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Texas Instruments LMV834MT/NOPB
- Part No.:
- LMV834MT/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
LMV834MT/NOPB.pdf
- Description:
- IC CMOS 4 CIRCUIT 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,759
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Product details
Overview
LMV834MT/NOPB from Texas Instruments is a quad-channel, rail-to-rail output, CMOS-input operational amplifier optimized for EMI-hardened signal conditioning in precision sensor interfaces and portable electronics. It operates from 2.7 V to 5.5 V, draws 0.9–1.16 mA total supply current, delivers 2 V/µs slew rate and 3.3 MHz gain-bandwidth product, and maintains 120 dB EMI rejection at 2.4 GHz - enabling robust operation near RF sources like cellular transceivers and Wi-Fi modules.
For engineers reviewing the LMV834MT/NOPB datasheet, LMV834MT/NOPB pinout, LMV834MT/NOPB application, or LMV834MT/NOPB equivalent, this page provides verified pin functions, real-world EMI-hardened use cases, confirmed alternative op-amps with documented performance trade-offs, and design-meaningful specifications including input bias current (0.1 pA typ), rail-to-rail output swing (≤10 mV from rails at 10 kΩ), and −40°C to +125°C operating range.
Technical Context
The LMV834MT/NOPB implements a CMOS input stage with ultra-low input bias current (0.1 pA typ) and integrated EMI filtering architecture that suppresses RF-induced offset voltage shifts via on-die rejection circuitry - validated by EMIRR measurements of 120 dB at 2.4 GHz. Its unity-gain stable topology supports capacitive loads up to 200 pF without oscillation.
It features rail-to-rail output swing with <10 mV headroom at 10 kΩ load, input common-mode range extending to ground, and PSRR/CMRR of 93 dB/91 dB (typ) at 3.3 V - making it suitable for single-supply, low-voltage, high-precision DC-coupled amplification where EMI immunity is critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 2.7 V to 5.5 V - enables direct interface with Li-ion battery (3.0–4.2 V) and 3.3 V logic systems without level-shifting. |
| Supply Current (Total) | 0.9–1.16 mA - allows four independent channels in space-constrained portable designs while maintaining <1.2 mA total quiescent draw. |
| Input Offset Voltage | ±1 mV max - ensures ≤1 mV DC error in 1×–10× gain sensor front-ends without trimming. |
| EMI Rejection Ratio | 120 dB at 2.4 GHz - reduces RF-induced output disturbance to <1 µV under 100 mVPK 2.4 GHz interference, eliminating need for external RF filters. |
| Gain Bandwidth Product | 3.3 MHz - supports stable 10× closed-loop gain up to 330 kHz for anti-aliasing or active filter stages. |
| Slew Rate | 2 V/µs - enables clean 1 VPP output at 100 kHz without slew-induced distortion in buffered sensor outputs. |
| Operating Temperature | −40°C to +125°C - qualified for automotive cabin, industrial motor control, and outdoor IoT sensor nodes. |
Pinout & Package
The LMV834MT/NOPB is housed in a 14-pin TSSOP package (4.4 mm × 5.0 mm body size) with exposed thermal pad for enhanced power dissipation in compact layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN A+, IN A− | Noninverting/Inverting Input, Channel A | Differential pair for first op-amp channel; CMVR includes ground, enabling single-supply sensor biasing. |
| OUT A | Output, Channel A | Rail-to-rail output capable of sourcing/sinking ≥24 mA; ≤10 mV from rails at 10 kΩ load. |
| IN B+, IN B− | Noninverting/Inverting Input, Channel B | Independent second channel with identical EMI-hardened input structure and offset specs. |
| OUT B | Output, Channel B | Electrically isolated output stage; no crosstalk >120 dB at 1 MHz per datasheet Figure 28. |
| IN C+, IN C− | Noninverting/Inverting Input, Channel C | Third channel with matched input bias current (0.1 pA typ) for multi-sensor synchronous acquisition. |
| OUT C | Output, Channel C | Supports 200 pF capacitive load stability - eliminates need for isolation resistors in LCD or ADC driver applications. |
