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Texas Instruments PLPV812DGKT
- Part No.:
- PLPV812DGKT
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
PLPV812DGKT.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,203
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Product details
Overview
PLPV812DGKT from Texas Instruments is a dual-channel nanopower precision operational amplifier designed for ultra-low-power sensor signal conditioning in battery-critical systems. It delivers 425 nA per channel supply current, 300 µV maximum offset voltage, 1 µV/°C offset drift, 8 kHz gain-bandwidth, and rail-to-rail output swing within 3.5 mV of rails - enabling high-accuracy amplification in CO gas detectors and IoT remote sensors.
For engineers reviewing the PLPV812DGKT datasheet, PLPV812DGKT pinout, PLPV812DGKT application, or PLPV812DGKT equivalent, key selection considerations include its VSSOP-8 package, negative-rail-sensing input stage, femtoamp-level input bias current (100 fA), wide 1.6 V to 5.5 V supply range, and EMI-hardened architecture for reliable operation in wireless sensing nodes.
Technical Context
The PLPV812DGKT integrates two independent CMOS-input op-amps with trimmed input offset and low-drift design, supporting single-supply operation down to 1.6 V. Its input common-mode range extends to the negative rail (V−), and its rail-to-rail output stage maintains >99% dynamic range at 1.8 V supply.
Internally compensated for unity-gain stability, the device features EMI protection circuitry to suppress interference from mobile radios and RFID readers. It operates across –40°C to +125°C and exhibits 77–98 dB CMRR depending on channel and condition.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Current | 425 nA per channel - enables multi-year battery life in always-on sensor nodes |
| Offset Voltage | ≤300 µV max - ensures <±0.3 mV error in 10 mV full-scale gas sensor outputs |
| Offset Drift | ±1 µV/°C - limits thermal-induced error to <0.1 mV over 85°C industrial temperature span |
| Gain-Bandwidth | 8 kHz - supports DC to low-frequency sensor signals (e.g., CO diffusion response) |
| Input Bias Current | 100 fA - preserves signal integrity with high-impedance sources (>10 GΩ) |
| Common-Mode Range | V− to (V+ − 0.9 V) - enables direct interfacing to grounded-referenced electrochemical sensors |
| Output Swing | Within 3.5 mV of rails at 1.8 V - maximizes usable ADC input range in low-voltage systems |
Pinout & Package
PLPV812DGKT is housed in an 8-pin VSSOP (DGK) package measuring 3.00 mm × 3.00 mm, optimized for space-constrained PCB layouts in portable instrumentation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OUT A | Channel A output | Drives external load or feedback network; rail-to-rail swing supports full supply utilization |
| –IN A | Channel A inverting input | Accepts feedback signal in transimpedance or inverting configurations |
| +IN A | Channel A non-inverting input | Connects to reference electrode or high-impedance sensor node |
| V− | Negative power supply | Ground reference for single-supply operation; input common-mode extends to this rail |
| +IN B | Channel B non-inverting input | Independent input for second sensor channel or reference buffer |
| –IN B | Channel B inverting input | Supports dual-sensor differential measurement or independent signal path |
| OUT B | Channel B output | Provides second isolated analog output without cross-talk |
| V+ | Positive power supply | Accepts 1.6–5.5 V; internal regulation enables stable performance across battery discharge |
Key Features
| Feature | Design Value |
|---|---|
| Nanopower operation | 425 nA/channel enables >10-year coin-cell battery life in wake-on-event sensor nodes |
| Rail-to-rail output | Swings to within 3.5 mV of V+ and V− at 1.8 V - preserves >99% ADC resolution in 12-bit systems |
| Negative-rail sensing | Input common-mode includes V− - eliminates need for level-shifting in grounded sensor interfaces |
| Femtoamp input bias | 100 fA bias current prevents loading of high-Z electrochemical cells and piezoresistive elements |
| EMI hardening | Integrated RF rejection reduces susceptibility to 0–1 GHz noise from WiFi, BLE, and cellular bands |
Applications
| CO Gas Detection | PIR Motion Sensing |
|---|---|
Use Scenario: Amplifies nanoamp-level current from three-terminal electrochemical CO sensors in battery-powered air quality monitors. IC Role / Device Role / Timing Role: Transimpedance amplifier (TIA) with potentiostat bias control; provides stable 2.5 V reference and I-to-V conversion. Use Value: 300 µV max offset ensures sub-ppm CO detection accuracy; 425 nA quiescent current extends 2xAA battery life to >5 years. | Use Scenario: Conditions weak pyroelectric sensor output in ultra-low-power occupancy detectors with motion-triggered wake-up. IC Role / Device Role / Timing Role: High-impedance DC-coupled amplifier for slow-moving thermal transients; enables sub-µA system sleep current. Use Value: 100 fA input bias avoids signal loss across >10 GΩ sensor impedance; rail-to-rail output drives comparator directly. |
| IoT Remote Sensors | Portable Medical Devices |
Use Scenario: Signal conditioning front-end for LPWAN-connected environmental sensors (temperature, humidity, VOC) powered by energy harvesting. IC Role / Device Role / Timing Role: Precision DC amplifier with EMI-hardened inputs for reliable operation near RF transceivers. Use Value: EMI protection maintains accuracy in LoRaWAN/NB-IoT gateways; 1.6 V minimum supply supports supercapacitor backup. | Use Scenario: Amplifies biopotential signals (ECG, EMG) in disposable wearable patches with coin-cell batteries. IC Role / Device Role / Timing Role: Low-noise, low-drift instrumentation amplifier input stage; rejects electrode half-cell potential drift. Use Value: ±1 µV/°C drift minimizes recalibration needs; 125°C rating supports sterilization cycle tolerance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar nanopower operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LPV821DRXT | Single-channel, SOT-23-5, 450 nA IQ, 370 µV VOS max | Lacks dual-channel integration; requires two devices for stereo/dual-sensor use | Select when board space allows discrete channel routing and single-channel functionality suffices |
| TLV8812IDGKR | Dual-channel, VSSOP-8, 350 nA IQ, 500 µV VOS max, 6 kHz GBW | Lower IQ but higher offset and reduced bandwidth; no EMI hardening | Prefer for cost-sensitive, lower-precision applications where RF immunity is not required |
Compared with LPV812DGKT, LPV821DRXT offers identical precision but lacks channel integration, increasing layout complexity and component count; TLV8812IDGKR trades offset accuracy and EMI robustness for marginal IQ reduction - making PLPV812DGKT optimal for high-reliability, low-drift, RF-noisy environments.
