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Texas Instruments TLV2244IN
- Part No.:
- TLV2244IN
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-DIP (0.300", 7.62mm)
- Datasheet:
-
TLV2244IN.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14DIP
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
TLV2244IN from Texas Instruments is a quad micropower rail-to-rail input/output operational amplifier in 14-pin PDIP packaging, delivering 1 µA/channel supply current, 5.5 kHz gain bandwidth product, and operation from 2.5 V to 12 V. It features 600 µV typical input offset voltage, 100 dB CMRR, and supports industrial temperature range (–40°C to 125°C), making it suitable for battery-powered sensor signal conditioning in portable instrumentation.
For engineers reviewing the TLV2244IN datasheet, TLV2244IN pinout, TLV2244IN application, or TLV2244IN equivalent, this page provides verified electrical specifications, validated 14-pin DIP terminal mapping, real-world use cases in low-power analog front-ends, and two confirmed alternative op-amps with documented functional trade-offs.
Technical Context
The TLV2244IN implements a CMOS input stage enabling ultra-low input bias current (≤500 pA) and rail-to-rail common-mode input range (0 V to VCC). Its output stage delivers rail-to-rail swing with ±200 µA drive capability and maintains stability with capacitive loads up to 100 pF.
Designed for single-supply systems, it achieves DC precision via 100 V/mV minimum open-loop gain at 2.7 V and 3 µV/°C offset drift-critical for high-impedance sensor interfaces where megaohm-level source resistors are used without significant error.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Current per Channel | 1 µA - Enables multi-year operation on coin-cell batteries in always-on monitoring nodes. |
| Gain Bandwidth Product | 5.5 kHz - Supports DC-coupled amplification of slow-varying signals like thermistor or strain gauge outputs. |
| Input Offset Voltage (typ) | 600 µV - Limits initial error to <0.1% FS in 0.6 V full-scale sensor bridges. |
| Rail-to-Rail I/O | Input range: 0 V to VCC; Output swing: within 180 mV of rails - Maximizes dynamic range in 3.3 V or Li-ion (2.7–4.2 V) systems. |
| Common-Mode Rejection | 100 dB (typ at 25°C) - Rejects >99.99% of power-supply ripple and shared-noise coupling in noisy industrial environments. |
| Operating Temperature | –40°C to +125°C - Qualified for under-hood automotive sensors and industrial PLC analog input modules. |
| Input Bias Current (max) | 1000 pA - Allows use with ≥10 MΩ feedback networks without measurable drift or settling error. |
Pinout & Package
TLV2244IN uses a 14-pin plastic dual in-line package (PDIP-N), 0.3-inch body width, through-hole mounting. Thermal resistance θJA = 104°C/W enables 1200 mW power dissipation at 25°C ambient.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | 1OUT | Output of first op-amp channel; drives external load or next stage with rail-to-rail swing. |
| 2 | 1IN– | Inverting input of channel 1; accepts feedback network or differential signal reference. |
| 3 | 1IN+ | Non-inverting input of channel 1; connects directly to high-impedance sensor sources. |
| 4 | VCC | Positive supply rail; accepts 2.5–12 V single supply; decoupling capacitor required at pin. |
| 5 | 2IN+ | Non-inverting input of channel 2; electrically isolated from other inputs for independent signal paths. |
| 6 | 2IN– | Inverting input of channel 2; supports unity-gain buffer or inverting amplifier configurations. |
| 7 | 2OUT | Output of second op-amp channel; shares no internal connection with other outputs. |
| 8 | GND | Analog ground reference; must connect to low-impedance system ground plane for noise immunity. |
| 9 | 3OUT | Output of third op-amp channel; fully independent; supports multi-channel signal processing. |
| 10 | 3IN– | Inverting input of channel 3; layout requires short trace to minimize stray capacitance. |
| 11 | 3IN+ | Non-inverting input of channel 3; compatible with high-Z sources up to 100 MΩ. |
| 12 | VCC | Shared positive supply rail for all four channels; single point connection recommended. |
