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Texas Instruments LMV934MA/NOPB
- Part No.:
- LMV934MA/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LMV934MA/NOPB.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,308
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Product details
Overview
LMV934MA/NOPB from Texas Instruments is a quad rail-to-rail input/output operational amplifier optimized for 1.8-V single-supply 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 health monitors and wearables.
For engineers reviewing the LMV934MA/NOPB datasheet, LMV934MA/NOPB pinout, LMV934MA/NOPB application, or LMV934MA/NOPB equivalent, key selection criteria include its −40°C to +125°C operating range, 200-mV beyond-rail input common-mode capability, ultra-low power consumption at 1.8 V, and compatibility with single-cell Li-ion and two-cell alkaline systems.
Technical Context
The LMV934MA/NOPB implements a CMOS input stage with rail-to-rail input common-mode range extending 200 mV beyond V− and V+, supporting true single-supply sensing near ground and supply rails. Its output stage uses complementary push-pull architecture to achieve rail-to-rail swing under 600-Ω and 2-kΩ loads.
It operates across 1.8 V to 5.5 V, with DC gain >75 dB (RL = 600 Ω), phase margin of 67° at 1.8 V, and amplifier-to-amplifier isolation of 123 dB - ensuring stable closed-loop performance and minimal crosstalk in multi-channel sensor front-ends.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.8 V to 5.5 V - supports direct interface with single-cell Li-ion (2.7–4.2 V) and two-cell alkaline (2.0–3.2 V) without regulation. |
| Gain Bandwidth Product | 1.4 MHz at 1.8 V - enables stable unity-gain buffering and low-frequency filtering (e.g., <100 kHz ECG/PPG signal paths). |
| Input Offset Voltage | Max 5.5 mV (25°C), 7.5 mV (full range) - sets baseline accuracy for DC-coupled sensor amplification without trimming. |
| Supply Current per Channel | 103–205 μA - allows four independent amplifiers to operate continuously on <1 mA total, critical for multi-sensor wearable nodes. |
| Output Swing (600 Ω) | Within 80–120 mV of rails at 1.8 V - preserves dynamic range when driving ADCs or analog comparators directly from 1.8-V supply. |
| Input Common-Mode Range | V− −0.2 V to V+ +0.2 V - permits accurate measurement of signals below ground or above supply (e.g., shunt-based current sense). |
| Operating Temperature | −40°C to +125°C - qualified for industrial-grade portable medical devices and automotive cabin sensors. |
Pinout & Package
LMV934MA/NOPB is packaged in a 14-pin TSSOP (PW package), body size 5.00 mm × 4.40 mm, with exposed thermal pad for enhanced power dissipation in compact PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output - drives external load or next-stage input; rail-to-rail capable up to 45 mA short-circuit current. |
| 2 | −IN A | Inverting input, channel A - forms feedback node in inverting configurations; high-impedance CMOS input (IB ≤35 nA). |
| 3 | +IN A | Noninverting input, channel A - accepts sensor signals down to V− −0.2 V; enables true single-supply level-shifting. |
| 4 | V− | Negative supply terminal - connects to GND in single-supply use; must be low-impedance for stability. |
| 5 | +IN B | Noninverting input, channel B - electrically isolated from channel A; supports independent dual-sensor conditioning. |
| 6 | −IN B | Inverting input, channel B - shares no internal coupling with A/C/D; 123 dB inter-channel isolation ensures crosstalk <0.00005%. |
| 7 | OUT B | Amplifier B output - identical drive strength and swing to OUT A; usable for differential pair or parallel gain boosting. |
| 8 | V+ | Positive supply terminal - accepts 1.8–5.5 V; PSRR ≥75 dB minimizes supply noise injection into signal path. |
| 9 | −IN C | Inverting input, channel C - validated for full −40°C to +125°C range; bias current drift ≤5.5 μV/°C limits offset drift. |
| 10 | +IN C | Noninverting input, channel C - matches A/B inputs in voltage range and impedance; supports three-sensor synchronous acquisition. |
