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Texas Instruments LM747 MWC
- Part No.:
- LM747 MWC
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- Die
- Datasheet:
-
LM747 MWC.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT WAFER
- Quantity:
- Payment:
- Shipping:
Inventory:2,882
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Product details
Overview
LM747 MWC from Texas Instruments is a dual general-purpose operational amplifier with independent amplifier sections sharing common bias and supply leads. It features no frequency compensation required, short-circuit protection, wide common-mode and differential input voltage ranges (±12 V at ±20 V supply), and operates across –55°C to +125°C for the LM747 variant. It is used in precision analog signal conditioning, active filtering, and transducer interface circuits.
For engineers reviewing the LM747 MWC datasheet, LM747 MWC pinout, LM747 MWC application, or LM747 MWC equivalent, key selection considerations include guaranteed DC performance over temperature, absence of latch-up under input overvoltage, indefinite output short-circuit tolerance, and compatibility with ±5 V to ±20 V dual supplies in industrial and test equipment designs.
Technical Context
The LM747 MWC implements two fully independent high-input-impedance op-amp cores sharing only bias circuitry and power rails. Its internal architecture avoids frequency compensation networks, enabling stable unity-gain operation without external components. Input stage design ensures no latch-up when common-mode voltage exceeds supply rails.
It delivers 0.437 MHz small-signal bandwidth and 0.3 V/µs slew rate at unity gain, with typical input offset voltage of 1.0–6.0 mV and input bias current of 30–80 nA at 25°C. Output swing reaches ±15 V into 2 kΩ with ±20 V supplies, supporting rail-to-rail compatible signal handling in legacy analog systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | ±5 V to ±20 V - supports wide-range bipolar analog systems including legacy test gear and industrial control interfaces |
| Input Offset Voltage (25°C) | 1.0–6.0 mV - enables DC-coupled amplification with sub-mV error in sensor front-ends |
| Small-Signal Bandwidth | 0.437 MHz - sufficient for audio-band and low-speed data acquisition signal paths |
| Slew Rate | 0.3 V/µs - limits full-power bandwidth to ~48 kHz at 10 Vpp, suitable for non-high-fidelity analog processing |
| Input Bias Current | 30–80 nA - allows use with high-impedance sources (e.g., piezoelectric sensors, photodiode TIA feedback) |
| Common-Mode Rejection | 70–95 dB - maintains accuracy in noisy industrial environments with ground offsets |
| Output Short-Circuit Duration | Indefinite - permits robust operation in fault-prone signal routing or relay driver applications |
Pinout & Package
LM747 MWC is supplied as a wafer sale (WAFERSALE) product - no finished package or leaded form factor. It is not delivered in metal can (H10C) or DIP (N14A) configurations. Pinout information is not applicable for this bare-die orderable variant.
Key Features
| Feature | Design Value |
|---|---|
| No frequency compensation required | Enables stable unity-gain operation without external capacitors - simplifies PCB layout and reduces BOM count |
| Wide input common-mode range | ±12 V at ±20 V supply - accepts inputs beyond rails, eliminating need for level-shifting in many transducer interfaces |
| No latch-up under overvoltage | Prevents catastrophic failure when input exceeds supply - critical for ruggedized instrumentation and field-deployed systems |
| Short-circuit protected outputs | Withstands indefinite output shorts - enhances reliability in multiplexer-switched or shared-bus analog subsystems |
| Balanced offset null capability | Supports precision trimming via external potentiometer - enables <1 mV residual offset in calibrated measurement channels |
Applications
| Industrial Sensor Signal Conditioning | Legacy Test Equipment Amplifier Stages |
|---|---|
Use Scenario: Amplifying low-level outputs from strain gauges, RTDs, or thermocouples in PLC analog input modules. IC Role / Device Role / Timing Role: Dual-channel DC-coupled instrumentation amplifier front-end with independent gain and offset adjustment per channel. Use Value: Input offset drift ≤15 µV/°C and CMRR ≥70 dB ensure stable 12-bit-equivalent accuracy across –40°C to +85°C operating range. |
Use Scenario: Replacing aging op-amps in oscilloscope vertical deflection amplifiers and function generator output buffers. IC Role / Device Role / Timing Role: High-reliability dual op-amp providing stable gain, low distortion, and rail-compatible output swing in repair and refurbishment programs. Use Value: Indefinite short-circuit tolerance and no latch-up behavior extend service life in high-utilization lab equipment. |
| Active Filter Building Blocks | Analog Multiplexer Driver Circuits |
Use Scenario: Implementing 2nd-order low-pass and band-pass filters in spectrum analyzers and audio analyzers. IC Role / Device Role / Timing Role: Unity-gain-stable dual op-amp configured as Sallen-Key or state-variable filter sections. Use Value: Guaranteed stability without compensation capacitors reduces component count and improves thermal drift performance. |
Use Scenario: Driving analog multiplexer outputs in data acquisition systems where channel switching induces transient loading. IC Role / Device Role / Timing Role: Buffered output stage isolating mux output from downstream ADC input capacitance and noise coupling. Use Value: Low output impedance (<100 Ω) and ±15 V swing into 2 kΩ maintain signal fidelity during fast channel transitions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM358DR | Single-supply rated (3–32 V), lower bandwidth (1 MHz), higher input offset (2–7 mV), no offset null pins | Optimized for 5 V/3.3 V single-rail systems; lacks dual independent offset trim and bipolar supply headroom | Select when cost-sensitive, single-rail, or space-constrained designs prioritize integration over precision trimming |
| TL072CP | JFET-input (50 pA bias), higher slew rate (13 V/µs), wider bandwidth (3 MHz), no short-circuit protection | Better for high-Z source amplification and audio-frequency applications; unsuitable for fault-tolerant industrial outputs | Choose for low-noise, high-speed AC-coupled stages where indefinite short-circuit survival is not required |
Compared with LM747 MWC, LM358DR offers lower system cost and single-supply convenience but sacrifices bipolar rail flexibility and offset adjustability; TL072CP delivers superior speed and input impedance yet lacks short-circuit hardening and temperature range coverage for harsh environments.
