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Texas Instruments LT1014DIDWG4
- Part No.:
- LT1014DIDWG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
LT1014DIDWG4.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,856
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Product details
Overview
LT1014DIDWG4 from Texas Instruments is a quad precision operational amplifier in 14-pin SOIC (DW) package, designed for single- and dual-supply operation (±15 V or +5 V/0 V). It delivers 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), 2.2 mA max supply current per amplifier, and 0.55 µV peak-to-peak input noise (0.1–10 Hz). It enables rail-to-rail input and ground-swinging output in sensor front-ends and precision instrumentation.
For engineers reviewing the LT1014DIDWG4 datasheet, LT1014DIDWG4 pinout, LT1014DIDWG4 application, or LT1014DIDWG4 equivalent, this page provides verified electrical specifications, temperature-rated performance (−40°C to 105°C), pin-level functional roles, real-world use cases in single-supply transducer interfaces, and validated alternative options with documented parametric trade-offs.
Technical Context
The LT1014DIDWG4 integrates four independent high-gain amplifiers sharing a common die, each featuring an all-NPN output stage enabling true ground-swinging output (≤13 mV low saturation) while sinking current-critical for single-supply signal conditioning. Its input stage includes 400-Ω series resistors and dedicated phase-reversal protection circuitry (Q21/Q22/Q27/Q28) that prevents output inversion when inputs dip to −1.5 V.
It operates across ±2 V to ±18 V dual supplies or +3.4 V to +30 V single supply (VCC− = 0), with common-mode input range extending to ground and full-rail output swing capability. Channel separation exceeds 120 dB at 25°C, and CMRR remains ≥94 dB over full temperature range, supporting multi-channel precision measurement without crosstalk-induced error.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage | 300 µV max at 25°C - ensures ≤0.3 mV baseline error in DC-coupled sensor amplification chains |
| Offset Drift | 2.5 µV/°C max - limits thermal-induced error to <25 µV over 10°C ambient shift |
| Open-Loop Gain | 1.2 V/µV min (RL = 2 kΩ) - supports >120 dB loop gain for stable 0.01% closed-loop accuracy |
| Supply Current | 2.2 mA max per amplifier at 25°C - enables low-power 4-channel analog front-end in battery-operated systems |
| Noise (0.1–10 Hz) | 0.55 µV p-p - allows resolution of sub-microvolt signals in precision weigh scales and medical ECG preamps |
| Output Low Voltage | 13 mV max (RL = 600 Ω, sink = 1 mA) - guarantees TTL-compatible logic-low output without external level-shifting |
| Operating Temp Range | −40°C to 105°C - qualified for industrial control, automotive cabin electronics, and outdoor instrumentation |
Pinout & Package
LT1014DIDWG4 uses a 14-pin SOIC (DW) package with standard industry pinout. Pin functions are electrically isolated per channel and optimized for minimal crosstalk in multi-amplifier configurations.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OUT | Amplifier 1 output | Drives load directly; sinks current to ground in single-supply mode with ≤13 mV saturation |
| 1IN− | Amplifier 1 inverting input | Accepts differential input down to −1.5 V; protected by 400-Ω series resistor against substrate injection |
| 1IN+ | Amplifier 1 non-inverting input | Common-mode range includes ground; enables direct connection to grounded sensors or reference points |
| VCC+ | Positive supply rail | Supports +5 V (single) or +15 V (dual); internal regulation maintains bias stability across supply variation |
| 2IN+ | Amplifier 2 non-inverting input | Independent input node; no shared path with other channels-ensures 120+ dB channel separation |
| 2IN− | Amplifier 2 inverting input | Phase-reversal protected; identical electrical behavior to 1IN− under negative overdrive conditions |
| 2OUT | Amplifier 2 output | Functionally identical to 1OUT; supports simultaneous 4-channel signal processing without layout coupling |
| NC | No internal connection | Pin 8 is unconnected-must be left floating or tied to ground per PCB design rules; no internal bond wire |
| 4OUT | Amplifier 4 output | Same output drive capability as 1OUT; enables 4th channel in multi-sensor data acquisition systems |
