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Texas Instruments LMV822M
- Part No.:
- LMV822M
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LMV822M.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:843
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Product details
Overview
LMV822M from Texas Instruments is a dual, rail-to-rail output (RRO), low-voltage operational amplifier optimized for 2.5 V to 5.5 V single-supply operation. It delivers 5 MHz gain-bandwidth product, 1.4 V/µs slew rate, and 220 µA per amplifier supply current at 2.7 V - enabling precision signal conditioning in space-constrained portable electronics such as laptops and cellular handsets.
For engineers reviewing the LMV822M datasheet, LMV822M pinout, LMV822M application, or LMV822M equivalent, key selection criteria include its guaranteed rail-to-rail output swing into 600 Ω (≤160 mV from rail), 3.5 mV max input offset voltage, −40°C to +85°C industrial temperature range, and SOIC-8/VSSOP-8 package compatibility.
Technical Context
The LMV822M employs a CMOS input stage with rail-to-rail output architecture, supporting true single-supply operation down to 2.5 V while maintaining stable performance with capacitive loads up to several hundred picofarads. Its input common-mode range includes ground (−0.3 V to 4.3 V at 5 V supply), enabling direct interfacing with ADCs and sensors operating near ground potential.
Designed for low-noise, low-distortion amplification, it achieves 24 nV/√Hz input voltage noise at 1 kHz and 0.01% THD+N at 1 kHz with 4.1 VPP output into 10 kΩ. Phase margin remains ≥61° across load conditions (600 Ω to 10 kΩ) and supply voltages (2.7 V and 5 V), ensuring robust stability without external compensation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.5 V to 5.5 V - supports direct integration into Li-ion–powered systems and 3.3 V logic rails. |
| Gain-Bandwidth Product | 5 MHz at 2.7 V - enables stable unity-gain buffering and closed-loop amplification up to ~100 kHz with moderate gain. |
| Slew Rate | 1.4 V/µs (min) - sufficient for audio-band signals and fast-settling sensor interfaces without distortion. |
| Input Offset Voltage | 3.5 mV (max) - ensures ≤0.7% error in 500 mV full-scale differential sensing applications. |
| Rail-to-Rail Output Swing | 160 mV from rail into 600 Ω - preserves dynamic range in low-voltage data acquisition stages. |
| Quiescent Current | 0.45 mA (typ) for dual channel at 2.7 V - extends battery life in always-on portable subsystems. |
| CMRR / PSRR | 90 dB / 85 dB - rejects power supply ripple and common-mode interference in noisy embedded environments. |
Pinout & Package
LMV822M is available in SOIC-8 (4.90 mm × 3.91 mm) and VSSOP-8 (3.00 mm × 3.00 mm) packages. Both variants share identical pinout and electrical behavior.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting Input (Channel A) | Accepts feedback network connection for standard op-amp configurations (inverting amp, transimpedance). |
| 2 | Non-Inverting Input (Channel A) | Direct interface point for high-impedance sensors or reference voltage sources. |
| 3 | Output (Channel A) | Delivers rail-to-rail output swing into loads ≥600 Ω; drives ADC inputs or analog switches directly. |
| 4 | Negative Supply (V−) | Ground-referenced node in single-supply operation; must be connected to system GND. |
| 5 | Non-Inverting Input (Channel B) | Enables independent signal conditioning path for dual-channel applications (e.g., stereo audio, dual-sensor readout). |
| 6 | Inverting Input (Channel B) | Supports matched dual-channel topology with identical gain and bandwidth characteristics as Channel A. |
| 7 | Output (Channel B) | Electrically isolated from Channel A output; maintains >135 dB inter-channel isolation at 1 kHz. |
| 8 | Positive Supply (V+) | Accepts 2.5–5.5 V DC; internal regulation ensures consistent biasing across supply variation. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-Rail Output (RRO) | Swings within 160 mV of supply rails into 600 Ω - maximizes usable output voltage range in low-voltage systems. |
| Low Input Offset Drift | 1 µV/°C TCVOS - minimizes thermal-induced error drift in temperature-variable environments (e.g., automotive cabin modules). |
| Stable with Capacitive Loads | Operates unconditionally stable with CL ≤ 500 pF - eliminates need for isolation resistors in ADC driver or filter applications. |
| High Common-Mode Rejection | 90 dB CMRR - suppresses ground bounce and supply coupling in mixed-signal PCB layouts. |
| Automotive-Qualified Variant Available | LMV822-N-Q1 meets AEC-Q100 Grade 1 (−40°C to +125°C) - enables reuse of LMV822M design in qualified automotive subsystems. |
Applications
| Portable Audio Amplification | Medical Sensor Signal Conditioning |
|---|---|
|
Use Scenario: Amplifying microphone or piezoelectric sensor outputs in handheld ultrasound or pulse oximeter devices. IC Role / Device Role / Timing Role: Dual-channel instrumentation amplifier front-end with matched gain and offset for differential signal extraction. Use Value: 24 nV/√Hz input noise and 0.01% THD+N preserve weak biological signal fidelity; RRO output drives 12-bit SAR ADCs directly. |
Use Scenario: Conditioning low-level ECG or EEG electrode signals in battery-powered patient monitors. IC Role / Device Role / Timing Role: Low-power, rail-to-rail input/output op-amp in active filter and level-shifting stages. Use Value: 3.5 mV max VOS and 1 µV/°C drift ensure baseline stability over clinical operating temperatures; 220 µA per channel extends runtime. |
| Laptop Battery Monitoring | Industrial Analog I/O Modules |
|
Use Scenario: Measuring cell voltage and current sense resistor drops in multi-cell Li-ion battery packs. IC Role / Device Role / Timing Role: Precision difference amplifier and buffer for ADC input scaling networks. Use Value: Input common-mode range extending to −0.3 V allows accurate zero-current measurement; 5 MHz GBW supports fast transient detection. |