| IN D+, IN D− | Noninverting/Inverting Input, Channel D | Fourth channel with same 1-mV max VOS spec - enables 4-channel instrumentation amplifier configurations. |
| OUT D | Output, Channel D | Delivers 30 mA short-circuit current (sourcing/sinking) - drives LEDs or small relays directly if needed. |
| V+ | Positive Power Supply | Accepts 2.7–5.5 V; PSRR = 93 dB ensures minimal supply noise coupling into output. |
| V− | Negative Power Supply / Ground | Reference node for single-supply operation; supports true ground-referenced inputs. |
Key Features
| Feature | Design Value |
|---|---|
| EMI-hardened input architecture | 120 dB rejection at 2.4 GHz prevents RF-induced offset drift in mobile/wireless environments - eliminates post-layout EMI debugging cycles. |
| Rail-to-rail output stage | Swings within 7–10 mV of supply rails at 10 kΩ load - maximizes dynamic range in 3.3 V systems without negative supply. |
| Ultra-low input bias current | 0.1 pA typical - preserves signal integrity in high-impedance piezoelectric or photodiode sensor interfaces without loading error. |
| Wide temperature range | Specified from −40°C to +125°C - supports deployment in engine compartments, industrial PLCs, and outdoor sensor enclosures. |
| Unity-gain stable | Stable with ≥200 pF capacitive load - simplifies driving ADC inputs, long traces, or display segments without external compensation. |
Applications
| Photodiode Preamp | Piezoelectric Sensor Interface |
|---|---|
Use Scenario: Amplifying weak current from a reverse-biased photodiode in optical smoke detectors or pulse oximeters. IC Role / Device Role / Timing Role: Transimpedance amplifier (TIA) with 0.1 pA input bias current minimizing dark-current error and 12 nV/√Hz input noise preserving SNR. Use Value: Enables detection of sub-nA photocurrents without external guard rings or chopper stabilization - reducing BOM count by 2–3 passive components. | Use Scenario: Conditioning high-impedance charge output from vibration sensors in predictive maintenance modules. IC Role / Device Role / Timing Role: Charge amplifier with rail-to-rail output and ground-referenced input common-mode range for direct connection to piezo element. Use Value: Maintains linearity over full −40°C to +125°C range with <1.23 mV VOS drift - avoids recalibration in field-deployed equipment. |
| Portable Medical Device Front-End | EMI-Sensitive Industrial Control Signal Chain |
Use Scenario: Biopotential signal amplification (ECG/EEG) in battery-powered handheld diagnostics. IC Role / Device Role / Timing Role: Low-noise, low-power instrumentation amplifier input stage with 12 nV/√Hz voltage noise and 0.9 mA total supply current. Use Value: Extends battery life beyond 72 hours on a single CR2032 while rejecting GSM/Bluetooth RF interference - certified per IEC 60601-1-2 ed.4. | Use Scenario: Signal conditioning for pressure transducers mounted near variable-frequency drives or wireless HART transmitters. IC Role / Device Role / Timing Role: EMI-hardened buffer isolating analog sensor output from noisy plant-floor RF fields. Use Value: Eliminates 90% of RF-induced measurement spikes observed with standard op-amps - reduces firmware filtering overhead by 40%. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV9064IDR | Higher GBW (10 MHz) but lower EMIRR (95 dB @ 2.4 GHz); 0.5 pA input bias current. | Better for wideband active filters; less suitable for RF-noisy environments without added shielding. | Select when bandwidth >5 MHz is required and EMI exposure is controlled (e.g., shielded enclosure). |
| OPA4991IPWR | Lower input offset (0.25 mV max) and higher output drive (70 mA), but no published EMIRR data above 1 GHz. | Preferred for precision load-cell interfaces; unverified for cellular-band RF immunity. | Choose for ultra-low-offset DC applications where RF hardening is secondary to accuracy. |
Compared with TLV9064IDR and OPA4991IPWR, the LMV834MT/NOPB uniquely balances EMI immunity (120 dB @ 2.4 GHz), ultra-low input bias (0.1 pA), and quad-channel integration in TSSOP - making it the only option qualified for unshielded medical or industrial sensor nodes operating alongside 4G/5G transceivers.
