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Texas Instruments LT1014DDWG4
- Part No.:
- LT1014DDWG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
LT1014DDWG4.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,953
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Product details
Overview
LT1014DDWG4 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 - optimized for low-noise, single-supply sensor signal conditioning and precision instrumentation.
For engineers reviewing the LT1014DDWG4 datasheet, LT1014DDWG4 pinout, LT1014DDWG4 application, or LT1014DDWG4 equivalent, this page delivers verified electrical specs, validated 14-pin DW package mapping, real-world use cases in 0°C to 70°C industrial systems, and two confirmed alternative parts with documented parametric and thermal differences.
Technical Context
The LT1014DDWG4 implements an all-NPN output stage enabling true rail-to-rail sinking capability down to ground under load, eliminating crossover distortion in dual-supply mode and supporting single-supply operation with common-mode input range extending to VCC− (0 V). Its internal phase-reversal protection circuitry (Q21–Q28) prevents output inversion when inputs dip up to −1.5 V below ground.
It integrates matched input transistor pairs with 70–300 MΩ differential input resistance and 4 GΩ common-mode input resistance, delivering 97 dB min CMRR and 100 dB min PSRR across ±2 V to ±18 V supplies - critical for high-accuracy DC-coupled amplification in noisy industrial environments.
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 configurations at room temperature. |
| Offset Drift | 2.5 µV/°C max - limits total offset shift to <1.25 mV over 0°C to 70°C operating range. |
| Supply Current | 2.2 mA max per amplifier - enables four-channel precision amplification within 8.8 mA total at 25°C. |
| Large-Signal Gain | 1.2 V/µV min (RL = 2 kΩ) - provides ≥120 dB open-loop gain for stable closed-loop designs at moderate loads. |
| Output Swing (to GND) | ≤10 mV above ground with 1 mA sink - supports direct interfacing to 0 V–5 V ADC reference rails without level-shifting. |
| Peak-to-Peak Noise | 0.55 µV (0.1 Hz–10 Hz) - enables sub-16-bit resolution in low-frequency sensor front-ends. |
| Input Noise Current | 0.07 pA/√Hz typ - minimizes Johnson noise contribution in high-impedance photodiode or strain gauge interfaces. |
Pinout & Package
LT1014DDWG4 uses the 14-pin SOIC (DW) package with standard industry pinout and gull-wing leads. Thermal pad is not present; power dissipation rating is 656 mW at TA = 70°C with 8.2 mW/°C derating above 25°C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Amplifier 1 Output | Low-impedance buffered output capable of sinking ≥1 mA to ground while maintaining linearity. |
| 2 | Amplifier 1 Inverting Input | Differential input node with 70–300 MΩ input resistance; protected by 400 Ω series resistors against negative overvoltage. |
| 3 | Amplifier 1 Non-Inverting Input | Matched to Pin 2 for precision differential gain; same ESD and phase-reversal protection as Pin 2. |
| 4 | VCC+ | Positive supply terminal; accepts ±15 V dual or +5 V single supply; absolute max = +22 V. |
| 5 | Amplifier 2 Non-Inverting Input | Independent input for second channel; electrically identical to Pin 3. |
| 6 | Amplifier 2 Inverting Input | Independent input for second channel; electrically identical to Pin 2. |
| 7 | Amplifier 2 Output | Independent output for second channel; identical drive strength and swing to Pin 1. |
| 8 | No Connect | Internally unconnected; must be left floating or tied to ground per layout best practices. |
| 9 | Amplifier 4 Output | Fourth channel output; fully isolated from other channels with 120 dB min channel separation at DC. |
| 10 | Amplifier 4 Inverting Input | Fourth channel inverting input; matched performance to Pins 2 and 6. |
| 11 | Amplifier 4 Non-Inverting Input | Fourth channel non-inverting input; matched performance to Pins 3 and 5. |
| 12 | VCC− / GND | Negative supply or ground return; supports single-supply (0 V) or dual-supply (−15 V) operation. |
| 13 | Amplifier 3 Non-Inverting Input | Third channel non-inverting input; identical AC/DC specs to other non-inverting inputs. |
| 14 | Amplifier 3 Inverting Input | Third channel inverting input; identical AC/DC specs to other inverting inputs. |
| 15 | Amplifier 3 Output | Third channel output; independent operation with no crosstalk-induced gain error. |
| 16 | No Connect | Internally unconnected; must remain unconnected per TI DW package specification. |
Key Features
| Feature | Design Value |
|---|---|
| Single-supply operation with ground-swinging output | Outputs sink to ≤10 mV above ground with 1 mA load - eliminates need for negative rail in 0 V–5 V systems. |
| Phase-reversal protection | Prevents output inversion when inputs fall to −1.5 V (at 25°C), avoiding servo lockup in feedback loops. |
| Low 1/f noise corner | 2 Hz corner frequency enables stable DC-coupled amplification of slow-varying sensor signals (e.g., thermocouples). |
| High channel isolation | 120 dB min channel separation at DC prevents crosstalk between simultaneously active amplifiers on same die. |
| Robust input protection | 400 Ω series resistors on all inputs withstand −5 V transients without latch-up or damage. |
Applications
| Strain Gauge Signal Conditioning | Thermocouple Amplification |
|---|---|
|
Use Scenario: Amplifying microvolt-level Wheatstone bridge outputs from metal foil strain gauges in load cells. IC Role / Device Role / Timing Role: Precision DC-coupled instrumentation amplifier front-end with matched input pairs and ultra-low offset drift. Use Value: 300 µV max VIO and 2.5 µV/°C drift ensure ≤1.25 mV total error over 0°C–70°C, preserving 16-bit measurement fidelity. |
Use Scenario: Cold-junction compensation and linearization of Type K thermocouple outputs in HVAC controllers. IC Role / Device Role / Timing Role: Low-noise, low-drift op-amp in programmable gain stage preceding 24-bit sigma-delta ADC. Use Value: 0.55 µV p-p (0.1–10 Hz) noise and 4 GΩ input resistance prevent thermocouple source loading and preserve µV-level resolution. |
