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Analog Devices Inc. LT1014IN#PBF
- Part No.:
- LT1014IN#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-DIP (0.300", 7.62mm)
- Datasheet:
-
LT1014IN#PBF.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14DIP
- Quantity:
- Payment:
- Shipping:
Inventory:224
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Product details
Overview
LT1014IN#PBF from Analog Devices (formerly Linear Technology) is a quad precision operational amplifier in 14-lead PDIP package, featuring 50 µV max input offset voltage, 0.3 µV/°C drift, 0.15 nA offset current, 8 million open-loop gain, and 117 dB common-mode rejection - enabling high-accuracy signal conditioning in thermocouple amplifiers, strain gauge interfaces, and 4–20 mA transmitters.
For engineers reviewing the LT1014IN#PBF datasheet, LT1014IN#PBF pinout, LT1014IN#PBF application, or LT1014IN#PBF equivalent, this page delivers verified specifications, real-world use cases, pin-level design meaning, and validated alternatives for industrial sensor signal chains operating across –40°C to +85°C.
Technical Context
The LT1014IN#PBF integrates four independent precision op amps on a single die with matched internal transistor pairs, enabling consistent performance across channels. Its all-NPN output stage supports rail-to-rail sinking near ground (≤3.3 mV at 1 mA load) while maintaining >20 mA drive capability and high DC gain under single-supply operation (5 V).
Phase reversal protection circuitry prevents output inversion when inputs dip below ground - critical for transient-tolerant instrumentation - and its balanced input structure ensures <0.55 µVP-P 0.1–10 Hz noise and 0.07 pA/√Hz current noise, making it suitable for low-level DC-coupled measurements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage | 50 µV max - enables sub-100 µV system-level error budgets without external nulling. |
| Offset Drift | 0.3 µV/°C typ - ensures <1 µV total drift over 0–70°C ambient range. |
| Common-Mode Rejection | 117 dB min - rejects >700,000:1 of power supply or reference noise coupling. |
| Supply Current | 350 µA per amplifier - allows battery-powered operation with ~1 mW per channel at 3.4 V. |
| Output Swing (5 V) | 0.0033 V above ground (sinking 1 mA) - supports true single-supply interfacing with ADCs and logic. |
| Gain-Bandwidth Product | 0.4 V/µs slew rate - sufficient for 10 kHz closed-loop bandwidth with unity gain. |
| Input Noise (0.1–10 Hz) | 0.55 µVP-P - preserves resolution in DC-coupled bridge and thermocouple front-ends. |
Pinout & Package
LT1014IN#PBF uses a 14-lead plastic DIP (PDIP) package with JEDEC MS-001AC outline, 0.3" wide body, 0.1" lead pitch, and through-hole mounting. Thermal resistance θJA = 100°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Output A | Amplifier A output - drives loads up to 20 mA while maintaining precision DC accuracy. |
| 2 | Inverting Input A | High-impedance node (≥100 MΩ) - requires matched source impedances to minimize offset current error. |
| 3 | Non-inverting Input A | Same impedance as Pin 2 - used for differential sensing or reference-biased configurations. |
| 4 | V− (Negative Supply) | Ground reference for single-supply operation or negative rail for dual-supply systems. |
| 5 | Non-inverting Input B | Independent input for second amplifier - no crosstalk with A or C sections. |
| 6 | Inverting Input B | Matches Pin 2 characteristics - enables matched dual-channel instrumentation topologies. |
| 7 | Output B | Second independent output - shares same output stage architecture as Pin 1. |
| 8 | NC | No connect - not internally bonded; must remain unconnected. |
| 9 | Output D | Fourth amplifier output - fully isolated; used for auxiliary functions like reference buffering. |
| 10 | Inverting Input D | Input for fourth amplifier - identical specs to Pins 2 and 6. |
| 11 | Non-inverting Input D | Positive input for fourth amplifier - supports independent sensor channel or comparator function. |
| 12 | V+ (Positive Supply) | Accepts 5 V single supply or ±15 V dual supply - PSRR ≥120 dB suppresses supply ripple. |
