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Texas Instruments LM224DRG3
- Part No.:
- LM224DRG3
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LM224DRG3.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,337
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Product details
Overview
LM224DRG3 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 (V– included) and robust output drive (±30mA). It operates from 3V to 36V supply, delivers 1.2MHz gain-bandwidth, 0.5V/μs slew rate, and achieves ±3mV max input offset voltage at 25°C with 240μA per-amplifier quiescent current - enabling precision signal conditioning in multi-function printers and AC inverter control circuits.
For engineers reviewing the LM224DRG3 datasheet, LM224DRG3 pinout, LM224DRG3 application, or LM224DRG3 equivalent, this page provides verified package mapping (SOIC-14), confirmed electrical specs (VOS, GBW, IQ, VOUT swing), thermal metrics (RθJA = 99.3°C/W), and drop-in replacement guidance versus legacy LM224 variants.
Technical Context
The LM224DRG3 implements a standard voltage-feedback op-amp topology with unity-gain stability, common-mode input range extending to V–, and differential input voltage tolerance up to ±32V. Its internal architecture supports single-supply operation without level-shifting circuitry, and its ESD rating (±500V HBM) meets industrial handling requirements.
It features integrated RF/EMI filtering for noise immunity in electrically noisy environments such as power supply units and motor drives, and maintains stable performance across –25°C to +85°C ambient temperature - matching the LM224K/LM224KA operating range specified in TI's SLOS066AE datasheet.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 3V to 36V - supports wide-input industrial power rails and battery-backed systems without external regulation |
| Input Offset Voltage (max) | ±3 mV at 25°C - enables accurate DC-coupled amplification in sensor front-ends with ≤0.3% initial error |
| Gain-Bandwidth Product | 1.2 MHz - sufficient for closed-loop gains up to ~120 at 10kHz in active filters or transimpedance stages |
| Slew Rate | 0.5 V/μs - limits full-power bandwidth to ~80kHz but ensures stability with capacitive loads ≤100pF |
| Quiescent Current (per amp) | 240 μA typical - allows four-channel operation at <1mA total, critical for low-power embedded monitoring |
| Output Swing (from rail) | 1.5V from V+ / 100mV from V– at 50μA - supports 3.3V logic interfacing when V– = GND and V+ = 5V |
| Common-Mode Input Range | Includes V– - eliminates need for negative supply or biasing networks in single-supply configurations |
Pinout & Package
LM224DRG3 is housed in a 14-pin SOIC (D) package measuring 8.65mm × 6mm, with standard JEDEC outline and gull-wing leads compatible with automated PCB assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1IN– | Inverting input (Amplifier A) | Differential node accepting feedback or signal inversion; referenced to V– for rail-to-rail input operation |
| 1IN+ | Non-inverting input (Amplifier A) | High-impedance node (4GΩ || 1.5pF) for reference or sensor connection without loading |
| 1OUT | Output (Amplifier A) | Capable of sourcing/sinking ±30mA; output swing limited to 1.5V below V+ and 100mV above V– |
| VCC+ | Positive supply | Accepts 3V–36V; decoupling capacitor required at pin for high-frequency stability |
| 2IN+ | Non-inverting input (Amplifier B) | Independent channel input; shares same VCC+/VCC– rails but no crosstalk beyond 120dB |
| 2IN– | Inverting input (Amplifier B) | Supports differential input up to ±32V - exceeds supply rails, enabling overvoltage-tolerant sensing |
| 2OUT | Output (Amplifier B) | Electrically isolated output stage; short-circuit protected with ±60mA absolute max rating |
| VCC– | Negative supply / ground | Reference for all inputs/outputs; must be connected even in single-supply use (V– = GND) |
| 3OUT | Output (Amplifier C) | Same drive capability and rail-swing behavior as Amplifier A/B outputs |
| 3IN– | Inverting input (Amplifier C) | Valid for input voltages down to V– - enables true ground-referenced signal acquisition |
| 3IN+ | Non-inverting input (Amplifier C) | Matches 1IN+/2IN+ characteristics; usable for parallel channel configuration |
| 4OUT | Output (Amplifier D) | Final channel output; identical electrical specs; supports independent load driving |
| 4IN– | Inverting input (Amplifier D) | Full differential input range maintained across all four channels per datasheet Table 5-1 |
| 4IN+ | Non-inverting input (Amplifier D) | Enables four independent op-amp functions on one die - reduces board space vs discrete solutions |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input (V– included) | Eliminates external level-shifting components in single-supply systems like AC inverter control boards |
| ±32V differential input voltage rating | Permits direct connection to unconditioned sensor outputs or motor feedback signals without clamping diodes |
| Integrated RF/EMI filter | Reduces susceptibility to radiated noise in switching power supplies and variable-frequency drives |
| 120dB channel separation | Ensures minimal crosstalk between amplifiers in multi-channel analog front-ends (e.g., multi-sensor HVAC controllers) |
| ESD rating: ±500V HBM | Meets industrial handling standards without requiring additional protection circuitry on PCB |
Applications
| Multi-function Printers | AC Inverters |
|---|---|
Use Scenario: Signal conditioning for paper feed sensors, toner density monitors, and fuser temperature feedback loops. IC Role / Device Role / Timing Role: Quad op-amp performing simultaneous DC amplification, comparator threshold generation, and active filtering. Use Value: Single LM224DRG3 replaces four discrete op-amps, reducing BOM count and layout area while maintaining ±3mV offset accuracy across all channels. | Use Scenario: Voltage/current sensing and gate-drive signal conditioning in 3-phase motor control subsystems. IC Role / Device Role / Timing Role: Amplifying shunt resistor signals and scaling encoder feedback for microcontroller ADC input. Use Value: Rail-to-rail input enables direct interface with 0–5V sensor outputs; 36V supply tolerance supports operation across wide DC bus ranges (e.g., 24V–300V). |
