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Texas Instruments LMV822IDGKR
- Part No.:
- LMV822IDGKR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
LMV822IDGKR.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,882
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Product details
Overview
LMV822IDGKR 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, operating across –40°C to 125°C. It is used in portable sensor signal conditioning, battery-powered medical monitors, and industrial analog front-ends where space and power efficiency are critical.
For engineers reviewing the LMV822IDGKR datasheet, LMV822IDGKR pinout, LMV822IDGKR application, or LMV822IDGKR equivalent, key selection considerations include its MSOP-8 package footprint, rail-to-rail output swing down to 100 mV from rails (at 2 kΩ load), input offset voltage ≤5.5 mV over temperature, and guaranteed operation up to 125°C for automotive and harsh-environment designs.
Technical Context
The LMV822IDGKR implements a complementary input stage enabling rail-to-rail output swing while maintaining low crossover distortion. Its internal architecture supports stable unity-gain operation with ≥64.2° phase margin at 5 V and 600 Ω load, and it achieves >135 dB amplifier-to-amplifier isolation-critical for dual-channel signal paths sharing common supply and ground.
It operates from single-supply voltages as low as 2.5 V with an input common-mode range extending 0.3 V below ground and up to 4.3 V at 5 V supply, enabling direct interfacing with precision ADC reference buffers and current-sense amplifiers without level-shifting circuitry.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.5 V to 5.5 V - supports direct integration into Li-ion (3.7 V nominal) and USB-powered systems without LDO regulation. |
| Gain Bandwidth Product | 5.5 MHz typ at 5 V - enables stable closed-loop gain of 10 at 500 kHz for anti-aliasing filter stages. |
| Slew Rate | 1.9 V/μs typ at 5 V - supports 10-bit DAC output buffering at ≥100 kSPS without slewing-induced distortion. |
| Input Offset Voltage | ≤5.5 mV max over –40°C to 125°C - ensures <0.1% error in 12-bit sensor signal chains with 3.3 V full-scale range. |
| Output Swing | 0.1 V to 4.9 V at 2 kΩ load (5 V supply) - delivers true rail-to-rail dynamic range for driving SAR ADC inputs directly. |
| Supply Current | 0.5 mA typ per amplifier at 5 V - allows dual-channel operation in sub-1 mA total analog front-end power budgets. |
| Operating Temperature | –40°C to 125°C - qualified for under-hood automotive and industrial control module deployment. |
Pinout & Package
LMV822IDGKR is housed in an 8-pin MSOP (VSSOP) package (DGK), 3.0 mm × 3.0 mm × 1.0 mm body, 0.65 mm pitch, with exposed thermal pad for enhanced thermal dissipation in high-density layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT1 | Amplifier 1 output - drives loads up to 26 mA sinking / 16 mA sourcing at 5 V; rail-to-rail swing enables full utilization of 3.3 V ADC reference. |
| 2 | IN−1 | Inverting input of Amp 1 - high-impedance node (IIB ≤150 nA) suitable for precision resistor-divider feedback networks. |
| 3 | IN+1 | Non-inverting input of Amp 1 - accepts signals from –0.3 V to 4.3 V at 5 V supply, enabling ground-referenced sensor interfaces. |
| 4 | GND / VCC− | Power ground / negative supply terminal - shared reference for both amplifiers; requires low-impedance local decoupling. |
| 5 | VCC+ | Positive supply input - accepts 2.5–5.5 V; PSRR >70 dB ensures immunity to digital supply noise coupling. |
| 6 | IN+2 | Non-inverting input of Amp 2 - electrically isolated from Amp 1 with >135 dB crosstalk rejection at 1 kHz. |
| 7 | IN−2 | Inverting input of Amp 2 - matched bias current to Pin 2 enables low-offset differential configurations. |
| 8 | OUT2 | Amplifier 2 output - independent output stage; supports simultaneous dual-channel signal processing without interaction. |
Key Features
| Feature | Design Value |
