LMV844QMA Texas Instruments Integrated Circuit (Other) In Stock
LMV844QMA is a quad low-voltage voltage-feedback operational amplifier from Texas Instruments, featuring 800 µV maximum input offset voltage, 86 dB minimum CMRR, and 0.3 nA bias current for precision low-power signal processing. Available in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Other
- Pin Count
- 14
- Lifecycle
- OBSOLETE
- Datasheet
- LMV844QMA Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LMV844QMA?
- Quad op-amp with 800 µV maximum input offset voltage and 106 dB typical CMRR for precision signal conditioning
- Ultra-low bias current of 0.01 nA typical at 25°C minimizes errors in high-impedance sensor interface circuits
- Voltage-feedback architecture with frequency compensation enables stable gain from low-power 2.7 V to 5.5 V supplies
What is LMV844QMA used for?
LMV844QMA is used in precision sensor signal conditioning, where its 800 µV offset and 0.3 nA maximum bias current preserve accuracy in bridge amplifier and photodiode transimpedance circuits operating from 2.7 V to 5.5 V rails. The quad channel count makes it efficient for multi-channel data acquisition front ends and audio filtering applications in portable devices. Its low-voltage operation also suits battery-powered industrial instruments and medical monitoring equipment requiring four simultaneous amplification channels in a compact package.
What are the specifications of LMV844QMA?
| Pbfree Code | No |
| YTEOL | 0 |
| Amplifier Type | OPERATIONAL AMPLIFIER |
| Architecture | VOLTAGE-FEEDBACK |
| Average Bias Current-Max (IIB) | 0.0003 µA |
| Bias Current-Max (IIB) @25C | 0.00001 µA |
| Common-mode Reject Ratio-Min | 86dB |
| Common-mode Reject Ratio-Nom | 106dB |
| Frequency Compensation | YES |
| Input Offset Voltage-Max | 800 µV |
| JESD-30 Code | R-PDSO-G14 |
| Low-Bias | YES |
| Low-Offset | YES |
| Micropower | NO |
| Neg Supply Voltage Limit-Max | -6.6 V |
| Neg Supply Voltage-Nom (Vsup) | -5 V |
| Number of Functions | 4 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP14,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Packing Method | TUBE |
| Peak Reflow Temperature (Cel) | NOT SPECIFIED |
| Power | NO |
| Programmable Power | NO |
| Screening Level | AEC-Q100 |
| Slew Rate-Nom | 2.5V/us |
| Supply Current-Max | 8mA |
| Supply Voltage Limit-Max | 6.6V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | AUTOMOTIVE |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | NOT SPECIFIED |
| Unity Gain BW-Nom | 4500 |
| Voltage Gain-Min | 100000 |
| Wideband | NO |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.33.00.01 |
Where can I find the LMV844QMA datasheet?
LMV844QMA Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for LMV844QMA?
Compatible alternatives and drop-in replacements for LMV844QMA:
Amplifier, 4 Func, 800uV Offset-Max, CMOS, PDSO14
Frequently Asked Questions
What is the input offset voltage and bias current specification of LMV844QMA for precision sensor applications?
LMV844QMA specifies a maximum input offset voltage of 800 µV and a maximum bias current of 0.3 nA, with a typical bias current of only 0.01 nA at 25°C. These parameters make it well-suited for high-impedance sensor interfaces such as photodiode amplifiers and bridge transducers, where even small offset or bias errors can degrade measurement accuracy across the 4 amplifier channels.
How does the 86 dB minimum CMRR of LMV844QMA benefit differential sensor measurements compared to general-purpose op-amps?
With a minimum common-mode rejection ratio of 86 dB and a typical CMRR of 106 dB, LMV844QMA suppresses common-mode noise by at least 63,000:1 in the worst case. This level of rejection is critical in differential bridge sensor circuits powered at 3.3 V, where mains-frequency interference or switching regulator ripple would otherwise appear as measurement error in pressure, temperature, or strain gauge readouts.
Can LMV844QMA replace a standard 5 V quad op-amp in a 3.3 V battery-powered data acquisition system?
Yes. LMV844QMA is designed for low-voltage operation starting from 2.7 V, making it a direct functional replacement for 5 V quad op-amps in systems transitioning to 3.3 V supply rails. Its 800 µV offset and 86 dB CMRR are retained at the lower supply voltage, and the frequency-compensated voltage-feedback architecture maintains stability across 4 channels, supporting multi-channel ADC front ends without redesigning the gain stage.
What package is LMV844QMA housed in and what assembly consideration applies to its Pb-free status?
LMV844QMA is housed in a QMA package (SOT-23 8-pin compatible surface-mount outline) and carries Pb-free code No, meaning this variant uses standard tin-lead solder finish rather than lead-free plating. Designers targeting RoHS compliance must verify the assembly process temperature profile accordingly, as the standard eutectic solder peak temperature of 183°C applies, versus the 217°C to 221°C peak for Pb-free SAC alloys.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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