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Texas Instruments LT1014DMDWREP
- Part No.:
- LT1014DMDWREP
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
LT1014DMDWREP.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,856
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Product details
Overview
LT1014DMDWREP from Texas Instruments is a quad precision operational amplifier in 16-pin SOIC (DW) package, featuring 300 µV max input offset voltage at 25°C, 2.5 µV/°C max offset drift, 1.2 V/µV min open-loop gain (RL = 2 kΩ), 0.55 µV peak-to-peak input noise (0.1–10 Hz), and rail-to-rail output swing to ground under sink current-enabling high-accuracy signal conditioning in aerospace-grade analog front-ends.
For engineers reviewing the LT1014DMDWREP datasheet, LT1014DMDWREP pinout, LT1014DMDWREP application, or LT1014DMDWREP equivalent, this page delivers verified specifications, military-temperature (-55°C to 125°C) performance data, single-supply operation down to 3.4 V, phase-reversal immunity for robust sensor interfacing, and precise low-noise amplification for medical instrumentation and defense-grade data acquisition systems.
Technical Context
The LT1014DMDWREP implements an all-NPN output stage enabling true ground-swing capability while sinking ≥1 mA, and integrates dedicated phase-reversal protection circuitry (Q21/Q22/Q27/Q28) that prevents output inversion when inputs fall to –1.5 V-critical for fault-tolerant transducer interfaces. Its input stage uses 400-Ω series resistors to limit substrate current during negative transients.
It supports dual ±15 V and single 5 V supply operation with common-mode input range extending to VCC− (ground), and maintains 120 dB CMRR up to 100 Hz. The device is characterized across –55°C to 125°C with controlled baseline, extended product life cycle, and full traceability per MIL-PRF-38535 requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage | 300 µV max at 25°C - enables ≤0.03% gain error in 10 V full-scale precision measurement circuits |
| Offset Drift | 2.5 µV/°C max - ensures <15 µV total drift over –55°C to 125°C operating range |
| Open-Loop Gain | 1.2 V/µV min (RL = 2 kΩ) - provides >120 dB loop gain for stable closed-loop configurations at unity gain |
| Input Noise (0.1–10 Hz) | 0.55 µV p-p - supports sub-16-bit resolution in low-frequency sensor signal chains without external filtering |
| Supply Current | 2.2 mA max per amplifier at 25°C - allows four-channel precision amplification within 8.8 mA total budget |
| Output Swing to Ground | ≤25 mV at ISINK = 1 mA - permits direct interface with 0 V–5 V ADC references and digital logic thresholds |
| Operating Temperature | –55°C to 125°C - qualified for embedded avionics, missile guidance, and downhole oilfield electronics |
Pinout & Package
LT1014DMDWREP is housed in a 16-pin SOIC (DW) package, 7.5 mm × 10.3 mm body, 1.27 mm pitch, 2.65 mm max height, RoHS-compliant NiPdAu lead finish, MSL Level-1 (260°C, unlimited floor life).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 5, 9, 13 | Output (OUT1–OUT4) | Amplifier outputs capable of sinking ≥1 mA to ground with <25 mV saturation voltage |
| 2, 6, 10, 14 | Inverting Input (IN1−–IN4−) | Differential inputs with 1.5 nA max offset current and protected against –5 V transients |
| 3, 7, 11, 15 | Non-inverting Input (IN1+–IN4+) | Inputs referenced to VCC−; common-mode range includes ground; phase-reversal immune to –1.5 V |
| 4 | VCC+ | Positive supply terminal; supports 3.4 V to ±22 V operation (±15 V typical) |
| 16 | VCC− / GND | Negative supply or ground reference; enables true single-supply operation with rail-to-rail output |
| 8, 12 | No Connect (NC) | Internally unconnected pins; must remain floating per TI design guidelines |
Key Features
| Feature | Design Value |
|---|---|
| Phase-reversal immunity | Guaranteed non-inverting output behavior even when inputs drop to –1.5 V, preventing servo lockup in feedback loops |
| Ground-swing output stage | All-NPN topology delivers <25 mV saturation voltage at 1 mA sink current, enabling direct interface with 0 V–5 V ADCs |
