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Texas Instruments LMV934MTX/NOPB
- Part No.:
- LMV934MTX/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
LMV934MTX/NOPB.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:5,083
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Product details
Overview
LMV934MTX/NOPB from Texas Instruments is a quad rail-to-rail input/output operational amplifier optimized for 1.8-V operation, delivering 1.4-MHz gain bandwidth, 100-μA per-channel supply current, and output swing within 80 mV of rails into 600-Ω load - enabling precision signal conditioning in space-constrained, battery-powered systems such as wearable health monitors and portable medical sensors.
For engineers reviewing the LMV934MTX/NOPB datasheet, LMV934MTX/NOPB pinout, LMV934MTX/NOPB application, or LMV934MTX/NOPB equivalent, key selection criteria include guaranteed 1.8-V operation, rail-to-rail I/O with 200-mV beyond-rail common-mode range, ultra-low quiescent current, and TSSOP-14 packaging suitable for high-density PCB layouts in portable electronics.
Technical Context
The LMV934MTX/NOPB implements a CMOS input stage with rail-to-rail input common-mode range extending 200 mV beyond both supply rails, supporting single-supply operation down to 1.8 V. Its output stage uses complementary push-pull architecture to achieve rail-to-rail swing under load while maintaining stability driving up to 1000-pF capacitive loads.
It features a unity-gain stable design with 71° phase margin at 5 V and 67° at 1.8 V, 101-dB DC open-loop gain, and 123-dB amplifier-to-amplifier isolation - ensuring minimal crosstalk in multi-channel sensing and signal routing applications across −40°C to +125°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.8 V to 5.5 V - enables direct interface with single-cell Li-ion (3.0–4.2 V) and two-cell alkaline (2.4–3.2 V) batteries without regulation. |
| Gain Bandwidth Product | 1.4 MHz at 1.8 V - supports audio-band filtering, sensor amplification, and low-speed data acquisition with minimal phase error. |
| Input Offset Voltage (max) | 7.5 mV over full temperature range - ensures ≤0.75% error in 1-V full-scale 12-bit ADC front-end designs. |
| Supply Current per Channel | 205 μA max at 125°C - allows four-channel operation at <820 μA total, critical for multi-sensor nodes with tight power budgets. |
| Output Swing (600 Ω) | Within 120 mV of rails at 125°C - maintains >90% dynamic range for 1.8-V supply systems with minimal headroom loss. |
| Input Common-Mode Range | V− − 0.2 V to V+ + 0.2 V - permits direct sensing of signals below ground or above supply, e.g., shunt-based current monitoring. |
| Operating Temperature | −40°C to +125°C - qualified for industrial and automotive cabin ambient environments without derating. |
Pinout & Package
TSSOP-14 package (5.00 mm × 4.40 mm body size), thermally enhanced for high-density portable PCBs; pin-compatible with SOIC-14 but with 35% smaller footprint and improved thermal resistance (RθJA = 94.4°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| +IN A (Pin 3) | Noninverting input, channel A | Accepts signals up to 0.2 V below V− or 0.2 V above V+, enabling true single-supply level-shifting applications. |
| −IN A (Pin 2) | Inverting input, channel A | Supports precision inverting configurations with matched input bias current (≤50 nA) minimizing offset drift. |
| OUT A (Pin 1) | Output, channel A | Drives 600-Ω loads to within 120 mV of rails at 125°C - sufficient for driving SAR ADC reference buffers or LED bias circuits. |
| +IN B (Pin 5) | Noninverting input, channel B | Electrically isolated from other channels (123 dB isolation) - prevents coupling in multi-channel ECG or EEG front-ends. |
| −IN B (Pin 6) | Inverting input, channel B | Matches −IN A in offset and bias characteristics - essential for differential pair configurations requiring tracking. |
| OUT B (Pin 7) | Output, channel B | Same rail-to-rail performance as OUT A; independent output stage avoids loading effects between channels. |
| +IN C (Pin 10) | Noninverting input, channel C | Validated for same electrical specs as channels A/B - enables three-signal acquisition (e.g., triaxial accelerometer + reference). |
| −IN C (Pin 9) | Inverting input, channel C | Guaranteed matching to other inputs - supports matched gain-setting networks across all four channels. |
| OUT C (Pin 8) | Output, channel C | Capable of sourcing/sinking ≥15 mA at 2.7 V - sufficient for driving small-signal transducers or logic-level comparators. |
| +IN D (Pin 12) | Noninverting input, channel D | Extends system flexibility for fourth analog path - e.g., battery voltage monitor alongside three sensor channels. |
