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Texas Instruments TLV2442QD
- Part No.:
- TLV2442QD
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLV2442QD.pdf
- Description:
- IC CMOS 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,419
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Product details
Overview
TLV2442QD from Texas Instruments is a dual, rail-to-rail output, wide-input-voltage 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, 16 nV/√Hz input voltage noise at 1 kHz, 950 µV max input offset voltage (at 25°C), and 600-Ω output drive capability - enabling precision signal conditioning in low-voltage sensor interfaces and ADC driver stages.
For engineers reviewing the TLV2442QD datasheet, TLV2442QD pinout, TLV2442QD application, or TLV2442QD equivalent, this device is selected for automotive sensor signal amplification, battery-powered instrumentation, and rail-to-rail output interfacing where extended common-mode range (0 V to 4.25 V at 5 V supply), no phase inversion, and low-power precision are required.
Technical Context
The TLV2442QD employs Advanced LinCMOS™ process technology to achieve rail-to-rail output swing while maintaining wide common-mode input range (0 V to VDD–1 V) and eliminating phase inversion near supply rails. Its architecture supports stable unity-gain operation with 65° phase margin into 600-Ω loads and 100 pF capacitive load.
It operates from 2.7 V to 10 V single supply (or ±1.35 V to ±5 V dual supply), features 1000 GΩ differential and common-mode input resistance, and exhibits 70 dB CMRR and 95 dB PSRR at 25°C - making it suitable for high-impedance source buffering and precision DC-coupled gain stages.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 10 V single supply - enables direct use with 3.3 V and 5 V systems without level-shifting. |
| Gain-Bandwidth Product | 1.8 MHz typ - supports stable closed-loop gain up to ~18× at 100 kHz for sensor signal amplification. |
| Input Offset Voltage | ≤950 µV max at 25°C - ensures ≤0.5 mV error in 5 V full-scale 12-bit ADC interface applications. |
| Output Drive | 600-Ω load capable - drives standard telecom line drivers and SAR ADC reference buffers without external buffers. |
| Input Voltage Noise | 16 nV/√Hz typ at 1 kHz - preserves SNR in low-level piezoelectric or thermopile transducer amplification. |
| Common-Mode Input Range | 0 V to 4.25 V min at 5 V supply - accepts signals down to ground, simplifying single-supply front-end design. |
| Slew Rate | 0.75 V/µs typ at 5 V - supports 100 kHz full-swing output for 2 Vpp signals without distortion. |
Pinout & Package
TLV2442QD is housed in an 8-pin SOIC (Small Outline Integrated Circuit) package (D package), with exposed pad not present and surface-mount footprint compatible with JEDEC MS-012AC.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting Input (Channel 1) | High-impedance node accepting feedback or signal inversion path; supports >1000 GΩ input resistance. |
| 2 | Non-Inverting Input (Channel 1) | High-impedance node for reference or sensor input; common-mode range extends to both rails. |
| 3 | Output (Channel 1) | Rail-to-rail output capable of swinging within 100 mV of VDD and GND at 5 mA load. |
| 4 | GND / VDD– | Power return for single-supply operation or negative rail in split-supply configuration. |
| 5 | Non-Inverting Input (Channel 2) | Independent high-Z input for second signal path; identical specs to Channel 1. |
| 6 | Inverting Input (Channel 2) | Second independent inverting node; no crosstalk between channels confirmed in datasheet. |
| 7 | Output (Channel 2) | Second rail-to-rail output; fully characterized for simultaneous dual-channel operation. |
| 8 | VDD+ | Positive supply pin; supports 2.7–10 V operation with 750 µA/channel quiescent current. |
Key Features
| Feature | Design Value |
|---|---|
| No phase inversion | Eliminates output discontinuity when common-mode input reaches supply rails - critical for overvoltage-tolerant sensor front-ends. |
| Rail-to-rail output | Delivers full dynamic range into ADCs or DACs without headroom loss - increases effective resolution in 3.3 V systems. |
| Low input bias current | 1 pA typical - preserves accuracy in high-impedance pH, photodiode, or piezoelectric sensor interfaces. |
| Automotive qualification | Q-temp grade (–40°C to 125°C) with AEC-Q100 stress testing - qualified for engine control, cabin sensing, and ADAS subsystems. |
| Extended common-mode range | 0 V to VDD–1 V at 5 V - enables direct connection to grounded sensors or resistive divider outputs without level shifters. |
Applications
| Automotive Cabin Temperature Sensing | Portable ECG Front-End |
|---|---|
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 non-inverting amplifier with gain = 10, rejecting common-mode drift from shared ground paths. Use Value: 950 µV max VIO and 2 µV/°C tempco ensure <±0.5°C measurement error across –40°C to 85°C cabin operating range. | Use Scenario: Buffering and amplifying microvolt-level biopotential signals from dry electrodes in battery-powered wearable monitors. IC Role / Device Role / Timing Role: First-stage instrumentation amplifier input buffer with ultra-low input bias current and rail-to-rail output swing. Use Value: 1 pA input bias prevents electrode polarization; 16 nV/√Hz noise maintains >80 dB SNR for 0.5–40 Hz ECG bandwidth. |
| Industrial 4–20 mA Loop Receiver | Smart Pressure Transmitter Signal Conditioning |
