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Texas Instruments TLV2442ID
- Part No.:
- TLV2442ID
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLV2442ID.pdf
- Description:
- IC CMOS 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,525
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Product details
Overview
TLV2442ID 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, and 950 µV max input offset voltage at 25°C, with rail-to-rail output swing (0 V to VDD–1 V) and extended common-mode input range (0 V to 4.25 V min at 5-V supply). It is used in precision signal conditioning for high-impedance sources such as piezoelectric transducers.
For engineers reviewing the TLV2442ID datasheet, TLV2442ID pinout, TLV2442ID application, or TLV2442ID equivalent, key selection criteria include its 600-Ω output drive capability, no phase inversion under rail-stressed inputs, low 16 nV/√Hz input noise at 1 kHz, and qualification for industrial temperature range (–40°C to 85°C).
Technical Context
The TLV2442ID employs Advanced LinCMOS™ process technology to achieve high input impedance (>1 TΩ), ultra-low input bias current (1 pA typ), and rail-to-rail output stage capable of sourcing/sinking ±5 mA while maintaining linearity into 600-Ω loads. Its input stage avoids phase inversion when common-mode voltage reaches either supply rail - a critical advantage over standard CMOS op-amps in single-supply sensor interfaces.
It operates across 2.7 V to 10 V supply range and is fully characterized at 3 V and 5 V. The device exhibits stable unity-gain performance with 65° phase margin (RL = 600 Ω, CL = 100 pF) and supports precision DC-coupled applications due to low offset drift (2 µV/°C) and long-term stability (0.002 µV/month).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 10 V - enables direct use in 3.3 V and 5 V systems without level-shifting. |
| Gain-Bandwidth Product | 1.8 MHz typ - supports stable closed-loop operation up to ~100 kHz with moderate gain. |
| Input Offset Voltage | 950 µV max at 25°C - ensures <1 LSB error in 12-bit ADC interfacing with 5 V reference. |
| Output Drive Capability | ±5 mA into 600 Ω - drives telecom line drivers and SAR ADC reference buffers without external buffering. |
| Input Bias Current | 1 pA typ - preserves signal integrity in high-Z sensor front-ends (e.g., pH electrodes, photodiodes). |
| Common-Mode Input Range | 0 V to 4.25 V min at 5 V supply - accepts signals from ground up to near VDD, simplifying single-supply design. |
| Slew Rate | 0.75 V/µs typ at 5 V - adequate for <100 kHz full-scale step response in data acquisition channels. |
Pinout & Package
TLV2442ID is packaged in an 8-pin SOIC (D package) with exposed pad not present; pinout matches industry-standard dual op-amp configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Inverting amplifier output - rail-to-rail swing supports full dynamic range into ADC inputs. |
| 2 | IN– A | Inverting input - high-impedance node; sensitive to PCB leakage and guarding requirements. |
| 3 | IN+ A | Non-inverting input - accepts common-mode voltages from VDD– to VDD+–1 V. |
| 4 | GND / VDD– | Negative supply or ground reference - shared return path for both amplifiers. |
| 5 | IN+ B | Non-inverting input of second amplifier - independent channel for differential sensing or dual-path signal chain. |
| 6 | IN– B | Inverting input of second amplifier - matched characteristics enable precision instrumentation configurations. |
| 7 | OUT B | Second amplifier output - identical AC/DC specs to OUT A; enables dual-channel filtering or gain stages. |
| 8 | VDD+ | Positive supply - decoupling required within 1 cm for stable high-frequency performance. |
Key Features
| Feature | Design Value |
|---|---|
| No phase inversion | Operates linearly even when common-mode input reaches VDD or GND - eliminates need for input clamping diodes. |
| Rail-to-rail output | Swings within 100 mV of supply rails at 3 mA load - maximizes ADC utilization in low-voltage systems. |
| Low input noise | 16 nV/√Hz at 1 kHz - preserves SNR in low-level sensor amplification (e.g., strain gauges, thermopiles). |
| Extended common-mode range | 0 V to 4.25 V (min) at 5 V supply - accommodates unbuffered sensor outputs directly referenced to ground. |
| Low power consumption | 750 µA per channel - enables battery-powered remote sensors with >1-year runtime on coin cells. |
Applications
| Piezoelectric Sensor Signal Conditioning | Industrial 4–20 mA Transmitter Interface |
|---|---|
Use Scenario: Amplifying high-impedance, low-level charge output from accelerometers or pressure sensors. IC Role / Device Role / Timing Role: First-stage charge-to-voltage converter with ultra-low input bias current and no phase inversion. Use Value: 1 pA input bias prevents signal droop; rail-to-rail output ensures full-scale digitization by 12-bit ADCs. | Use Scenario: Buffering and level-shifting sensor output before current loop driver stage in field transmitters. IC Role / Device Role / Timing Role: Precision voltage follower and gain stage operating from 3.3 V or 5 V supply. Use Value: 950 µV max offset minimizes zero-error in calibrated 4–20 mA output; 600-Ω drive supports DAC buffer loads. |
| Portable Medical ECG Front-End | ADC Reference Buffer for SAR Converters |
Use Scenario: Low-noise amplification of microvolt-level biopotential signals in handheld ECG devices. IC Role / Device Role / Timing Role: Instrumentation-grade signal conditioner with high CMRR and low 1/f noise. Use Value: 16 nV/√Hz noise floor and 70 dB CMRR at DC preserve diagnostic fidelity; low power extends battery life. | Use Scenario: Driving the reference input of 12–16 bit successive-approximation ADCs requiring low-impedance, stable voltage. IC Role / Device Role / Timing Role: Low-drift, low-noise unity-gain buffer isolating precision voltage reference from ADC switching currents. Use Value: 2 µV/°C offset drift and rail-to-rail output ensure reference accuracy across temperature; 65° phase margin prevents oscillation. |
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 |
|---|---|---|---|
| OPA2340UA | Higher GBW (5.5 MHz), higher supply current (800 µA/ch), same 950 µV VIO max, but only rated to 85°C. | Preferred for higher-speed filtering or active anti-aliasing; less suitable for extended industrial temp range. | Select OPA2340UA when bandwidth >2 MHz is required and temperature range ≤85°C suffices. |
| MCP6022-I/SN | Lower GBW (10 MHz), higher input bias (1 pA still), 3 mV VIO max, wider temp range (–40°C to 125°C), but no guaranteed phase inversion immunity. | Better for cost-sensitive consumer designs; unsuitable where rail-to-rail input or phase inversion immunity is mandatory. | Choose MCP6022-I/SN for high-volume, non-critical industrial use where offset tolerance >950 µV is acceptable. |
Compared with OPA2340UA and MCP6022-I/SN, TLV2442ID uniquely combines guaranteed no-phase-inversion behavior, 950 µV max offset over –40°C to 85°C, and 600-Ω drive - making it optimal for precision single-supply sensor interfaces where reliability and rail compatibility are non-negotiable.