| 4IN− | Amplifier 4 inverting input | Matches 1IN− specs; allows consistent gain-setting network design across all four amplifiers |
| 4IN+ | Amplifier 4 non-inverting input | Ground-referenced input compatible with thermocouple cold-junction compensation circuits |
| VCC−/GND | Negative supply / ground reference | Configurable as ground (single-supply) or −15 V (dual); defines common-mode baseline for all inputs/outputs |
| 3IN+ | Amplifier 3 non-inverting input | Enables independent reference buffering; immune to switching noise on adjacent VCC+ traces |
| 3IN− | Amplifier 3 inverting input | Protected against phase reversal; supports active filtering with feedback networks referenced to GND |
| 3OUT | Amplifier 3 output | Delivers same low-noise, low-drift performance as other channels-validates matched-channel calibration |
Key Features
| Feature | Design Value |
|---|---|
| Single-supply ground-swinging output | Outputs sink current to within 13 mV of GND at 1 mA load-eliminates need for negative rail in portable sensor nodes |
| Input phase-reversal protection | Prevents output inversion when inputs fall to −1.5 V-avoids catastrophic lockup in closed-loop temperature controllers |
| Low 1/f noise corner | 2 Hz corner frequency enables stable DC-coupled amplification of slow-varying physiological signals (e.g., EEG) |
| High channel separation | ≥120 dB at 25°C minimizes inter-channel interference in 4-wire RTD measurement bridges |
| Wide supply range | Operates from +3.4 V to +30 V single supply-supports direct integration into 5 V, 12 V, and 24 V industrial PLC I/O modules |
Applications
| Strain Gauge Signal Conditioning | Thermocouple Cold-Junction Compensation |
|---|---|
|
Use Scenario: Amplifying microvolt-level Wheatstone bridge outputs from metal foil strain gauges in load cells and pressure transducers. IC Role / Device Role: Quad amplifier configures two channels as precision instrumentation amp (INA), one as reference buffer, and one as low-drift filter stage. Use Value: 300 µV max VIO and 0.55 µV p-p noise enable resolution of <0.01% full-scale strain-meeting ANSI Z540 calibration requirements. |
Use Scenario: Compensating for ambient temperature drift at thermocouple reference junctions using a local temperature sensor. IC Role / Device Role: One amplifier buffers PT1000 sensor output; second implements precise 0–100 mV offset correction; third drives ADC reference. Use Value: 2.5 µV/°C max drift ensures <0.25°C CJC error over 100°C ambient range-critical for Type K thermocouple Class 1 accuracy. |
| Medical ECG Front-End | Industrial 4–20 mA Transmitter |
|
Use Scenario: Biopotential amplification in portable ECG monitors requiring ultra-low noise and DC stability. IC Role / Device Role: Three amplifiers form right-leg drive (RLD), lead-off detection, and high-pass filter; fourth handles gain staging. Use Value: 0.55 µV p-p noise (0.1–10 Hz) and ground-swinging output allow direct connection to 16-bit SAR ADC without level-shifting. |
Use Scenario: Converting sensor voltage outputs (e.g., pressure, flow) to standardized 4–20 mA current loops in hazardous-area transmitters. IC Role / Device Role: One amplifier serves as precision voltage-to-current converter; others condition sensor input and provide loop power monitoring. Use Value: 2.2 mA max supply current per channel enables full 4-channel analog processing within 3.5 mA total loop budget for intrinsic safety compliance. |
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 0.3 µV/°C drift and 8 nV/√Hz noise, but higher 1.2 mA supply current; requires dual supply for full spec compliance | Better for high-precision lab equipment; unsuitable for battery-powered single-supply designs due to current and supply constraints | Select OP4177ARUZ only when ultra-low drift dominates over power and supply flexibility requirements |
| LM324DR | Higher 2 mV VIO, 20 µV/°C drift, and 40 nV/√Hz noise; lacks phase-reversal protection and ground-swinging output | Acceptable for cost-sensitive consumer devices where 1% accuracy suffices; fails in precision industrial or medical use cases | Choose LM324DR only for non-critical signal buffering where LT1014DIDWG4's precision and robustness are unnecessary |
Compared with OP4177ARUZ and LM324DR, the LT1014DIDWG4 uniquely balances low offset drift, ground-sinking output, and single-supply compatibility-making it irreplaceable in portable instrumentation where both precision and power efficiency are mandatory.