| −IN D (Pin 13) | Inverting input, channel D | Shares same input structure and ESD protection as other inputs - ensures uniform noise and transient response. |
| OUT D (Pin 14) | Output, channel D | Delivers identical AC/DC performance to other outputs - enables synchronized multi-channel signal processing. |
| V+ (Pin 4) | Positive supply | Single connection powers all four amplifiers; no internal supply splitting - simplifies layout and reduces decoupling count. |
| V− (Pin 11) | Negative supply | Accepts ground or negative rail; supports true dual-supply operation (±0.9 V) or single-supply (0 V to 1.8 V) configurations. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full utilization of 1.8-V supply range: input accepts signals from −0.2 V to +2.0 V, output swings to within 80 mV of rails into 600 Ω. |
| 1.8-V optimized architecture | Guarantees 1.4-MHz GBW and 0.35-V/μs slew rate at minimum supply - eliminates need for voltage boosting in ultra-low-power systems. |
| Ultra-low quiescent current | 103–205 μA per channel across temperature - supports always-on sensor nodes with multi-year battery life on coin cells. |
| High DC open-loop gain | ≥72 dB (typ. 101 dB) at 25°C - ensures <0.1% gain error in closed-loop configurations with 100× gain, even at 125°C. |
| 123-dB channel isolation | Prevents signal coupling between adjacent amplifiers - critical for simultaneous multi-electrode biosensing without cross-talk artifacts. |
| −40°C to +125°C operation | Specified performance across full industrial temperature range - removes need for external thermal compensation in embedded control modules. |
Applications
| Wearable Heart Rate Monitor | Portable Blood Glucose Meter |
|---|---|
Use Scenario: Amplifying weak photoplethysmography (PPG) signals from green LEDs reflected off capillary beds in wrist-worn devices. IC Role / Device Role / Timing Role: Quad op-amp configures one channel as transimpedance amplifier for photodiode, two as active filters, and one as reference buffer. Use Value: Rail-to-rail I/O preserves signal fidelity across 1.8-V supply; 100-μA/channel current extends battery life beyond 7 days on CR2032. |
Use Scenario: Conditioning electrochemical current from glucose oxidase enzyme strips, where signal amplitude ranges 10 nA–1 μA. IC Role / Device Role / Timing Role: Configured as precision current-to-voltage converter with programmable gain, followed by anti-aliasing filter. Use Value: 7.5-mV max VOS ensures <1% measurement error at 100-mV full scale; 200-mV beyond-rail CMVR accommodates electrode offset voltages. |
| Smartphone Ambient Light Sensor | Industrial Battery Fuel Gauge |
Use Scenario: Converting current from silicon photodiodes into voltage for ALS algorithms, operating under variable backlight conditions. IC Role / Device Role / Timing Role: Single channel used as transimpedance amplifier; remaining channels idle or repurposed for proximity detection. Use Value: 1.4-MHz GBW supports fast response to light transients; 123-dB isolation prevents display PWM noise coupling into sensor path. |
Use Scenario: Amplifying voltage drop across precision shunt resistors in 2S/3S Li-ion packs for coulomb counting and state-of-charge estimation. IC Role / Device Role / Timing Role: One channel measures shunt voltage; second buffers reference; third conditions thermistor signal; fourth provides fault comparator. Use Value: Guaranteed 1.8-V operation interfaces directly with microcontroller ADCs; 125°C rating supports placement near battery cells. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad rail-to-rail operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP6004-E/ST | Higher 1-μA supply current per channel; 1-MHz GBW; only specified down to 1.8 V with reduced AC performance. | Limited to lower-frequency sensor buffering; unsuitable for 1.8-V audio-path filtering due to bandwidth roll-off. | Select when ultra-low cost outweighs bandwidth and power requirements; verify stability with 1000-pF loads. |
| TSV914IDT | Lower 45-μA supply current; 8-MHz GBW; requires ≥2.7-V supply for full spec compliance. | Not usable in 1.8-V systems; higher bandwidth increases EMI susceptibility in noisy portable environments. | Choose only if system operates ≥2.7 V and demands higher speed; confirm PSRR (70 dB) meets noise rejection needs. |
Compared with MCP6004-E/ST and TSV914IDT, LMV934MTX/NOPB uniquely balances 1.8-V operability, 1.4-MHz bandwidth, and sub-200-μA quiescent current - making it the only quad op-amp qualified for simultaneous low-voltage operation, precision DC gain, and moderate-speed signal conditioning in wearables.
