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Texas Instruments LMV934Q1MT/NOPB
- Part No.:
- LMV934Q1MT/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
LMV934Q1MT/NOPB.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,613
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Product details
Overview
LMV934Q1MT/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, and output swing within 105 mV of rails under 600-Ω load - enabling precision signal conditioning in engine control units and battery management systems.
For engineers reviewing the LMV934Q1MT/NOPB datasheet, LMV934Q1MT/NOPB pinout, LMV934Q1MT/NOPB application, or LMV934Q1MT/NOPB equivalent, key selection criteria include AEC-Q100 Grade 1 qualification (−40°C to +125°C), 200-mV beyond-rail input common-mode range, low-voltage rail-to-rail operation, and TSSOP-14 packaging for space-constrained automotive PCBs.
Technical Context
The LMV934Q1MT/NOPB implements a complementary PNP/NPN input stage enabling rail-to-rail input operation with CMVR extending 200 mV beyond V− and V+, while its output stage uses Class AB architecture to achieve rail-to-rail swing with minimal crossover distortion. It maintains stable unity-gain operation driving up to 1000-pF capacitive loads.
Designed for single-supply automotive systems, it operates across 1.8 V to 5.5 V, supports split-supply configurations, and delivers consistent AC performance (GBW = 1.4–1.5 MHz, SR = 0.35–0.48 V/µs) and DC accuracy (VOS ≤ 5.5 mV, CMRR ≥ 50 dB) across temperature and supply voltage variations.
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 (3.0–4.2 V) and two-cell alkaline (2.4–3.2 V) systems without level-shifting. |
| Gain-Bandwidth Product | 1.4 MHz at 1.8 V - supports closed-loop bandwidths up to ~140 kHz in unity-gain buffer configuration for sensor signal conditioning. |
| Input Offset Voltage | Max 5.5 mV over full temperature range - ensures ≤0.55% error in 1-V full-scale analog front-end applications. |
| Supply Current per Channel | 103–205 μA - allows four-channel operation at <820 μA total, critical for always-on automotive subsystems. |
| Output Swing (600 Ω) | Within 105 mV of rails at 1.8 V - preserves dynamic range in low-voltage ADC driver stages with minimal headroom loss. |
| Input Common-Mode Range | V− − 0.2 V to V+ + 0.2 V - permits sensing signals below ground or above supply (e.g., shunt-based current monitoring). |
| CMRR | Min 50 dB over full temp - rejects common-mode noise from noisy automotive power domains in differential sensing. |
Pinout & Package
LMV934Q1MT/NOPB is housed in a 14-pin TSSOP package (5.00 mm × 4.40 mm body size) with exposed thermal pad for enhanced power dissipation in automotive under-hood environments.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OUT A (Pin 1) | Amplifier A output | Drives external load; rail-to-rail swing supports direct connection to SAR ADC reference inputs or comparator thresholds. |
| −IN A (Pin 2) | Inverting input, Channel A | Accepts feedback network for inverting gain stages; high-impedance node requires guarding in high-noise layouts. |
| +IN A (Pin 3) | Noninverting input, Channel A | Connects to sensor outputs or reference voltages; 200-mV beyond-rail capability enables sub-ground biasing. |
| V− (Pin 11) | Negative supply | Ground reference in single-supply mode; must be decoupled with 0.1-μF ceramic capacitor near pin. |
| V+ (Pin 4) | Positive supply | Accepts 1.8–5.5 V; internal ESD protection rated to ±2000 V HBM ensures robustness in assembly and field operation. |
| +IN B (Pin 5) | Noninverting input, Channel B | Independent input for second signal path; no crosstalk (123 dB isolation) enables simultaneous multi-sensor acquisition. |
| −IN B (Pin 6) | Inverting input, Channel B | Configurable for transimpedance or difference amplification; matched to Channel A for common-mode rejection. |
| OUT B (Pin 7) | Amplifier B output | Electrically isolated from OUT A; supports dual independent feedback loops without interaction. |
| OUT C (Pin 8) | Amplifier C output | Third channel output; identical specs to OUT A/B - enables three-phase motor current sensing or triple-redundant safety monitoring. |
| −IN C (Pin 9) | Inverting input, Channel C | Supports high-side current sense with VCM extended beyond V+ - eliminates need for external level shifters. |
| +IN C (Pin 10) | Noninverting input, Channel C | Accepts high-impedance reference or sensor; paired with −IN C for differential measurement of battery cell voltages. |
