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Texas Instruments LT1014DIN
- Part No.:
- LT1014DIN
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-DIP (0.300", 7.62mm)
- Datasheet:
-
LT1014DIN.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14DIP
- Quantity:
- Payment:
- Shipping:
Inventory:422
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Product details
Overview
LT1014DIN from Texas Instruments is a quad precision operational amplifier in 14-pin plastic DIP (N) package, rated for −40°C to 105°C operation. It delivers 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 - enabling high-accuracy signal conditioning in industrial sensor interfaces and precision instrumentation.
For engineers reviewing the LT1014DIN datasheet, LT1014DIN pinout, LT1014DIN application, or LT1014DIN equivalent, this page provides verified electrical specifications, validated pin functions, temperature-range-specific performance data, single- and dual-supply operating guidance, and real-world design context for analog front-end selection.
Technical Context
The LT1014DIN integrates four independent precision op-amps with all-NPN output stages enabling true rail-to-rail output swing to ground while sinking current, and built-in phase-reversal protection that prevents output inversion when inputs dip to −1.5 V - critical for robust single-supply transducer interfacing. Its input stage includes 400-Ω series resistors to limit substrate current during negative input excursions.
It supports both ±15-V dual supplies and +5-V/0-V single supplies, with common-mode input range extending to VCC− (ground in single-supply mode) and output capable of swinging within 5 mV of ground under 1-mA sink load. Channel separation exceeds 120 dB at 25°C, minimizing crosstalk in multi-channel measurement systems.
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 low-gain signal paths |
| Offset Tempco | 2.5 µV/°C max - contributes ≤0.25 mV drift over 100°C industrial temperature span |
| Supply Current | 2.2 mA max per amplifier at 25°C - enables low-power precision operation in battery-backed systems |
| Large-Signal Gain | 1.2 V/µV min (RL = 2 kΩ) - supports stable closed-loop gain ≥10⁶ with minimal loop gain degradation |
| Output Swing to Ground | ≤13 mV low-level output with 600 Ω load - allows direct interface to 0–5 V ADC references without level-shifting |
| Input Noise (0.1–10 Hz) | 0.55 µV p-p - suitable for sub-µV resolution DC-coupled sensor amplification (e.g., strain gauges, thermopiles) |
| Common-Mode Range | Includes ground (0 V) in single-supply mode - eliminates need for input biasing networks in grounded-sensor applications |
Pinout & Package
LT1014DIN uses a 14-pin plastic DIP (N) package with industry-standard pinout. The device features four identical amplifier sections sharing dual supply pins (VCC+ on Pin 4, VCC−/GND on Pin 11), with no internal connections on Pins 8 and 12.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 5, 9, 13 | Output (OUT1–OUT4) | Amplifier outputs; each drives loads down to 600 Ω while maintaining <13 mV ground swing |
| 2, 6, 10, 14 | Inverting Input (IN−1–IN−4) | Differential inputs with 70 MΩ min differential resistance; tolerate −1.5 V below ground with phase-reversal protection |
| 3, 7, 11, 15 | Non-Inverting Input (IN+1–IN+4) | Inputs referenced to VCC−/GND; common-mode range extends to ground in single-supply configuration |
| 4 | VCC+ | Positive supply pin; accepts +3.4 V to +22 V (single) or ±2 V to ±18 V (dual) |
| 11 | VCC− / GND | Negative supply / ground reference; serves as return path for all four amplifiers and input common-mode reference |
| 8, 12 | No Connect (NC) | Unbonded pins; must remain unconnected per TI datasheet to avoid parasitic coupling or latch-up risk |
Key Features
| Feature | Design Value |
|---|---|
| Single-supply operation with ground-swing output | Enables direct interfacing to 0–5 V ADCs and microcontrollers without level-shifting circuitry |
| Phase-reversal protection | Prevents output inversion when inputs fall to −1.5 V - avoids servo lockup in closed-loop sensor systems |
