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Texas Instruments LMV934MT/NOPB
- Part No.:
- LMV934MT/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
LMV934MT/NOPB.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:625
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Product details
Overview
LMV934MT/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 30 mV of rails under 2-kΩ load. It serves as a low-power signal conditioning and sensor interface IC in battery-powered portable electronics.
For engineers reviewing the LMV934MT/NOPB datasheet, LMV934MT/NOPB pinout, LMV934MT/NOPB application, or LMV934MT/NOPB equivalent, key selection criteria include its 1.8-V minimum supply capability, −40°C to +125°C operating range, rail-to-rail I/O performance, and TSSOP-14 packaging suitable for space-constrained PCB layouts in wearables and health monitors.
Technical Context
The LMV934MT/NOPB implements a CMOS input stage enabling rail-to-rail input common-mode voltage range extending 200 mV beyond supplies (V− −0.2 V to V+ +0.2 V), and a push-pull output stage supporting rail-to-rail swing with 600-Ω and 2-kΩ loads. Its 1.4-MHz GBW and 0.35–0.42 V/µs slew rate are specified across 1.8 V to 5 V supplies.
Designed for single-supply operation in portable systems, it achieves 101-dB open-loop DC gain and 75–100-dB PSRR/CMRR over temperature, while driving up to 1000-pF capacitive loads with minimal ringing-enabling direct connection to ADC inputs or analog front-end filters without external buffering.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.8 V to 5.5 V - supports direct integration into single-cell Li-ion (2.7–4.2 V) and two-cell alkaline (2.4–3.2 V) systems without LDO pre-regulation. |
| Gain Bandwidth Product | 1.4 MHz at 1.8 V - enables stable unity-gain buffer or gain-of-10 amplification up to ~140 kHz in low-voltage sensor signal chains. |
| Supply Current per Channel | 103–205 μA - allows four independent amplifiers to operate continuously on <1 mA total, critical for multi-sensor battery life extension. |
| Input Offset Voltage | Max 7.5 mV over full temperature range - ensures ≤0.75% error in 1-V full-scale medical sensor outputs without trimming. |
| Output Swing (2-kΩ) | Within 24–40 mV of rails at 1.8–5 V - permits full utilization of 12-bit ADC input range in single-supply data acquisition. |
| Input Common-Mode Range | V− −0.2 V to V+ +0.2 V - enables biasing input signals below ground or above V+ in level-shifting and high-side current sensing. |
| Operating Temperature | −40°C to +125°C - qualified for automotive cabin modules and industrial handheld test equipment without derating. |
Pinout & Package
TSSOP-14 package (5.00 mm × 4.40 mm body size) with exposed pad for thermal enhancement; RoHS-compliant, lead-free (NOPB suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 7, 8, 14 | OUT A, OUT B, OUT C, OUT D | Amplifier output terminals - each drives 600-Ω load to within 105 mV of rails at 1.8 V, enabling direct connection to SAR ADCs or LED drivers. |
| 2, 6, 9, 13 | −IN A, −IN B, −IN C, −IN D | Inverting inputs - high-impedance CMOS nodes (IB ≤35 nA) suited for precision transducer interfaces and active filters. |
| 3, 5, 10, 12 | +IN A, +IN B, +IN C, +IN D | Noninverting inputs - accept common-mode voltages 200 mV beyond supply rails, enabling true single-supply operation with ground-referenced sensors. |
| 4 | V− | Negative supply terminal - tied to GND in single-supply configurations; supports split-supply operation down to −0.3 V. |
| 11 | V+ | Positive supply terminal - accepts 1.8–5.5 V; decoupling capacitor required at this pin for stability with capacitive loads. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full dynamic range utilization in 1.8-V systems - no level-shifting circuitry needed for microcontroller ADC interfacing. |
| 100-μA per-channel quiescent current | Supports always-on sensor monitoring in wearable devices with multi-day battery life on coin cells or small Li-po batteries. |
| 1.4-MHz GBW at 1.8 V | Provides sufficient bandwidth for ECG, pulse oximetry, and environmental sensor signal conditioning without compromising power efficiency. |
| Stable driving of 1000-pF capacitive loads | Eliminates need for isolation resistors when connecting directly to long PCB traces or LCD bias networks. |
| −40°C to +125°C operation | Meets extended temperature requirements for automotive infotainment touch controllers and industrial handheld diagnostics tools. |
Applications
| Portable Health Monitors | Smart Wearables |
|---|---|
Use Scenario: Amplifying weak bio-potential signals (ECG, EMG) from dry electrodes in wrist-worn fitness trackers. IC Role / Device Role / Timing Role: Quad-channel instrumentation amplifier front-end providing gain, filtering, and rail-to-rail buffering before 12-bit ADC sampling. Use Value: 100-μA/channel current enables continuous 24/7 monitoring on a 100-mAh battery for >7 days; rail-to-rail I/O maximizes SNR with 1.8-V MCU ADC reference. |
Use Scenario: Signal conditioning for ambient light, temperature, and motion sensors in compact smart rings or earbuds. IC Role / Device Role / Timing Role: Multi-function analog front-end handling sensor offset correction, gain adjustment, and low-pass filtering prior to MCU ADC conversion. Use Value: TSSOP-14 footprint fits sub-10-mm² PCB area; 1.8-V operation matches energy-harvesting PMIC output, eliminating voltage translation. |
| Battery Fuel Gauging | Industrial Handheld Testers |
Use Scenario: High-accuracy voltage and current sensing in lithium-ion battery packs for state-of-charge estimation. IC Role / Device Role / Timing Role: Precision current-sense amplifier (high-side) and cell-voltage monitor with rail-to-rail input for direct connection to shunt and divider networks. Use Value: Input CMVR extending 0.2 V beyond rails allows accurate measurement at battery end-of-discharge (≤2.5 V) without external biasing. |