Use Scenario: Converting 4–20 mA loop current to 0.5–2.5 V analog voltage for microcontroller ADC sampling in factory automation nodes. IC Role / Device Role / Timing Role: Precision I-to-V converter with 250 Ω sense resistor, followed by rail-to-rail output stage driving 12-bit SAR ADC. Use Value: 600-Ω drive capability eliminates need for output buffer; 750 µA/channel supply current enables multi-channel loop receivers on 3.3 V rails. | Use Scenario: Amplifying millivolt output from silicon piezoresistive pressure sensors in oil & gas field instruments exposed to wide temperature swings. IC Role / Device Role / Timing Role: Low-noise, low-drift gain stage preceding temperature compensation circuitry and ADC digitization. Use Value: 0.002 µV/month long-term drift ensures calibration stability over 5-year field deployment; Q-temp rating covers –40°C to 125°C operating envelope. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2442AID | Same architecture and pinout; wider industrial temp range (–40°C to 85°C) but lower VIO spec (950 µV max) only guaranteed at 25°C - not over full range. | Not qualified for automotive AEC-Q100; lacks extended high-temp validation beyond 85°C. | Select TLV2442AID only for cost-sensitive industrial designs where full –40°C to 125°C operation is not required. |
| OPA2333QDGKR | Zero-drift architecture; 0.02 µV/°C offset drift vs. TLV2442QD's 2 µV/°C; higher supply current (17 µA/ch); lower GBW (350 kHz). | Better DC precision but insufficient bandwidth for fast-settling ADC drivers; not optimized for 600-Ω load drive. | Choose OPA2333QDGKR only when sub-µV offset stability over temperature is mandatory - not for general-purpose rail-to-rail output applications. |
Compared with TLV2442AID and OPA2333QDGKR, TLV2442QD uniquely balances automotive qualification, rail-to-rail output drive into 600 Ω, 1.8 MHz bandwidth, and 950 µV max VIO across –40°C to 125°C - making it the optimal choice for cost-constrained, high-reliability sensor signal chains in harsh environments.
Availability
TLV2442QD is available at Aetrix Electronics and suitable for automotive cabin sensing, portable medical monitoring, and industrial 4–20 mA loop receiver designs requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TLV2442QD 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 for industrial, automotive, and personal electronics markets.
The TLV244x family was designed specifically for low-voltage, rail-to-rail output precision amplification in battery-powered and automotive systems - emphasizing wide input voltage range, no phase inversion, and robust operation from 2.7 V to 10 V.
FAQ
What is the operating temperature range specified for TLV2442QD?
The TLV2442QD is rated for operation from –40°C to +125°C ambient temperature, meeting automotive Q-temp requirements and qualified per AEC-Q100 standards for reliability in harsh environments. This range is explicitly defined in the "Recommended Operating Conditions" table of the SLOS169H datasheet and applies to all electrical specifications unless otherwise noted.
Does TLV2442QD support true rail-to-rail input common-mode range?
No, TLV2442QD provides rail-to-rail *output* swing but not rail-to-rail input. Its common-mode input voltage range is specified as 0 V to VDD–1 V at 5 V supply (i.e., 0 V to 4 V), extending to 0 V to 4.25 V minimum. It does not accept inputs at VDD or below GND - unlike dedicated rail-to-rail input op-amps such as the TLV9002.
Can TLV2442QD drive a 1000-pF capacitive load stably?
No - the TLV2442QD is characterized for stability with up to 100 pF capacitive load (per Figure 19/20 in SLOS169H). Driving 1000 pF directly risks oscillation due to reduced phase margin; a series resistor (e.g., 100 Ω) between output and capacitance is required for stability, or consider a unity-gain stable op-amp like the OPA333 for heavy capacitive loads.
Is TLV2442QD pin-compatible with other devices in the TLV244x family?
Yes - TLV2442QD uses the standard 8-pin SOIC (D package) pinout shared across all TLV2442 variants (e.g., TLV2442CD, TLV2442AID, TLV2442ID). Pin functions are identical: pins 1–3 and 5–7 correspond to Channel 1 and Channel 2 inputs/outputs respectively, with pin 4 as GND and pin 8 as VDD+.
What is the maximum output current capability of TLV2442QD?
The TLV2442QD can source or sink up to ±5 mA continuously while maintaining rail-to-rail output swing (see VOH/VOL specs at IO = ±5 mA in datasheet Table, page 7), with absolute maximum rating of ±50 mA. For sustained 600-Ω drive, it delivers ±3 mA with <1 V drop from rails at 5 V supply - sufficient for driving ADC reference inputs and moderate-impedance loads.
TLV2442QD 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:
- 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
TLV2442QD FAQ
1.How can I place an order for TLV2442QD through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV2442QD 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 TLV2442QD reliable?
The price and inventory of TLV2442QD are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV2442QD is usually 5 days.
3.What payment methods are accepted for TLV2442QD?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV2442QD transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV2442QD?
TLV2442QD orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV2442QD 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 TLV2442QD?
For technical support, including TLV2442QD datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV2442QD requirements.
6.How does Aetrix verify that TLV2442QD is sourced from the original manufacturer or authorized distributors?
All TLV2442QD 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 TLV2442QD meets industry standards.
7.What is the process for return or replacement of TLV2442QD?
All TLV2442QD units undergo pre-shipment inspection (PSI). If there is an issue with TLV2442QD, 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 TLV2442QD part is unused and in its original packaging.
Return procedure for TLV2442QD:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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