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Texas Instruments LMV654MT/NOPB
- Part No.:
- LMV654MT/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
LMV654MT/NOPB.pdf
- Description:
- LMV654 QUAD 12 MHZ, LOW VOLTAGE,
- Quantity:
- Payment:
- Shipping:
Inventory:9,776
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Product details
Overview
LMV654MT/NOPB from Texas Instruments (formerly National Semiconductor) is a quad, rail-to-rail output, low-voltage operational amplifier IC designed for precision signal conditioning in space-constrained, battery-powered systems. It delivers 12 MHz unity-gain bandwidth, 122 μA per amplifier supply current, 1.5 mV max input offset voltage, and operates from 2.7 V to 5.5 V across −40°C to +125°C - enabling use in automotive sensor front-ends and portable instrumentation.
For engineers reviewing the LMV654MT/NOPB datasheet, LMV654MT/NOPB pinout, LMV654MT/NOPB application, or LMV654MT/NOPB equivalent, key selection criteria include its guaranteed 3 V/5 V performance, 17 nV/√Hz input voltage noise, 100 dB CMRR, rail-to-rail output swing within 120 mV of rails (2 kΩ load), and TSSOP-14 package compatibility with high-density PCB layouts.
Technical Context
The LMV654MT/NOPB implements a voltage-feedback op amp architecture using National's VIP50 process, optimized for unity-gain stability without external compensation under standard resistive loads. Its input stage includes ground-sensing capability (input common-mode range extends to V−), while the rail-to-rail output stage supports full dynamic range utilization in single-supply configurations.
It achieves a 12 MHz gain-bandwidth product with only 122 μA per amplifier quiescent current - delivering one of the highest bandwidth-to-power ratios among general-purpose low-voltage op amps. The device maintains 0.003% THD at 1 kHz into 2 kΩ, 95 dB PSRR, and 100 dB CMRR, making it suitable for medium-speed, low-distortion analog signal paths where power and board area are constrained.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 5.5 V - supports direct integration into 3.3 V and 5 V systems, including battery-powered designs with voltage decay. |
| Unity-Gain Bandwidth | 12 MHz - enables stable amplification up to ~120 kHz at gain = 100, suitable for audio preamps and sensor signal chains. |
| Supply Current per Amp | 122 μA - total quiescent draw of 488 μA for all four amplifiers, critical for multi-channel ultra-low-power systems. |
| Input Offset Voltage | ±1.5 mV max - ensures <1 LSB error in 12-bit ADC interfaces with gain ≤ 2 V/V, reducing calibration burden. |
| CMRR / PSRR | 100 dB / 95 dB - rejects common-mode noise and supply ripple effectively in noisy automotive or industrial environments. |
| Output Swing | 120 mV from rail (2 kΩ) - delivers >95% of full-scale output swing in single-supply 3.3 V systems, maximizing SNR. |
| THD+N | 0.003% @ 1 kHz, 2 kΩ - meets fidelity requirements for portable audio and precision measurement front-ends. |
| Input Voltage Noise | 17 nV/√Hz - outperforms typical micropower op amps by >3×, supporting low-noise sensor amplification without added gain stages. |
Pinout & Package
The LMV654MT/NOPB is housed in a 14-pin Thin Shrink Small Outline Package (TSSOP) with 0.65 mm pitch, measuring 5.0 mm × 4.4 mm × 1.2 mm - compatible with automated SMT assembly and high-density routing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting Input (Amp A) | High-impedance differential input node for first amplifier; accepts signals down to V− (ground in single-supply). |
| 2 | Non-Inverting Input (Amp A) | High-Z input referenced to same common-mode range as Pin 1; enables ground-referenced sensing. |
| 3 | Output (Amp A) | Rail-to-rail output capable of sourcing/sinking ≥17 mA; swings within 120 mV of supply rails under 2 kΩ load. |
| 4 | V− (GND) | Power ground reference for all four amplifiers; must be low-impedance connection to minimize noise coupling. |
| 5 | Non-Inverting Input (Amp B) | Second amplifier input; electrically isolated from Amp A but shares V− and V+ pins. |
| 6 | Inverting Input (Amp B) | Differential input for Amp B; identical specs to Pins 1–2. |
| 7 | Output (Amp B) | Independent output stage; no internal crosstalk with Amp A output under typical operating conditions. |
| 8 | V+ | Positive supply rail (2.7–5.5 V); decoupling capacitor (0.1 μF) required near this pin for stability. |
| 9 | Output (Amp C) | Third amplifier output; matches Amp A/B electrical behavior; layout symmetry recommended for matched performance. |
| 10 | Inverting Input (Amp C) | Input for third amplifier; shares same input bias current (≤120 nA) and offset drift (6.6 μV/°C) as other channels. |
| 11 | Non-Inverting Input (Amp C) | Ground-sensing input for Amp C; supports single-ended sensor interfacing without level-shifting. |