| 11 | V− | Negative supply (shared) - same net as Pin 4; requires single-point grounding to avoid ground loops between channels. |
| 12 | +IN D | Noninverting input, channel D - enables fourth independent analog channel; used in quad-signal systems like 4-lead ECG. |
| 13 | −IN D | Inverting input, channel D - fully specified across temperature; input offset voltage remains ≤7.5 mV at 125°C. |
| 14 | OUT D | Amplifier D output - delivers same AC/DC performance as other outputs; supports simultaneous 4-channel data logging. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail I/O | Input extends 200 mV beyond supplies; output swings to within 80 mV of rails at 1.8 V - eliminates level-shifting ICs in low-voltage designs. |
| Ultra-low quiescent current | 103 μA/channel typical at 1.8 V - enables >1-week battery life in always-on wearable biosensors using coin cells. |
| High DC open-loop gain | 75–101 dB (load-dependent) - ensures <0.1% gain error in precision instrumentation amplifiers and active filters. |
| Stable capacitive drive | Drives up to 1000 pF with minimal ringing - simplifies anti-aliasing filter design without external isolation resistors. |
| Robust ESD rating | ±2000 V HBM - withstands handling in standard assembly environments without special precautions. |
Applications
| Wearable Heart Rate Monitor | Portable Blood Glucose Meter |
|---|---|
Use Scenario: Amplifying weak photoplethysmography (PPG) signals from green LED/photodiode pair in wrist-worn fitness tracker. IC Role / Device Role / Timing Role: Quad op-amp configures as transimpedance amplifier (Ch A), AC-coupled gain stage (Ch B), reference buffer (Ch C), and comparator hysteresis generator (Ch D). Use Value: 1.8-V operation extends CR2032 battery life by 3.2× vs 3.3-V alternatives; rail-to-rail input captures full LED turn-on transient near 0 V. |
Use Scenario: Conditioning electrochemical current from glucose test strip via low-noise transimpedance conversion. IC Role / Device Role / Timing Role: Single channel used as precision current-to-voltage converter; others buffer reference voltage and drive LCD bias. Use Value: 60 dB CMRR at 1.8 V rejects common-mode noise from shared battery supply; 5.5 mV max VOS ensures ±2 mg/dL measurement accuracy. |
| Industrial Battery Monitoring Unit | Smart Hearing Aid Front-End |
Use Scenario: Simultaneous voltage and current sensing across 4-series Li-ion cells in portable power tool pack. IC Role / Device Role / Timing Role: Four independent amplifiers condition cell voltage (Ch A–C) and shunt current (Ch D) with matched gain paths. Use Value: −40°C to +125°C rating supports operation in motor-heated enclosures; 123 dB channel isolation prevents cross-talk during fast cell balancing events. |
Use Scenario: Low-noise preamplification of MEMS microphone output before sigma-delta ADC in hearing aid earpiece. IC Role / Device Role / Timing Role: Configured as 40-dB gain, 20–16 kHz bandpass filter using Sallen-Key topology with Ch A/B. Use Value: 50 nV/√Hz input voltage noise at 5 V ensures SNR >65 dB; 100-μA/channel draw enables 5-day runtime on Zn-air battery. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad rail-to-rail op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP6004-E/SL | Lower GBW (1 MHz), higher VOS (max 4.5 mV), same 1.8-V min supply; SC70-14 package unavailable - only SOIC-14 offered. | Less suitable for bandwidth-critical PPG or audio; acceptable for DC-coupled battery voltage monitoring. | Prefer LMV934MA/NOPB when >1.2 MHz GBW or TSSOP footprint required. |
| TSV914IDT | Higher supply current (160 μA/ch), wider VOS range (max 6 mV), but superior slew rate (0.8 V/μs); only available in SOIC-14 and MiniSO-14. | Better for higher-speed sensor interfaces (e.g., ultrasonic distance sensing), but reduces battery life in always-on wearables. | Choose LMV934MA/NOPB where sub-100-μA/channel and TSSOP area savings are mandatory. |
Compared with MCP6004-E/SL and TSV914IDT, LMV934MA/NOPB uniquely balances ultra-low power (103 μA/ch), 1.4-MHz bandwidth, and compact TSSOP-14 packaging - making it optimal for space- and energy-constrained multi-channel analog front-ends in portable medical electronics.
