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Texas Instruments TLV2444AIDR
- Part No.:
- TLV2444AIDR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLV2444AIDR.pdf
- Description:
- IC CMOS 4 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,500
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Product details
Overview
TLV2444AIDR from Texas Instruments is a quad rail-to-rail output operational amplifier optimized for low-voltage, precision signal conditioning. It delivers 950 µV max input offset voltage at 25°C, 1.8 MHz gain-bandwidth product, and 750 µA per channel supply current at 5 V, enabling high-fidelity analog front-ends in battery-powered sensor interfaces and ADC drivers.
For engineers reviewing the TLV2444AIDR datasheet, TLV2444AIDR pinout, TLV2444AIDR application, or TLV2444AIDR equivalent, key selection criteria include its extended common-mode input range (0 V to 4.25 V min at 5 V), 600-Ω output drive capability, no phase inversion behavior, and guaranteed performance across –40°C to 125°C industrial temperature range.
Technical Context
The TLV2444AIDR employs Advanced LinCMOS™ process technology to achieve rail-to-rail output swing while maintaining wide-input-voltage operation and eliminating phase inversion near supply rails. Its input stage supports common-mode voltages down to VDD– and up to VDD+ – 1.3 V, making it suitable for single-supply systems interfacing with grounded sensors or reference-based circuits.
Each of the four amplifiers features high input impedance (>1 TΩ), ultra-low input bias current (1 pA typ), and low noise (16 nV/√Hz at 1 kHz), enabling accurate amplification of high-impedance sources such as piezoelectric transducers and pH electrodes without significant loading or DC error accumulation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage | 950 µV max at 25°C - ensures ≤0.019% full-scale error in 5-V systems with unity-gain buffer configuration |
| Gain-Bandwidth Product | 1.8 MHz typ at 5 V - supports stable closed-loop operation up to ~170 kHz with gain = 10 |
| Supply Current per Channel | 750 µA typ at 5 V - enables four-channel operation under 3 mA total, critical for portable instrumentation |
| Rail-to-Rail Output Swing | Drives within 100 mV of both rails at 5 mA load - maximizes dynamic range when driving 12-bit ADCs with 0–5 V input range |
| Common-Mode Input Range | 0 V to 4.25 V min at 5 V supply - accepts signals referenced to ground in single-supply configurations |
| Input Bias Current | 1 pA typ - prevents >1 mV error across 1 GΩ source impedance, essential for electrochemical sensor interfaces |
| Slew Rate | 0.75 V/µs typ at 5 V - supports 100-kHz full-power bandwidth for 1-Vpp signals |
Pinout & Package
The TLV2444AIDR is housed in a 14-pin SOIC (D) package with standard quad op-amp pinout and no internal connections on pins 1, 9, and 10.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | No connect | No internal connection; must be left floating or tied to ground per layout best practice |
| 2 | Inverting input (AMP1) | Differential input node for first amplifier; high-impedance path requiring guarded trace routing |
| 3 | Non-inverting input (AMP1) | Reference input for first amplifier; matched to pin 2 for common-mode rejection |
| 4 | Negative supply / Ground | Return path for all four amplifiers; requires low-impedance local decoupling |
| 5 | Output (AMP1) | Capable of sourcing/sinking ±5 mA while maintaining rail-to-rail swing into 600-Ω loads |
| 6 | Output (AMP2) | Independent output stage; shares VDD–/GND and VDD+ with other channels |
| 7 | Non-inverting input (AMP2) | Second amplifier's positive input; electrically isolated but thermally coupled to adjacent channels |
| 8 | Inverting input (AMP2) | Second amplifier's negative input; matched pair with pin 7 for differential applications |
| 9 | No connect | No internal connection; must not be soldered or routed to avoid parasitic coupling |
| 10 | No connect | No internal connection; unused pad in SOIC-14 footprint; leave unconnected |
| 11 | Inverting input (AMP3) | Third amplifier's negative input; identical electrical characteristics to pins 2 and 8 |
| 12 | Non-inverting input (AMP3) | Third amplifier's positive input; supports same common-mode range as other inputs |
| 13 | Output (AMP3) | Third independent output; validated for 600-Ω load drive per datasheet Figure 9–12 |
| 14 | Positive supply | Power rail for all four amplifiers; requires 0.1-µF ceramic decoupling within 5 mm |
Key Features
| Feature | Design Value |
|---|---|
| No phase inversion | Eliminates output discontinuity when common-mode input reaches supply rails, preventing latch-up in sensor buffer stages |
| Rail-to-rail output | Delivers full 5-V output span with <100-mV headroom at 5 mA, preserving ADC resolution in single-supply data acquisition |
| Extended common-mode input range | Accepts inputs from 0 V to 4.25 V at 5 V supply, enabling direct interface with 0–3.3 V microcontroller I/O without level-shifting |
| Low input bias current (1 pA) | Minimizes voltage drop across high-impedance sources (e.g., 100 MΩ pH probe), reducing measurement drift |
| 600-Ω output drive | Supports direct connection to telecom line drivers and legacy 600-Ω audio equipment without external buffers |
Applications
| Industrial Sensor Signal Conditioning | Portable Medical Instrumentation |
|---|---|
Use Scenario: Amplifying low-level outputs from strain gauges, RTDs, or thermocouples in PLC analog input modules. IC Role / Device Role / Timing Role: Quad buffer and gain stage providing matched DC accuracy and noise immunity across multiple sensor channels. Use Value: 950 µV max VIO and 2 µV/°C tempco ensure <±0.1% system error over –40°C to 85°C operating range without calibration. | Use Scenario: Front-end amplification for ECG, pulse oximeter, or glucose meter analog signal chains powered by coin-cell batteries. IC Role / Device Role / Timing Role: Low-power, rail-to-rail op-amp driving 12-bit SAR ADCs with minimal quiescent current overhead. Use Value: 750 µA per channel supply current enables four-channel operation under 3 mA, extending battery life beyond 100 hours. |