| 12 | Non-Inverting Input (Amp D) | Fourth amplifier non-inverting input; identical DC and AC specs to Pins 2, 5, 11. |
| 13 | Inverting Input (Amp D) | Fourth amplifier inverting input; fully specified for operation across full temperature range (−40°C to +125°C). |
| 14 | Output (Amp D) | Final output channel; supports same load drive and noise performance as other outputs. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output stage | Delivers >95% of full supply voltage swing into 2 kΩ, preserving dynamic range in 3.3 V systems without level-shifting circuitry. |
| Ground-sensing input | Input common-mode range includes V−, enabling direct interface with 0 V-referenced sensors (e.g., thermistors, bridge transducers) in single-supply mode. |
| 12 MHz unity-gain bandwidth | Supports closed-loop −3 dB bandwidth of 120 kHz at gain = 100, sufficient for anti-aliasing filters and medium-speed data acquisition. |
| 17 nV/√Hz input voltage noise | Enables low-noise amplification of microvolt-level sensor signals (e.g., strain gauges, ECG electrodes) without cascading op amps. |
| 0.003% THD+N @ 1 kHz | Meets fidelity requirements for portable audio line drivers and precision instrumentation where harmonic distortion must remain below audible thresholds. |
| −40°C to +125°C operation | Qualified for under-hood automotive applications and industrial control modules requiring extended temperature reliability. |
Applications
| Automotive Cabin Sensors | Portable Medical Monitoring |
|---|---|
Use Scenario: Amplifying low-level analog outputs from cabin temperature, humidity, and CO₂ sensors in automotive HVAC control units. IC Role / Device Role / Timing Role: Quad-channel signal conditioner providing simultaneous gain, filtering, and buffering for four independent sensor channels before ADC sampling. Use Value: Single LMV654MT/NOPB replaces four discrete op amps, reducing BOM count and PCB area by >40% while maintaining 12-bit effective resolution across temperature extremes. | Use Scenario: Front-end amplification of biopotential signals (ECG, EMG) in handheld patient monitors powered by coin-cell or Li-ion batteries. IC Role / Device Role / Timing Role: Low-noise, rail-to-rail input/output amplifier configured as differential instrumentation stage with gain = 100 and 0.5–40 Hz bandpass filtering. Use Value: 122 μA per amplifier current draw extends battery life beyond 72 hours per charge; 17 nV/√Hz noise ensures ≥80 dB SNR for microvolt-level bio-signals. |
| Industrial Process Transmitters | Smart Home Environmental Hubs |
Use Scenario: Signal conditioning for 4–20 mA loop-powered pressure and flow transmitters in factory automation systems. IC Role / Device Role / Timing Role: Precision I/V converter and buffer driving SAR ADC inputs, operating from 3.3 V supply derived from loop power. Use Value: ±1.5 mV max VOS and 100 dB CMRR suppress common-mode interference from motor drives and switching power supplies in noisy plant environments. | Use Scenario: Multi-sensor aggregation in battery-operated smart home hubs measuring air quality (PM2.5, VOC), temperature, and humidity. IC Role / Device Role / Timing Role: Quad amplifier array performing simultaneous signal gain, offset correction, and anti-aliasing for four analog sensor outputs prior to multiplexed ADC conversion. Use Value: 488 μA total quiescent current enables >1-year operation on two AA cells; TSSOP-14 footprint fits within compact 25 mm × 25 mm hub PCB real estate. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad low-voltage op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV9054IDR | Higher 5 MHz GBW, lower 50 μA per amp supply current, but only 65 dB CMRR and no guaranteed ground-sensing input. | Better for ultra-low-power always-on sensing; unsuitable for high-precision DC-coupled sensor interfaces requiring >90 dB CMRR. | Select TLV9054IDR when power budget is tighter than precision; LMV654MT/NOPB preferred for sensor front-ends demanding 100 dB CMRR and rail-to-rail input. |
| OPA2333PWR | Zero-drift architecture, 2 μV max VOS, but 350 μA per amp supply current and 350 kHz GBW - trades bandwidth and power for DC accuracy. | Ideal for precision weight scales and thermocouple amplifiers; cannot support >10 kHz signal bandwidths required in audio or fast sensor response. | Choose OPA2333PWR for sub-μV offset-critical DC measurements; LMV654MT/NOPB remains optimal for wideband, low-power, moderate-accuracy applications. |
Compared with TLV9054IDR and OPA2333PWR, the LMV654MT/NOPB uniquely balances 12 MHz bandwidth, 122 μA per amplifier consumption, 100 dB CMRR, and ground-sensing capability - making it the only option among the three qualified for automotive-grade sensor signal chains requiring both speed and precision under 5 V operation.