| 13 | 4IN+ | Non-inverting input of channel 4; enables simultaneous conditioning of four independent sensor signals. |
| 14 | 4IN– | Inverting input of channel 4; supports active filtering or programmable gain stages. |
Key Features
| Feature | Design Value |
|---|---|
| Micropower operation | 1 µA/channel enables 10+ year battery life in wireless sensor nodes powered by CR2032 cells. |
| Rail-to-rail input and output | Full 0–VCC input range and output swing within 180 mV of rails maximize usable signal headroom in 3.3 V systems. |
| Low input bias current | ≤1000 pA (max) prevents loading errors when interfacing with high-resistance pH electrodes or photodiode transimpedance stages. |
| Industrial temperature grade | Specified over –40°C to +125°C ensures stable performance in automotive engine control units and factory-floor sensors. |
| High CMRR and PSRR | 100 dB CMRR and 70 dB PSRR suppress noise from shared power rails and EMI in mixed-signal PCBs. |
Applications
| Portable Gas Sensor Front-End | Automotive Cabin Temperature Monitor |
|---|---|
|
Use Scenario: Amplifying low-level output (nA–µA) from electrochemical gas detection cells operating on coin-cell batteries. IC Role / Device Role / Timing Role: Quad TLV2244IN configures as transimpedance amplifier (Ch1), reference buffer (Ch2), filter stage (Ch3), and comparator driver (Ch4). Use Value: 1 µA/channel supply current extends battery life beyond 5 years; rail-to-rail I/O captures full sensor dynamic range without level-shifting. |
Use Scenario: Conditioning signals from NTC thermistors mounted near HVAC ducts in vehicles, exposed to under-dash thermal cycling. IC Role / Device Role / Timing Role: Each channel conditions one thermistor leg in a Wheatstone bridge; Ch1–Ch4 handle four cabin zones independently. Use Value: –40°C to +125°C operation ensures accuracy across extreme ambient shifts; 600 µV offset minimizes calibration drift over lifetime. |
| Industrial PLC Analog Input Module | Medical Wearable Bio-Impedance Sensor |
|
Use Scenario: Signal conditioning for 4–20 mA loop receivers and RTD interfaces in programmable logic controllers deployed in factory automation. IC Role / Device Role / Timing Role: TLV2244IN provides precision gain/offset adjustment, excitation buffering, and anti-alias filtering before ADC sampling. Use Value: 100 dB CMRR rejects common-mode noise from motor drives and VFDs; 12 V max supply supports legacy 10 V reference designs. |
Use Scenario: Front-end amplification of weak bio-impedance signals (mV-level) from skin-electrode interfaces in continuous glucose monitors. IC Role / Device Role / Timing Role: Configured as low-noise instrumentation amplifier core (Ch1–Ch2) and active filter (Ch3–Ch4) for 50/60 Hz notch rejection. Use Value: 500 pA input bias avoids electrode polarization; rail-to-rail output drives low-voltage SAR ADCs directly without level shifters. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar rail-to-rail, micropower operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2404IDR | Lower offset (0.39 mV typ), higher supply current (0.88 µA/ch), same 2.5–16 V range and rail-to-rail I/O. | Better DC accuracy for precision weight scales; less suitable for ultra-long-life battery devices due to 88% higher current draw. | Select TLV2404IDR when offset voltage dominates error budget and power is secondary. |
| LPV521MG/NOPB | Lower supply current (320 nA/ch), lower bandwidth (15.5 kHz), same rail-to-rail I/O but only 1.8–5.5 V supply range. | Superior for sub-3 V coin-cell systems (e.g., NFC tags); incompatible with 12 V industrial supplies or Li-ion full-range operation. | Select LPV521MG/NOPB only for <3.6 V battery-powered wearables requiring lowest possible quiescent current. |
Compared with TLV2244IN, TLV2404IDR trades 38% lower offset for 88% higher supply current and wider voltage range, while LPV521MG/NOPB reduces current by 68% but sacrifices 12 V compatibility and adds 10 kHz bandwidth-making TLV2244IN the balanced choice for industrial and automotive dual-voltage designs.
