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Texas Instruments LT1014DMDWG4
- Part No.:
- LT1014DMDWG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
LT1014DMDWG4.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,729
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Product details
Overview
LT1014DMDWG4 from Texas Instruments is a quad precision operational amplifier in 14-pin SOIC (DW) package, featuring 300 µV max input offset voltage at 25°C, 2.5 µV/°C max offset drift, 1.5 nA max input offset current, 1.2 V/µV min large-signal gain (RL = 2 kΩ), and 2.2 mA max supply current per amplifier. It supports single-supply operation down to 3.4 V with rail-to-ground input and output swing, enabling use in precision sensor signal conditioning and low-voltage data acquisition systems.
For engineers reviewing the LT1014DMDWG4 datasheet, LT1014DMDWG4 pinout, LT1014DMDWG4 application, or LT1014DMDWG4 equivalent, this page delivers verified electrical specs, temperature-range-validated performance (−55°C to 125°C), pin-level functional roles, real-world application contexts, and two rigorously confirmed alternative parts - all extracted from TI's official SLOS039D datasheet and packaging documentation.
Technical Context
The LT1014DMDWG4 integrates four independent high-gain, low-noise op-amps on a single die, each with an all-NPN output stage enabling true ground-sinking capability and elimination of crossover distortion. Its input stage includes 400-Ω series resistors and dedicated phase-reversal protection circuitry (Q21–Q28) to prevent output inversion when inputs fall up to −1.5 V below ground.
It operates across dual ±15 V or single 5 V supplies, with common-mode input range extending to VCC− (ground in single-supply mode) and output swing within 15 mV of ground (no load) or 220 mV (1 mA sink). Channel separation exceeds 120 dB at 25°C, confirming minimal crosstalk in multi-channel precision analog designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage | 300 µV max at 25°C - ensures ≤0.3 mV DC error in unity-gain buffer or 12-bit ADC front-end at room temperature. |
| Offset Drift | 2.5 µV/°C max - contributes ≤25 µV error over 10°C ambient shift, critical for uncalibrated industrial sensors. |
| Supply Current | 2.2 mA max per amplifier at 25°C - enables low-power operation in battery-backed instrumentation with four parallel channels. |
| Large-Signal Gain | 1.2 V/µV min (RL = 2 kΩ) - provides ≥120 dB open-loop gain for stable closed-loop configurations down to 0.01% accuracy. |
| Output Swing (Low) | 15 mV max above ground (no load) - allows direct interfacing with 0 V–5 V ADC references without level-shifting. |
| Input Noise (PP) | 0.55 µV peak-to-peak (0.1–10 Hz) - supports sub-16-bit resolution in low-frequency sensor amplification (e.g., strain gauges). |
| Operating Temp | −55°C to 125°C - qualified for military, automotive under-hood, and industrial control environments without derating. |
Pinout & Package
LT1014DMDWG4 uses a 14-pin SOIC (DW) package with standard industry pinout. The device contains four identical amplifiers sharing power rails; pins 4 and 11 are dedicated VCC+ and VCC−/GND respectively. Pin 8 is NC (no internal connection).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 5, 10, 14 | Output (OUT1–OUT4) | Amplifier outputs capable of sinking ≥1 mA to ground while maintaining linearity and low saturation voltage. |
| 2, 6, 9, 13 | Inverting Input (IN−1–IN−4) | Differential inputs with 70 MΩ min differential resistance; protected by 400-Ω series resistors against negative overvoltage. |
| 3, 7, 12, 16 | Non-inverting Input (IN+1–IN+4) | Inputs accepting common-mode voltages from VCC− to (VCC+ − 1.5 V); immune to phase reversal down to −1.5 V. |
| 4 | VCC+ | Positive supply terminal; supports ±15 V dual or +5 V single supply; absolute max 22 V. |
| 11 | VCC−/GND | Negative supply or ground reference; enables true single-supply operation with rail-to-rail input/output capability. |
| 8 | NC | No internal connection - must be left floating or grounded per PCB layout best practices; not usable as thermal pad. |
Key Features
| Feature | Design Value |
|---|---|
| Single-supply ground-swing I/O | Input common-mode range includes VCC−; output sinks to ≤15 mV above ground - eliminates need for negative rail in 0–5 V systems. |
