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Texas Instruments LMV822DGKRG4
- Part No.:
- LMV822DGKRG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
LMV822DGKRG4.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,636
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Product details
Overview
LMV822DGKRG4 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 interfaces and battery-powered instrumentation.
For engineers reviewing the LMV822DGKRG4 datasheet, LMV822DGKRG4 pinout, LMV822DGKRG4 application, or LMV822DGKRG4 equivalent, key selection criteria include its rail-to-rail output swing (4.84 V high / 0.25 V low at 5 V, RL = 600 Ω), input offset voltage ≤4 mV over –40°C to 85°C, and MSOP-8 (DGK) package compatibility with high-density PCB layouts.
Technical Context
The LMV822DGKRG4 implements a CMOS-input, rail-to-rail output op-amp architecture with no crossover distortion, supporting single-supply operation down to 2.5 V. Its input common-mode range extends to ground, and it maintains stable unity-gain performance with capacitive loads up to 22 pF.
Designed for cost-sensitive, low-power systems, it achieves higher bandwidth and faster slew rate than the LMV3xx family while retaining similar quiescent current and rail-to-rail output behavior - making it suitable for driving ADC inputs, active filters, and transimpedance stages where dynamic response and headroom are critical.
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 logic domains 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 - ensures faithful reproduction of signals up to ~300 kHz at 1 Vpp without slew-induced distortion. |
| Input Offset Voltage | ≤4 mV max over –40°C to 85°C - minimizes DC error in precision gain stages and sensor amplifiers. |
| Rail-to-Rail Output Swing | 0.25 V above GND / 4.84 V below VCC+ at 5 V, RL = 600 Ω - maximizes dynamic range in single-supply data acquisition. |
| Supply Current | 0.5 mA typ per amplifier at 5 V - allows dual-channel operation within 1 mA total, ideal for battery longevity. |
| Input Common-Mode Range | Includes ground (–0.2 V to 4.3 V at 5 V) - enables direct interfacing with 0 V-referenced sensors and DAC outputs. |
Pinout & Package
LMV822DGKRG4 is housed in an 8-pin MSOP (VSSOP) package (DGK), measuring 3.0 mm × 3.0 mm × 1.0 mm, with exposed thermal pad for enhanced power dissipation in compact layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT1 | Amplifier 1 output - drives loads up to ±20 mA; rail-to-rail swing supports full-scale ADC input drive. |
| 2 | IN−1 | Inverting input of Amp 1 - high-impedance CMOS node; requires matched trace routing for noise immunity. |
| 3 | IN+1 | Non-inverting input of Amp 1 - accepts signals from 0 V to VCC; enables ground-referenced sensor biasing. |
| 4 | GND / VCC− | Ground reference and negative supply terminal - shared return path for both amplifiers; must be low-impedance. |
| 5 | VCC+ | Positive supply input - decoupling capacitor (0.1 μF) required adjacent to pin for stability. |
| 6 | IN+2 | Non-inverting input of Amp 2 - independent channel; supports differential pair or dual-sensor configurations. |
| 7 | IN−2 | Inverting input of Amp 2 - electrically isolated from Amp 1 inputs; enables independent feedback networks. |
| 8 | OUT2 | Amplifier 2 output - identical performance to OUT1; amplifier-to-amplifier isolation >135 dB prevents crosstalk. |
Key Features
| Feature | Design Value |
|---|---|
| No Crossover Distortion | Eliminates switching artifacts in Class AB output stage, preserving THD <0.01% at 1 kHz - critical for audio and precision analog front-ends. |
| Rail-to-Rail Output | Delivers >95% of full supply swing into 600 Ω - maximizes SNR when driving SAR or sigma-delta ADCs directly. |
| Low Input Bias Current | ≤150 nA max over temperature - reduces voltage error across high-impedance sources (e.g., pH electrodes, photodiodes). |
| High CMRR | ≥70 dB over –40°C to 85°C - rejects common-mode noise in noisy industrial environments or unshielded sensor cables. |
| Amplifier Isolation | >135 dB at 1 kHz - prevents signal coupling between channels in dual-signal-path designs like stereo audio or differential sensing. |
Applications
| Portable Medical Sensors | Industrial Process Monitoring |
|---|---|
Use Scenario: Amplifying low-level signals from ECG electrodes or temperature RTDs in handheld diagnostic devices. IC Role / Device Role / Timing Role: Dual-channel signal conditioner - one amp for sensor excitation/reference, the other for buffered output to ADC. Use Value: Rail-to-rail output and ground-sensing input enable full utilization of 3.3 V ADC input range without external level-shifting components. | Use Scenario: Signal conditioning for 4–20 mA loop receivers and pressure transducer interfaces in factory automation. IC Role / Device Role / Timing Role: Precision buffer and gain stage - rejects common-mode noise on long sensor wires while maintaining linearity. Use Value: 70 dB CMRR and ≤4 mV VIO ensure accurate measurement under EMI-rich plant-floor conditions. |
| Battery-Powered Instrumentation | Consumer Audio Line Drivers |
Use Scenario: Driving analog outputs in handheld multimeters and portable oscilloscopes with limited battery capacity. IC Role / Device Role / Timing Role: Low-power gain block - provides programmable gain with minimal quiescent draw. Use Value: 0.5 mA per amplifier allows dual-channel operation within 1 mA total, extending AA/AAA battery life by >30% vs. legacy op-amps. | Use Scenario: Single-supply headphone driver or line-out buffer in Bluetooth speakers and smart assistants. IC Role / Device Role / Timing Role: Output interface amplifier - delivers clean, low-distortion signal to capacitive loads. Use Value: No crossover distortion and 1.9 V/μs slew rate preserve audio fidelity up to 20 kHz without audible artifacts. |
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 |
|---|---|---|---|
| LMV358DR | Lower GBW (1 MHz), slower slew rate (0.45 V/μs), higher VIO (7 mV max), but same DGK package and 2.7–5.5 V range. | Acceptable for DC-coupled sensor buffers where bandwidth <100 kHz suffices; not suitable for fast-settling ADC drivers. | Select LMV358DR only if cost is primary concern and performance margin allows relaxed AC specs. |
| TLV2462IDGKR | Higher VCC+ max (6 V), lower VIO (1.8 mV typ), higher ICC (0.65 mA per amp), same DGK package and rail-to-rail I/O. | Better for precision applications requiring sub-mV offset and wider supply margin, at modest current penalty. | Choose TLV2462IDGKR when offset drift and supply headroom outweigh strict current budget constraints. |
Compared with LMV358DR, LMV822DGKRG4 delivers 5.5× higher bandwidth and 4× faster slew rate for dynamic signal fidelity; versus TLV2462IDGKR, it trades 0.15 mA per amplifier for proven robustness in consumer-grade portable designs.