Availability
LM747 MWC is available at Aetrix Electronics and suitable for industrial sensor signal conditioning, legacy test equipment repair, active filter design, and analog multiplexer driver applications requiring stable component supply across extended temperature and long-lifecycle programs.
Supply support for LM747 MWC 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, embedded processing, and logic solutions with emphasis on reliability, longevity, and industrial-grade specifications.
The LM747 MWC belongs to TI's legacy bipolar op-amp product line, designed for robust analog signal processing in industrial automation, test and measurement, and repair/replacement contexts where proven performance and long-term availability matter.
FAQ
What is the operating temperature range specified for LM747 MWC?
The LM747 MWC is characterized for operation from –40°C to +85°C, aligning with its status as an active production wafer-sale variant under TI's standard industrial temperature grade. This range is confirmed in TI's official packaging addendum and supersedes older military-grade LM747A specifications (–55°C to +125°C) that do not apply to the MWC suffix.
Does LM747 MWC include offset null pins, and how are they implemented?
Yes, LM747 MWC retains the standard LM747 dual-op-amp pinout structure with dedicated offset null pins: Pin 1 and Pin 5 for Amplifier A, and Pin 10 and Pin 12 for Amplifier B. A 10 kΩ potentiometer is connected between these pins, with wiper grounded, enabling precise DC offset correction per amplifier - a feature preserved even in wafer-sale form for die-level integration.
Is LM747 MWC pin-compatible with through-hole DIP or metal-can packaged versions of LM747?
No - LM747 MWC is a wafer-sale (WAFERSALE) product with no predefined package or lead frame. It does not map to the N14A DIP or H10C metal-can footprints. Users must implement custom die attachment and interconnect; it is not a drop-in replacement for LM747CN, LM747EN, or LM747H in assembled board contexts.
What is the maximum supply voltage rating for LM747 MWC?
The LM747 MWC supports a maximum supply voltage of ±20 V (40 V total), consistent with the LM747/LM747A specification. Absolute maximum ratings remain unchanged from the original bipolar process design, and operation above ±20 V risks permanent device damage regardless of package form.
Why does LM747 MWC have no listed RoHS status or MSL rating in TI's documentation?
Because LM747 MWC is a wafer-sale item (WAFERSALE), TI does not assign RoHS compliance status or moisture sensitivity level (MSL) ratings to bare die. These attributes apply only after packaging. Customers integrating LM747 MWC must perform their own qualification based on final assembly process, encapsulation material, and reflow profile.
LM747 MWC Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- Die
- Packaging:
- Bulk
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- -
- Slew Rate:
- 0.5V/µs
- Gain Bandwidth Product:
- 1.5 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 80 nA
- Voltage - Input Offset:
- 1 mV
- Current - Supply:
- 1.7mA (x2 Channels)
- Current - Output / Channel:
- 25 mA
- Voltage - Supply Span (Min):
- 10 V
- Voltage - Supply Span (Max):
- 44 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- Wafer
LM747 MWC FAQ
1.How can I place an order for LM747 MWC through Aetrix?
Please submit a Request for Quotation (RFQ) for LM747 MWC 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 LM747 MWC reliable?
The price and inventory of LM747 MWC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM747 MWC is usually 5 days.
3.What payment methods are accepted for LM747 MWC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM747 MWC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM747 MWC?
LM747 MWC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM747 MWC 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 LM747 MWC?
For technical support, including LM747 MWC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM747 MWC requirements.
6.How does Aetrix verify that LM747 MWC is sourced from the original manufacturer or authorized distributors?
All LM747 MWC 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 LM747 MWC meets industry standards.
7.What is the process for return or replacement of LM747 MWC?
All LM747 MWC units undergo pre-shipment inspection (PSI). If there is an issue with LM747 MWC, 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 LM747 MWC part is unused and in its original packaging.
Return procedure for LM747 MWC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LM747 MWC Tags
-
LM358DT
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LM358DR
Texas Instruments
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LM2904DR
Texas Instruments
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LM358ADR
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LM2904DGKR
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LM324DR
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MCP6006T-E/OT
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MCP6006UT-E/OT
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LM324PWR
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LM2902PWR
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LM2902DR
Texas Instruments
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LM358P
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