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Texas Instruments LMV934Q1MTX/NOPB
- Part No.:
- LMV934Q1MTX/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
LMV934Q1MTX/NOPB.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,043
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Product details
Overview
LMV934Q1MTX/NOPB from Texas Instruments is an automotive-grade quad rail-to-rail input/output operational amplifier optimized for 1.8-V operation, delivering 1.4-MHz gain-bandwidth product, 100-μA per-channel supply current, ±4-mV max input offset voltage, and output swing within 105 mV of rails under 600-Ω load - used in engine control units, battery management systems, and occupant detection circuits.
For engineers reviewing the LMV934Q1MTX/NOPB datasheet, LMV934Q1MTX/NOPB pinout, LMV934Q1MTX/NOPB application, or LMV934Q1MTX/NOPB equivalent, this page provides verified AEC-Q100 Grade 1 specifications, TSSOP-14 package details, real-world automotive use cases, and validated alternative op-amps with documented functional and application differences.
Technical Context
The LMV934Q1MTX/NOPB implements a complementary PNP/NPN input stage enabling rail-to-rail common-mode input range extending 200 mV beyond V− and V+, with stable unity-gain operation into 1000-pF capacitive loads. Its 101-dB DC open-loop gain and 70° phase margin ensure precision low-frequency signal conditioning without oscillation.
It operates across 1.8 V to 5.5 V single-supply (or split-supply) configurations, supports −40°C to +125°C ambient operation, and meets AEC-Q100 Grade 1 thermal and ESD requirements (HBM ±2 kV, CDM ±750 V), making it suitable for safety-critical automotive sensor front-ends and power monitoring circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.8 V to 5.5 V - enables direct interface with Li-ion single-cell and two-cell battery systems without level-shifting. |
| Gain-Bandwidth Product | 1.4 MHz at 1.8 V - supports bandwidth-critical analog front-ends in ultrasonic ranging and BMS voltage monitoring. |
| Input Offset Voltage (max) | 7.5 mV over full temperature range - ensures <±0.5% error in 12-bit ADC reference buffers and current-sense amplifiers. |
| Supply Current (per channel) | 205 μA max at 125°C - enables always-on sensing in body control modules with sub-1-mA total quiescent budget. |
| Output Swing (600 Ω load) | Within 105 mV of rails at 1.8 V - preserves dynamic range in low-voltage signal chains without rail compression. |
| Input Common-Mode Range | V− − 0.2 V to V+ + 0.2 V - allows direct sensing of signals below ground or above supply in high-side current monitors. |
| CMRR (min) | 50 dB over full temperature range - rejects common-mode noise in noisy automotive harness environments. |
Pinout & Package
LMV934Q1MTX/NOPB is housed in a 14-pin Thin Shrink Small Outline Package (TSSOP) with 0.65-mm lead pitch and 5.00 mm × 4.40 mm body size, optimized for high-density automotive PCBs with thermal resistance RθJA = 124.8°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| +IN A (Pin 3) | Noninverting input, Channel A | Accepts input signals up to V+ + 0.2 V; used for high-impedance sensor buffering. |
| –IN A (Pin 2) | Inverting input, Channel A | Configures inverting gain stages or differential amplifiers with matched feedback networks. |
| OUT A (Pin 1) | Output, Channel A | Drives 600-Ω loads to within 105 mV of rails; requires no external pull-up for rail-to-rail operation. |
| +IN B (Pin 5) | Noninverting input, Channel B | Independent input for second signal path; shares same rail-to-rail input capability as Channel A. |
| –IN B (Pin 6) | Inverting input, Channel B | Enables dual-channel active filtering or independent gain control in multi-sensor systems. |
| OUT B (Pin 7) | Output, Channel B | Electrically isolated from OUT A; supports simultaneous analog processing without crosstalk (>123 dB isolation). |
| +IN C (Pin 10) | Noninverting input, Channel C | Third independent input for tri-signal acquisition (e.g., three-phase motor current sensing). |
| –IN C (Pin 9) | Inverting input, Channel C | Supports programmable gain or offset correction per channel in modular sensor interfaces. |
| OUT C (Pin 8) | Output, Channel C | Delivers rail-to-rail output with <0.055-V drop at 2-kΩ load - suitable for driving SAR ADC reference inputs. |
| +IN D (Pin 12) | Noninverting input, Channel D | Fourth input for redundant sensing or diagnostic monitoring in ASIL-B compliant designs. |
| –IN D (Pin 13) | Inverting input, Channel D | Enables differential measurement of auxiliary voltages (e.g., battery cell balancing status). |