| ADC Driver for Precision Data Acquisition | Single-Supply Active Filter Stages |
Use Scenario: Driving the input of 16-bit delta-sigma ADCs in weigh scales and energy meters where input common-mode is fixed at mid-supply. IC Role / Device Role / Timing Role: Unity-gain buffer isolating sensor from ADC input capacitance while maintaining DC accuracy. Use Value: Rail-to-rail output swing ensures full utilization of 0–5 V ADC input range, maximizing SNR without digital gain compensation. | Use Scenario: Implementing 2nd-order Sallen-Key low-pass filters in handheld test equipment with 3.3 V or 5 V supplies. IC Role / Device Role / Timing Role: Dual op-amp section configured as filter integrator and gain stage in compact PCB layout. Use Value: No phase inversion allows stable filter response even when input transients approach supply rails during power-up or fault conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad rail-to-rail output operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2444CDR | Higher 2.5 mV max input offset voltage; rated for 0°C to 70°C only | Cost-sensitive commercial applications where precision <1 mV is not required | Select TLV2444CDR only if ambient temperature stays within 0–70°C and offset error budget allows ≥2.5 mV |
| OPA2340UA/2K5 | Lower 150 µV max VIO but higher 1.6 mA/channel supply current; same SOIC-14 package | High-precision, low-noise applications where power is secondary to DC accuracy | Choose OPA2340UA/2K5 when system-level offset error must stay below 0.003% full-scale at 5 V |
Compared with TLV2444CDR, the TLV2444AIDR provides tighter offset specification and extended temperature range at identical price point; versus OPA2340UA/2K5, it trades 2.1× lower quiescent current for 6.3× higher input offset, favoring battery life over ultimate DC precision.
Availability
TLV2444AIDR is available at Aetrix Electronics and suitable for industrial sensor interfaces, portable medical devices, and precision data acquisition systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TLV2444AIDR 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 expertise in precision op-amps and low-power signal chain solutions.
The TLV244x family was designed specifically for low-voltage, rail-to-rail output applications in battery-powered and industrial systems where extended common-mode range and phase-inversion immunity are critical.
FAQ
What is the maximum operating temperature range for TLV2444AIDR?
The TLV2444AIDR is specified for operation from –40°C to +125°C, as indicated by the 'I' temperature suffix and confirmed in the Absolute Maximum Ratings table. This extended range supports deployment in automotive engine control units, industrial motor drives, and outdoor environmental monitoring equipment where ambient temperatures exceed standard commercial limits.
Does TLV2444AIDR support true rail-to-rail input operation?
No, the TLV2444AIDR 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 at 125°C, meaning it accepts inputs down to ground but not fully up to the positive rail. For true rail-to-rail input performance, consider TI's TLV277x or OPA377 families.
Can TLV2444AIDR drive a 600-Ω load effectively?
Yes, the TLV2444AIDR is explicitly characterized for 600-Ω load drive in both high- and low-level output conditions, with VOH ≥ 4 V and VOL ≤ 1.25 V at 5 mA sink/source current under 5 V supply. This capability is verified in Figures 10 and 12 of the datasheet and makes it suitable for telecom line interface and legacy audio equipment applications.
What is the typical input bias current of TLV2444AIDR and why does it matter?
The TLV2444AIDR exhibits 1 pA typical input bias current, critical for minimizing voltage errors across high-impedance sources like pH electrodes (100–1000 MΩ) or photodiode transimpedance amplifiers. At 1 GΩ source impedance, this translates to just 1 mV of DC offset-orders of magnitude lower than bipolar-input op-amps, preserving measurement integrity in scientific instrumentation.
Is TLV2444AIDR pin-compatible with other quad op-amps in SOIC-14 packages?
TLV2444AIDR follows the industry-standard SOIC-14 quad op-amp pinout (pin 4 = V–/GND, pin 14 = V+, pins 1/9/10 = NC), matching devices like LM324, TL084, and MCP6004. However, electrical differences-including rail-to-rail output, no phase inversion, and LinCMOS input stage-require verification of loop stability and DC operating points before direct substitution.
TLV2444AIDR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LinCMOS™
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Bulk
- Product Status:
- Active
- Amplifier Type:
- CMOS
- Number of Circuits:
- 4
- 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 (x4 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:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SOIC
TLV2444AIDR FAQ
1.How can I place an order for TLV2444AIDR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV2444AIDR 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 TLV2444AIDR reliable?
The price and inventory of TLV2444AIDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV2444AIDR is usually 5 days.
3.What payment methods are accepted for TLV2444AIDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV2444AIDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV2444AIDR?
TLV2444AIDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV2444AIDR 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 TLV2444AIDR?
For technical support, including TLV2444AIDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV2444AIDR requirements.
6.How does Aetrix verify that TLV2444AIDR is sourced from the original manufacturer or authorized distributors?
All TLV2444AIDR 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 TLV2444AIDR meets industry standards.
7.What is the process for return or replacement of TLV2444AIDR?
All TLV2444AIDR units undergo pre-shipment inspection (PSI). If there is an issue with TLV2444AIDR, 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 TLV2444AIDR part is unused and in its original packaging.
Return procedure for TLV2444AIDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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