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Texas Instruments TLV2422AQDR
- Part No.:
- TLV2422AQDR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLV2422AQDR.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,019
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Product details
Overview
TLV2422AQDR from Texas Instruments is a dual rail-to-rail output, micropower operational amplifier optimized for automotive-grade operation (–40°C to 125°C). It delivers 50 µA per channel supply current, 950 µV max input offset voltage at 25°C, 18 nV/√Hz input voltage noise at 1 kHz, and rail-to-rail output swing with 5-V single-supply operation - enabling precision signal conditioning in battery-powered and space-constrained automotive sensor interfaces.
For engineers reviewing the TLV2422AQDR datasheet, TLV2422AQDR pinout, TLV2422AQDR application, or TLV2422AQDR equivalent, key selection criteria include its Q-temp automotive qualification, extended common-mode input range (0 V to 4.5 V min), no phase inversion behavior, 600-Ω output drive capability, and compatibility with low-voltage ADC interfacing in harsh-environment monitoring systems.
Technical Context
The TLV2422AQDR employs Advanced LinCMOS™ process technology to achieve ultra-low input bias current (1 pA typ) and high input impedance (>1 TΩ), making it suitable for high-impedance source amplification such as piezoelectric transducers. Its rail-to-rail output stage operates across full supply rails without phase inversion, even when common-mode inputs reach VDD or GND.
It is fully characterized over –40°C to 125°C and specified for 2.7 V to 10 V supply operation. The device exhibits stable unity-gain performance with 62° phase margin and supports 100-pF capacitive loads, enabling direct driving of ADC inputs and analog filters without external isolation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 10 V - supports wide-input-voltage operation in automotive and industrial power rails. |
| Input Offset Voltage (max) | 950 µV at 25°C - enables precision DC-coupled amplification without trimming in Q-temp applications. |
| Supply Current per Channel | 100–150 µA typ at 25°C - ensures micropower operation for always-on vehicle subsystems. |
| Input Bias Current | 1 pA typ - preserves signal integrity from high-impedance sensors like thermopiles or pH electrodes. |
| Output Drive Capability | ±50 mA short-circuit current; drives 600-Ω loads - sufficient for telecom line drivers and buffered DAC outputs. |
| Common-Mode Input Range | 0 V to 4.5 V (min) with 5-V supply - allows direct sensing of ground-referenced signals without level-shifting. |
| Input Voltage Noise | 18 nV/√Hz at 1 kHz - low-noise performance critical for small-signal amplification in sensor front-ends. |
Pinout & Package
TLV2422AQDR is supplied in an 8-pin SOIC (D) package with standard dual op-amp pinout and automotive-grade thermal and reliability specifications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Inverting amplifier output - rail-to-rail capable, drives ADC reference or analog filter directly. |
| 2 | IN– A | Inverting input - high-impedance node for feedback network connection or differential sensing. |
| 3 | IN+ A | Non-inverting input - accepts ground-referenced or biased sensor signals up to VDD. |
| 4 | GND / VDD– | Power return and negative supply - shared reference for dual amplifier and system ground plane. |
| 5 | VDD+ | Positive supply - accepts 2.7–10 V; decoupling required near pin for stability. |
| 6 | OUT B | Second amplifier output - independent channel for dual-sensor conditioning or signal buffering. |
| 7 | IN– B | Second inverting input - supports matched gain configuration or differential pair implementation. |
| 8 | IN+ B | Second non-inverting input - enables simultaneous dual-channel acquisition with identical CMRR. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Drives within 10 mV of both supply rails - maximizes dynamic range for 5-V ADC interfacing. |
| No phase inversion | Stable operation even when common-mode input reaches supply rails - eliminates latch-up risk in unbuffered sensor paths. |
| Q-temp automotive qualification | Qualified per AEC-Q100 Grade 1 (–40°C to 125°C) - certified for engine control, cabin sensing, and ADAS subsystems. |
| Low input voltage noise | 18 nV/√Hz at 1 kHz - preserves SNR in millivolt-level transducer signals (e.g., pressure, temperature). |
| Micropower operation | 100 µA/channel typical supply current - extends battery life in telematics and remote diagnostic modules. |
Applications
| Automotive Cabin Temperature Sensing | Industrial Current Loop Transmitter |
|---|---|
Use Scenario: Amplifying low-level output from NTC thermistors mounted in HVAC ducts under varying ambient temperatures. IC Role / Device Role / Timing Role: Precision DC-coupled instrumentation amplifier with rail-to-rail output driving 12-bit SAR ADC input. Use Value: 950 µV max VIO and 0–4.5 V common-mode range enable direct interface without level-shifting, reducing BOM count and layout area. | Use Scenario: Conditioning 4–20 mA loop sensor signals in programmable logic controller (PLC) analog input modules. IC Role / Device Role / Timing Role: Low-drift, low-bias-current buffer and I/V converter stage preceding precision DAC and isolator stages. Use Value: 1 pA input bias current prevents error accumulation across high-value feedback resistors; Q-temp rating ensures long-term stability in factory-floor environments. |
| Portable Medical Pulse Oximetry Front-End | Automotive Battery Monitoring Unit |