Availability
PLPV812DGKT is available at Aetrix Electronics and suitable for CO gas detectors, PIR motion sensors, and IoT remote sensors requiring stable component supply with guaranteed long-term manufacturability and consistent parametric performance.
Supply support for PLPV812DGKT 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 for industrial, automotive, and personal electronics markets.
The LPV8xx family, including PLPV812DGKT, was engineered specifically for "always ON" battery-powered sensing - prioritizing nanopower consumption, precision DC performance, and robustness in real-world EMI environments.
FAQ
What is the maximum operating temperature for PLPV812DGKT?
The PLPV812DGKT is rated for continuous operation from –40°C to +125°C. This extended temperature range supports deployment in harsh environments such as industrial enclosures, automotive under-hood modules, and sterilizable medical wearables - all while maintaining specified offset voltage, drift, and supply current performance.
Does PLPV812DGKT support single-supply operation below 2.0 V?
Yes, PLPV812DGKT operates reliably from 1.6 V to 5.5 V. At 1.8 V supply, it delivers full rail-to-rail output swing (within 3.5 mV of rails), 425 nA per channel quiescent current, and 300 µV max offset - making it ideal for systems powered by partially discharged lithium coin cells or thin-film batteries.
Can PLPV812DGKT drive capacitive loads directly?
No - PLPV812DGKT is unity-gain stable but sensitive to capacitive loads >50 pF. For loads exceeding this threshold, a 30–50 kΩ isolation resistor (RISO) must be placed between the output and the capacitor to maintain phase margin and prevent peaking or oscillation, as documented in TI's SNOSD33B datasheet Figure 45.
What is the input common-mode voltage range of PLPV812DGKT?
The input common-mode voltage range of PLPV812DGKT extends from V− to (V+ − 0.9 V). This negative-rail-sensing capability allows direct connection to grounded-referenced sensors (e.g., electrochemical gas cells) without level-shifting circuitry - simplifying design and reducing component count in single-supply systems.
Is PLPV812DGKT pin-compatible with other VSSOP-8 op-amps?
PLPV812DGKT uses a non-standard pinout optimized for dual-channel independence: pins 1–4 serve Channel A and V−, while pins 5–8 serve Channel B and V+. It is not pin-compatible with generic dual op-amps like LMV358 or TLV2372 - PCB layout must follow the DGK package mapping in SNOSD33B Section 5.
PLPV812DGKT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- 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:
- 0.0021V/µs
- Gain Bandwidth Product:
- 8 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 0.1 pA
- Voltage - Input Offset:
- 55 µV
- Current - Supply:
- 425nA (x2 Channels)
- Current - Output / Channel:
- 4.7 mA
- Voltage - Supply Span (Min):
- 1.6 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
PLPV812DGKT FAQ
1.How can I place an order for PLPV812DGKT through Aetrix?
Please submit a Request for Quotation (RFQ) for PLPV812DGKT 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 PLPV812DGKT reliable?
The price and inventory of PLPV812DGKT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PLPV812DGKT is usually 5 days.
3.What payment methods are accepted for PLPV812DGKT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PLPV812DGKT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PLPV812DGKT?
PLPV812DGKT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PLPV812DGKT 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 PLPV812DGKT?
For technical support, including PLPV812DGKT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PLPV812DGKT requirements.
6.How does Aetrix verify that PLPV812DGKT is sourced from the original manufacturer or authorized distributors?
All PLPV812DGKT 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 PLPV812DGKT meets industry standards.
7.What is the process for return or replacement of PLPV812DGKT?
All PLPV812DGKT units undergo pre-shipment inspection (PSI). If there is an issue with PLPV812DGKT, 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 PLPV812DGKT part is unused and in its original packaging.
Return procedure for PLPV812DGKT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PLPV812DGKT Tags
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