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Texas Instruments TLV2442AIDR
- Part No.:
- TLV2442AIDR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLV2442AIDR.pdf
- Description:
- IC CMOS 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:6,223
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Product details
Overview
TLV2442AIDR from Texas Instruments is a dual rail-to-rail output operational amplifier optimized for low-voltage, wide-input-voltage operation. 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 from 2.7 V to 10 V supplies-enabling precision signal conditioning in battery-powered sensor interfaces and ADC driver stages.
For engineers reviewing the TLV2442AIDR datasheet, TLV2442AIDR pinout, TLV2442AIDR application, or TLV2442AIDR equivalent, key selection criteria include its extended common-mode input range (0 V to 4.25 V min at 5 V), 1 pA typical input bias current, 16 nV/√Hz input voltage noise at 1 kHz, 600-Ω output drive capability, and guaranteed performance across –40°C to 85°C.
Technical Context
The TLV2442AIDR uses Advanced LinCMOS™ process technology to achieve rail-to-rail output swing without phase inversion when common-mode inputs reach either supply rail. Its input stage supports extended common-mode range down to VDD– and up to VDD+ – 1 V at 3 V supply, enabling direct interfacing with low-voltage microcontrollers and single-supply data acquisition systems.
It features high open-loop gain (≥750 V/mV at RL = 600 Ω), low closed-loop output impedance (140 Ω at 1 MHz), and stable unity-gain operation with 68° phase margin into 600-Ω loads and 100-pF capacitance-making it suitable for driving capacitive ADC inputs and moderate-impedance transducer buffers without external compensation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 10 V - supports single-cell Li-ion, 3.3 V, and 5 V systems without level-shifting |
| Input Offset Voltage (max) | 950 µV at TA = 25°C - enables <1 LSB error in 12-bit ADC driver applications at 3 V full-scale |
| Gain-Bandwidth Product | 1.8 MHz typ at VDD = 5 V - sufficient for anti-aliasing filters and sensor signal amplification up to ~100 kHz |
| Output Drive Capability | 600-Ω load at ±3 mA - directly drives telecom line drivers and SAR ADC reference buffers |
| Input Bias Current | 1 pA typ - preserves signal integrity in high-impedance piezoelectric and pH sensor front-ends |
| Input Voltage Noise | 16 nV/√Hz at f = 1 kHz - critical for low-noise amplification of microvolt-level biopotential signals |
| Common-Mode Input Range | 0 V to 4.25 V (min) at 5 V supply - accommodates ground-referenced sensors and rail-sensing circuits |
Pinout & Package
TLV2442AIDR is housed in an 8-pin SOIC (D) package with standard dual op-amp pinout and no internal connections on unused pins. The device is tape-and-reel packaged (R suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting input of Channel 1 | High-impedance node accepting differential feedback; compatible with resistor networks up to 10 MΩ |
| 2 | Non-inverting input of Channel 1 | Accepts single-ended or differential sensor signals; common-mode range extends to both rails |
| 3 | Output of Channel 1 | Rail-to-rail capable output; drives 600-Ω loads to within 250 mV of rails at 3 mA |
| 4 | Negative supply / Ground | Reference for dual-supply operation or ground return in single-supply configurations |
| 5 | Non-inverting input of Channel 2 | Independent input for second signal path; identical electrical specs to Channel 1 |
| 6 | Inverting input of Channel 2 | Supports independent feedback network; no crosstalk between channels observed in characterization |
| 7 | Output of Channel 2 | Full rail-to-rail swing; tested to deliver 3 mA into 600-Ω load with <1.25 V VOL at 5 V supply |
| 8 | Positive supply | Accepts 2.7–10 V; internal regulation ensures stable biasing across full operating temperature range |
Key Features
| Feature | Design Value |
|---|---|
| No phase inversion | Common-mode input can be driven to VDD– or VDD+ without output polarity reversal-eliminates need for input clamping diodes |
| Rail-to-rail output | Swings within 250 mV of supply rails under 3 mA load-maximizes dynamic range in 3.3 V and 5 V systems |
| Low input bias current | 1 pA typical enables use with >1 GΩ source impedances (e.g., electret mics, photodiode TIA feedback) |
| Extended common-mode range | 0 V to 4.25 V (min) at 5 V supply allows direct connection to 0 V-referenced sensors without level shifters |
| Low power consumption | 750 µA per channel at 25°C permits dual-channel amplification in sub-2 mA total system budget |
Applications
| Portable Biomedical Sensors | Industrial 4–20 mA Loop Receivers |
|---|---|
Use Scenario: Amplifying low-amplitude ECG or EEG signals from dry electrodes in handheld monitors. IC Role / Device Role / Timing Role: First-stage instrumentation amplifier with high input impedance and low noise. Use Value: 1 pA input bias current prevents electrode polarization; 16 nV/√Hz noise preserves microvolt-level signal fidelity. | Use Scenario: Converting 4–20 mA loop current to precise 0–5 V analog input for PLC analog modules. IC Role / Device Role / Timing Role: Low-drift current-to-voltage converter with rail-to-rail output scaling. Use Value: 950 µV max VIO ensures <0.02% FSR error over temperature; 600-Ω drive supports RC filtering before ADC sampling. |
| Single-Supply Data Acquisition Front-Ends | Low-Power Remote Environmental Monitoring |
Use Scenario: Buffering thermistor or RTD bridge outputs into SAR ADCs in 3.3 V embedded systems. IC Role / Device Role / Timing Role: Rail-to-rail output driver ensuring full ADC input range utilization. Use Value: Output swings to within 250 mV of 0 V and 3.3 V rails-enables true 12-bit resolution without headroom loss. | Use Scenario: Signal conditioning for battery-operated soil moisture or air quality sensors deployed for years. IC Role / Device Role / Timing Role: Ultra-low-power dual-channel amplifier powering sensor excitation and signal gain. Use Value: 750 µA per channel enables multi-year operation on coin-cell batteries; –40°C to 85°C rating ensures field reliability. |
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 |
|---|---|---|---|
| OPA2340UA | Higher 5.5 MHz GBW but 1.6 mA/ch supply current; 500 µV max VIO at 25°C | Better for higher-speed filtering; less suitable for sub-1 mA power budgets | Select when bandwidth >2 MHz required and power is secondary |
| MCP6022-I/SN | Lower 10 µV max VIO but 1.1 mA/ch supply current; 10 MHz GBW; not specified for rail-to-rail input | Superior DC precision for instrumentation; lacks extended common-mode range near rails | Select when ultra-low offset dominates over input range and power constraints |
Compared with OPA2340UA and MCP6022-I/SN, TLV2442AIDR offers the optimal balance of rail-to-rail output, extended input common-mode range, sub-1 mA power, and 950 µV offset-making it uniquely suited for cost-sensitive, battery-powered industrial and medical signal chains where supply headroom is constrained.
