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Texas Instruments TLV2442AQDG4
- Part No.:
- TLV2442AQDG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLV2442AQDG4.pdf
- Description:
- IC CMOS 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:7,024
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Product details
Overview
TLV2442AQDG4 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 precision signal conditioning in low-voltage sensor interfaces and ADC drivers.
For engineers reviewing the TLV2442AQDG4 datasheet, TLV2442AQDG4 pinout, TLV2442AQDG4 application, or TLV2442AQDG4 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 TLV2442AQDG4 employs Advanced LinCMOS™ process technology to achieve high input impedance (>1 TΩ differential and common-mode resistance), ultra-low input bias current (1 pA typ), and stable rail-to-rail output stage capable of sourcing/sinking ±5 mA. Its architecture avoids phase inversion when common-mode inputs reach either supply rail-a critical advantage over standard CMOS op-amps in single-supply systems.
It is fully characterized at 3-V and 5-V supplies with guaranteed performance across the full automotive temperature range. The device supports unity-gain stable operation with 65° phase margin at 1 MHz and drives capacitive loads up to 100 pF while maintaining stability into 600-Ω resistive loads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 10 V - supports wide-input-voltage operation in battery-powered and industrial 3.3 V/5 V systems |
| Input Offset Voltage (max) | 950 µV at 25°C - enables high-accuracy DC-coupled amplification without trimming |
| Gain-Bandwidth Product | 1.8 MHz typ at 5 V - sufficient for anti-aliasing filters and medium-speed sensor signal chains |
| Output Drive Capability | ±5 mA into 600 Ω - directly interfaces with telecom line drivers and SAR ADC reference buffers |
| Input Voltage Noise | 16 nV/√Hz at 1 kHz - suitable for low-noise amplification of piezoelectric and bridge sensors |
| Common-Mode Input Range | 0 V to 4.25 V (min) at 5-V supply - allows direct sensing of signals near ground or rail without level-shifting |
| Quiescent Current | 750 µA per channel typ - balances performance and power efficiency in always-on automotive modules |
Pinout & Package
TLV2442AQDG4 is packaged in an 8-pin SOIC (D package) with gull-wing leads, RoHS-compliant, rated for automotive temperature range (–40°C to 125°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting Input (Channel 1) | High-impedance node accepting feedback or signal inversion path |
| 2 | Non-Inverting Input (Channel 1) | High-Z input for reference or sensor connection; extends to both rails |
| 3 | Output (Channel 1) | Rail-to-rail output capable of swinging within 100 mV of VDD– and VDD+ under load |
| 4 | VDD– / GND | Power return for dual-supply operation or ground reference in single-supply mode |
| 5 | VDD+ | Positive supply input; accepts 2.7 V to 10 V with internal ESD protection |
| 6 | Non-Inverting Input (Channel 2) | Independent high-Z input for second signal path; same CMVR as Channel 1 |
| 7 | Inverting Input (Channel 2) | Second independent inverting node; no crosstalk with Channel 1 per datasheet |
| 8 | Output (Channel 2) | Second rail-to-rail output; identical AC/DC specs to Channel 1 |
Key Features
| Feature | Design Value |
|---|---|
| No phase inversion | Prevents catastrophic output latch-up when common-mode input reaches supply rails-eliminates need for external clamping |
| Rail-to-rail output | Maximizes dynamic range in single-supply systems; delivers full 0–5 V swing into 600 Ω at 5 V supply |
| Extended common-mode input range | 0 V to VDD–1.3 V (min) enables direct interface with low-side current-sense shunts and thermocouples |
| Low input bias current (1 pA typ) | Preserves signal integrity in high-impedance sensor circuits (e.g., pH electrodes, photodiodes) |
| Automotive qualification | AEC-Q100 qualified for Q-temp grade; includes configuration control, high-reliability screening, and extended temperature validation |
Applications
| Automotive Cabin Temperature Sensing | Industrial 4–20 mA Loop Receiver |
|---|---|
Use Scenario: Amplifying output of NTC thermistors in HVAC control modules operating from 5-V vehicle bus. IC Role / Device Role / Timing Role: Precision DC-coupled amplifier with rail-to-rail output driving 12-bit SAR ADC reference input. Use Value: 950 µV max VIO ensures <0.1% measurement error over –40°C to 125°C; no phase inversion prevents false fault triggers during cold cranking transients. | Use Scenario: Converting 4–20 mA loop current to 0.5–2.5 V signal for microcontroller analog input in PLC I/O modules. IC Role / Device Role / Timing Role: Low-power, high-Z current-to-voltage converter with stable gain accuracy across temperature. Use Value: 1 pA input bias current minimizes offset error from shunt resistor tolerance; 750 µA/channel enables multi-channel designs within thermal limits. |
| Portable Medical ECG Front-End | Battery-Powered Gas Sensor Interface |