Availability
LMV822DGKRG4 is available at Aetrix Electronics and suitable for portable medical sensors, industrial process monitoring, and battery-powered instrumentation requiring stable component supply across extended production lifecycles.
Supply support for LMV822DGKRG4 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 for industrial, automotive, and personal electronics markets.
The LMV8xx family was designed specifically for low-voltage, low-power commodity op-amp applications - prioritizing rail-to-rail output, cost-effective packaging (DGK, SOIC, SC70), and robust performance across –40°C to 85°C ambient ranges.
FAQ
What is the operating temperature range for LMV822DGKRG4?
The LMV822DGKRG4 is characterized for operation from –40°C to +85°C. This commercial-grade temperature range is specified in the official TI datasheet (SLOS434I, Rev. July 2006) and applies to all electrical parameters including input offset voltage, gain bandwidth, and output swing. It is not rated for extended industrial (–40°C to 125°C) operation - that specification applies only to LMV822I variants (e.g., LMV822IDGKRG4).
Does LMV822DGKRG4 support true rail-to-rail input?
No, LMV822DGKRG4 does not support rail-to-rail input. Its input common-mode voltage range extends to ground (–0.2 V minimum) but only up to VCC–0.3 V (e.g., 4.7 V at 5 V supply). The device features rail-to-rail *output* swing only. For full rail-to-rail input/output, consider TI's TLV2462 or OPA333 families - LMV822DGKRG4 is optimized for cost-sensitive applications where ground-sensing capability suffices.
What is the maximum capacitive load LMV822DGKRG4 can drive stably?
LMV822DGKRG4 maintains stability with capacitive loads up to 22 pF when configured for unity-gain (AV = +1) and operating at 2.7 V or 5 V supply, as verified in the TI datasheet Figure 16–21. For loads exceeding 22 pF (e.g., long traces or ADC input capacitance), a series resistor (10–50 Ω) between the op-amp output and the load is recommended to isolate the capacitance and preserve phase margin.
Is LMV822DGKRG4 pin-compatible with LMV358 in the DGK package?
Yes, LMV822DGKRG4 and LMV358DGKR share identical 8-pin MSOP (DGK) pinouts: Pin 1 (OUT1), Pin 2 (IN−1), Pin 3 (IN+1), Pin 4 (GND), Pin 5 (VCC+), Pin 6 (IN+2), Pin 7 (IN−2), Pin 8 (OUT2). However, performance differences - notably 5.5 MHz vs. 1 MHz GBW and 1.9 V/μs vs. 0.45 V/μs slew rate - require validation in the target circuit before drop-in replacement.
What does the "G4" suffix indicate in LMV822DGKRG4?
The "G4" suffix in LMV822DGKRG4 denotes TI's green packaging standard: lead-free (Pb-free), RoHS-compliant construction with NiPdAu lead finish and halogen-free molding compound. It does not imply enhanced performance, temperature grade, or reliability - it is strictly an environmental compliance designation aligned with JEDEC J-STD-609A.
LMV822DGKRG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LMV®
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- 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-VSSOP
LMV822DGKRG4 FAQ
1.How can I place an order for LMV822DGKRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV822DGKRG4 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 LMV822DGKRG4 reliable?
The price and inventory of LMV822DGKRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV822DGKRG4 is usually 5 days.
3.What payment methods are accepted for LMV822DGKRG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV822DGKRG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV822DGKRG4?
LMV822DGKRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV822DGKRG4 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 LMV822DGKRG4?
For technical support, including LMV822DGKRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV822DGKRG4 requirements.
6.How does Aetrix verify that LMV822DGKRG4 is sourced from the original manufacturer or authorized distributors?
All LMV822DGKRG4 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 LMV822DGKRG4 meets industry standards.
7.What is the process for return or replacement of LMV822DGKRG4?
All LMV822DGKRG4 units undergo pre-shipment inspection (PSI). If there is an issue with LMV822DGKRG4, 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 LMV822DGKRG4 part is unused and in its original packaging.
Return procedure for LMV822DGKRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LMV822DGKRG4 Tags
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