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Texas Instruments TLV2422QD
- Part No.:
- TLV2422QD
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLV2422QD.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,664
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Product details
Overview
TLV2422QD from Texas Instruments is a dual rail-to-rail output, micropower operational amplifier optimized for automotive-grade operation across –40°C to 125°C. It delivers 50 µA per channel supply current, 18 nV/√Hz input voltage noise at 1 kHz (VDD = 5 V), and rail-to-rail output swing with 600-Ω load drive capability-enabling precision signal conditioning in battery-powered automotive sensor interfaces.
For engineers reviewing the TLV2422QD datasheet, TLV2422QD pinout, TLV2422QD application, or TLV2422QD equivalent, key selection criteria include its Q-temp automotive qualification, extended common-mode input range (0 V to 4.5 V min at 5-V supply), absence of phase inversion, and low 950 µV max input offset voltage (TLV2422AQ variant) - all critical for robust analog front-end design in harsh environments.
Technical Context
The TLV2422QD employs Advanced LinCMOS™ process technology to achieve high input impedance (>10¹² Ω), ultra-low input bias current (1 pA typ), and rail-to-rail output stage capable of sourcing/sinking ±50 mA. Its input stage supports common-mode voltages extending to both supply rails without phase reversal-a key differentiator versus standard CMOS op-amps.
It operates from 2.7 V to 10 V single or split supplies, is fully characterized at 3 V and 5 V, and features 46–52 kHz gain-bandwidth product (depending on supply), 0.008 V/µs slew rate, and 70–90 dB CMRR-making it suitable for low-speed, high-precision, low-power sensing and ADC interfacing where supply headroom is constrained.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 10 V - enables direct operation from Li-ion, 3.3 V, or 5 V rails without regulation |
| Supply Current per Channel | 100–150 µA (typ/max at 25°C) - supports multi-year battery life in always-on monitoring systems |
| Input Offset Voltage (max) | 2000 µV (TLV2422Q), 950 µV (TLV2422AQ) - determines DC accuracy in sensor amplification chains |
| Input Bias Current (typ) | 1 pA - preserves signal integrity when amplifying high-impedance sources (e.g., piezoelectric transducers) |
| Output Drive Capability | ±50 mA short-circuit current; drives 600-Ω loads - sufficient for telecom line drivers and DAC buffers |
| Common-Mode Input Range | 0 V to VDD–0.8 V - allows direct interface with ground-referenced sensors and single-supply ADCs |
| Output Swing | Rail-to-rail - maximizes dynamic range and minimizes headroom loss in low-voltage systems |
Pinout & Package
TLV2422QD is housed in an 8-pin SOIC (D) package with standard dual-op-amp pinout and GND/VDD– shared on pin 4.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT1 | Amplifier 1 output - rail-to-rail capable, drives external loads up to 600 Ω |
| 2 | IN1– | Inverting input of Amp1 - high-impedance node (10¹² Ω), sensitive to PCB leakage |
| 3 | IN1+ | Non-inverting input of Amp1 - accepts signals from 0 V to VDD–0.8 V |
| 4 | VDD– / GND | Power return and reference - shared ground for both amplifiers and system |
| 5 | IN2+ | Non-inverting input of Amp2 - independent, identical specs to IN1+ |
| 6 | IN2– | Inverting input of Amp2 - matched performance to IN1–, supports differential configurations |
| 7 | OUT2 | Amplifier 2 output - fully independent, same rail-to-rail behavior as OUT1 |
| 8 | VDD+ | Positive supply - accepts 2.7–10 V; decoupling capacitor required near pin |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output | Enables full utilization of ADC input range and maximizes SNR in low-voltage data acquisition |
| No phase inversion | Eliminates output glitches when common-mode inputs approach supply rails - critical for sensor overvoltage resilience |
| Extended common-mode input range | 0 V to 4.5 V (min) at 5-V supply - supports direct connection to unbuffered resistive sensors and thermistors |
| Q-temp automotive qualification | Rated for –40°C to +125°C operation and qualified to AEC-Q100 - suitable for engine control, cabin sensing, and ADAS subsystems |
| 18 nV/√Hz input voltage noise | Preserves signal fidelity in low-level sensor amplification (e.g., strain gauges, RTDs) without requiring additional filtering |
Applications
| Automotive Cabin Temperature Sensing | Industrial Battery Monitoring |
|---|---|
Use Scenario: Amplifying output of NTC thermistors mounted in HVAC ducts or seat climate modules. IC Role / Device Role / Timing Role: Precision DC-coupled non-inverting amplifier with rail-to-rail output driving 12-bit SAR ADC. Use Value: 950 µV max VIO (TLV2422AQ) ensures <±0.5°C measurement error over –40°C to 85°C ambient; micropower operation extends module battery life. | Use Scenario: Monitoring cell voltage and temperature in 12-V lead-acid or LiFePO₄ backup systems. IC Role / Device Role / Timing Role: Dual-channel buffer and level-shifter for isolated voltage/temperature sense lines feeding MCU ADC. Use Value: Rail-to-rail output ensures full 0–5 V ADC range usage; 1 pA input bias prevents loading of high-resistance voltage divider networks. |
| Portable Medical Pulse Oximetry | Smart Building Occupancy Sensors |