Use Scenario: First-stage amplification of low-amplitude biopotential signals (<5 mVpp) from dry electrodes in handheld ECG devices. IC Role / Device Role / Timing Role: Ultra-low-noise, rail-to-rail instrumentation amplifier driver stage preceding programmable gain stage. Use Value: 16 nV/√Hz input voltage noise preserves SNR; rail-to-rail output ensures full utilization of 3.3 V ADC input range. | Use Scenario: Conditioning output of electrochemical gas sensors (e.g., CO, NO₂) powered by coin-cell batteries. IC Role / Device Role / Timing Role: Low-quiescent-current transimpedance amplifier converting nanoamp-level sensor current to voltage. Use Value: 750 µA per channel enables >1-year battery life; extended CMVR accommodates varying sensor baseline voltages without level shifters. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual rail-to-rail output operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2442AIDR | Same core specs but in SOIC-8 (D) package with I-temp grade (–40°C to 85°C); lacks Q-temp automotive qualification | Not qualified for under-hood automotive use; suitable for industrial control panels and commercial equipment | Select when AEC-Q100 compliance is not required and cost sensitivity outweighs extended temperature coverage |
| OPA2333AIDR | Zero-drift architecture; 0.02 µV/°C offset drift vs. 2 µV/°C for TLV2442AQDG4; higher quiescent current (17 µA/ch) | Better long-term DC stability for precision weigh scales; less suitable for low-power battery operation | Select when ultra-low drift dominates over power budget and automotive qualification is secondary |
Compared with TLV2442AIDR and OPA2333AIDR, the TLV2442AQDG4 uniquely combines AEC-Q100 qualification, rail-to-rail output drive into 600 Ω, and sub-1 mV offset in a cost-effective SOIC-8 package-making it optimal for automotive sensor signal chains where reliability, power, and interface compatibility are jointly constrained.
Availability
TLV2442AQDG4 is available at Aetrix Electronics and suitable for automotive cabin control, industrial 4–20 mA receivers, and portable medical monitoring requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TLV2442AQDG4 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, embedded processing, and connectivity solutions with deep expertise in automotive, industrial, and personal electronics.
The TLV244x family was designed specifically for low-voltage, rail-to-rail output precision amplification in space-constrained, power-sensitive applications-including automotive sensor interfaces and portable instrumentation.
FAQ
What is the maximum operating temperature range for TLV2442AQDG4?
The TLV2442AQDG4 is qualified for continuous operation from –40°C to +125°C ambient temperature, meeting AEC-Q100 Grade 2 requirements for automotive under-hood and cabin applications. This rating is validated per TI's Q-temp automotive qualification program and includes extended reliability testing beyond standard industrial temperature grades.
Does TLV2442AQDG4 support true rail-to-rail input operation?
No, the TLV2442AQDG4 features rail-to-rail *output* but not rail-to-rail *input*. Its common-mode input voltage range extends from VDD– to VDD+ – 1.3 V (min) at 5 V supply, enabling operation down to ground but not fully to the positive rail. This design eliminates phase inversion while balancing speed, noise, and input stage complexity.
Can TLV2442AQDG4 drive a 100-pF capacitive load stably?
Yes, the TLV2442AQDG4 maintains 65° phase margin and unity-gain stability with a 100-pF capacitive load and 600-Ω series resistance, as verified in the datasheet's typical characteristics (Figure 19). For purely capacitive loads without series resistance, external isolation resistance (≥100 Ω) is recommended to ensure robust stability across temperature and process variation.
What is the typical supply current per channel for TLV2442AQDG4 at 3 V?
The typical supply current per channel for TLV2442AQDG4 is 725 µA at 3 V and 25°C, rising to 1100 µA maximum across the full –40°C to 125°C temperature range. This low quiescent current enables multi-channel implementations in always-on automotive modules without exceeding thermal or battery-life constraints.
Is TLV2442AQDG4 pin-compatible with other devices in the TLV244x family?
Yes, TLV2442AQDG4 shares identical pinout and footprint with all TLV2442/TLV2442A variants in the SOIC-8 (D) package-including TLV2442CDR, TLV2442AIDR, and TLV2442QDR. This allows drop-in replacement across temperature grades and offset specifications without PCB redesign, provided system-level requirements (e.g., AEC-Q100, max VIO) are met.
TLV2442AQDG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LinCMOS™
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Bulk
- Product Status:
- Obsolete
- 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
TLV2442AQDG4 FAQ
1.How can I place an order for TLV2442AQDG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV2442AQDG4 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 TLV2442AQDG4 reliable?
The price and inventory of TLV2442AQDG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV2442AQDG4 is usually 5 days.
3.What payment methods are accepted for TLV2442AQDG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV2442AQDG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV2442AQDG4?
TLV2442AQDG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV2442AQDG4 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 TLV2442AQDG4?
For technical support, including TLV2442AQDG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV2442AQDG4 requirements.
6.How does Aetrix verify that TLV2442AQDG4 is sourced from the original manufacturer or authorized distributors?
All TLV2442AQDG4 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 TLV2442AQDG4 meets industry standards.
7.What is the process for return or replacement of TLV2442AQDG4?
All TLV2442AQDG4 units undergo pre-shipment inspection (PSI). If there is an issue with TLV2442AQDG4, 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 TLV2442AQDG4 part is unused and in its original packaging.
Return procedure for TLV2442AQDG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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