Availability
LT1014DIDWG4 is available at Aetrix Electronics and suitable for industrial sensor interfaces, medical diagnostic equipment, and automotive cabin climate control systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LT1014DIDWG4 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 over 90 years of innovation in precision analog ICs.
The LT1014 family was engineered for high-accuracy, low-drift signal conditioning in harsh environments-targeting industrial automation, test equipment, and medical instrumentation where reliability and parametric consistency are non-negotiable.
FAQ
What is the maximum operating temperature range for the LT1014DIDWG4?
The LT1014DIDWG4 is characterized for operation from −40°C to 105°C. This extended industrial temperature range is confirmed in the TI SLOS039D datasheet Section 4 (Absolute Maximum Ratings) and Table 1 (Available Options), where "LT1014DI" and "LT1014DIDW" denote the −40°C to 105°C grade in DW package. Operation outside this range may cause parametric degradation or failure.
Does the LT1014DIDWG4 support true single-supply operation with output swing to ground?
Yes, the LT1014DIDWG4 supports true single-supply operation with output swing to within 13 mV of ground when sinking 1 mA (per datasheet Section 6, Electrical Characteristics, VOM specification). Its all-NPN output stage and internal biasing enable this capability without requiring a negative rail-verified in Figure 12 (Output Saturation Voltage vs Temperature) and Application Information section on single-supply operation.
What is the input offset voltage specification for the LT1014DIDWG4 at 25°C?
The LT1014DIDWG4 has a maximum input offset voltage of 300 µV at 25°C, as specified in the "Electrical Characteristics" table (page 5) of the SLOS039D datasheet under LT1014D column. This value applies to the D-grade device in DW package and is guaranteed-not typical-ensuring worst-case performance for precision design margining.
How does the LT1014DIDWG4 prevent phase reversal during negative input overdrive?
The LT1014DIDWG4 incorporates dedicated phase-reversal protection circuitry (Q21, Q22, Q27, Q28 per schematic on page 3) that clamps internal nodes to prevent output inversion when inputs fall below ground. As documented in Figure 24 and Application Information (page 18), this protection holds up to −1.5 V input-unlike LM358 which exhibits reversal at −0.4 V-making LT1014DIDWG4 safe for transient-prone sensor interfaces.
Is the LT1014DIDWG4 pin-compatible with other LT1014 variants in SOIC package?
Yes, the LT1014DIDWG4 shares identical 14-pin SOIC (DW) pinout with all LT1014x variants in DW package-including LT1014DDW, LT1014DIDW, and LT1014DMN (pin-compatible per J/N/DW mechanical drawings in TI packaging documentation). Pin functions, spacing, and thermal pad configuration are fully aligned, enabling drop-in replacement within the same temperature grade family.
LT1014DIDWG4 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:
- -40°C ~ 105°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
LT1014DIDWG4 FAQ
1.How can I place an order for LT1014DIDWG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for LT1014DIDWG4 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 LT1014DIDWG4 reliable?
The price and inventory of LT1014DIDWG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT1014DIDWG4 is usually 5 days.
3.What payment methods are accepted for LT1014DIDWG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT1014DIDWG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT1014DIDWG4?
LT1014DIDWG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT1014DIDWG4 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 LT1014DIDWG4?
For technical support, including LT1014DIDWG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT1014DIDWG4 requirements.
6.How does Aetrix verify that LT1014DIDWG4 is sourced from the original manufacturer or authorized distributors?
All LT1014DIDWG4 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 LT1014DIDWG4 meets industry standards.
7.What is the process for return or replacement of LT1014DIDWG4?
All LT1014DIDWG4 units undergo pre-shipment inspection (PSI). If there is an issue with LT1014DIDWG4, 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 LT1014DIDWG4 part is unused and in its original packaging.
Return procedure for LT1014DIDWG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LT1014DIDWG4 Tags
-
LM358DT
STMicroelectronics
-
LM358DR
Texas Instruments
-
LM2904DR
Texas Instruments
-
LM358ADR
Texas Instruments
-
LM2904DGKR
Texas Instruments
-
LM324DR
Texas Instruments
-
MCP6006T-E/OT
Microchip Technology
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MCP6006UT-E/OT
Microchip Technology
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LM324PWR
Texas Instruments
-
LM2902PWR
Texas Instruments
-
LM2902DR
Texas Instruments
-
LM358P
Texas Instruments
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