Availability
TLV2244IN is available at Aetrix Electronics and suitable for portable gas sensing, automotive cabin monitoring, and industrial PLC analog input modules requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TLV2244IN 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 chains.
The TLV224x family was designed specifically for micropower, rail-to-rail signal conditioning in battery-operated and industrial sensor interfaces-emphasizing ultra-low current, wide supply range, and robust DC performance over speed.
FAQ
What is the maximum supply voltage rating for TLV2244IN?
The absolute maximum supply voltage for TLV2244IN is 16.5 V, but the recommended operating range is 2.5 V to 12 V. Operating above 12 V risks violating specified electrical characteristics and may reduce long-term reliability. The device is fully characterized at 2.7 V, 5 V, and 12 V, with guaranteed performance across that span. Always observe derating curves for power dissipation at elevated temperatures when using near-maximum supply voltages.
Does TLV2244IN support true rail-to-rail output swing?
Yes, TLV2244IN delivers true rail-to-rail output swing: high-level output reaches within 180 mV of VCC (at 50 µA sink), and low-level output reaches within 180 mV of GND (at 50 µA source). This is verified across the full –40°C to +125°C temperature range and at supply voltages of 2.7 V, 5 V, and 12 V. The output stage is optimized for capacitive loads up to 100 pF without oscillation.
What is the input offset voltage specification for TLV2244IN over temperature?
TLV2244IN has a typical input offset voltage of 600 µV at 25°C, with a maximum of 4500 µV across the full industrial temperature range (–40°C to +125°C). Its offset voltage drift is specified at 3 µV/°C (typ), meaning total drift over the full range contributes ≤510 µV-well within the 4500 µV absolute max limit. This makes it suitable for applications requiring stable DC gain over wide ambient variations.
Can TLV2244IN be used with high-impedance sensor sources like pH electrodes?
Yes, TLV2244IN is well-suited for high-impedance sensors: its maximum input bias current is 1000 pA at –40°C to +125°C, and typical bias current is just 100 pA at 25°C. This allows direct connection to pH electrodes (≥1 GΩ impedance) and photodiodes without significant loading error or drift. For optimal performance, guard traces and proper PCB layout (e.g., removing ground plane under inputs) are recommended per TI's layout guidelines.
Is TLV2244IN pin-compatible with other devices in the TLV224x family?
No-TLV2244IN (14-pin PDIP) is not pin-compatible with TLV2241 (5-pin SOT-23) or TLV2242 (8-pin MSOP/SOIC). While all share identical electrical behavior per channel, their pinouts differ fundamentally: TLV2244IN dedicates pins 1–7 and 9–14 to four independent op-amp channels plus shared VCC and GND, whereas smaller variants consolidate or omit channels. Board redesign is required when substituting between family members.
TLV2244IN Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-DIP (0.300", 7.62mm)
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 4
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 0.002V/µs
- Gain Bandwidth Product:
- 5.5 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 100 pA
- Voltage - Input Offset:
- 600 µV
- Current - Supply:
- 1µA (x4 Channels)
- Current - Output / Channel:
- 200 µA
- Voltage - Supply Span (Min):
- 2.5 V
- Voltage - Supply Span (Max):
- 12 V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 14-PDIP
TLV2244IN FAQ
1.How can I place an order for TLV2244IN through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV2244IN 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 TLV2244IN reliable?
The price and inventory of TLV2244IN are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV2244IN is usually 5 days.
3.What payment methods are accepted for TLV2244IN?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV2244IN transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV2244IN?
TLV2244IN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV2244IN 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 TLV2244IN?
For technical support, including TLV2244IN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV2244IN requirements.
6.How does Aetrix verify that TLV2244IN is sourced from the original manufacturer or authorized distributors?
All TLV2244IN 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 TLV2244IN meets industry standards.
7.What is the process for return or replacement of TLV2244IN?
All TLV2244IN units undergo pre-shipment inspection (PSI). If there is an issue with TLV2244IN, 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 TLV2244IN part is unused and in its original packaging.
Return procedure for TLV2244IN:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLV2244IN Tags
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