|---|---|
| No Crossover Distortion | Eliminates dead-zone nonlinearity in Class-AB output stage, preserving THD <0.01% at 1 kHz for audio and precision measurement paths. |
| Rail-to-Rail Output | Swings within 100 mV of VCC+ and GND at 2 kΩ load, maximizing dynamic range when driving 12-bit ADCs with 3.3 V reference. |
| Low Input Bias Current | ≤150 nA over temperature - minimizes voltage error in high-Z sensor interfaces (e.g., pH electrodes, thermistors). |
| High CMRR | ≥70 dB over –40°C to 125°C - rejects common-mode noise in motor current sensing and industrial 4–20 mA loop receivers. |
| Stable Unity-Gain Operation | Phase margin ≥64.2° with 600 Ω load - eliminates need for external compensation in buffer and gain-of-1 configurations. |
Applications
| Portable ECG Monitor Front-End | Automotive Cabin Temperature Sensor Interface |
|---|---|
Use Scenario: Amplifying microvolt-level biopotential signals from dry electrodes in battery-powered wearable ECG devices. IC Role / Device Role / Timing Role: Dual op-amp configured as instrumentation amplifier first stage (Amp 1 & 2) and reference buffer (Amp 2), providing gain, common-mode rejection, and rail-to-rail drive capability. Use Value: 0.5 mA total quiescent current extends battery life beyond 7 days on a 200 mAh coin cell; rail-to-rail output ensures full ADC code utilization without clipping. | Use Scenario: Conditioning resistance output from NTC thermistors in HVAC control modules mounted near vehicle engines. IC Role / Device Role / Timing Role: Precision voltage follower and level-shifter for thermistor divider outputs, operating across –40°C to 125°C ambient. Use Value: Guaranteed 125°C operation avoids thermal derating; ≤5.5 mV VIO ensures ±0.5°C accuracy over full temperature range without calibration. |
| Industrial 4–20 mA Loop Receiver | USB-Powered Data Acquisition Channel |
Use Scenario: Converting loop current to ground-referenced voltage in programmable logic controller (PLC) analog input modules. IC Role / Device Role / Timing Role: Dual op-amp implementing I-to-V conversion (Amp 1) and output buffer (Amp 2) with active filtering. Use Value: Input common-mode range including ground allows direct connection to shunt resistor; >135 dB channel isolation prevents crosstalk between adjacent 4–20 mA channels. | Use Scenario: Signal conditioning for 12-bit external ADC in compact USB-powered test equipment. IC Role / Device Role / Timing Role: Dual-channel gain stage and reference buffer, powered directly from 5 V USB bus with no additional regulators. Use Value: 5.5 MHz GBW supports anti-aliasing filter design up to 200 kHz; 0.1 V output headroom enables full-scale 3.3 V ADC input swing. |
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 |
|---|---|---|---|
| TLV9002IDGKR | Lower VIO (0.75 mV typ), higher GBW (1 MHz), but only rated to 125°C with reduced output drive (40 mA sink) and no guaranteed 2.5 V operation. | Preferred for ultra-low-offset sensor front-ends where 125°C operation is secondary to precision; not suitable for 2.5 V battery systems. | Select TLV9002IDGKR if offset-critical DC accuracy outweighs minimum supply voltage and output current requirements. |
| LMV358IDR | Higher supply current (150 μA per amp), lower GBW (1 MHz), wider VIO range (7 mV max), and only rated to 85°C - lacks 125°C qualification and rail-to-rail output. | Suitable for cost-sensitive consumer electronics with benign thermal environments; unsuitable for automotive or industrial use cases requiring extended temperature range. | Choose LMV358IDR only for non-automotive, non-industrial designs where 125°C operation and rail-to-rail output are unnecessary. |
Compared with TLV9002IDGKR and LMV358IDR, LMV822IDGKR uniquely balances 125°C operation, rail-to-rail output, 5.5 MHz bandwidth, and 2.5 V minimum supply - making it the only option among the three qualified for automotive cabin sensors and industrial field transmitters.