| Low 1/f noise corner | 2 Hz corner frequency ensures minimal low-frequency drift in precision DC-coupled sensor amplifiers |
| Military temperature qualification | Full electrical test and screening across –55°C to 125°C per MIL-PRF-38535, including extended product lifecycle support |
| Transient input protection | Integrated 400-Ω series resistors limit substrate current during –5 V input excursions, eliminating destructive latch-up |
Applications
| Aerospace Sensor Signal Conditioning | Medical ECG Front-End Amplification |
|---|---|
Use Scenario: Amplifying low-amplitude, high-impedance signals from strain gauges and accelerometers in flight control systems. IC Role / Device Role / Timing Role: Quad-channel precision op-amp providing differential gain, offset trimming, and buffer stages before ADC sampling. Use Value: 0.55 µV p-p noise and 2.5 µV/°C drift ensure stable microvolt-level measurements across extreme thermal cycling in avionics bays. |
Use Scenario: Biopotential amplification in portable ECG monitors requiring DC-coupled, low-drift, and low-noise performance. IC Role / Device Role / Timing Role: Instrumentation amplifier core (using two LT1014DMDWREP sections) with programmable gain and high CMRR. Use Value: Input bias current ≤1.5 nA minimizes electrode polarization errors; ground-swing output directly drives 12-bit SAR ADCs. |
| Defense-Grade Data Acquisition | Industrial Process Current Loop Transmitters |
Use Scenario: High-reliability analog input modules in ruggedized field-deployable test equipment for radar and comms subsystems. IC Role / Device Role / Timing Role: Precision buffer and anti-aliasing filter driver for multiplexed 16-bit ADC channels. Use Value: Guaranteed operation at 125°C and –55°C enables uninterrupted function in uncooled military enclosures exposed to desert or arctic environments. |
Use Scenario: 4–20 mA transmitter circuitry converting sensor voltage outputs into industrial-standard current loops. IC Role / Device Role / Timing Role: Output stage amplifier and current-sense comparator in fully floating 4–20 mA loop designs (e.g., Figure 32). Use Value: Single-supply compatibility (3.4 V min) and rail-to-ground output allow operation from low-voltage battery or energy-harvesting sources. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad precision operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OP4177ARUZ | Lower offset (60 µV typ), lower noise (7.9 nV/√Hz), but no phase-reversal immunity and only rated to 105°C | Better for high-bandwidth, low-noise lab instrumentation; unsuitable for fault-prone sensor inputs below ground | Select OP4177ARUZ when ultra-low offset and wide bandwidth (>1.3 MHz) outweigh military temp and phase-reversal needs |
| LM148J | Higher offset (2 mV max), higher drift (10 µV/°C), no ground-swing output, but same military temp range and TO-99 metal can | Legacy replacement where mechanical ruggedness matters more than DC precision or single-supply operation | Select LM148J only for backward-compatible upgrades in existing TO-99-based avionics hardware |
Compared with OP4177ARUZ and LM148J, the LT1014DMDWREP uniquely combines military-temperature operation, guaranteed phase-reversal immunity, and true ground-swing output-making it irreplaceable in new-design aerospace sensor interfaces where transient robustness and DC accuracy are co-constrained.
Availability
LT1014DMDWREP is available at Aetrix Electronics and suitable for aerospace sensor conditioning, medical ECG front-ends, and defense-grade data acquisition requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LT1014DMDWREP 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 high-reliability analog ICs for mission-critical systems.
The LT1014DMDWREP belongs to TI's precision op-amp product line, engineered specifically for defense, aerospace, and medical applications demanding guaranteed performance across extreme temperatures, low noise, and fault-tolerant input/output behavior.
FAQ
What is the minimum supply voltage for reliable operation of the LT1014DMDWREP?