| +IN D (Pin 12) | Noninverting input, Channel D | Fourth independent input; enables integrated diagnostics (e.g., self-test voltage injection into all four channels). |
| −IN D (Pin 13) | Inverting input, Channel D | Provides fourth feedback node; supports active filter banks or programmable gain arrays in compact ECUs. |
| OUT D (Pin 14) | Amplifier D output | Final channel output; fully specified for 600-Ω drive - suitable for driving LED bias circuits or analog multiplexer inputs. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for −40°C to +125°C ambient operation - meets thermal requirements for engine bay and transmission control modules. |
| Rail-to-rail input with 200-mV beyond-rail range | Enables direct interfacing to sensors operating outside supply rails (e.g., thermocouples, shunt monitors) without external bias resistors. |
| 100-μA per-channel quiescent current | Reduces system-level power budget by >60% vs. legacy 5-V op-amps - extends battery life in always-on telematics modules. |
| 1.4-MHz GBW at 1.8 V | Delivers usable bandwidth for ultrasonic parking assist (40–80 kHz) and occupant detection signal processing without supply voltage scaling. |
| 123-dB amplifier-to-amplifier isolation | Prevents crosstalk between channels in multi-signal acquisition (e.g., simultaneous wheel speed and brake pressure sensing). |
| Stable driving of 1000-pF capacitive loads | Eliminates need for external isolation resistors when buffering ADC inputs or driving long PCB traces in distributed vehicle networks. |
Applications
| Engine Control Unit (ECU) Sensor Interface | Body Control Module (BCM) Signal Conditioning |
|---|---|
Use Scenario: Amplifying low-level signals from oxygen sensors, knock sensors, and throttle position sensors in gasoline/diesel powertrains. IC Role / Device Role / Timing Role: Quad-channel precision buffer and gain stage; each amplifier independently configured for sensor-specific transfer functions. Use Value: 200-mV beyond-rail input range captures full sensor excursion without clipping; 100-μA/channel current enables always-on diagnostic readiness mode. | Use Scenario: Conditioning analog outputs from door lock actuators, seat position sensors, and ambient light detectors in centralized BCMs. IC Role / Device Role / Timing Role: Multi-channel signal conditioner with independent offset trimming per channel for factory calibration. Use Value: Rail-to-rail output swing maximizes ADC utilization across 1.8–5.5 V supply range; TSSOP-14 footprint saves >30% board area vs. discrete solutions. |
| Battery Management System (BMS) Cell Monitoring | Ultrasonic Ranging for Parking Assist |
Use Scenario: Measuring individual lithium-ion cell voltages and pack current via shunt resistors in 12–48 V EV/HEV battery packs. IC Role / Device Role / Timing Role: High-precision differential amplifier (Ch A/B) and current sense amplifier (Ch C/D) with matched gain paths. Use Value: Input CMVR extending 200 mV beyond V+ allows direct high-side shunt monitoring without level shifters; AEC-Q100 ensures reliability over 15-year vehicle lifetime. | Use Scenario: Amplifying echo signals from 40-kHz ultrasonic transducers in automated parking systems. IC Role / Device Role / Timing Role: Low-noise preamplifier (Ch A) and active filter (Ch B/C/D) for time-of-flight signal extraction. Use Value: 60 nV/√Hz input voltage noise at 10 kHz preserves weak echo SNR; 1.4-MHz GBW supports sharp bandpass filtering around resonant frequency. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMV934QDRQ1 | Tape-and-reel variant in same TSSOP-14 package; identical electrical specs and AEC-Q100 qualification. | No functional difference; intended for automated SMT assembly rather than manual prototyping. | Select LMV934QDRQ1 for high-volume production; LMV934Q1MT/NOPB is preferred for engineering samples and low-volume builds. |
| TSV914IQDT | Higher GBW (8 MHz), higher supply current (150 μA/ch), wider supply range (2.5–5.5 V); not AEC-Q100 qualified. | Suitable for industrial/commercial instrumentation but lacks automotive reliability validation and 1.8-V operation. | Choose TSV914IQDT only if bandwidth >5 MHz is required and automotive qualification is unnecessary. |
Compared with LMV934QDRQ1, LMV934Q1MT/NOPB offers identical performance in a sample-friendly packaging format; versus TSV914IQDT, it trades bandwidth for guaranteed 1.8-V operation, lower power, and full automotive qualification - making it the sole choice for safety-critical, low-voltage automotive signal chains.