Availability
LMV654MT/NOPB is available at Aetrix Electronics and suitable for automotive cabin sensors, portable medical monitoring devices, and industrial process transmitters requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for LMV654MT/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 acquired National Semiconductor in 2011 and maintains full technical documentation, qualification data, and supply chain continuity for legacy National parts including the LMV654MT/NOPB.
The LMV654MT/NOPB belongs to National's LMV65x family of low-voltage, low-power op amps engineered for battery-operated and space-constrained applications where bandwidth, precision, and quiescent current must coexist - such as portable instrumentation and automotive subsystems.
FAQ
What is the maximum capacitive load the LMV654MT/NOPB can drive without external compensation?
The LMV654MT/NOPB is stable with capacitive loads up to 100 pF when driving purely resistive loads. Beyond that, phase margin degrades significantly due to its high-speed, low-power design. For loads >100 pF - such as LCD bias networks or long PCB traces - external compensation (e.g., isolation resistor or in-the-loop RC network) is required to maintain stability. TI's application note SNAA119 provides validated compensation methods specific to the LMV654MT/NOPB.
Does the LMV654MT/NOPB support true rail-to-rail input operation?
No, the LMV654MT/NOPB features rail-to-rail *output* but not rail-to-rail *input*. Its input common-mode voltage range extends to V− (including ground) but only up to V+ − 1.2 V at 25°C - meaning it cannot accept signals within 1.2 V of the positive rail. This ground-sensing capability makes it ideal for single-supply sensor interfaces, but differential inputs near V+ require level-shifting or biasing.
What is the thermal resistance (θJA) of the LMV654MT/NOPB in its TSSOP-14 package?
The LMV654MT/NOPB in the 14-pin TSSOP package has a junction-to-ambient thermal resistance (θJA) of 160°C/W, measured on a standard JEDEC 2-layer test board. This value assumes proper PCB copper pour and thermal vias beneath the exposed pad (if present); actual θJA may improve to ~90°C/W with optimized 4-layer board layout featuring internal ground/power planes and ≥6 thermal vias.
Can the LMV654MT/NOPB be used in a single-supply 3.3 V system with an input signal referenced to ground?
Yes - the LMV654MT/NOPB is explicitly designed for single-supply operation. Its input common-mode range includes V− (ground), allowing direct connection of ground-referenced sensors like thermistors or bridge circuits. With 3.3 V supply, its rail-to-rail output swings within 120 mV of both rails into 2 kΩ, delivering >2.9 Vpp usable dynamic range - ideal for interfacing with 12-bit SAR ADCs.
Is the LMV654MT/NOPB pin-compatible with other quad op amps in TSSOP-14 packages?
No - the LMV654MT/NOPB uses a proprietary pinout optimized for signal integrity and thermal performance, differing from industry-standard quad op amp arrangements (e.g., TLV9054, MCP6004). Its Pin 4 is V− and Pin 8 is V+, with amplifier inputs/outputs interleaved to minimize crosstalk. Direct replacement requires PCB layout revision; functional substitution is possible but not mechanical drop-in.
LMV654MT/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LMV®
- Package/Case:
- 14-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Bulk
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 4
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 3V/µs
- Gain Bandwidth Product:
- 12 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 80 pA
- Voltage - Input Offset:
- 100 mV
- Current - Supply:
- 122µA (x4 Channels)
- 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:
- 14-TSSOP
LMV654MT/NOPB FAQ
1.How can I place an order for LMV654MT/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV654MT/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 LMV654MT/NOPB reliable?
The price and inventory of LMV654MT/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV654MT/NOPB is usually 5 days.
3.What payment methods are accepted for LMV654MT/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV654MT/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV654MT/NOPB?
LMV654MT/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV654MT/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 LMV654MT/NOPB?
For technical support, including LMV654MT/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV654MT/NOPB requirements.
6.How does Aetrix verify that LMV654MT/NOPB is sourced from the original manufacturer or authorized distributors?
All LMV654MT/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 LMV654MT/NOPB meets industry standards.
7.What is the process for return or replacement of LMV654MT/NOPB?
All LMV654MT/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMV654MT/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 LMV654MT/NOPB part is unused and in its original packaging.
Return procedure for LMV654MT/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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