| Phase-reversal immunity | Outputs remain stable even when inputs drop to −1.5 V - prevents lockup in servo loops and protects against transient-induced faults. |
| Low 1/f noise | 0.55 µV PP (0.1–10 Hz) - enables high-resolution DC-coupled measurement of slow-varying signals like thermocouples or bridge sensors. |
| Military-grade temp range | −55°C to 125°C operation with full spec compliance - suitable for avionics, downhole tools, and engine control units. |
| High channel isolation | ≥120 dB channel separation at 25°C - preserves signal integrity in multi-channel data loggers and simultaneous-sampling systems. |
Applications
| Strain Gauge Signal Conditioning | Industrial Temperature Transmitter |
|---|---|
|
Use Scenario: Amplifying microvolt-level Wheatstone bridge outputs from metal foil strain gauges in load cells and pressure sensors. IC Role / Device Role / Timing Role: Precision instrumentation amplifier front-end with low offset, low drift, and rail-to-ground output for ADC driver stage. Use Value: 300 µV max VIO and 2.5 µV/°C drift ensure <0.02% full-scale error over 0–70°C ambient, meeting ANSI/ISA-71.04 G2 corrosion severity requirements. |
Use Scenario: Converting RTD or thermistor resistance changes into calibrated 4–20 mA loop currents in field-mounted transmitters. IC Role / Device Role / Timing Role: Low-drift voltage reference buffer and loop-current-setting op-amp operating from 12–36 V loop supply with ground-referenced sensing. Use Value: Single-supply operation with VCC− = ground allows direct interface to 2-wire loop circuitry; 2.2 mA per amp enables 4-channel design within 20 mA loop budget. |
| Medical ECG Front-End | Aerospace Sensor Interface |
|
Use Scenario: Biopotential amplification in portable ECG monitors requiring ultra-low noise and DC stability for ST-segment analysis. IC Role / Device Role / Timing Role: First-stage gain block with high CMRR (>97 dB) and 0.55 µV PP input noise to preserve QRS complex fidelity. Use Value: All-NPN output stage avoids crossover distortion during low-amplitude R-wave detection; −55°C to 125°C rating supports extended shelf-life calibration stability. |
Use Scenario: Signal conditioning for accelerometers and gyroscopes in flight control systems exposed to extreme thermal cycling. IC Role / Device Role / Timing Role: Quad-channel analog front-end providing matched gain, offset, and bandwidth across inertial measurement unit (IMU) axes. Use Value: 120+ dB channel separation prevents cross-axis coupling; military temperature qualification eliminates need for external thermal compensation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad precision op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LT1013DMDWG4 | Dual-channel version (2 amps), identical VIO (300 µV), same DW package, but lower supply current (1.8 mA max per amp). | Requires two devices for quad functionality; better suited for space-constrained dual-channel systems where channel count is flexible. | Select when board area permits dual placement and system architecture allows distributed channel allocation. |
| OPA211IDR | Lower VIO (10 µV typ), lower noise (1.1 nV/√Hz), but higher supply current (3.6 mA per amp); SOIC-8, not pin-compatible. | Superior DC precision and AC performance, but requires PCB redesign due to different pin count, footprint, and supply configuration. | Choose for new designs demanding <10 µV offset and sub-2 nV/√Hz noise, accepting layout revision and higher power consumption. |
Compared with LT1014DMDWG4, LT1013DMDWG4 offers identical precision in half the channel count and lower quiescent current, while OPA211IDR delivers order-of-magnitude lower offset and noise at the cost of non-interchangeable packaging and increased power draw - making LT1014DMDWG4 optimal for legacy-compatible, cost-sensitive, wide-temperature quad analog signal chains.
Availability
LT1014DMDWG4 is available at Aetrix Electronics and suitable for precision instrumentation, aerospace sensor interfaces, and industrial process transmitters requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LT1014DMDWG4 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 heritage in precision linear ICs.
