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Texas Instruments LMV822DG4
- Part No.:
- LMV822DG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LMV822DG4.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,975
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Product details
Overview
LMV822DG4 from Texas Instruments is a dual, rail-to-rail output operational amplifier optimized for low-voltage (2.5 V to 5.5 V), low-power applications. It delivers 5.5 MHz gain bandwidth, 1.9 V/μs slew rate, and 0.5 mA typical supply current per amplifier at 5 V - enabling precision signal conditioning in space-constrained portable electronics such as sensor front-ends and battery-powered data acquisition systems.
For engineers reviewing the LMV822DG4 datasheet, LMV822DG4 pinout, LMV822DG4 application, or LMV822DG4 equivalent, key selection criteria include its rail-to-rail output swing (4.85 V high / 0.17 V low at 5 V, RL = 600 Ω), input common-mode range extending to ground, and guaranteed operation from –40°C to 85°C in SOIC-8 packaging.
Technical Context
The LMV822DG4 implements a CMOS input stage with rail-to-rail output stage, supporting single-supply operation down to 2.5 V while maintaining low crossover distortion and stable unity-gain performance. Its internal architecture enables full output swing within 15 mV of VCC+ and 170 mV of GND at 5 V with 600 Ω load.
It features 72 dB minimum CMRR and 75 dB minimum PSRR over –40°C to 85°C, with amplifier-to-amplifier isolation exceeding 135 dB at 1 kHz - critical for dual-channel signal paths requiring minimal crosstalk in mixed-signal PCB layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.5 V to 5.5 V - supports direct integration into 3.3 V and 5 V systems without level-shifting. |
| Gain Bandwidth Product | 5.5 MHz typ at 5 V - enables stable closed-loop operation up to ~500 kHz with moderate gain (e.g., AV = 10). |
| Slew Rate | 1.9 V/μs typ at 5 V - supports clean 100-kHz sine-wave output at ±2 V amplitude without distortion. |
| Input Offset Voltage | 4 mV max over –40°C to 85°C - ensures ≤20 mV error in unity-gain buffer configurations with 5 V span. |
| Output Swing (RL = 600 Ω) | 0.17 V to 4.85 V at 5 V - delivers >96% of rail-to-rail dynamic range for ADC driver stages. |
| Supply Current (per amp) | 0.7 mA max over temperature - allows dual-channel amplification in sub-1 mA total system budget. |
| Common-Mode Input Range | –0.2 V to 4.3 V at 5 V - accepts signals referenced to ground, simplifying sensor interfacing. |
Pinout & Package
LMV822DG4 is housed in an 8-pin SOIC (D) package with standard 1.27 mm pitch, 3.9 mm × 4.9 mm footprint, and exposed thermal pad not present - suitable for reflow assembly and manual prototyping.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output - drives loads up to 20 mA sourcing/sinking; rail-to-rail swing. |
| 2 | IN− A | Inverting input for Amplifier A - high-impedance CMOS node (IIB < 150 nA). |
| 3 | IN+ A | Non-inverting input for Amplifier A - accepts DC-coupled signals down to ground. |
| 4 | GND / VCC− | Ground reference and negative supply terminal - shared return path for both amplifiers. |
| 5 | IN+ B | Non-inverting input for Amplifier B - electrically isolated from Channel A per datasheet isolation spec. |
| 6 | IN− B | Inverting input for Amplifier B - matched bias current and offset characteristics to Channel A. |
| 7 | OUT B | Amplifier B output - identical drive capability and swing to Pin 1. |
| 8 | VCC+ | Positive supply input - operates from 2.5 V to 5.5 V; decoupling capacitor required at pin. |
Key Features
| Feature | Design Value |
|---|---|
| No Crossover Distortion | Eliminates notch distortion in Class-AB output stage, preserving fidelity in audio and sensor signal chains. |
| Rail-to-Rail Output | Delivers full dynamic range to downstream ADCs or analog comparators without headroom loss. |
| Low 0.5 mA Supply Current | Enables dual op-amp functionality in ultra-low-power IoT nodes where μA-level quiescent budgets dominate. |
| 5.5 MHz GBW at 5 V | Supports active filtering (e.g., 2nd-order anti-aliasing) with phase margin >64° at unity gain. |
| Specified –40°C to 85°C | Validated performance across industrial ambient range without derating or thermal monitoring. |
Applications
| Portable Sensor Signal Conditioning | Low-Voltage Data Acquisition Front-End |
|---|---|
Use Scenario: Amplifying microvolt-level outputs from thermistors, RTDs, or bridge sensors in handheld medical devices. IC Role / Device Role / Timing Role: Dual-channel instrumentation amplifier front-end with one channel for gain, one for reference buffering. Use Value: Rail-to-rail output swing maximizes ADC utilization; low supply current extends battery life in AA/AAA-powered units. | Use Scenario: Driving SAR ADC inputs in battery-operated environmental monitors measuring temperature, humidity, and CO₂. IC Role / Device Role / Timing Role: Single-supply ADC driver with fast settling (≤1 μs to 0.1% for 2 V step) and low THD (0.01%). Use Value: 5.5 MHz GBW ensures accurate sampling of 100-kHz sensor bandwidths; 135 dB channel isolation prevents cross-talk between analog inputs. |
| Industrial Process Control Loop | Consumer Audio Line Driver |
Use Scenario: Closed-loop current/voltage control in 24 V DC-powered PLC I/O modules with 3.3 V microcontroller interface. IC Role / Device Role / Timing Role: Dual op-amp implementing PID compensation and output buffer in analog feedback path. Use Value: Guaranteed operation to 85°C enables placement near heat-generating power stages; 72 dB CMRR rejects field-induced common-mode noise. | Use Scenario: Line-level output stage in Bluetooth speakers and portable DACs operating from single 3.3 V or 5 V rail. IC Role / Device Role / Timing Role: Dual-channel line driver with DC-coupled inputs and low-noise (42 nV/√Hz) performance. Use Value: No crossover distortion preserves harmonic integrity below 20 kHz; rail-to-rail swing delivers full 2 Vpp line signal without clipping. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMV822DR | Identical electrical specs and SOIC-8 pinout; same marking "MV822" and temperature range (–40°C to 85°C). | No functional difference; differs only in tape-and-reel packaging (2500/reel vs. tube of 100 for DG4). | Select LMV822DR for automated SMT production; LMV822DG4 suits low-volume prototyping or repair due to tube packaging. |
| TLV2462IDR | Higher 6.4 MHz GBW and lower 0.65 mV VIO max, but 0.65 mA ICC max - slightly higher power and cost. | Better DC precision and AC performance; qualified for extended temperature (–40°C to 125°C) but not required for 85°C-limited designs. | Choose TLV2462IDR when tighter offset or wider bandwidth justifies added cost; LMV822DG4 remains optimal for cost-sensitive 85°C applications. |
Compared with LMV822DR, LMV822DG4 offers identical performance in tube packaging for flexibility in small-batch builds; versus TLV2462IDR, it trades minor AC/DC performance for lower unit cost and proven qualification in consumer-grade industrial environments.