| 13 | Non-inverting Input C | Third amplifier positive input - enables 3-channel simultaneous measurement. |
| 14 | Inverting Input C | Third amplifier negative input - matches all other inputs for consistent bias behavior. |
Key Features
| Feature | Design Value |
|---|---|
| Single-supply operation down to 3.4 V | Enables direct interface with 3× NiCd batteries or low-voltage microcontrollers without level-shifting. |
| Input common-mode range includes ground | Allows direct connection of grounded sensors (e.g., RTDs, thermocouples) without level-shifting resistors. |
| Output swings to within 3.3 mV of ground (1 mA sink) | Permits full-scale utilization of 0–5 V ADCs without headroom loss or external pull-downs. |
| Guaranteed 150 µV max offset (D/I grade) | Meets industrial calibration requirements without trimming - reduces test time and BOM cost. |
| Phase reversal protection | Prevents catastrophic latch-up in servo loops when inputs transiently go below ground. |
| Channel separation ≥140 dB | Maintains isolation between adjacent amplifiers - critical for multi-channel data acquisition systems. |
Applications
| Thermocouple Amplifier | Strain Gauge Signal Conditioner |
|---|---|
Use Scenario: Amplifying µV-level K-type thermocouple outputs with cold-junction compensation across 0–60°C ambient. IC Role / Device Role / Timing Role: Precision DC amplifier providing gain, offset correction, and low-noise buffering before ADC sampling. Use Value: Achieves ±1°C accuracy without external trimmers, leveraging guaranteed 50 µV offset and 0.3 µV/°C drift. | Use Scenario: Conditioning Wheatstone bridge outputs from metal foil strain gauges in load cells and pressure transducers. IC Role / Device Role / Timing Role: Instrumentation-grade amplifier with matched input pairs and high CMRR for rejecting bridge excitation noise. Use Value: Delivers 0–3.5 V ratiometric output over 0–350 psi with <0.05% nonlinearity using internal gain/zero trims. |
| 4–20 mA Current Loop Transmitter | Linearized Platinum RTD Interface |
Use Scenario: Converting 0–4 V process control signals into fully floating 4–20 mA loop outputs compliant with HART physical layer. IC Role / Device Role / Timing Role: Dual-op-amp current source driver with precision reference regulation and output compliance control. Use Value: Supports 12-bit accuracy with <±0.1% FSR error across –40°C to +85°C operating range. | Use Scenario: Linearizing and amplifying Pt100/Pt1000 RTD resistance changes for 0–400°C temperature measurement. IC Role / Device Role / Timing Role: Quad-amplifier configuration implementing constant-current excitation, linearization feedback, and gain/offset correction. Use Value: Achieves ±0.05°C absolute accuracy with programmable linearity trim via external resistor network. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OP4177ARUZ | Lower offset (60 µV max), lower noise (8 nV/√Hz), but higher supply current (500 µA/amplifier) and no phase reversal protection. | Preferred for low-noise AC-coupled applications; unsuitable for input-overdrive scenarios requiring robustness below ground. | Select OP4177ARUZ only when ultra-low broadband noise dominates design priority over single-supply transient resilience. |
| LM324DR | Higher offset (3 mV max), no guaranteed drift spec, no phase reversal protection, and 70 dB CMRR - significantly less precise. | Suitable for cost-sensitive, non-critical DC amplification where ±10 mV error is acceptable. | Choose LM324DR only for legacy board replacements where precision is secondary to footprint compatibility and cost. |
Compared with OP4177ARUZ and LM324DR, LT1014IN#PBF uniquely balances low DC error, single-supply robustness, and proven phase-reversal immunity - making it irreplaceable in certified industrial sensor modules where reliability under fault conditions is mandatory.
Availability
LT1014IN#PBF is available at Aetrix Electronics and suitable for thermocouple amplifiers, strain gauge interfaces, 4–20 mA transmitters, and platinum RTD conditioners requiring stable component supply across extended temperature ranges.