Availability
TLV2442ID is available at Aetrix Electronics and suitable for industrial sensor signal conditioning, portable medical instrumentation, and 4–20 mA transmitter designs requiring stable component supply across extended temperature ranges.
Supply support for TLV2442ID 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 solutions, with decades of expertise in precision op-amp design and manufacturing.
The TLV244x family was engineered for low-voltage, rail-to-rail output applications in battery-powered and industrial systems - emphasizing input stage robustness, output drive, and DC precision without sacrificing power efficiency.
FAQ
What is the operating temperature range for TLV2442ID?
The TLV2442ID is specified for industrial operation from –40°C to +85°C. This range is confirmed in the Absolute Maximum Ratings and Recommended Operating Conditions tables of the SLOS169H datasheet, and applies specifically to the 'I' suffix dual-package variants including TLV2442ID. It is not rated for automotive or military temperature grades unless explicitly marked with Q or M suffixes.
Does TLV2442ID support true rail-to-rail input?
No, TLV2442ID features rail-to-rail *output* only. Its common-mode input voltage range extends to 0 V and up to VDD–1 V (min 4.25 V at 5 V supply), but does not include the positive rail. The datasheet explicitly states "Wide-Input-Voltage" and "No Phase Inversion" - meaning it tolerates inputs at the rails without malfunction, but does not sense *at* VDD. True rail-to-rail input requires separate devices like the TLV2462.
Can TLV2442ID drive a 100 kΩ load with rail-to-rail output swing?
Yes. TLV2442ID maintains rail-to-rail output swing (within 100 mV of rails) into loads ≥100 kΩ at room temperature. The datasheet specifies VOH ≥4.0 V and VOL ≤0.8 V at 5 V supply with 5 mA load (600 Ω), and open-load conditions show VOH ≈4.97 V and VOL ≈0.01 V - confirming full swing into high-Z loads typical of ADC references and comparator inputs.
Is TLV2442ID pin-compatible with other dual op-amps in SOIC-8 packages?
TLV2442ID uses the standard dual op-amp pinout (pin 1 = OUT A, pin 2 = IN– A, pin 3 = IN+ A, pin 4 = GND, pin 5 = IN+ B, pin 6 = IN– B, pin 7 = OUT B, pin 8 = VDD+), matching industry conventions (e.g., LM358, TL072). However, electrical behavior differs significantly - especially input bias, offset, and phase inversion immunity - so functional replacement requires validation of system-level performance, not just pin mapping.
What is the maximum capacitive load TLV2442ID can drive without instability?
TLV2442ID remains stable with up to 100 pF capacitive load when driving 600 Ω, as verified by 65° phase margin in the datasheet's Typical Characteristics (Figure 19). For loads >100 pF, external isolation resistance (e.g., 10–100 Ω in series with output) is recommended. The device is not unity-gain compensated for direct capacitive loading beyond this limit, and layout parasitics must be minimized to avoid oscillation.
TLV2442ID 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 ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
TLV2442ID FAQ
1.How can I place an order for TLV2442ID through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV2442ID 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 TLV2442ID reliable?
The price and inventory of TLV2442ID are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV2442ID is usually 5 days.
3.What payment methods are accepted for TLV2442ID?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV2442ID transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV2442ID?
TLV2442ID orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV2442ID 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 TLV2442ID?
For technical support, including TLV2442ID datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV2442ID requirements.
6.How does Aetrix verify that TLV2442ID is sourced from the original manufacturer or authorized distributors?
All TLV2442ID 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 TLV2442ID meets industry standards.
7.What is the process for return or replacement of TLV2442ID?
All TLV2442ID units undergo pre-shipment inspection (PSI). If there is an issue with TLV2442ID, 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 TLV2442ID part is unused and in its original packaging.
Return procedure for TLV2442ID:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLV2442ID Tags
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