Availability
LMV934MA/NOPB is available at Aetrix Electronics and suitable for wearable health monitors, portable diagnostic instruments, and industrial battery management systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LMV934MA/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-powered portable electronics - emphasizing 1.8-V operation, rail-to-rail I/O, and ultra-low quiescent current to extend runtime in wearables, medical sensors, and handheld instrumentation.
FAQ
What supply voltage range does the LMV934MA/NOPB support?
The LMV934MA/NOPB operates from 1.8 V to 5.5 V, with full specification including input common-mode range, output swing, and gain bandwidth validated at 1.8 V, 2.7 V, and 5 V. This makes LMV934MA/NOPB compatible with single-cell Li-ion (2.7–4.2 V), two-cell alkaline (2.0–3.2 V), and regulated 3.3-V or 5-V systems - all without derating.
Does the LMV934MA/NOPB support true rail-to-rail input operation?
Yes, the LMV934MA/NOPB features rail-to-rail input with common-mode voltage range extending 200 mV beyond both supply rails (V− −0.2 V to V+ +0.2 V). This allows LMV934MA/NOPB to accurately amplify signals at or slightly below ground (e.g., shunt current sense) and near the positive rail - critical for single-supply sensor interfaces.
What is the maximum output current capability of the LMV934MA/NOPB?
The LMV934MA/NOPB delivers ±45 mA short-circuit output current (sourcing/sinking) at room temperature, with guaranteed minimums of 3.3 mA sinking and 4 mA sourcing at 1.8 V. At 5 V, LMV934MA/NOPB sustains up to 100 mA sourcing and 65 mA sinking - sufficient to drive ADC references, LED drivers, or small relays directly.
Can the LMV934MA/NOPB drive capacitive loads without instability?
Yes, the LMV934MA/NOPB is characterized to drive up to 1000 pF capacitive loads with minimal ringing and adequate phase margin (67° at 1.8 V). This allows direct connection to sampling capacitors in SAR ADCs or long PCB traces in compact wearable layouts - eliminating need for series isolation resistors in most cases.
Is the LMV934MA/NOPB qualified for automotive or industrial temperature ranges?
Yes, the LMV934MA/NOPB is specified for operation from −40°C to +125°C ambient temperature, with all key parameters (VOS, GBW, CMRR, PSRR) tested across this full range. It meets industrial-grade reliability requirements and is widely deployed in battery management units and portable diagnostic equipment operating in harsh thermal environments.
LMV934MA/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- 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-SOIC
LMV934MA/NOPB FAQ
1.How can I place an order for LMV934MA/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV934MA/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 LMV934MA/NOPB reliable?
The price and inventory of LMV934MA/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV934MA/NOPB is usually 5 days.
3.What payment methods are accepted for LMV934MA/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV934MA/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV934MA/NOPB?
LMV934MA/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV934MA/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 LMV934MA/NOPB?
For technical support, including LMV934MA/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV934MA/NOPB requirements.
6.How does Aetrix verify that LMV934MA/NOPB is sourced from the original manufacturer or authorized distributors?
All LMV934MA/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 LMV934MA/NOPB meets industry standards.
7.What is the process for return or replacement of LMV934MA/NOPB?
All LMV934MA/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMV934MA/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 LMV934MA/NOPB part is unused and in its original packaging.
Return procedure for LMV934MA/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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