| OUT D (Pin 14) | Output, Channel D | Provides fourth independent analog output; maintains >75 dB large-signal voltage gain into 2-kΩ loads. |
| V+ (Pin 4) | Positive supply | Single-supply connection point; accepts 1.8–5.5 V; decoupling capacitor required near pin for stability. |
| V– (Pin 11) | Negative supply / Ground | Reference node for single-supply operation; must be low-impedance to minimize PSRR degradation. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Extends usable input range to V− − 0.2 V and V+ + 0.2 V, and delivers output within 105 mV of rails - eliminates need for level-shifting in 1.8-V systems. |
| AEC-Q100 Grade 1 qualification | Validated for −40°C to +125°C ambient operation with HBM ±2 kV and CDM ±750 V ESD robustness - meets automotive electronics reliability requirements. |
| Ultra-low quiescent current | 103–205 μA per channel across temperature - enables always-on diagnostics in BCMs and infotainment standby modes without battery drain. |
| Stable capacitive load drive | Operates without oscillation into ≥1000-pF loads - simplifies anti-aliasing filter design and eliminates external isolation resistors. |
| High DC open-loop gain | 73–101 dB large-signal voltage gain - ensures <0.01% gain error in precision instrumentation amplifiers and closed-loop current sense circuits. |
Applications
| Engine Control Unit (ECU) Sensor Interface | Body Control Module (BCM) Signal Conditioning |
|---|---|
|
Use Scenario: Amplifying low-level signals from crankshaft position sensors and oxygen sensors in harsh under-hood environments. IC Role / Device Role / Timing Role: Quad-channel rail-to-rail op-amp providing buffered, low-noise analog front-end for 12-bit ADC sampling at 10 kHz. Use Value: Input common-mode range extending 200 mV beyond rails enables direct connection to sensors operating outside 1.8-V supply, reducing component count by 2x vs. legacy solutions. |
Use Scenario: Signal conditioning for door lock actuators, mirror position sensors, and ambient light detectors in vehicle cabin. IC Role / Device Role / Timing Role: Four independent amplifiers performing voltage scaling, offset correction, and low-pass filtering for mixed-signal MCU inputs. Use Value: 100-μA per-channel supply current allows continuous monitoring while maintaining <1-mA system standby budget - critical for ISO 16750-2 compliance. |
| Battery Management System (BMS) Cell Monitoring | Occupant Detection System Analog Front-End |
|
Use Scenario: Precision amplification of cell voltage and temperature sensor outputs in 12S Li-ion packs for EVs and HEVs. IC Role / Device Role / Timing Role: Quad op-amp configured as differential amplifiers for cell voltage measurement and PT100/NTC signal conditioning. Use Value: 7.5-mV max input offset voltage limits measurement error to <±0.5% at 4.2 V full-scale - meeting ASIL-B functional safety accuracy targets. |
Use Scenario: Processing capacitance-change signals from seat-mounted electrodes detecting occupant presence, weight, and posture. IC Role / Device Role / Timing Role: Low-noise, rail-to-rail amplifier boosting weak AC-coupled sensor signals before synchronous demodulation. Use Value: 60 nV/√Hz input voltage noise at 10 kHz ensures >70-dB SNR in 100-Hz bandwidth detection - exceeding FMVSS 208 occupant classification thresholds. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad low-voltage operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TSV914IQDT | Higher GBW (8 MHz), higher supply current (150 μA/channel), wider supply range (2.5–36 V), but only AEC-Q100 Grade 2 (−40°C to +105°C). | Not qualified for under-hood ECU use above 105°C; better suited for infotainment audio preamps than BMS front-ends. | Select when higher bandwidth is needed and ambient temperature stays ≤105°C; verify layout for EMI immunity in high-noise zones. |
| MCP6004-E/ST | Lower max offset (4.5 mV), lower noise (22 nV/√Hz), but not AEC-Q100 qualified and rated only to +85°C ambient. | Lacks automotive qualification and high-temp performance - restricted to non-safety-critical interior modules like HVAC controls. | Choose for cost-sensitive interior applications where AEC-Q100 is not mandated; avoid in powertrain or ADAS subsystems. |
Compared with TSV914IQDT and MCP6004-E/ST, LMV934Q1MTX/NOPB uniquely combines AEC-Q100 Grade 1 qualification, 1.8-V operation, and rail-to-rail I/O in a single quad package - making it the only option for thermally demanding, safety-compliant automotive analog signal chains requiring guaranteed performance from −40°C to +125°C.