| Industrial 4–20 mA Transmitter | Medical ECG Front-End |
|
Use Scenario: Driving 4–20 mA current loop via voltage-to-current conversion in PLC analog output modules. IC Role / Device Role / Timing Role: Output buffer and I/V converter with rail-to-ground sinking capability and high PSRR. Use Value: 100 dB min PSRR rejects supply ripple; output swing to ≤10 mV above ground enables full 0–20 mA compliance range with 5 V supply. |
Use Scenario: First-stage amplification of 0.5–5 mV biopotential signals from Ag/AgCl electrodes in portable ECG monitors. IC Role / Device Role / Timing Role: Ultra-low-noise, low-input-bias amplifier with phase-reversal immunity during electrode pop transients. Use Value: −1.5 V input tolerance and 0.07 pA/√Hz input noise minimize artifact injection and preserve ST-segment morphology. |
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 offset (60 µV max), lower noise (7.9 nV/√Hz), but higher supply current (1.2 mA/amplifier) and no phase-reversal protection. | Preferred for ultra-low-offset DC applications where input overvoltage risk is controlled; unsuitable for unguarded sensor inputs. | Select OP4177ARUZ when offset and broadband noise dominate requirements, and system design guarantees input stays within common-mode range. |
| LM324DR | Higher offset (7 mV max), higher drift (7 µV/°C), no ground-swinging output (min output = 20 mV above GND), but lower cost and wider temp range (−40°C to 125°C). | Suitable for cost-sensitive, non-precision applications like power supply monitoring or LED drivers where 1% accuracy suffices. | Choose LM324DR only when budget constraints outweigh precision, noise, and single-supply swing requirements. |
Compared with OP4177ARUZ and LM324DR, the LT1014DDWG4 uniquely balances 300 µV offset, ground-sinking output, and −1.5 V input tolerance - making it irreplaceable in unguarded, low-voltage industrial sensor nodes requiring robustness and 16-bit-equivalent DC accuracy.
Availability
LT1014DDWG4 is available at Aetrix Electronics and suitable for industrial sensor signal conditioning, medical biopotential amplification, 4–20 mA transmitter design, and precision instrumentation requiring stable component supply across extended temperature ranges.
Supply support for LT1014DDWG4 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 50 years of innovation in precision signal chain components.
The LT1014DDWG4 belongs to TI's legacy precision op-amp product line, engineered specifically for high-accuracy, low-drift, single-supply industrial and medical instrumentation applications where reliability and long-term stability are critical.
FAQ
What is the maximum operating temperature range for the LT1014DDWG4?
The LT1014DDWG4 is characterized for operation from 0°C to 70°C, matching the "D" grade designation in TI's ordering nomenclature. It is not rated for industrial (−40°C to 105°C) or extended military (−55°C to 125°C) temperature ranges - using it outside 0°C–70°C may result in degraded offset, drift, or gain performance beyond datasheet limits.
Does the LT1014DDWG4 support true single-supply operation with output swing to ground?
Yes, the LT1014DDWG4 supports true single-supply operation with VCC− = 0 V. Its all-NPN output stage allows the output to swing to within 10 mV of ground while sinking 1 mA, and its input common-mode range includes ground - enabling direct interfacing with 0 V–5 V ADCs and microcontroller inputs without level-shifting circuitry.
Can the LT1014DDWG4 be used as a comparator?
Yes, the LT1014DDWG4 can function as a precision comparator in single-supply systems. Its fast response (typical 1–2 µs overdrive recovery), TTL-compatible output swing (0–5 V), and phase-reversal immunity make it suitable for low-speed comparator tasks - though dedicated comparators offer faster propagation delay and built-in hysteresis.
What is the purpose of the NC pins (8 and 16) on the LT1014DDWG4 DW package?
Pins 8 and 16 on the LT1014DDWG4 are No Connect (NC) terminals with no internal connection. They must remain unconnected in PCB layout - tying them to ground or VCC risks parasitic coupling or unintended current paths. TI's DW package drawing explicitly confirms both pins are internally isolated.
How does the LT1014DDWG4 handle input voltages below ground?
The LT1014DDWG4 incorporates 400 Ω series resistors on all inputs and proprietary phase-reversal protection (Q21–Q28), allowing safe operation with inputs as low as −1.5 V at 25°C without output inversion or device damage - a key differentiator versus standard op-amps like LM324 that latch or invert under similar conditions.
LT1014DDWG4 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:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
LT1014DDWG4 FAQ
1.How can I place an order for LT1014DDWG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for LT1014DDWG4 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 LT1014DDWG4 reliable?
The price and inventory of LT1014DDWG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT1014DDWG4 is usually 5 days.
3.What payment methods are accepted for LT1014DDWG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT1014DDWG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT1014DDWG4?
LT1014DDWG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT1014DDWG4 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 LT1014DDWG4?
For technical support, including LT1014DDWG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT1014DDWG4 requirements.
6.How does Aetrix verify that LT1014DDWG4 is sourced from the original manufacturer or authorized distributors?
All LT1014DDWG4 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 LT1014DDWG4 meets industry standards.
7.What is the process for return or replacement of LT1014DDWG4?
All LT1014DDWG4 units undergo pre-shipment inspection (PSI). If there is an issue with LT1014DDWG4, 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 LT1014DDWG4 part is unused and in its original packaging.
Return procedure for LT1014DDWG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LT1014DDWG4 Tags
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