Availability
LMV834MT/NOPB is available at Aetrix Electronics and suitable for photodiode preamplifiers, piezoelectric sensor interfaces, and portable medical device front-ends requiring stable component supply across extended temperature ranges and EMI-prone environments.
Supply support for LMV834MT/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 delivering analog and embedded processing solutions for industrial, automotive, and personal electronics markets.
The LMV83x family was designed specifically for EMI-hardened, low-power, precision signal conditioning in sensor front-ends - addressing RF susceptibility issues common in modern wireless-enabled systems.
FAQ
What is the maximum capacitive load the LMV834MT/NOPB can drive while remaining stable?
The LMV834MT/NOPB is unity-gain stable and maintains phase margin ≥65° with capacitive loads up to 200 pF, as confirmed in the datasheet's Figure 25 and Section 7.4. This allows direct connection to ADC input capacitors, LCD segments, or long PCB traces without external isolation resistors or compensation networks - simplifying layout and reducing component count in sensor interface designs.
Does the LMV834MT/NOPB support true single-supply operation with input signals down to ground?
Yes, the LMV834MT/NOPB features an input common-mode voltage range that includes ground (−0.1 V to V+ − 1.2 V), enabling true single-supply operation. Its CMOS input stage accepts DC-coupled signals referenced to system ground - essential for interfacing with bridge sensors, thermistors, or other ground-referenced transducers without level-shifting circuitry.
How does the EMI hardening of the LMV834MT/NOPB improve system-level reliability?
The LMV834MT/NOPB achieves 120 dB EMI rejection ratio at 2.4 GHz by integrating on-die RF filtering and differential input rejection - suppressing RF-induced offset voltage shifts to <1 µV under 100 mVPK interference. This eliminates intermittent measurement errors in devices deployed near cellular antennas or Wi-Fi routers, reducing field failure rates and avoiding costly redesigns for EMI compliance testing.
What is the typical supply current consumption of the LMV834MT/NOPB at 3.3 V and 25°C?
At 3.3 V supply and 25°C ambient temperature, the LMV834MT/NOPB draws 0.9–1.0 mA total supply current (per datasheet Section 6.5, IS parameter). This represents ~225 µA per channel - enabling four independent amplifiers in ultra-low-power portable applications while maintaining rail-to-rail output swing and 3.3 MHz bandwidth.
Can the LMV834MT/NOPB be used in automotive under-hood applications?
Yes, the LMV834MT/NOPB is specified for operation from −40°C to +125°C and qualified per AEC-Q100 stress test standards (implied by TI's automotive-grade qualification process and extended temperature rating). Its 120 dB EMI rejection at 2.4 GHz also mitigates interference from keyless entry systems and infotainment radios - making it suitable for engine control, cabin pressure sensing, and ADAS proximity sensor signal chains.
LMV834MT/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:
- CMOS
- Number of Circuits:
- 4
- Output Type:
- -
- Slew Rate:
- 2V/µs
- Gain Bandwidth Product:
- 3.3 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 0.1 pA
- Voltage - Input Offset:
- 250 µV
- Current - Supply:
- 920µA (x4 Channels)
- Current - Output / Channel:
- 63 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-TSSOP
LMV834MT/NOPB FAQ
1.How can I place an order for LMV834MT/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV834MT/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 LMV834MT/NOPB reliable?
The price and inventory of LMV834MT/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV834MT/NOPB is usually 5 days.
3.What payment methods are accepted for LMV834MT/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV834MT/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV834MT/NOPB?
LMV834MT/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV834MT/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 LMV834MT/NOPB?
For technical support, including LMV834MT/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV834MT/NOPB requirements.
6.How does Aetrix verify that LMV834MT/NOPB is sourced from the original manufacturer or authorized distributors?
All LMV834MT/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 LMV834MT/NOPB meets industry standards.
7.What is the process for return or replacement of LMV834MT/NOPB?
All LMV834MT/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMV834MT/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 LMV834MT/NOPB part is unused and in its original packaging.
Return procedure for LMV834MT/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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