoid where >1 MHz signal content exists. |
| MCP6001T-E/OT | Lower supply current (100 µA vs. 2.25 mA); 1 MHz GBW; no specified EMIRR; 60 dB CMRR at 100 kHz. | Adequate for low-speed battery monitors; lacks EMI hardening for cellular-adjacent medical devices. | Select MCP6001T-E/OT only in RF-shielded enclosures or non-critical consumer weight scales. |
Compared with OPA333AIDBVR and MCP6001T-E/OT, LMV861MG/NOPB uniquely balances 30 MHz bandwidth, 105 dB EMI rejection, and 0.1 pA input bias - making it the sole choice for high-speed, RF-immune sensor amplification in compact industrial and medical systems.
Availability
LMV861MG/NOPB is available at Aetrix Electronics and suitable for pressure sensor signal conditioning, photodiode preamplification, and medical diagnosis equipment requiring stable component supply across automotive, industrial, and healthcare production programs.
Supply support for LMV861MG/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 high-reliability op amp design and manufacturing.
The LMV861MG/NOPB belongs to TI's EMI-hardened precision op amp product line, engineered specifically for sensor signal chains in electrically noisy environments such as automotive cabins, hospital equipment, and industrial IoT edge nodes.
FAQ
What is the maximum capacitive load the LMV861MG/NOPB can drive without external compensation?
The LMV861MG/NOPB is unity-gain stable and can drive capacitive loads up to 200 pF directly at its output without oscillation or phase-margin degradation. This capability simplifies PCB layout for sensor interfaces with long traces or integrated RC filters, eliminating the need for isolation resistors in most designs. For loads exceeding 200 pF, a series isolation resistor (e.g., 50 Ω) between the LMV861MG/NOPB output and the load restores stability while maintaining acceptable signal fidelity.
Does the LMV861MG/NOPB support rail-to-rail input common-mode voltage?
No - the LMV861MG/NOPB features rail-to-rail *output* swing but has an input common-mode voltage range that extends to ground (−0.1 V) and up to V+ − 1.2 V. At 3.3 V supply, this allows input signals from −0.1 V to 2.1 V; at 5 V, from −0.1 V to 3.9 V. This ground-sensing capability supports single-supply operation with AC-coupled or bipolar sensor outputs, but does not accommodate full rail-to-rail input voltage swings.
What is the significance of the 105 dB EMIRR specification for LMV861MG/NOPB at 1.8 GHz?
The 105 dB EMIRR at 1.8 GHz quantifies the LMV861MG/NOPB's ability to reject GSM/UMTS cellular band interference: a 100 mVP RF signal induces less than 1 µV of input-referred offset shift. This hardening is achieved through proprietary layout and device-level techniques, not external filtering - enabling reliable operation in handheld medical devices, smart scales, and automotive ECUs co-located with cellular modems without added shielding or ferrites.
Can LMV861MG/NOPB operate from a 2.7 V supply while maintaining full 30 MHz bandwidth?
Yes - the LMV861MG/NOPB is fully specified from 2.7 V to 5.5 V, and its 30 MHz gain-bandwidth product is guaranteed across this entire supply range. At 2.7 V, typical GBW remains 30 MHz (with minor variation per characterization data), supporting high-speed signal conditioning in energy-harvesting or coin-cell-powered sensor nodes where supply headroom is constrained.
How does the input bias current of LMV861MG/NOPB impact high-impedance sensor interfacing?
With a typical input bias current of 0.1 pA and max of 10 pA, the LMV861MG/NOPB introduces negligible voltage error across sensor source impedances up to 1 GΩ - critical for piezoresistive pressure elements and photodiodes. For example, a 500 MΩ transducer impedance generates only 5 µV offset error, preserving measurement accuracy without active guarding or calibration compensation in the LMV861MG/NOPB signal path.
LMV861MG/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 5-TSSOP, SC-70-5, SOT-353
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 20V/µs
- Gain Bandwidth Product:
- 31 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 0.1 pA
- Voltage - Input Offset:
- 273 µV
- Current - Supply:
- 2.47mA
- Current - Output / Channel:
- 150 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:
- SC-70-5
LMV861MG/NOPB FAQ
1.How can I place an order for LMV861MG/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV861MG/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 LMV861MG/NOPB reliable?
The price and inventory of LMV861MG/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV861MG/NOPB is usually 5 days.
3.What payment methods are accepted for LMV861MG/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV861MG/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV861MG/NOPB?
LMV861MG/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV861MG/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 LMV861MG/NOPB?
For technical support, including LMV861MG/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV861MG/NOPB requirements.
6.How does Aetrix verify that LMV861MG/NOPB is sourced from the original manufacturer or authorized distributors?
All LMV861MG/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 LMV861MG/NOPB meets industry standards.
7.What is the process for return or replacement of LMV861MG/NOPB?
All LMV861MG/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMV861MG/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 LMV861MG/NOPB part is unused and in its original packaging.
Return procedure for LMV861MG/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LMV861MG/NOPB Tags
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