Availability
TLV2442AIDR is available at Aetrix Electronics and suitable for portable biomedical sensors, industrial 4–20 mA loop receivers, and single-supply data acquisition front-ends requiring stable component supply across automotive-grade temperature ranges and long production lifecycles.
Supply support for TLV2442AIDR 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 and embedded processing solutions for industrial, automotive, and personal electronics markets.
The TLV244x family was designed specifically for low-voltage, rail-to-rail output precision amplification in space- and power-constrained applications-including handheld instrumentation, remote sensing, and single-supply data acquisition systems.
FAQ
What is the maximum operating temperature range for TLV2442AIDR?
The TLV2442AIDR is rated for operation from –40°C to +85°C, as indicated by its "I" temperature suffix. This range is validated per TI's characterization and qualification testing, and the device maintains all specified electrical parameters-including input offset voltage, CMRR, and output drive-across this full industrial temperature span. Thermal derating follows the SOIC package dissipation rating table in the datasheet.
Does TLV2442AIDR support true rail-to-rail input operation?
No, TLV2442AIDR provides rail-to-rail *output* swing but not rail-to-rail *input*. Its common-mode input voltage range extends from VDD– to VDD+ – 1 V at 3 V supply and VDD– to VDD+ – 1.3 V at 5 V supply. At 5 V, this yields 0 V to 4.25 V (min), allowing inputs within 250 mV of the positive rail-but not to VDD itself. Input phase inversion is avoided across this full range.
Can TLV2442AIDR drive a 1000-pF capacitive load stably?
TLV2442AIDR is characterized for stability with 100-pF capacitive loads and 600-Ω series resistance, achieving 68° phase margin at unity gain. Driving 1000-pF directly may induce peaking or oscillation. For such loads, add a 10–50 Ω isolation resistor in series with the output, or use a unity-gain buffer configuration with external compensation per Figure 31 in the datasheet.
What is the typical input bias current of TLV2442AIDR and why does it matter?
The typical input bias current of TLV2442AIDR is 1 pA at 25°C, with a maximum of 150 pA across –40°C to 125°C. This ultra-low value minimizes voltage errors in high-impedance circuits-such as those using >10 MΩ feedback resistors in photodiode transimpedance amplifiers or thermocouple cold-junction compensation-where even nanoampere-level currents would introduce significant offset and drift.
Is TLV2442AIDR pin-compatible with other devices in the TLV244x family?
Yes, TLV2442AIDR shares identical 8-pin SOIC (D) pinout with TLV2442CD, TLV2442ID, TLV2442AQD, and TLV2442QD. All variants maintain the same pin functions: Pins 1–3 and 5–7 are Channel 1 and Channel 2 I/O; Pin 4 is VDD–/GND; Pin 8 is VDD+. No PCB layout changes are required when substituting within the TLV2442x D-package variants.
TLV2442AIDR 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:
- 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 ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
TLV2442AIDR FAQ
1.How can I place an order for TLV2442AIDR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV2442AIDR 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 TLV2442AIDR reliable?
The price and inventory of TLV2442AIDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV2442AIDR is usually 5 days.
3.What payment methods are accepted for TLV2442AIDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV2442AIDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV2442AIDR?
TLV2442AIDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV2442AIDR 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 TLV2442AIDR?
For technical support, including TLV2442AIDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV2442AIDR requirements.
6.How does Aetrix verify that TLV2442AIDR is sourced from the original manufacturer or authorized distributors?
All TLV2442AIDR 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 TLV2442AIDR meets industry standards.
7.What is the process for return or replacement of TLV2442AIDR?
All TLV2442AIDR units undergo pre-shipment inspection (PSI). If there is an issue with TLV2442AIDR, 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 TLV2442AIDR part is unused and in its original packaging.
Return procedure for TLV2442AIDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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