My Inquiry
My Account
Texas Instruments LMV551MG/NOPB
- Part No.:
- LMV551MG/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
LMV551MG/NOPB.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SC70-5
- Quantity:
- Payment:
- Shipping:
Inventory:4,105
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LMV551MG/NOPB from Texas Instruments is a single-channel, rail-to-rail output, micropower operational amplifier optimized for ultra-low-power signal conditioning in space-constrained systems. It delivers 3 MHz unity-gain bandwidth, 37 µA supply current per amplifier, and 70 mV rail-to-rail output swing (at 100 kΩ load, 5 V supply), enabling high-fidelity amplification in battery-powered sensor front-ends and portable instrumentation.
For engineers reviewing the LMV551MG/NOPB datasheet, LMV551MG/NOPB pinout, LMV551MG/NOPB application, or LMV551MG/NOPB equivalent, key selection criteria include its 2.7–5.5 V supply range, −40°C to +125°C operating temperature, 93 dB CMRR, 70 nV/√Hz input voltage noise, and compatibility with SC70-5 and SOT-23-5 packages - all critical for low-voltage, low-noise, thermally robust analog designs.
Technical Context
The LMV551MG/NOPB employs TI's VIP50 process to achieve exceptional bandwidth-to-power efficiency (3 MHz at 37 µA). Its input stage extends below ground, supporting true single-supply operation with ground-sensing capability, while the rail-to-rail output stage maximizes dynamic range across the full 2.7–5.5 V supply range.
It is unity-gain stable but requires external compensation when driving capacitive loads >100 pF due to reduced phase margin; stability is maintained via in-loop RC compensation or series isolation resistors (e.g., 340 Ω + 15 pF for 100 pF load), preserving functionality without sacrificing core low-power advantage.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 5.5 V - enables direct integration into 3.3 V and 5 V systems, including coin-cell and Li-ion powered devices. |
| Supply Current per Amplifier | 37 µA (typ. at 5 V) - supports multi-year battery life in always-on sensor nodes and wearable health monitors. |
| Unity-Gain Bandwidth | 3 MHz - sufficient for anti-aliasing, active filtering, and audio pre-amplification up to ~100 kHz with gain ≥10. |
| Input Offset Voltage | 3 mV (max at 25°C) - ensures <0.1% error in 12-bit ADC front-ends with gain ≤10 and reference ≥3 V. |
| CMRR | 93 dB (typ. at 5 V) - rejects common-mode noise from noisy digital supplies or shared ground paths in mixed-signal PCBs. |
| Output Swing (100 kΩ) | 70 mV from rail (high), 60 mV from rail (low) at 5 V - delivers >95% of full-scale output range for precision single-supply data acquisition. |
| Input Voltage Noise | 70 nV/√Hz (flatband) - outperforms typical micropower op amps by 2–3×, critical for low-level thermocouple or bridge sensor amplification. |
Pinout & Package
LMV551MG/NOPB is packaged in the 5-pin SC70 (2.00 mm × 1.25 mm) and SOT-23 (2.90 mm × 1.60 mm) footprints. Both variants share identical pinout and electrical characteristics.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (+IN) | Noninverting Input | Accepts differential input voltage referenced to V−; supports common-mode range down to V− (ground in single-supply). |
| 2 (V−) | Negative Supply | Ground reference for single-supply operation; must be connected directly to system ground or negative rail. |
| 3 (−IN) | Inverting Input | Completes differential pair; used with feedback network to set closed-loop gain and configure filter topology. |
| 4 (OUT) | Amplifier Output | Rail-to-rail capable; drives 100 kΩ loads to within 70 mV of rails - avoids clipping in low-voltage ADC interfaces. |
| 5 (V+) | Positive Supply | Primary power input; accepts 2.7–5.5 V; decoupling capacitor (0.1 µF) required adjacent to pin for stability. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output stage | Delivers >95% supply voltage swing at 100 kΩ load - eliminates need for level-shifting in 3.3 V microcontroller ADC inputs. |
