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Texas Instruments TLV2442AQD
- Part No.:
- TLV2442AQD
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLV2442AQD.pdf
- Description:
- IC CMOS 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,339
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Product details
Overview
TLV2442AQD from Texas Instruments is a dual, rail-to-rail output operational amplifier optimized for automotive-grade operation across –40°C to 125°C. It delivers 1.8 MHz gain-bandwidth, 750 µA per channel supply current, 950 µV max input offset voltage at 25°C, and rail-to-rail output swing into 600-Ω loads-enabling high-accuracy signal conditioning in low-voltage sensor interfaces and ADC drivers.
For engineers reviewing the TLV2442AQD datasheet, TLV2442AQD pinout, TLV2442AQD application, or TLV2442AQD equivalent, key selection criteria include its extended common-mode input range (0 V to 4.25 V min at 5-V supply), no phase inversion behavior, 16 nV/√Hz input voltage noise at 1 kHz, and Q-temp automotive qualification per AEC-Q100.
Technical Context
The TLV2442AQD uses Advanced LinCMOS™ process technology to achieve rail-to-rail output swing while maintaining wide common-mode input voltage range (0 V to VDD–1.3 V) and eliminating phase inversion near supply rails. Its input stage features ultra-low input bias current (1 pA typ) and high input impedance (>1 TΩ), making it suitable for high-impedance source interfacing.
Internally compensated for unity-gain stability with 68° phase margin at 5 V and 600-Ω load, the device supports stable operation with capacitive loads up to 100 pF and delivers 0.75 V/µs slew rate at 5 V. It is fully characterized at 3-V and 5-V supplies and specified over full automotive temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 10 V - Supports single-supply operation down to 2.7 V, compatible with Li-ion battery and 3.3-V/5-V systems. |
| Input Offset Voltage (max) | 950 µV at 25°C - Enables precision DC-coupled amplification without trimming in automotive sensor front-ends. |
| Gain-Bandwidth Product | 1.8 MHz typ at 5 V - Sufficient for anti-aliasing filters, active RC stages, and medium-speed signal conditioning. |
| Output Drive Capability | 600-Ω load drive - Directly interfaces with telecom line drivers and legacy analog inputs requiring robust output current. |
| Input Bias Current | 1 pA typ - Minimizes voltage error in high-impedance networks (e.g., piezoelectric transducers, pH electrodes). |
| Common-Mode Input Range | 0 V to 4.25 V (min) at 5-V supply - Allows direct sensing of signals referenced to ground or near-rail voltages without level-shifting. |
| Operating Temperature | –40°C to +125°C - Qualified for under-hood and powertrain applications per AEC-Q100 Grade 1 requirements. |
Pinout & Package
TLV2442AQD is housed in an 8-pin SOIC (D) package with standard dual op-amp pinout and exposed pad not present. Pin functions are electrically validated per TI SLOS169H datasheet Figure 1 (D-package top view).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting input (Channel 1) | High-impedance differential input node; accepts signals within 0 V to VDD–1.3 V common-mode range. |
| 2 | Non-inverting input (Channel 1) | Same CMVR as Pin 1; enables unity-gain buffer or differential configurations without phase reversal. |
| 3 | Output (Channel 1) | Rail-to-rail output capable of sourcing/sinking ±5 mA; swings within 50 mV of rails into 600 Ω. |
| 4 | VDD– / GND | Ground reference for dual-supply operation or negative rail in single-supply configuration. |
| 5 | Non-inverting input (Channel 2) | Independent second amplifier input; identical electrical specs and CMVR to Channel 1. |
| 6 | Inverting input (Channel 2) | Matches Pin 1 function; supports dual-channel signal processing with matched AC/DC performance. |
| 7 | Output (Channel 2) | Full rail-to-rail swing; electrically isolated from Channel 1 output except via shared supply pins. |
| 8 | VDD+ | Positive supply rail; accepts 2.7 V to 10 V; decoupling capacitor required for stability at high frequencies. |
Key Features
| Feature | Design Value |
|---|---|
| No phase inversion | Prevents catastrophic output latch-up when common-mode input approaches supply rails-critical for unbuffered sensor outputs. |
| Rail-to-rail output | Maximizes dynamic range in single-supply systems (e.g., 0–5 V ADC interface), increasing effective resolution by ≥1 LSB. |
| Low input offset drift | 2 µV/°C tempco ensures <1.5 mV total offset shift over full automotive temperature range, reducing calibration burden. |
| Low-noise design | 16 nV/√Hz at 1 kHz enables clean amplification of µV-level signals from strain gauges or thermopiles. |
| Automotive qualification | AEC-Q100 qualified with configuration control and extended temperature screening-meets OEM requirements for production ECUs. |
Applications
| Engine Coolant Temperature Sensing | Automotive Cabin Air Quality Monitor |
|---|---|
Use Scenario: Amplifies low-level resistance changes from NTC thermistors in engine coolant loop, operating from 5-V microcontroller supply. 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 0–4.25 V CMVR enable direct connection without level-shifting, reducing BOM count and thermal drift errors. | Use Scenario: Condition signals from electrochemical CO₂ and VOC sensors in HVAC control module, powered from vehicle 12-V system via LDO. IC Role / Device Role / Timing Role: Low-bias-current transimpedance amplifier converting nanoamp sensor currents to voltage for MCU ADC sampling. Use Value: 1 pA typical IIB minimizes input error on high-impedance sensor nodes, preserving measurement accuracy below 50 ppm CO₂. |
| Electric Power Steering (EPS) Torque Sensor Interface | Onboard Charger Voltage Feedback Loop |