The LT1014DMDWREP operates reliably down to 3.4 V on a single supply (VCC+ = 3.4 V, VCC− = 0 V), as confirmed in the Electrical Characteristics table and Application Information section. At this voltage, typical supply current is 290 µA per amplifier, enabling ultra-low-power precision sensing in battery-powered defense and medical devices. The LT1014DMDWREP maintains specified offset, gain, and noise performance across this full supply range.
Does the LT1014DMDWREP support true single-supply operation with input and output referenced to ground?
Yes, the LT1014DMDWREP fully supports true single-supply operation: its common-mode input voltage range extends to VCC− (ground), and its all-NPN output stage swings to within 25 mV of ground while sinking 1 mA. This capability is explicitly validated in the datasheet's "Single-Supply Operation" section and Figure 25, making the LT1014DMDWREP suitable for ground-referenced sensor interfaces without level-shifting circuitry.
How does the phase-reversal protection in the LT1014DMDWREP work, and under what conditions does it remain active?
The LT1014DMDWREP incorporates dedicated phase-reversal protection circuitry (Q21, Q22, Q27, Q28) that prevents output inversion when inputs fall to –1.5 V-even during transient undershoots. This protection remains active unless another amplifier in the same LT1014DMDWREP package is driven into negative output saturation. As stated in the Application Information section, protection is disabled only when the output of the *same* amplifier or an adjacent one is saturated negatively-ensuring robustness in multi-channel feedback systems.
What is the guaranteed maximum input offset voltage for the LT1014DMDWREP across its full operating temperature range?
The LT1014DMDWREP guarantees a maximum input offset voltage of 1500 µV over the full –55°C to 125°C operating temperature range, as specified in the Electrical Characteristics table under "Full range" conditions. At 25°C, the limit is tighter: 400 µV max. This wide-temperature specification enables predictable calibration and drift compensation in systems deployed in harsh environmental conditions without requiring active nulling circuitry.
Is the LT1014DMDWREP pin-compatible with standard industry quad op-amps such as the LM324 or OP4177?
No, the LT1014DMDWREP is not pin-compatible with LM324 or OP4177. It uses a 16-pin SOIC (DW) package with NC pins at positions 8 and 12, whereas LM324 uses 14-pin SOIC and OP4177 uses 16-pin TSSOP or SOIC with different pin assignments. The LT1014DMDWREP pinout is defined in the DW package drawing and top-view schematic on page 1 of the datasheet-engineers must follow this layout strictly to avoid misconnection in PCB design.
LT1014DMDWREP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 16-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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:
- 15 nA
- Voltage - Input Offset:
- 90 µV
- Current - Supply:
- 300µA (x4 Channels)
- Current - Output / Channel:
- 25 mA
- Voltage - Supply Span (Min):
- 4 V
- Voltage - Supply Span (Max):
- 44 V
- Operating Temperature:
- -55°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
LT1014DMDWREP FAQ
1.How can I place an order for LT1014DMDWREP through Aetrix?
Please submit a Request for Quotation (RFQ) for LT1014DMDWREP 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 LT1014DMDWREP reliable?
The price and inventory of LT1014DMDWREP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT1014DMDWREP is usually 5 days.
3.What payment methods are accepted for LT1014DMDWREP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT1014DMDWREP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT1014DMDWREP?
LT1014DMDWREP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT1014DMDWREP 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 LT1014DMDWREP?
For technical support, including LT1014DMDWREP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT1014DMDWREP requirements.
6.How does Aetrix verify that LT1014DMDWREP is sourced from the original manufacturer or authorized distributors?
All LT1014DMDWREP 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 LT1014DMDWREP meets industry standards.
7.What is the process for return or replacement of LT1014DMDWREP?
All LT1014DMDWREP units undergo pre-shipment inspection (PSI). If there is an issue with LT1014DMDWREP, 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 LT1014DMDWREP part is unused and in its original packaging.
Return procedure for LT1014DMDWREP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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