Availability
LMV822DG4 is available at Aetrix Electronics and suitable for portable sensor signal conditioning, low-voltage data acquisition front-ends, and industrial process control loops requiring stable component supply across extended product lifecycles.
Supply support for LMV822DG4 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 delivering analog, embedded processing, and connectivity solutions with broad industrial, automotive, and personal electronics reach.
The LMV8xx family was designed specifically for cost-sensitive, low-voltage, rail-to-rail output applications where space, power, and precision must coexist - targeting portable instrumentation, sensor interfaces, and battery-powered signal chains.
FAQ
What is the operating temperature range for LMV822DG4?
The LMV822DG4 is characterized for operation from –40°C to +85°C. This range is explicitly confirmed in the TI datasheet SLOS434I under "Recommended Operating Conditions" and applies to all electrical specifications unless otherwise noted. The LMV822DG4 is not rated for the extended –40°C to 125°C range - that specification belongs to the LMV822IDG4 variant.
Does LMV822DG4 support true rail-to-rail input?
No, LMV822DG4 does not support rail-to-rail input. Its common-mode input voltage range is specified as –0.2 V to 4.3 V at 5 V supply, meaning the inputs operate down to 0.2 V below ground but only up to 0.7 V below VCC+. While the output is rail-to-rail, the input stage requires ≥0.2 V headroom from VCC+ and can accept signals at ground - making it ground-sensing but not full rail-to-rail input.
What is the maximum output current capability of LMV822DG4?
At 5 V supply, LMV822DG4 delivers ±20 mA typical sourcing/sinking current before clipping, with guaranteed minimum of ±15 mA over –40°C to 85°C. This is verified in the "5-V Electrical Characteristics" table under IO parameter, tested with VO = 0 V (sourcing) and VO = 5 V (sinking). Drive capability degrades slightly at lower supplies (e.g., ±12 mA at 2.7 V).
Is LMV822DG4 pin-compatible with other dual op-amps in SOIC-8?
LMV822DG4 uses the industry-standard dual op-amp SOIC-8 pinout (Pin 1 = OUT A, Pin 2 = IN− A, Pin 3 = IN+ A, Pin 4 = GND, Pin 5 = IN+ B, Pin 6 = IN− B, Pin 7 = OUT B, Pin 8 = VCC+), matching LMV358, TLV2462, and MCP6022. However, electrical behavior (GBW, slew rate, input stage) differs - verify loop stability and noise performance before substitution.
What decoupling is recommended for LMV822DG4?
Texas Instruments recommends a 0.1 μF ceramic capacitor placed as close as possible to Pin 8 (VCC+) and Pin 4 (GND), with optional 1–10 μF bulk capacitance on the same supply rail. This configuration suppresses high-frequency supply noise and maintains phase margin above 64°, as validated in Figure 17 of the SLOS434I datasheet under 5 V, RL = 600 Ω conditions.
LMV822DG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LMV®
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 1.9V/µs
- Gain Bandwidth Product:
- 5.5 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 40 nA
- Voltage - Input Offset:
- 1 mV
- Current - Supply:
- 500µA
- 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
LMV822DG4 FAQ
1.How can I place an order for LMV822DG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV822DG4 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 LMV822DG4 reliable?
The price and inventory of LMV822DG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV822DG4 is usually 5 days.
3.What payment methods are accepted for LMV822DG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV822DG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV822DG4?
LMV822DG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV822DG4 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 LMV822DG4?
For technical support, including LMV822DG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV822DG4 requirements.
6.How does Aetrix verify that LMV822DG4 is sourced from the original manufacturer or authorized distributors?
All LMV822DG4 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 LMV822DG4 meets industry standards.
7.What is the process for return or replacement of LMV822DG4?
All LMV822DG4 units undergo pre-shipment inspection (PSI). If there is an issue with LMV822DG4, 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 LMV822DG4 part is unused and in its original packaging.
Return procedure for LMV822DG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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