Use Scenario: Conditioning weak photodiode current signals in wearable SpO₂ monitors powered by coin cells. IC Role / Device Role / Timing Role: Transimpedance amplifier (TIA) front-end with low-noise, low-input-bias configuration. Use Value: 18 nV/√Hz noise and 1 pA bias minimize signal degradation; 50 µA/channel current enables >5-year battery life at 1 Hz sampling. | Use Scenario: Signal conditioning for passive infrared (PIR) motion detectors in energy-efficient lighting controls. IC Role / Device Role / Timing Role: Dual-stage amplifier: first stage for PIR output gain, second for active low-pass filtering before comparator. Use Value: No phase inversion prevents false triggers during voltage rail transients; Q-temp rating ensures reliability in attic/wall cavity deployments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual micropower rail-to-rail output op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2422AQD | Same package and pinout; lower 950 µV max VIO vs. TLV2422QD's 2000 µV | Better DC accuracy for precision sensor front-ends; identical AC specs and temp range | Select TLV2422AQD when offset-limited error budgets require tighter initial VIO spec |
| MCP6022-E/SN | Higher 100 µA/channel supply current; 15 nV/√Hz noise; rated only to 85°C industrial grade | Lacks automotive qualification and extended temp range; higher power limits battery lifetime | Consider MCP6022-E/SN only for cost-sensitive industrial designs where AEC-Q100 is not required |
Compared with TLV2422QD, TLV2422AQD offers superior DC accuracy without trade-offs in speed, noise, or temperature range, while MCP6022-E/SN provides marginally lower noise but sacrifices automotive qualification and increases quiescent power by 100%.
Availability
TLV2422QD is available at Aetrix Electronics and suitable for automotive cabin sensing, industrial battery monitoring, and portable medical device applications requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TLV2422QD 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, embedded processing, and connectivity technologies with decades of automotive-grade component development.
The TLV2422 family was designed specifically for low-voltage, micropower, rail-to-rail output signal conditioning in automotive and industrial sensor interfaces-prioritizing DC precision, supply flexibility, and ruggedness over raw bandwidth.
FAQ
What is the operating temperature range of the TLV2422QD?
The TLV2422QD is qualified for continuous operation from –40°C to +125°C, meeting AEC-Q100 Grade 2 requirements for automotive under-hood and cabin applications. This rating is confirmed in the "Available Options" table and "Recommended Operating Conditions" section of the SLOS199C datasheet, where the Q suffix explicitly denotes the –40°C to 125°C range.
Does the TLV2422QD support rail-to-rail input operation?
No, the TLV2422QD features rail-to-rail *output* but not rail-to-rail *input*. Its common-mode input voltage range extends from VDD– (GND) to VDD–0.8 V - for example, 0 V to 4.2 V at 5-V supply. This wide input range avoids phase inversion but does not include the positive rail, distinguishing it from true rail-to-rail input op-amps.
What is the maximum capacitive load the TLV2422QD can drive stably?
The TLV2422QD is characterized for stability with 100 pF capacitive load in unity-gain configuration (see "Operating Characteristics" tables). Driving larger capacitive loads (e.g., >200 pF) may degrade phase margin and cause peaking or oscillation unless compensated with a series resistor (typically 10–100 Ω) placed close to the output pin.
How does the TLV2422QD differ from the TLV2422AQD variant?
The TLV2422AQD is a screened version of the TLV2422QD with tighter input offset voltage specification: 950 µV max at 25°C versus 2000 µV max for TLV2422QD. All other electrical parameters-including supply current, noise, bandwidth, temperature range, and pinout-are identical between the two parts.
Can the TLV2422QD be used with a single 3.3-V supply?
Yes, the TLV2422QD is fully specified and characterized for operation from 2.7 V to 10 V, including 3.3-V single supply. At 3.3 V, it maintains rail-to-rail output swing, 100–150 µA per channel supply current, and common-mode input range from 0 V to 2.2 V (min), making it ideal for modern low-voltage embedded systems.
TLV2422QD Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LinCMOS™
- 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:
- 0.02V/µs
- Gain Bandwidth Product:
- 5.3 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 1 pA
- Voltage - Input Offset:
- 300 µV
- Current - Supply:
- 100µA (x2 Channels)
- Current - Output / Channel:
- 50 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 10 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
TLV2422QD FAQ
1.How can I place an order for TLV2422QD through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV2422QD 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 TLV2422QD reliable?
The price and inventory of TLV2422QD are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV2422QD is usually 5 days.
3.What payment methods are accepted for TLV2422QD?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV2422QD transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV2422QD?
TLV2422QD orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV2422QD 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 TLV2422QD?
For technical support, including TLV2422QD datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV2422QD requirements.
6.How does Aetrix verify that TLV2422QD is sourced from the original manufacturer or authorized distributors?
All TLV2422QD 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 TLV2422QD meets industry standards.
7.What is the process for return or replacement of TLV2422QD?
All TLV2422QD units undergo pre-shipment inspection (PSI). If there is an issue with TLV2422QD, 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 TLV2422QD part is unused and in its original packaging.
Return procedure for TLV2422QD:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLV2422QD Tags
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