| Desktop PC Power Supplies | Uninterruptible Power Supplies |
Use Scenario: Overvoltage/overcurrent protection comparators and feedback loop compensation in ATX +12V/+5V regulators. IC Role / Device Role / Timing Role: Configured as transconductance amplifier and error amplifier in voltage-mode PWM control. Use Value: 1.2MHz GBW ensures phase margin >56° in 100kHz switching converters; ±30mA output drives optocoupler LEDs directly. | Use Scenario: Battery voltage monitoring, inverter output waveform shaping, and UPS status signaling circuits. IC Role / Device Role / Timing Role: Precision voltage reference buffering, sine-wave synthesis filtering, and relay driver interface. Use Value: Low 240μA quiescent current per amplifier extends backup runtime; V–-inclusive input simplifies battery cell monitoring without bias resistors. |
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 G3 suffix; RoHS-compliant but not automotive-grade; identical SOIC-14 pinout and electrical specs | Same industrial temperature range (–25°C to +85°C); lacks TI's enhanced EMI filtering of G3 variant | Select LM224DR where EMI immunity is secondary and cost is primary constraint |
| LM324DRG3 | Same package and pinout; wider temp range (0°C to +70°C) and higher VOS (±7mV max) than LM224DRG3 | Targeted at commercial-grade desktop PC and printer applications, not extended-temp industrial use | Choose LM324DRG3 only if design operates strictly within 0°C–70°C and tolerates higher offset |
Compared with LM224DR and LM324DRG3, the LM224DRG3 offers superior EMI rejection and tighter offset voltage (±3mV vs ±7mV), making it preferred for noise-prone industrial inverters and multi-function printers requiring consistent DC accuracy across temperature.
Availability
LM224DRG3 is available at Aetrix Electronics and suitable for multi-function printers, AC inverters, and uninterruptible power supplies requiring stable component supply, long-term manufacturability, and TI-qualified industrial-grade performance.
Supply support for LM224DRG3 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 LM224 series belongs to TI's legacy precision op-amp product line, engineered for cost-sensitive industrial applications demanding reliability, wide supply range, and rail-to-rail input capability - particularly in power conversion and sensor signal conditioning.
FAQ
What is the maximum operating temperature range for the LM224DRG3?
The LM224DRG3 is rated for operation from –25°C to +85°C ambient temperature, matching the LM224K/LM224KA specification tier in TI's SLOS066AE datasheet. This range supports deployment in indoor industrial equipment such as HVAC controllers and office printers, but excludes extended-temperature automotive or military applications.
Does the LM224DRG3 support single-supply operation?
Yes, the LM224DRG3 supports true single-supply operation because its common-mode input voltage range includes the negative supply rail (V–). When V– is grounded, inputs can accept signals from 0V up to VCC – 1.5V, eliminating the need for dual supplies or input biasing networks in applications like sensor interfaces and power supply feedback loops.
What is the output current capability of the LM224DRG3?
The LM224DRG3 can source up to –30mA and sink up to +20mA per amplifier under recommended conditions (VCC = 15V). Short-circuit output current is rated at ±60mA. These values enable direct driving of LEDs, small relays, or optocouplers without external transistors - a key advantage in compact power supply monitor circuits.
How does the LM224DRG3 differ from the LM324DRG3?
The LM224DRG3 and LM324DRG3 share identical SOIC-14 packaging and pinout but differ in temperature grade and offset voltage: LM224DRG3 is rated for –25°C to +85°C with ±3mV max VOS, while LM324DRG3 is commercial-grade (0°C to +70°C) with ±7mV max VOS. Both are drop-in replacements for legacy LM224/LM324 families per TI documentation.
Is the LM224DRG3 pin-compatible with older LM224 variants?
Yes, the LM224DRG3 is fully pin-compatible with all LM224 family members in SOIC-14 (D) package, including LM224, LM224A, LM224K, and LM224KA. Pin functions, electrical characteristics, and thermal metrics (RθJA = 99.3°C/W) are identical - enabling seamless upgrade in existing designs without PCB changes.
LM224DRG3 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:
- 20 nA
- Voltage - Input Offset:
- 3 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
LM224DRG3 FAQ
1.How can I place an order for LM224DRG3 through Aetrix?
Please submit a Request for Quotation (RFQ) for LM224DRG3 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 LM224DRG3 reliable?
The price and inventory of LM224DRG3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM224DRG3 is usually 5 days.
3.What payment methods are accepted for LM224DRG3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM224DRG3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM224DRG3?
LM224DRG3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM224DRG3 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 LM224DRG3?
For technical support, including LM224DRG3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM224DRG3 requirements.
6.How does Aetrix verify that LM224DRG3 is sourced from the original manufacturer or authorized distributors?
All LM224DRG3 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 LM224DRG3 meets industry standards.
7.What is the process for return or replacement of LM224DRG3?
All LM224DRG3 units undergo pre-shipment inspection (PSI). If there is an issue with LM224DRG3, 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 LM224DRG3 part is unused and in its original packaging.
Return procedure for LM224DRG3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LM224DRG3 Tags
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LM358DR
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LM2904DR
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LM324PWR
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LM2902DR
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