Availability
LMV822IDGKR is available at Aetrix Electronics and suitable for portable medical devices, automotive cabin sensors, and industrial 4–20 mA loop receivers requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LMV822IDGKR 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 and embedded processing solutions, with decades of expertise in precision op-amps and low-power signal chain components.
The LMV8xx family was designed specifically for space-constrained, battery-operated, and high-temperature industrial applications demanding rail-to-rail output performance without sacrificing bandwidth or supply voltage flexibility.
FAQ
What is the maximum operating temperature for LMV822IDGKR?
The LMV822IDGKR is characterized for operation from –40°C to 125°C, making it suitable for under-hood automotive applications and industrial control modules exposed to elevated ambient temperatures. This extended temperature rating is confirmed in the "Recommended Operating Conditions" table of the official TI datasheet SLOS434I, and distinguishes it from the standard LMV822 variants rated only to 85°C.
Does LMV822IDGKR support true rail-to-rail output swing?
Yes, LMV822IDGKR provides rail-to-rail output swing: at 5 V supply and 2 kΩ load, it swings from 0.1 V above GND to 4.9 V below VCC+, delivering >98% of full supply range. This capability is verified in the "5-V Electrical Characteristics" table (VO parameter) and enables direct interfacing with 3.3 V ADCs without level-shifting circuitry.
What package type does LMV822IDGKR use, and what are its key mechanical features?
LMV822IDGKR uses the DGK package - an 8-pin MSOP (VSSOP) variant measuring 3.0 mm × 3.0 mm × 1.0 mm with 0.65 mm lead pitch and an exposed thermal pad. Its compact size saves PCB area versus SOIC-8, and the thermal pad improves power dissipation in high-density layouts - critical for sustained operation at 125°C ambient.
Can LMV822IDGKR operate from a 2.5 V supply?
Yes, LMV822IDGKR is fully specified for operation from 2.5 V to 5.5 V single supply. At 2.5 V, it maintains 3.5 MHz gain bandwidth, 1.7 V/μs slew rate, and rail-to-rail output swing (0.08 V to 2.46 V at 2 kΩ), enabling use in ultra-low-power systems such as coin-cell–powered IoT sensors and wearables.
Is LMV822IDGKR pin-compatible with other dual op-amps in MSOP-8 packages?
LMV822IDGKR follows the industry-standard MSOP-8 pinout for dual op-amps (OUT1, IN−1, IN+1, GND, VCC+, IN+2, IN−2, OUT2), matching TI's own TLV9002IDGKR and many competitors' dual op-amps. However, functional equivalence - especially regarding bandwidth, output drive, and temperature range - must be verified per application; pinout compatibility alone does not guarantee drop-in replacement.
LMV822IDGKR 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 ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-VSSOP
LMV822IDGKR FAQ
1.How can I place an order for LMV822IDGKR through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV822IDGKR 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 LMV822IDGKR reliable?
The price and inventory of LMV822IDGKR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV822IDGKR is usually 5 days.
3.What payment methods are accepted for LMV822IDGKR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV822IDGKR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV822IDGKR?
LMV822IDGKR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV822IDGKR 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 LMV822IDGKR?
For technical support, including LMV822IDGKR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV822IDGKR requirements.
6.How does Aetrix verify that LMV822IDGKR is sourced from the original manufacturer or authorized distributors?
All LMV822IDGKR 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 LMV822IDGKR meets industry standards.
7.What is the process for return or replacement of LMV822IDGKR?
All LMV822IDGKR units undergo pre-shipment inspection (PSI). If there is an issue with LMV822IDGKR, 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 LMV822IDGKR part is unused and in its original packaging.
Return procedure for LMV822IDGKR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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