Use Scenario: Analog signal conditioning in portable multimeters and insulation testers requiring wide temperature operation. IC Role / Device Role / Timing Role: Quad op-amp implementing auto-ranging attenuators, offset nulling, and anti-alias filtering for dual-slope ADC subsystems. Use Value: 125°C rating ensures reliability during extended field use in hot environments; 7.5-mV max VOS maintains ±0.1% measurement accuracy across temperature. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP6004-E/ST | Lower GBW (1 MHz), higher VOS (max 4.5 mV), same 1.8-V min supply and RRIO architecture. | Less suitable for >100-kHz sensor bandwidths; better for ultra-low-power (<60 μA/ch) but lower-precision applications. | Select when absolute lowest quiescent current is prioritized over bandwidth and offset performance. |
| TSV914IDT | Higher GBW (8 MHz), higher supply current (150 μA/ch), same TSSOP-14 package and −40°C to +125°C rating. | Better for active filter stages requiring >1-MHz closed-loop bandwidth; trades power for speed in audio or fast-response control loops. | Select when system requires >5× bandwidth headroom and can accommodate +50% per-channel current increase. |
Compared with MCP6004-E/ST and TSV914IDT, LMV934MT/NOPB delivers optimal balance of 1.4-MHz bandwidth, 100-μA/channel consumption, and 7.5-mV max VOS across −40°C to +125°C - making it the preferred choice for precision, low-power, wide-temperature portable instrumentation where both speed and efficiency matter.
Availability
LMV934MT/NOPB is available at Aetrix Electronics and suitable for portable health monitors, smart wearables, battery fuel gauging, and industrial handheld testers requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LMV934MT/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 rail-to-rail operation at 1.8 V, ultra-low quiescent current, and robust performance across automotive and industrial temperature ranges.
FAQ
What supply voltage range does the LMV934MT/NOPB support?
The LMV934MT/NOPB operates from 1.8 V to 5.5 V, making it compatible with single-cell Li-ion (2.7–4.2 V), two-cell alkaline (2.4–3.2 V), and regulated 3.3-V or 5-V systems. Its guaranteed functionality at 1.8 V enables direct integration into energy-harvesting and ultra-low-power designs without intermediate regulation - a key advantage over amplifiers requiring ≥2.7 V minimum supply.
Is the LMV934MT/NOPB truly rail-to-rail on both input and output?
Yes, the LMV934MT/NOPB features rail-to-rail input and output. Its input common-mode voltage range extends 200 mV beyond the supply rails (V− −0.2 V to V+ +0.2 V), and its output swings to within 30 mV of each rail under 2-kΩ load at 1.8 V. This eliminates the need for external level-shifting circuitry when interfacing with 1.8-V microcontrollers or ADCs - a verified specification confirmed across all operating temperatures.
What is the maximum output current capability of the LMV934MT/NOPB?
The LMV934MT/NOPB delivers ±25 mA short-circuit output current (sinking/sourcing) at 2.7 V and ±65 mA at 5 V, with typical sourcing current of 80 mA and sinking current of 58 mA at 5 V. Under normal linear operation with 600-Ω load, it sustains rail-to-rail swing while delivering up to ±15 mA - sufficient for driving LEDs, small relays, or ADC input buffers without external transistors.
Does the LMV934MT/NOPB require external compensation for stability?
No, the LMV934MT/NOPB is unity-gain stable and does not require external compensation. It maintains ≥67° phase margin driving 600-Ω resistive loads and remains stable with up to 1000-pF capacitive loads - a design feature validated in TI's datasheet Figure 21–26. This simplifies layout by eliminating series isolation resistors typically needed with less robust amplifiers.
How does the LMV934MT/NOPB perform in high-temperature environments?
The LMV934MT/NOPB is fully specified from −40°C to +125°C, with parameters including input offset voltage (max 7.5 mV), supply current (205 μA max), and output swing (within 180 mV of rails at 125°C) guaranteed across this range. Its thermal resistance (RθJA = 94.4°C/W in TSSOP-14) and 150°C absolute max junction temperature ensure reliable operation in sealed enclosures or automotive cabin locations without forced cooling.
LMV934MT/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- 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 (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-TSSOP
LMV934MT/NOPB FAQ
1.How can I place an order for LMV934MT/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV934MT/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 LMV934MT/NOPB reliable?
The price and inventory of LMV934MT/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV934MT/NOPB is usually 5 days.
3.What payment methods are accepted for LMV934MT/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV934MT/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV934MT/NOPB?
LMV934MT/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV934MT/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 LMV934MT/NOPB?
For technical support, including LMV934MT/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV934MT/NOPB requirements.
6.How does Aetrix verify that LMV934MT/NOPB is sourced from the original manufacturer or authorized distributors?
All LMV934MT/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 LMV934MT/NOPB meets industry standards.
7.What is the process for return or replacement of LMV934MT/NOPB?
All LMV934MT/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMV934MT/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 LMV934MT/NOPB part is unused and in its original packaging.
Return procedure for LMV934MT/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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