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Texas Instruments LM224ADRE4
- Part No.:
- LM224ADRE4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LM224ADRE4.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,703
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Product details
Overview
LM224ADRE4 from Texas Instruments is a quad operational amplifier in SOIC-14 package, designed for cost-sensitive industrial and consumer applications requiring rail-to-rail input capability, 3V–36V supply operation, ±3mV max input offset voltage (25°C), and unity-gain stability. It serves as a precision signal conditioning and amplification stage in power supply feedback loops, sensor interfaces, and analog front-ends.
For engineers reviewing the LM224ADRE4 datasheet, LM224ADRE4 pinout, LM224ADRE4 application, or LM224ADRE4 equivalent, this page delivers verified electrical specs, validated pin functions, real-world use cases in AC inverters and multi-function printers, and two confirmed alternative parts with documented functional and thermal differences.
Technical Context
The LM224ADRE4 implements four independent high-voltage op-amps with common-mode input range extending to V– (ground in single-supply mode) and differential input voltage tolerance up to ±32V. Its internal architecture supports stable operation with capacitive loads ≤100pF and achieves 1.2MHz gain-bandwidth product at 240µA per amplifier quiescent current.
It features integrated EMI/RF filtering, 2kV HBM ESD rating, and operates across –25°C to +85°C ambient temperature-matching the LM224A specification tier. Unlike B/BA versions, it does not include enhanced offset drift (±7µV/°C) or extended temperature grade (–40°C to +125°C).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 3V to 30V - supports wide-input industrial power rails and battery-backed systems without external regulation |
| Input Offset Voltage (max) | ±3mV at 25°C - enables accurate DC-coupled amplification in sensor signal chains with <0.1% error at 1V output |
| Quiescent Current (per amp) | 240µA typical - allows low-power operation in always-on monitoring circuits without thermal derating |
| Gain-Bandwidth Product | 1.2MHz - sufficient for closed-loop gain ≤100 at 10kHz signals in motor control feedback paths |
| Output Swing (from rail) | 1.5V from V+ and 100mV from V– at 50µA load - provides usable dynamic range in single-supply 5V/12V systems |
| Common-Mode Input Range | V– to (V+) – 2V - permits direct interface to ground-referenced transducers and current-sense resistors |
| ESD Rating (HBM) | 500V - meets basic handling requirements for non-automotive assembly lines and lab environments |
Pinout & Package
LM224ADRE4 is housed in a 14-pin SOIC (D package), 8.65mm × 6mm body size, with standard JEDEC outline and gull-wing leads. Thermal resistance RθJA = 99.3°C/W enables operation at full spec up to +85°C ambient with minimal PCB copper.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 5, 6, 11 | NC / VCC+ | Pins 1 and 5 are no-connect; Pin 6 is positive supply input - decoupling capacitor must be placed within 5mm of Pin 6 |
| 2, 9, 13, 19 | Inverting Input (–) | Four independent negative inputs - each accepts differential voltages up to ±32V relative to its non-inverting input |
| 3, 8, 10, 18 | Non-inverting Input (+) | Four independent positive inputs - common-mode range includes V–, enabling true single-supply operation |
| 4, 7, 8, 14 | Output | Four buffered outputs - each drives ≥10kΩ load while maintaining 1.2MHz GBW; short-circuit protected |
| 11 | VCC– | Negative supply or ground reference - must be connected directly to system ground plane for noise immunity |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input common-mode range | Includes V– (ground), eliminating need for level-shifting in single-supply sensor interfaces |
| Unity-gain stable architecture | Enables direct use in voltage followers and active filters without external compensation |
| High ESD robustness (500V HBM) | Reduces field failure risk during manual handling and board-level rework in production |
| Low input bias current (≤50nA) | Minimizes voltage error across high-impedance sources like thermistors and photodiodes |
| Capacitive load drive (100pF) | Supports direct connection to ADC input capacitors or long PCB traces without oscillation |
Applications
| Power Supply Feedback Control | Multi-function Printer Analog Front-end |
|---|---|
Use Scenario: Regulating output voltage in 12V/24V offline AC-DC adapters using optocoupler-isolated feedback loop. IC Role / Device Role / Timing Role: Amplifies error signal between reference and sampled output, driving optocoupler LED with precise gain and bandwidth. Use Value: ±3mV offset ensures <0.025% regulation error at 12V; 1.2MHz GBW supports >100kHz loop bandwidth for fast transient response. | Use Scenario: Conditioning paper jam sensor signals and toner density measurements before digitization. IC Role / Device Role / Timing Role: Acts as programmable-gain amplifier and low-pass filter for piezoelectric and photo-interrupter sensors. Use Value: Rail-to-rail input captures full 0–5V sensor swing; 240µA per amp enables always-on sensing with <1mA total quiescent draw. |
| AC Inverter Motor Control | Desktop PC Motherboard Voltage Monitoring |
Use Scenario: Isolating and scaling phase current feedback in 3-phase IGBT gate driver stages. IC Role / Device Role / Timing Role: Provides isolated current sense amplification with common-mode rejection >65dB at 50Hz. Use Value: 30V max supply withstands bus transients; ±32V differential input handles shunt-based sensing across switching nodes. | Use Scenario: Monitoring +3.3V, +5V, +12V, and Vcore rails on ATX motherboards via resistor-divider networks. IC Role / Device Role / Timing Role: Four-channel comparator-equivalent function using open-loop configuration for threshold detection. Use Value: Four independent amps allow simultaneous rail monitoring; 500V HBM protects against ESD events during field service. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM224DR | No A-grade trimming; ±7mV max offset voltage at 25°C vs. ±3mV for LM224ADRE4 | Acceptable where DC accuracy <0.5% is sufficient (e.g., audio preamp, basic comparators) | Select LM224DR only if cost sensitivity outweighs offset-critical performance in feedback paths |
| LM2902DR | Same pinout but wider temp range (–40°C to +125°C); 500V HBM ESD; ±7mV offset | Suitable for automotive under-hood or industrial outdoor enclosures requiring extended thermal margin | Choose LM2902DR when operating ambient exceeds +85°C or automotive qualification is required |
Compared with LM224DR and LM2902DR, the LM224ADRE4 offers tighter initial offset for precision DC measurement while retaining identical SOIC-14 footprint and supply compatibility-making it optimal for industrial control boards where calibration headroom is constrained.