Availability
LMV934MTX/NOPB is available at Aetrix Electronics and suitable for wearable health monitors, portable diagnostic tools, and battery-fueled IoT edge nodes requiring stable component supply across extended production lifecycles.
Supply support for LMV934MTX/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 signal chain solutions.
The LMV93x-N family was designed specifically for battery-constrained portable electronics, emphasizing rail-to-rail operation at 1.8 V, ultra-low quiescent current, and robust performance across industrial temperature ranges.
FAQ
What supply voltage range does the LMV934MTX/NOPB support?
The LMV934MTX/NOPB operates from 1.8 V to 5.5 V, with full electrical specifications guaranteed at 1.8 V, 2.7 V, and 5 V. It is explicitly optimized for 1.8-V operation - delivering 1.4-MHz gain bandwidth and rail-to-rail I/O performance without requiring higher supply rails. This makes LMV934MTX/NOPB ideal for direct integration with single-cell Li-ion batteries and energy-harvesting systems.
Does the LMV934MTX/NOPB support rail-to-rail input and output?
Yes, the LMV934MTX/NOPB features true rail-to-rail input and output. Its input common-mode voltage range extends 200 mV beyond both supply rails (V− − 0.2 V to V+ + 0.2 V), and its output swings to within 80 mV of each rail into a 600-Ω load at 1.8 V. This capability is fully characterized and guaranteed across −40°C to +125°C, enabling high dynamic range in single-supply systems.
What is the maximum input offset voltage for the LMV934MTX/NOPB?
The LMV934MTX/NOPB has a maximum input offset voltage of 7.5 mV over the full temperature range (−40°C to +125°C) at 1.8 V supply. At 25°C, the typical value is 5.5 mV, with a maximum of 5.5 mV for dual/quad variants. This specification ensures predictable DC accuracy in precision sensor interfaces, such as medical-grade biopotential amplifiers or battery voltage monitors.
Is the LMV934MTX/NOPB available in a lead-free, RoHS-compliant package?
Yes, the LMV934MTX/NOPB is manufactured in a lead-free, RoHS-compliant TSSOP-14 package (PW suffix), with NiPdAu terminal finish and halogen-free molding compound. The /NOPB suffix explicitly denotes lead-free packaging per JEDEC J-STD-609, and TI's official documentation confirms full compliance with EU RoHS Directive 2011/65/EU and China RoHS.
How does the LMV934MTX/NOPB perform at high temperature?
The LMV934MTX/NOPB is fully specified from −40°C to +125°C. At 125°C, key parameters include: supply current ≤205 μA per channel, output swing within 120 mV of rails into 600 Ω, and input offset voltage ≤7.5 mV. Its thermal resistance (RθJA = 94.4°C/W in TSSOP-14) ensures reliable operation in enclosed industrial or automotive cabin environments without forced cooling.
Can the LMV934MTX/NOPB drive capacitive loads?
Yes, the LMV934MTX/NOPB is designed to drive up to 1000-pF capacitive loads with minimal ringing, as confirmed in TI's datasheet Figure 21–26. This capability enables direct connection to ADC input capacitors, long PCB traces, or LCD bias networks without external isolation resistors - reducing bill-of-materials count and layout complexity in compact portable designs.
LMV934MTX/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 4
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 0.42V/µs
- Gain Bandwidth Product:
- 1.5 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 14 nA
- Voltage - Input Offset:
- 1 mV
- Current - Supply:
- 116µA (x4 Channels)
- Current - Output / Channel:
- 100 mA
- Voltage - Supply Span (Min):
- 1.8 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-TSSOP
LMV934MTX/NOPB FAQ
1.How can I place an order for LMV934MTX/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV934MTX/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 LMV934MTX/NOPB reliable?
The price and inventory of LMV934MTX/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV934MTX/NOPB is usually 5 days.
3.What payment methods are accepted for LMV934MTX/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV934MTX/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV934MTX/NOPB?
LMV934MTX/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV934MTX/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 LMV934MTX/NOPB?
For technical support, including LMV934MTX/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV934MTX/NOPB requirements.
6.How does Aetrix verify that LMV934MTX/NOPB is sourced from the original manufacturer or authorized distributors?
All LMV934MTX/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 LMV934MTX/NOPB meets industry standards.
7.What is the process for return or replacement of LMV934MTX/NOPB?
All LMV934MTX/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMV934MTX/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 LMV934MTX/NOPB part is unused and in its original packaging.
Return procedure for LMV934MTX/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LMV934MTX/NOPB Tags
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