Use Scenario: Amplifying weak photodiode currents from red/IR LEDs in wearable pulse oximeters powered by coin-cell batteries. IC Role / Device Role / Timing Role: First-stage transimpedance amplifier with ultra-low input current noise and micropower consumption. Use Value: 18 nV/√Hz noise and 50 µA/channel supply current extend runtime while maintaining SpO₂ measurement accuracy. | Use Scenario: Monitoring cell voltage and temperature in 12-V lead-acid or LiFePO₄ battery packs for start-stop systems. IC Role / Device Role / Timing Role: High-impedance voltage follower and differential amplifier for cell balancing and state-of-charge estimation. Use Value: Rail-to-rail output and extended common-mode range allow direct connection to microcontroller ADCs without external biasing networks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual rail-to-rail output op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2422IDR | Same architecture but industrial temp range (–40°C to 85°C); 2.5 mV max VIO vs. 950 µV. | Lacks AEC-Q100 qualification; unsuitable for under-hood automotive use. | Select only for cost-sensitive non-automotive industrial designs requiring same pinout and basic functionality. |
| OPA2333AIDR | Zero-drift architecture; 2 µV max VIO, 0.02 µV/°C drift; higher supply current (17 µA/ch). | Superior DC precision but not Q-temp qualified; requires external filtering for EMI robustness in automotive. | Choose when sub-µV offset and near-zero drift outweigh micropower needs and automotive certification requirements. |
Compared with TLV2422IDR, TLV2422AQDR provides tighter offset and guaranteed automotive qualification; compared with OPA2333AIDR, it trades DC precision for lower power and broader temperature compliance - making TLV2422AQDR optimal for cost-constrained, high-reliability automotive analog signal chains where 1 µV-level drift is acceptable.
Availability
TLV2422AQDR is available at Aetrix Electronics and suitable for automotive cabin sensing, industrial current-loop interfaces, portable medical monitoring, and battery management systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TLV2422AQDR 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 and embedded processing technologies, with decades of automotive-grade product development and manufacturing excellence.
The TLV2422 family was designed specifically for low-power, rail-to-rail output signal conditioning in automotive and industrial sensor interfaces - prioritizing micropower operation, extended common-mode range, and robustness across extreme temperature profiles.
FAQ
What is the operating temperature range for TLV2422AQDR?
The TLV2422AQDR is qualified for operation from –40°C to +125°C and meets AEC-Q100 Grade 1 requirements. This makes TLV2422AQDR suitable for under-dash, engine bay, and transmission control module applications where ambient temperatures exceed standard industrial limits.
Does TLV2422AQDR support rail-to-rail input operation?
No, TLV2422AQDR features rail-to-rail *output* only. Its common-mode input voltage range extends from VDD– (GND) to VDD+ – 0.8 V, which is wider than standard CMOS op-amps but does not include the positive rail. TLV2422AQDR avoids phase inversion when inputs approach either rail - a key distinction from true rail-to-rail input devices.
What is the maximum load capacitance TLV2422AQDR can drive stably?
TLV2422AQDR maintains stability with up to 100 pF capacitive load when configured for unity gain, as verified by 62° phase margin in the datasheet. For larger loads or higher gains, external series resistance (e.g., 10–50 Ω) at the output is recommended to preserve phase margin and prevent peaking or oscillation.
Can TLV2422AQDR operate from a 3-V supply?
Yes, TLV2422AQDR is fully specified for operation from 2.7 V to 10 V. At 3 V, it delivers rail-to-rail output swing, 50 µA per channel supply current, and retains 0–2.2 V common-mode input range - making TLV2422AQDR ideal for single-cell Li-ion or two-cell alkaline battery-powered systems.
Is TLV2422AQDR pin-compatible with other dual op-amps in SOIC-8 packages?
TLV2422AQDR uses the industry-standard dual op-amp pinout (pin 1 = OUT A, pin 2 = IN– A, pin 3 = IN+ A, pin 4 = GND, pin 5 = VDD+, pin 6 = OUT B, pin 7 = IN– B, pin 8 = IN+ B), matching TLV2422x, TLV2372, and LMV358 families. However, electrical characteristics (e.g., bias current, noise, offset) differ significantly - verify design margins before substitution.
TLV2422AQDR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LinCMOS™
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- 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
TLV2422AQDR FAQ
1.How can I place an order for TLV2422AQDR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV2422AQDR 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 TLV2422AQDR reliable?
The price and inventory of TLV2422AQDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV2422AQDR is usually 5 days.
3.What payment methods are accepted for TLV2422AQDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV2422AQDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV2422AQDR?
TLV2422AQDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV2422AQDR 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 TLV2422AQDR?
For technical support, including TLV2422AQDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV2422AQDR requirements.
6.How does Aetrix verify that TLV2422AQDR is sourced from the original manufacturer or authorized distributors?
All TLV2422AQDR 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 TLV2422AQDR meets industry standards.
7.What is the process for return or replacement of TLV2422AQDR?
All TLV2422AQDR units undergo pre-shipment inspection (PSI). If there is an issue with TLV2422AQDR, 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 TLV2422AQDR part is unused and in its original packaging.
Return procedure for TLV2422AQDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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