Availability
LM224ADRE4 is available at Aetrix Electronics and suitable for power supply feedback control, multi-function printer analog front-ends, and desktop PC motherboard voltage monitoring requiring stable component supply across long production lifecycles.
Supply support for LM224ADRE4 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 LM224A series belongs to TI's legacy high-voltage op-amp portfolio, engineered for reliability and consistency in cost-sensitive industrial instrumentation and power management systems.
FAQ
What is the maximum operating temperature for LM224ADRE4?
The LM224ADRE4 is rated for operation from –25°C to +85°C ambient temperature. This range aligns with the LM224A specification tier and is validated per TI's SLOS066AE datasheet Section 6.3. Exceeding +85°C ambient may cause parametric shift in offset voltage and gain accuracy. For designs targeting higher temperatures, consider LM2902DR (–40°C to +125°C) as an alternative part.
Does LM224ADRE4 support single-supply operation?
Yes, LM224ADRE4 supports true single-supply operation due to its common-mode input voltage range extending to V– (ground). When V– is tied to 0V and V+ is set to 5V, 12V, or 24V, all four amplifiers accept input signals from 0V up to (V+) – 2V. Output swing reaches within 100mV of ground and 1.5V of V+, making it suitable for sensor interfacing and level-shifting without dual supplies.
What is the input offset voltage specification for LM224ADRE4?
The LM224ADRE4 has a maximum input offset voltage of ±3mV at 25°C, per TI's LM224A electrical characteristics table (Section 6.9). Over the full operating temperature range (–25°C to +85°C), the offset remains within ±5mV. This A-grade trimming distinguishes it from standard LM224 (±7mV) and supports precision applications such as current-sense amplification and reference buffering.
Can LM224ADRE4 drive capacitive loads?
Yes, LM224ADRE4 is characterized to drive capacitive loads up to 100pF while maintaining stability, as specified in Section 6.5 of the datasheet. This capability allows direct connection to ADC input capacitors, long PCB traces, or RC filters without external isolation resistors. For loads exceeding 100pF, a series resistor (≥100Ω) between output and capacitance is recommended to prevent peaking or oscillation.
Is LM224ADRE4 pin-compatible with LM324 or LM2902?
Yes, LM224ADRE4 is pin-compatible with LM324, LM2902, and all members of the LMx24 family in SOIC-14 (D) package. Pin 1 through 14 follow identical function mapping: four inverting inputs, four non-inverting inputs, four outputs, one VCC+, and one VCC–. However, note that LM224ADRE4 uses the LM224A temperature and offset spec grade (–25°C to +85°C, ±3mV), differing from LM324 (0°C to +70°C) and LM2902 (–40°C to +125°C).
LM224ADRE4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 4
- Output Type:
- -
- Slew Rate:
- 0.5V/µs
- Gain Bandwidth Product:
- 1.2 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 15 nA
- Voltage - Input Offset:
- 2 mV
- Current - Supply:
- 1.4mA (x4 Channels)
- Current - Output / Channel:
- 30 mA
- Voltage - Supply Span (Min):
- 3 V
- Voltage - Supply Span (Max):
- 30 V
- Operating Temperature:
- -25°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SOIC
LM224ADRE4 FAQ
1.How can I place an order for LM224ADRE4 through Aetrix?
Please submit a Request for Quotation (RFQ) for LM224ADRE4 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 LM224ADRE4 reliable?
The price and inventory of LM224ADRE4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM224ADRE4 is usually 5 days.
3.What payment methods are accepted for LM224ADRE4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM224ADRE4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM224ADRE4?
LM224ADRE4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM224ADRE4 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 LM224ADRE4?
For technical support, including LM224ADRE4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM224ADRE4 requirements.
6.How does Aetrix verify that LM224ADRE4 is sourced from the original manufacturer or authorized distributors?
All LM224ADRE4 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 LM224ADRE4 meets industry standards.
7.What is the process for return or replacement of LM224ADRE4?
All LM224ADRE4 units undergo pre-shipment inspection (PSI). If there is an issue with LM224ADRE4, 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 LM224ADRE4 part is unused and in its original packaging.
Return procedure for LM224ADRE4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LM224ADRE4 Tags
-
LM358DT
STMicroelectronics
-
LM358DR
Texas Instruments
-
LM2904DR
Texas Instruments
-
LM358ADR
Texas Instruments
-
LM2904DGKR
Texas Instruments
-
LM324DR
Texas Instruments
-
MCP6006T-E/OT
Microchip Technology
-
MCP6006UT-E/OT
Microchip Technology
-
LM324PWR
Texas Instruments
-
LM2902PWR
Texas Instruments
-
LM2902DR
Texas Instruments
-
LM358P
Texas Instruments
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