Availability
LMV934Q1MT/NOPB is available at Aetrix Electronics and suitable for engine control units, battery management systems, and ultrasonic ranging modules requiring stable component supply across automotive production lifecycles.
Supply support for LMV934Q1MT/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 deep expertise in automotive-grade IC design and manufacturing.
The LMV93x-N-Q1 product line was engineered specifically for low-voltage, low-power signal conditioning in automotive subsystems - prioritizing AEC-Q100 compliance, rail-to-rail functionality, and ultra-small packaging for next-generation ECU and ADAS hardware.
FAQ
What is the maximum operating temperature range for the LMV934Q1MT/NOPB?
The LMV934Q1MT/NOPB is qualified per AEC-Q100 Grade 1 with an ambient operating temperature range of −40°C to +125°C. This rating is validated across all electrical parameters in the datasheet and applies to the full 14-pin TSSOP package, ensuring reliable operation in under-hood and transmission control environments where thermal stress is extreme.
Does the LMV934Q1MT/NOPB support true rail-to-rail input and output operation?
Yes, the LMV934Q1MT/NOPB provides true rail-to-rail input and output operation. 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 105 mV of each rail under 600-Ω load at 1.8 V - confirmed across all four channels in the LMV934Q1MT/NOPB device.
What is the typical supply current per channel for the LMV934Q1MT/NOPB at 1.8 V?
The LMV934Q1MT/NOPB draws a typical supply current of 103 μA per channel at 1.8 V and 25°C, with a maximum of 205 μA over the full temperature range (−40°C to +125°C). This ultra-low quiescent current enables four-channel operation at <820 μA total - ideal for always-on automotive subsystems such as battery monitoring and crash sensors.
Can the LMV934Q1MT/NOPB drive capacitive loads without instability?
Yes, the LMV934Q1MT/NOPB is designed to drive capacitive loads up to 1000 pF with minimal ringing or phase margin degradation. This capability is verified in the datasheet's AC Electrical Characteristics section and enables direct connection to ADC inputs, long PCB traces, or LCD bias networks without requiring external isolation resistors.
Is the LMV934Q1MT/NOPB pin-compatible with other devices in the LMV93x-N-Q1 family?
No - the LMV934Q1MT/NOPB (TSSOP-14) is not pin-compatible with the LMV931-N-Q1 (SOT-23-5/SC-70-5) or LMV932-N-Q1 (SOIC-8). Pin compatibility exists only within the same channel count: LMV934Q1MT/NOPB shares pinout with LMV934QDRQ1 (same TSSOP-14 package), but differs from all other variants in the LMV93x-N-Q1 family.
LMV934Q1MT/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LMV®
- Package/Case:
- 14-TSSOP (0.173", 4.40mm 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
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-TSSOP
LMV934Q1MT/NOPB FAQ
1.How can I place an order for LMV934Q1MT/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV934Q1MT/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 LMV934Q1MT/NOPB reliable?
The price and inventory of LMV934Q1MT/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV934Q1MT/NOPB is usually 5 days.
3.What payment methods are accepted for LMV934Q1MT/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV934Q1MT/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV934Q1MT/NOPB?
LMV934Q1MT/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV934Q1MT/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 LMV934Q1MT/NOPB?
For technical support, including LMV934Q1MT/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV934Q1MT/NOPB requirements.
6.How does Aetrix verify that LMV934Q1MT/NOPB is sourced from the original manufacturer or authorized distributors?
All LMV934Q1MT/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 LMV934Q1MT/NOPB meets industry standards.
7.What is the process for return or replacement of LMV934Q1MT/NOPB?
All LMV934Q1MT/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMV934Q1MT/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 LMV934Q1MT/NOPB part is unused and in its original packaging.
Return procedure for LMV934Q1MT/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LMV934Q1MT/NOPB Tags
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