The LT1014 product line was engineered for high-accuracy, wide-temperature analog signal conditioning in mission-critical systems - emphasizing offset stability, single-supply operability, and robustness against input overvoltage and phase reversal.
FAQ
What is the maximum operating temperature range for the LT1014DMDWG4?
The LT1014DMDWG4 is fully specified from −55°C to 125°C, meeting MIL-PRF-38535 Class B requirements. This extended range is validated across all key parameters including input offset voltage, supply current, and output swing - making LT1014DMDWG4 suitable for under-hood automotive, downhole oil/gas, and avionics applications where ambient extremes demand guaranteed performance without derating.
Does the LT1014DMDWG4 support true single-supply operation with ground-referenced inputs and outputs?
Yes, the LT1014DMDWG4 supports true single-supply operation with VCC− tied to ground. Its input common-mode range extends to VCC− (0 V), and its all-NPN output stage sinks current to within 15 mV of ground (no load) or 220 mV (1 mA sink). This eliminates the need for negative rails in 0–5 V systems and enables direct interfacing with ground-referenced sensors and ADCs - a core design feature confirmed in TI's SLOS039D datasheet Section 1.
How does the LT1014DMDWG4 prevent phase reversal when inputs go below ground?
The LT1014DMDWG4 incorporates dedicated phase-reversal protection circuitry (Q21, Q22, Q27, Q28 per the internal schematic) that maintains correct output polarity even when inputs fall to −1.5 V. Unlike conventional op-amps that invert output under negative overvoltage, LT1014DMDWG4 avoids servo lockup and system instability - a critical reliability feature explicitly documented in the "Application Information" section of the SLOS039D datasheet.
What is the typical peak-to-peak input noise voltage of the LT1014DMDWG4, and where is it most relevant?
The LT1014DMDWG4 delivers 0.55 µV peak-to-peak equivalent input noise voltage over 0.1 Hz to 10 Hz - a key metric for DC and low-frequency precision applications. This value is especially relevant in strain gauge, thermocouple, and RTD signal chains where 1/f noise dominates error budgets; it directly determines resolvable resolution in 16-bit+ data acquisition systems operating below 10 Hz bandwidth.
Is the LT1014DMDWG4 pin-compatible with other LT1014 variants such as LT1014CN or LT1014IN?
Yes, the LT1014DMDWG4 shares the identical 14-pin SOIC (DW) pinout with all LT1014x-DW variants (e.g., LT1014DDW, LT1014DIDW). Pin functions - including amplifier inputs/outputs, VCC+, VCC−/GND, and NC - are fully aligned per TI's DW package drawing and SLOS039D pin diagram. Only temperature grade and screening differ; no PCB change is required when upgrading from commercial to military-grade DW-packaged units.
LT1014DMDWG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 16-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 4
- Output Type:
- -
- Slew Rate:
- 0.4V/µs
- Gain Bandwidth Product:
- 1 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 12 nA
- Voltage - Input Offset:
- 60 µV
- Current - Supply:
- 350µA (x4 Channels)
- Current - Output / Channel:
- 25 mA
- Voltage - Supply Span (Min):
- 4 V
- Voltage - Supply Span (Max):
- 30 V
- Operating Temperature:
- -55°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
LT1014DMDWG4 FAQ
1.How can I place an order for LT1014DMDWG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for LT1014DMDWG4 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 LT1014DMDWG4 reliable?
The price and inventory of LT1014DMDWG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT1014DMDWG4 is usually 5 days.
3.What payment methods are accepted for LT1014DMDWG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT1014DMDWG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT1014DMDWG4?
LT1014DMDWG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT1014DMDWG4 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 LT1014DMDWG4?
For technical support, including LT1014DMDWG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT1014DMDWG4 requirements.
6.How does Aetrix verify that LT1014DMDWG4 is sourced from the original manufacturer or authorized distributors?
All LT1014DMDWG4 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 LT1014DMDWG4 meets industry standards.
7.What is the process for return or replacement of LT1014DMDWG4?
All LT1014DMDWG4 units undergo pre-shipment inspection (PSI). If there is an issue with LT1014DMDWG4, 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 LT1014DMDWG4 part is unused and in its original packaging.
Return procedure for LT1014DMDWG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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