Use Scenario: Signal conditioning for 4–20 mA loop receivers and thermocouple amplifiers in PLC analog input cards. IC Role / Device Role / Timing Role: Dual op-amp providing simultaneous gain/offset adjustment and output buffering. Use Value: 85 dB PSRR rejects 50/60 Hz line noise; SOIC-8 footprint enables compact, manufacturable layout on industrial PCBs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual low-voltage op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2462IDR | Higher quiescent current (550 µA vs. 450 µA typ), wider GBW (6.4 MHz), but higher VOS (4.5 mV max). | Better AC performance at cost of power efficiency; less suitable for ultra-low-power always-on monitoring. | Select TLV2462IDR only when >5 MHz bandwidth or faster settling is required and supply current budget permits. |
| MCP6022-I/SN | Lower supply current (180 µA typ), but reduced GBW (10 MHz only at 5 V; degrades to ~2.5 MHz at 2.7 V) and no AEC-Q100 variant. | Optimized for lowest power, not wideband operation; lacks automotive qualification path. | Choose MCP6022-I/SN for longest battery life where bandwidth <3 MHz suffices and automotive compliance is unnecessary. |
Compared with TLV2462IDR and MCP6022-I/SN, LMV822M uniquely balances 5 MHz bandwidth, sub-500 µA supply current, rail-to-rail output, and AEC-Q100-qualified derivative - making it optimal for dual-channel, low-voltage, cost-sensitive industrial and portable designs requiring proven reliability.
Availability
LMV822M is available at Aetrix Electronics and suitable for laptop battery management, portable medical instrumentation, and industrial analog I/O modules requiring stable component supply across extended production lifecycles.
Supply support for LMV822M 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 op-amp design and manufacturing.
The LMV82x family was engineered specifically for low-voltage, low-power signal conditioning in portable and battery-operated systems - emphasizing rail-to-rail operation, micropower efficiency, and robustness across consumer, industrial, and automotive temperature ranges.
FAQ
What is the maximum operating temperature for LMV822M?
The LMV822M is specified for operation from −40°C to +85°C under recommended conditions. This industrial temperature range ensures reliable performance in laptops, PDAs, and industrial control modules exposed to ambient thermal variations. The automotive-grade LMV822-N-Q1 variant extends this to −40°C to +125°C, but LMV822M itself is rated strictly to +85°C.
Does LMV822M support true single-supply operation with input signals at ground?
Yes, LMV822M supports true single-supply operation with input common-mode voltage ranging from −0.3 V to 4.3 V at 5 V supply - including ground (0 V). This allows direct connection to grounded sensors or DAC outputs without level-shifting circuitry, simplifying design in 3.3 V or 5 V systems where the negative rail is tied to GND.
Can LMV822M drive a 10 kΩ load with rail-to-rail output swing?
Yes, LMV822M achieves rail-to-rail output swing within 55 mV of each supply rail when driving a 10 kΩ load - significantly tighter than the 160 mV specification for 600 Ω loads. At 5 V supply, this yields >4.9 V output swing, preserving >98% of full-scale dynamic range for high-resolution ADC interfacing.
Is LMV822M pin-compatible with other dual op-amps in SOIC-8 or VSSOP-8 packages?
LMV822M uses the industry-standard dual op-amp pinout (pin 1 = In− A, pin 2 = In+ A, pin 3 = Out A, pin 4 = V−, pin 5 = In+ B, pin 6 = In− B, pin 7 = Out B, pin 8 = V+), matching TLV2462, MCP6022, and many others. However, electrical behavior (GBW, VOS, supply current) differs - verify schematic and layout compatibility before substitution.
What is the typical supply current per amplifier in LMV822M at 3.3 V?
At 3.3 V supply, LMV822M draws approximately 0.5 mA total (0.25 mA per amplifier), interpolated from the 0.45 mA typical value at 2.7 V and 0.7 mA at 5 V. This low quiescent current enables efficient use in always-on sensor nodes and portable equipment where standby power is critical.
LMV822M Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LMV®
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 2V/µs
- Gain Bandwidth Product:
- 5.6 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 40 nA
- Voltage - Input Offset:
- 1 mV
- Current - Supply:
- 500µA (x2 Channels)
- Current - Output / Channel:
- 45 mA
- Voltage - Supply Span (Min):
- 2.5 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
LMV822M FAQ
1.How can I place an order for LMV822M through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV822M 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 LMV822M reliable?
The price and inventory of LMV822M are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV822M is usually 5 days.
3.What payment methods are accepted for LMV822M?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV822M transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV822M?
LMV822M orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV822M 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 LMV822M?
For technical support, including LMV822M datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV822M requirements.
6.How does Aetrix verify that LMV822M is sourced from the original manufacturer or authorized distributors?
All LMV822M 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 LMV822M meets industry standards.
7.What is the process for return or replacement of LMV822M?
All LMV822M units undergo pre-shipment inspection (PSI). If there is an issue with LMV822M, 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 LMV822M part is unused and in its original packaging.
Return procedure for LMV822M:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LMV822M Tags
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LM358DT
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LM358DR
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