| Low 1/f noise (0.55 µV p-p, 0.1–10 Hz) | Supports high-resolution DC measurements in weigh scales, medical instrumentation, and precision thermometry |
| 400-Ω input series resistors | Limit substrate current during negative input transients - improves reliability in noisy industrial environments |
| 120 dB min channel separation | Reduces inter-amplifier crosstalk in multi-channel data acquisition, preserving signal integrity across all four channels |
Applications
| Strain Gauge Signal Conditioning | Industrial Temperature Transmitter |
|---|---|
Use Scenario: Amplifying mV-level Wheatstone bridge outputs from metal foil strain gauges in load cells and pressure sensors. IC Role / Device Role: Precision instrumentation amplifier front-end with matched gain and offset tracking across temperature. Use Value: 300 µV max VIO and 2.5 µV/°C tempco ensure <0.5 mV total offset error over −40°C to 105°C, meeting Class C industrial accuracy requirements. | Use Scenario: Converting RTD or thermistor resistance changes into calibrated 4–20 mA or 0–5 V process signals. IC Role / Device Role: Low-drift, low-noise transimpedance and voltage-output stage in analog transmitter signal chains. Use Value: 0.55 µV p-p input noise and rail-to-ground output swing enable sub-0.1°C resolution in 3-wire RTD circuits with 24-bit ADCs. |
| Medical ECG Front-End | Programmable Logic Controller (PLC) Analog Input Module |
Use Scenario: Amplifying µV-level biopotential signals from patient electrodes with high CMRR and low noise. IC Role / Device Role: First-stage gain and filtering amplifier in isolated, low-power ECG signal paths. Use Value: 97 dB min CMRR at 25°C and 1.5 nA max IIO minimize electrode half-cell potential errors and motion artifact coupling. | Use Scenario: Signal conditioning for multiple 0–10 V or ±10 V field sensor inputs in modular PLC backplanes. IC Role / Device Role: Quad-channel buffer, level-shifter, and anti-alias filter driver for simultaneous sampling ADCs. Use Value: Four independent amplifiers in one DIP package reduce PCB area by 60% vs discrete solutions while maintaining channel isolation >120 dB. |
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 |
|---|---|---|---|
| OP4177ARUZ | Lower VIO (60 µV max), lower noise (7.9 nV/√Hz), but only 0.5 V/µV min gain and no phase-reversal protection | Preferred for ultra-low-noise AC-coupled applications; unsuitable for single-supply sensor interfaces requiring ground-swing output | Select OP4177ARUZ when VIO <100 µV is mandatory and supply is dual-rail; retain LT1014DIN for ruggedized single-supply industrial designs. |
| LM324DT | Higher VIO (3 mV max), no phase-reversal protection, 0.6 V min output swing to ground, but wider supply range (3–32 V) | Cost-optimized general-purpose use; cannot replace LT1014DIN in precision DC-coupled or ground-referenced sensor paths | Choose LM324DT for non-critical biasing or power supply monitoring; LT1014DIN remains required for metrology-grade accuracy and fault-tolerant input behavior. |
Compared with OP4177ARUZ and LM324DT, LT1014DIN uniquely combines guaranteed ground-swing output, −1.5 V input phase-reversal immunity, and 300 µV VIO in an extended-temperature DIP package - making it irreplaceable in legacy industrial control and sensor signal chains where reliability under transient stress is non-negotiable.
Availability
LT1014DIN is available at Aetrix Electronics and suitable for industrial sensor interfaces, precision instrumentation, medical analog front-ends, and programmable logic controller (PLC) analog input modules requiring stable component supply across long product lifecycles.
Supply support for LT1014DIN 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 op-amp design and industrial-grade component qualification.
The LT1014 family was engineered specifically for high-stability, wide-temperature industrial and instrumentation applications - prioritizing low drift, single-supply operability, and robustness against input overvoltage and phase reversal.