Use Scenario: Interfaces Wheatstone bridge torque sensor in EPS motor control unit, operating continuously at 125°C ambient. IC Role / Device Role / Timing Role: Dual-channel difference amplifier rejecting common-mode noise while delivering rail-to-rail output to safety MCU. Use Value: –40°C to 125°C guaranteed operation and no phase inversion ensure functional safety compliance (ISO 26262 ASIL-B) without derating. | Use Scenario: Provides isolated voltage feedback to PWM controller in 6.6-kW EV onboard charger, monitoring 400-V DC bus via resistive divider. IC Role / Device Role / Timing Role: High-precision error amplifier in closed-loop regulation circuit, comparing scaled bus voltage to reference. Use Value: 80 dB min PSRR and 70 dB min CMRR suppress ripple and common-mode noise from switching converters, improving voltage regulation stability. |
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 |
|---|---|---|---|
| TLV2432AQD | Lower supply current (550 µA/ch), reduced GBW (1.4 MHz), same VIO spec and temperature range. | Better suited for ultra-low-power battery-backed modules where bandwidth ≤1.4 MHz suffices. | Select TLV2432AQD only if 300 µA lower quiescent current justifies 0.4 MHz bandwidth reduction. |
| OPA2333AQDGKR | Zero-drift architecture, 12 µV max VIO, higher cost, same 1.8 MHz GBW and –40°C to 125°C rating. | Required for µV-level DC accuracy in precision current sensing or medical diagnostics subsystems. | Choose OPA2333AQDGKR only when sub-20 µV offset and near-zero drift outweigh cost and complexity trade-offs. |
Compared with TLV2442AQD, TLV2432AQD trades bandwidth for lower power, while OPA2333AQDGKR replaces LinCMOS™ input stage with auto-zeroing to achieve 47× lower offset-making TLV2442AQD the optimal balance of precision, speed, and cost for mainstream automotive signal conditioning.
Availability
TLV2442AQD is available at Aetrix Electronics and suitable for engine control units, battery management systems, and ADAS sensor interfaces requiring stable component supply across automotive production lifecycles.
Supply support for TLV2442AQD 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 IC development experience.
The TLV244x family was designed specifically for low-voltage, rail-to-rail output signal conditioning in automotive and industrial environments-emphasizing wide input voltage range, phase-inversion immunity, and extended temperature reliability.
FAQ
What is the maximum operating temperature for TLV2442AQD?
The TLV2442AQD is rated for continuous operation from –40°C to +125°C ambient temperature, meeting AEC-Q100 Grade 1 requirements for automotive under-hood applications. This specification is verified per TI's SLOS169H datasheet Section "Recommended Operating Conditions" and applies across the full supply range (2.7 V to 10 V). The device maintains all key parameters-including input offset voltage, CMRR, and output swing-within datasheet limits at 125°C.
Does TLV2442AQD support true rail-to-rail input?
No, TLV2442AQD provides rail-to-rail *output* swing but has a wide-but not rail-to-rail-common-mode input voltage range. At 5-V supply, its specified common-mode input range is 0 V to 4.25 V (minimum), meaning it accepts inputs down to ground but not quite to VDD. This is sufficient for most single-supply sensor interfaces and avoids the complexity and noise penalties of full rail-to-rail input architectures.
Can TLV2442AQD drive a 100-pF capacitive load stably?
Yes, TLV2442AQD is internally compensated for unity-gain stability with capacitive loads up to 100 pF, as confirmed by phase margin measurements (68° at 5 V, 600-Ω load, 100-pF CL) in the SLOS169H datasheet. For loads >100 pF, external isolation resistor (≥10 Ω) between output and capacitance is recommended to maintain stability without degrading step response.
What is the typical input bias current of TLV2442AQD?
The typical input bias current of TLV2442AQD is 1 pA at 25°C, with a maximum of 260 pA over the full –40°C to 125°C temperature range. This ultra-low value results from its Advanced LinCMOS™ input stage and enables accurate amplification of signals from high-impedance sources such as piezoelectric sensors, pH electrodes, and photodiode transimpedance circuits without significant input error voltage.
Is TLV2442AQD pin-compatible with other devices in the TLV244x family?
Yes, TLV2442AQD shares identical 8-pin SOIC (D) package pinout and electrical functionality with TLV2442CD, TLV2442ID, TLV2442AID, and TLV2442QD-differing only in temperature grade, input offset voltage specification, and qualification level. This allows drop-in replacement during design-in or requalification, provided the target application's temperature and precision requirements align with the selected variant.
TLV2442AQD Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LinCMOS™
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Bulk
- Product Status:
- Active
- Amplifier Type:
- CMOS
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 1.4V/µs
- Gain Bandwidth Product:
- 1.81 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 1 pA
- Voltage - Input Offset:
- 300 µV
- Current - Supply:
- 750µA (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
TLV2442AQD FAQ
1.How can I place an order for TLV2442AQD through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV2442AQD 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 TLV2442AQD reliable?
The price and inventory of TLV2442AQD are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV2442AQD is usually 5 days.
3.What payment methods are accepted for TLV2442AQD?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV2442AQD transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV2442AQD?
TLV2442AQD orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV2442AQD 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 TLV2442AQD?
For technical support, including TLV2442AQD datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV2442AQD requirements.
6.How does Aetrix verify that TLV2442AQD is sourced from the original manufacturer or authorized distributors?
All TLV2442AQD 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 TLV2442AQD meets industry standards.
7.What is the process for return or replacement of TLV2442AQD?
All TLV2442AQD units undergo pre-shipment inspection (PSI). If there is an issue with TLV2442AQD, 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 TLV2442AQD part is unused and in its original packaging.
Return procedure for TLV2442AQD:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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