| Input common-mode range includes V− | Enables ground-referenced sensing (e.g., current shunt, thermistor) without level-shifting circuitry in single-supply systems. |
| 70 nV/√Hz input voltage noise | Reduces integrated noise in 10 Hz–10 kHz band to <1 µV RMS - suitable for medical-grade ECG front-end amplification. |
| 3 MHz bandwidth at 37 µA | Provides 80× higher bandwidth-per-µA than legacy micropower op amps - enables faster settling in multiplexed sensor arrays. |
| −40°C to +125°C operation | Validated performance across automotive under-hood and industrial control environments without derating. |
Applications
| Portable Medical Sensors | Automotive Cabin Sensors |
|---|---|
|
Use Scenario: Amplifying low-amplitude signals from piezoresistive pressure sensors in wearable blood pressure cuffs. IC Role / Device Role / Timing Role: Single-supply transducer signal conditioner with ground-sensing input and rail-to-rail output driving 12-bit SAR ADC. Use Value: 37 µA quiescent current extends battery life beyond 12 months; 70 nV/√Hz noise ensures <1 mmHg measurement resolution. |
Use Scenario: Signal conditioning for humidity and CO₂ sensors in automotive HVAC control modules. IC Role / Device Role / Timing Role: Low-drift, temperature-stable amplifier interfacing resistive sensor bridges to microcontroller ADC. Use Value: 93 dB CMRR rejects engine EMI; −40°C to +125°C rating ensures reliability across cabin thermal cycles. |
| Industrial Wireless Sensor Nodes | Low-Power Active Filters |
|
Use Scenario: Front-end amplification for MEMS accelerometers in battery-operated predictive maintenance vibration monitors. IC Role / Device Role / Timing Role: Micropower gain stage preceding ultra-low-power MCU with integrated ADC and BLE radio. Use Value: 3 MHz bandwidth supports 100 kHz vibration analysis; 2.7 V minimum supply allows operation down to end-of-life battery voltage. |
Use Scenario: Second-order Sallen-Key low-pass filter in portable audio equipment to suppress RF interference. IC Role / Device Role / Timing Role: Unity-gain stable, low-noise op amp implementing 20 kHz cutoff with minimal component count. Use Value: 3 MHz GBW ensures <0.1 dB passband flatness to 10 kHz; rail-to-rail output preserves headroom in 3.3 V audio DAC interface. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP6001T-E/OT | Lower bandwidth (1 MHz), higher supply current (100 µA), same SC70-5 package and rail-to-rail output. | Better DC precision (1.6 mV VOS max) but insufficient bandwidth for >50 kHz active filters or fast-settling sensor interfaces. | Select when ultra-low offset dominates over speed and power; avoid when >2 MHz closed-loop bandwidth is required. |
| TLV851DBVR | Higher bandwidth (5.5 MHz), higher supply current (425 µA), same SC70-5 footprint, rail-to-rail I/O. | Superior slew rate (2.5 V/µs) and noise (26 nV/√Hz) but draws >11× more current - unsuitable for multi-year battery life. | Select when speed/noise outweigh power constraints; use only in energy-harvesting or rechargeable systems with >100 µA average budget. |
Compared with MCP6001T-E/OT and TLV851DBVR, LMV551MG/NOPB uniquely balances 3 MHz bandwidth, 37 µA supply current, and 70 nV/√Hz noise - making it optimal for battery-powered instrumentation where both speed and longevity are non-negotiable.
Availability
LMV551MG/NOPB is available at Aetrix Electronics and suitable for portable medical sensors, automotive cabin sensors, and industrial wireless sensor nodes requiring stable component supply across extended production lifecycles.
Supply support for LMV551MG/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 amplifiers and low-power design.
The LMV551MG/NOPB belongs to TI's LMV55x micropower RRO amplifier family, engineered specifically for ultra-low-power, wide-bandwidth signal conditioning in battery-operated and thermally demanding applications.