FAQ
What is the maximum operating temperature range for LT1014DIN?
The LT1014DIN is characterized for operation from −40°C to +105°C, as confirmed in the TI SLOS039D datasheet Section 4 (Absolute Maximum Ratings) and Table 1 (Available Options). This extended temperature grade makes it suitable for deployment in harsh industrial environments such as factory automation controllers and outdoor process transmitters where ambient temperatures exceed commercial-grade limits.
Does LT1014DIN support true single-supply operation with output swing to ground?
Yes, LT1014DIN supports true single-supply operation with output swing to within 5 mV of ground under no-load conditions and ≤13 mV with 600 Ω load to ground, as specified in the "Electrical Characteristics" table for VCC+ = 5 V, VCC− = 0. Its all-NPN output stage maintains low impedance and high gain even near saturation - a key differentiator from conventional op-amps that require a negative rail to achieve ground-referenced output.
What is the input offset voltage specification for LT1014DIN at 25°C?
The input offset voltage for LT1014DIN is 300 µV maximum at 25°C, per the "Electrical Characteristics" table in the TI SLOS039D datasheet (Page 5, Parameter VIO, LT1014D column). This value applies specifically to the LT1014D grade - distinct from the tighter 180 µV max spec of the LT1014AM variant - and is guaranteed across the full −40°C to +105°C operating range up to 1000 µV.
Can LT1014DIN be used as a comparator in TTL-compatible circuits?
Yes, LT1014DIN can function as a precision comparator with TTL-compatible output levels in single-supply configurations (VCC+ = 5 V, VCC− = 0), as documented in the "Application Information" section (Page 19) of the TI SLOS039D datasheet. Its fast overdrive response (e.g., 2 µs for 2 mV overdrive) and rail-to-ground output swing allow direct interfacing with 74LS logic without pull-up resistors - though dedicated comparators remain preferred for high-speed applications.
Is phase reversal a concern when using LT1014DIN with inputs below ground?
No - LT1014DIN incorporates dedicated phase-reversal protection circuitry (Q21, Q22, Q27, Q28 per schematic on Page 3) that prevents output inversion even when inputs reach −1.5 V, as verified in Figure 24 of the TI SLOS039D datasheet. This feature is critical for preventing lockup in closed-loop systems like motor position feedback or pressure control loops where transient negative inputs may occur.
LT1014DIN Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-DIP (0.300", 7.62mm)
- Packaging:
- Bulk
- 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:
- 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:
- -40°C ~ 105°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 14-PDIP
LT1014DIN FAQ
1.How can I place an order for LT1014DIN through Aetrix?
Please submit a Request for Quotation (RFQ) for LT1014DIN 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 LT1014DIN reliable?
The price and inventory of LT1014DIN are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT1014DIN is usually 5 days.
3.What payment methods are accepted for LT1014DIN?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT1014DIN transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT1014DIN?
LT1014DIN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT1014DIN 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 LT1014DIN?
For technical support, including LT1014DIN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT1014DIN requirements.
6.How does Aetrix verify that LT1014DIN is sourced from the original manufacturer or authorized distributors?
All LT1014DIN 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 LT1014DIN meets industry standards.
7.What is the process for return or replacement of LT1014DIN?
All LT1014DIN units undergo pre-shipment inspection (PSI). If there is an issue with LT1014DIN, 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 LT1014DIN part is unused and in its original packaging.
Return procedure for LT1014DIN:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LT1014DIN Tags
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LM358DT
STMicroelectronics
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LM358DR
Texas Instruments
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LM2904DR
Texas Instruments
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LM358ADR
Texas Instruments
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LM2904DGKR
Texas Instruments
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LM324DR
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MCP6006T-E/OT
Microchip Technology
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MCP6006UT-E/OT
Microchip Technology
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LM324PWR
Texas Instruments
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LM2902PWR
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LM2902DR
Texas Instruments
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LM358P
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