Supply support for LT1014IN#PBF 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
Analog Devices acquired Linear Technology in 2017 and maintains full product support, datasheet archives, and application engineering for legacy Linear parts including the LT1014 series.
The LT1014 belongs to Linear's precision op amp product line, designed specifically for high-accuracy, low-drift analog signal conditioning in industrial, medical, and test equipment where long-term stability and single-supply operation are essential.
FAQ
What is the operating temperature range for LT1014IN#PBF?
The LT1014IN#PBF is rated for –40°C to +85°C operation, matching the "I" grade designation in Linear Technology's ordering matrix. This range is validated per the Absolute Maximum Ratings table and confirmed in Electrical Characteristics sections covering LT1014C/D/I/M grades. All key parameters - including offset voltage, drift, and output swing - are guaranteed across this full range under both ±15 V and 5 V single-supply conditions.
Does LT1014IN#PBF support true single-supply operation with rail-to-rail output?
Yes, LT1014IN#PBF supports true single-supply operation from 3.4 V to 44 V total supply. Its output can swing to within 3.3 mV of ground while sinking 1 mA, and to within 100 mV of V+ while sourcing 1 mA - verified in the Electrical Characteristics table under VS = 5 V, 0 V conditions. Input common-mode range extends to ground, eliminating need for level-shifting networks in sensor front-ends.
Is LT1014IN#PBF pin-compatible with LM324?
Yes, LT1014IN#PBF uses the industry-standard 14-pin DIP pinout identical to LM324, LM348, OP-11, and 4156. Pin assignments for outputs, inputs, and supplies match exactly - enabling direct drop-in replacement in existing designs. However, unlike LM324, LT1014IN#PBF provides guaranteed precision specs (e.g., 150 µV max offset) and phase reversal protection not present in the LM324 family.
What is the maximum load current LT1014IN#PBF can drive?
LT1014IN#PBF can source and sink more than 20 mA of load current while retaining high open-loop gain - confirmed in the product description and verified by output voltage swing tests at 2 kΩ and 600 Ω loads. Under 5 V single supply, it delivers ±12.5 V swing into 2 kΩ and maintains ≥3.3 mV above ground while sinking 1 mA, making it suitable for driving ADC references, LED drivers, and small solenoids directly.
How does LT1014IN#PBF handle input voltages below ground?
LT1014IN#PBF incorporates dedicated phase reversal protection circuitry (Q21, Q22, Q27, Q28) that prevents output inversion when inputs fall below ground - even to –1.5 V - unlike LM324 or OP-20. Internal 400 Ω series resistors also limit substrate current during overvoltage transients. This behavior is explicitly characterized in the Applications Information section and validated in TPC10 and TPC11 plots showing bias current vs. common-mode voltage.
LT1014IN#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- LT®
- Package/Case:
- 14-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- 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:
- 60 µV
- Current - Supply:
- 350µA (x4 Channels)
- Current - Output / Channel:
- 20 mA
- Voltage - Supply Span (Min):
- 4 V
- Voltage - Supply Span (Max):
- 44 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 14-PDIP
LT1014IN#PBF FAQ
1.How can I place an order for LT1014IN#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT1014IN#PBF 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 LT1014IN#PBF reliable?
The price and inventory of LT1014IN#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT1014IN#PBF is usually 5 days.
3.What payment methods are accepted for LT1014IN#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT1014IN#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT1014IN#PBF?
LT1014IN#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT1014IN#PBF 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 LT1014IN#PBF?
For technical support, including LT1014IN#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT1014IN#PBF requirements.
6.How does Aetrix verify that LT1014IN#PBF is sourced from the original manufacturer or authorized distributors?
All LT1014IN#PBF 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 LT1014IN#PBF meets industry standards.
7.What is the process for return or replacement of LT1014IN#PBF?
All LT1014IN#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LT1014IN#PBF, 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 LT1014IN#PBF part is unused and in its original packaging.
Return procedure for LT1014IN#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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