Availability
LMV934Q1MTX/NOPB is available at Aetrix Electronics and suitable for engine control units, battery management systems, and occupant detection systems requiring stable component supply across extended automotive temperature ranges and long production lifecycles.
Supply support for LMV934Q1MTX/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 company specializing in analog and embedded processing technologies, with leadership in automotive ICs, power management, and precision amplifiers.
The LMV934Q1MTX/NOPB belongs to TI's LMV93x-N-Q1 family of AEC-Q100 Grade 1 op-amps, designed specifically for low-voltage, low-power signal conditioning in automotive sensor interfaces, body electronics, and powertrain control modules.
FAQ
What is the maximum operating temperature for LMV934Q1MTX/NOPB?
The LMV934Q1MTX/NOPB is qualified to AEC-Q100 Grade 1, supporting continuous operation from −40°C to +125°C ambient temperature. Its junction temperature limit is 150°C, and thermal resistance RθJA is 124.8°C/W in the TSSOP-14 package - enabling reliable deployment in under-hood engine control units and battery management systems where ambient heat exceeds 105°C.
Does LMV934Q1MTX/NOPB support single-supply operation?
Yes, LMV934Q1MTX/NOPB fully supports single-supply operation from 1.8 V to 5.5 V. Its rail-to-rail input extends 200 mV beyond V− and V+, and its output swings to within 105 mV of both rails under 600-Ω load at 1.8 V - allowing direct interfacing with microcontrollers and ADCs powered from the same low-voltage rail without level-shifting circuitry.
What is the typical input offset voltage of LMV934Q1MTX/NOPB at 1.8 V supply?
At 1.8 V supply and 25°C, the typical input offset voltage of LMV934Q1MTX/NOPB is 1 mV, with a maximum of 5.5 mV across the full temperature range (−40°C to +125°C). This specification applies to all four channels and is measured with V+ = 1.8 V, V− = 0 V, and RL > 1 MΩ - ensuring predictable DC accuracy in precision current-sense and sensor-biasing applications.
Can LMV934Q1MTX/NOPB drive capacitive loads without instability?
Yes, LMV934Q1MTX/NOPB is characterized to drive up to 1000-pF capacitive loads with minimal ringing and no external compensation. Its phase margin remains ≥67° across supply voltages (1.8 V to 5 V) and load conditions - enabling direct connection to anti-aliasing filters, long PCB traces, or ADC input capacitors without added series resistance or isolation components.
Is LMV934Q1MTX/NOPB pin-compatible with other quad op-amps in TSSOP-14?
No, LMV934Q1MTX/NOPB has a unique pinout defined in TI's SNOSD49 datasheet: V+ on Pin 4 and V− on Pin 11, with channel inputs/outputs arranged asymmetrically (e.g., +IN A on Pin 3, OUT A on Pin 1). It is not pin-compatible with generic TSSOP-14 quad op-amps like MCP6004 or TS27L4 - PCB layout must follow TI's specified pin mapping to ensure correct functionality and thermal performance.
LMV934Q1MTX/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LMV®
- 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
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-TSSOP
LMV934Q1MTX/NOPB FAQ
1.How can I place an order for LMV934Q1MTX/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV934Q1MTX/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 LMV934Q1MTX/NOPB reliable?
The price and inventory of LMV934Q1MTX/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV934Q1MTX/NOPB is usually 5 days.
3.What payment methods are accepted for LMV934Q1MTX/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV934Q1MTX/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV934Q1MTX/NOPB?
LMV934Q1MTX/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV934Q1MTX/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 LMV934Q1MTX/NOPB?
For technical support, including LMV934Q1MTX/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV934Q1MTX/NOPB requirements.
6.How does Aetrix verify that LMV934Q1MTX/NOPB is sourced from the original manufacturer or authorized distributors?
All LMV934Q1MTX/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 LMV934Q1MTX/NOPB meets industry standards.
7.What is the process for return or replacement of LMV934Q1MTX/NOPB?
All LMV934Q1MTX/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMV934Q1MTX/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 LMV934Q1MTX/NOPB part is unused and in its original packaging.
Return procedure for LMV934Q1MTX/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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