FAQ
What is the maximum capacitive load the LMV551MG/NOPB can drive without external compensation?
The LMV551MG/NOPB maintains stable operation with capacitive loads ≤100 pF. Beyond this, phase margin degrades significantly - for example, at 150 pF, phase margin drops to ~40°. External compensation (e.g., 340 Ω isolation resistor + 22 pF feedback capacitor) is required to restore stability for larger loads, as documented in TI's SNOSAQ5H datasheet Figure 27 and Table 1.
Does the LMV551MG/NOPB support true single-supply operation with input signals at ground potential?
Yes. The LMV551MG/NOPB features an input common-mode voltage range that extends to V− (including ground in single-supply configurations), enabling direct amplification of ground-referenced signals like current-sense shunts or resistive temperature detectors without level-shifting circuitry - a key advantage over standard op amps with limited input range.
What is the typical output voltage swing of the LMV551MG/NOPB at 3.3 V supply with 10 kΩ load?
At 3.3 V supply and 10 kΩ load, the LMV551MG/NOPB delivers a typical output swing of 100 mV from the positive rail and 110 mV from the negative rail (i.e., 0.1–3.2 V range), as specified in Section 6.5 of the SNOSAQ5H datasheet. This ensures usable dynamic range for 12-bit ADCs with 3.3 V references.
How does the input voltage noise of the LMV551MG/NOPB compare to other micropower op amps?
The LMV551MG/NOPB specifies 70 nV/√Hz input voltage noise - significantly lower than typical micropower op amps (often >100 nV/√Hz). Its 4 Hz 1/f noise corner further enhances low-frequency precision, making it suitable for DC-coupled sensor interfaces where integrated noise below 10 Hz must be minimized - a verified characteristic in TI's Figure 10 and Section 7.3.3.
Is the LMV551MG/NOPB pin-compatible with other members of the LMV55x family?
No. The LMV551MG/NOPB is a single-channel device in 5-pin SC70/SOT-23 packages, while LMV552 (dual) uses 8-pin VSSOP and LMV554 (quad) uses 14-pin TSSOP. Pin counts, functions, and footprints differ across the family - only the LMV551 variants (e.g., LMV551IDBVR, LMV551MG/NOPB) share identical 5-pin pinout and package dimensions.
LMV551MG/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:
- 1V/µs
- Gain Bandwidth Product:
- 3 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 20 nA
- Voltage - Input Offset:
- 1 mV
- Current - Supply:
- 37µA
- Current - Output / Channel:
- 25 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
LMV551MG/NOPB FAQ
1.How can I place an order for LMV551MG/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV551MG/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 LMV551MG/NOPB reliable?
The price and inventory of LMV551MG/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV551MG/NOPB is usually 5 days.
3.What payment methods are accepted for LMV551MG/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV551MG/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV551MG/NOPB?
LMV551MG/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV551MG/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 LMV551MG/NOPB?
For technical support, including LMV551MG/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV551MG/NOPB requirements.
6.How does Aetrix verify that LMV551MG/NOPB is sourced from the original manufacturer or authorized distributors?
All LMV551MG/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 LMV551MG/NOPB meets industry standards.
7.What is the process for return or replacement of LMV551MG/NOPB?
All LMV551MG/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMV551MG/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 LMV551MG/NOPB part is unused and in its original packaging.
Return procedure for LMV551MG/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LMV551MG/NOPB Tags
-
LM358DT
STMicroelectronics
-
LM358DR
Texas Instruments
-
LM2904DR
Texas Instruments
-
LM358ADR
Texas Instruments
-
LM2904DGKR
Texas Instruments
-
LM324DR
Texas Instruments
-
MCP6006T-E/OT
Microchip Technology
-
MCP6006UT-E/OT
Microchip Technology
-
LM324PWR
Texas Instruments
-
LM2902PWR
Texas Instruments
-
LM2902DR
Texas Instruments
-
LM358P
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
