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Texas Instruments LT1014DDW
- Part No.:
- LT1014DDW
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
LT1014DDW.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:789
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Product details
Overview
LT1014DDW from Texas Instruments is a quad precision operational amplifier in a 16-pin SOIC (DW) package, designed for low-offset, low-noise, single- or dual-supply instrumentation applications. It delivers 300 µV max input offset voltage at 25°C, 2.5 µV/°C max offset drift, 1.2 V/µV min large-signal gain (RL = 2 kΩ), 0.55 µV peak-to-peak input noise (0.1–10 Hz), and rail-to-rail output swing to ground while sinking current - enabling high-accuracy signal conditioning in industrial sensor interfaces and precision data acquisition systems.
For engineers reviewing the LT1014DDW datasheet, LT1014DDW pinout, LT1014DDW application, or LT1014DDW equivalent, this page provides verified electrical specifications, thermal operating range (−40°C to 105°C), DW-package terminal mapping, design-critical features like phase-reversal protection and single-supply input/output capability, and validated alternative parts for sourcing continuity and design flexibility.
Technical Context
The LT1014DDW integrates four independent precision op-amps with all-NPN output stages, enabling true output swing to ground under sink load and eliminating crossover distortion in dual-supply mode. Its input stage includes 400-Ω series resistors and dedicated phase-reversal protection circuitry (Q21/Q22/Q27/Q28) that prevents output inversion when inputs fall up to −1.5 V below ground - a critical reliability feature absent in LM358-class amplifiers.
It supports both ±15 V dual supply and +5 V/0 V single supply operation, with common-mode input range extending to VCC− (ground) and output capable of sinking ≥1 mA while maintaining ≤25 mV saturation voltage. 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 differential amplifier configurations without trimming. |
| Offset Voltage Drift | 2.5 µV/°C max - limits temperature-induced error to <25 µV over 10°C ambient shift, critical for uncooled industrial sensors. |
| Large-Signal Gain | 1.2 V/µV min (RL = 2 kΩ) - provides >120 dB open-loop gain, supporting stable 100× closed-loop gain with <0.01% linearity error. |
| Input Noise (0.1–10 Hz) | 0.55 µV peak-to-peak - enables resolution of sub-µV signals in low-frequency sensor front-ends (e.g., strain gauges, thermopiles). |
| Supply Current per Amp | 0.55 mA max at 25°C - allows full quad operation at <2.2 mA total, suitable for battery-powered portable instrumentation. |
| Output Swing to Ground | ≤25 mV at 1 mA sink (VCC+ = 5 V) - permits direct interfacing with 3.3 V or 5 V ADC reference rails without level-shifting. |
| Operating Temperature | −40°C to 105°C - qualified for under-hood automotive, industrial PLC, and outdoor environmental monitoring deployments. |
Pinout & Package
LT1014DDW uses a 16-pin SOIC (DW) package with standard industry pinout. Pin 1 is 1OUT; pins 8 and 9 are NC (no internal connection); pin 16 is VCC+; pin 4 is VCC−/GND. The DW package is tape-and-reel compatible (suffix R available).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 5, 10, 15 | Amplifier Output (1OUT, 2OUT, 3OUT, 4OUT) | Low-impedance NPN emitter-follower outputs capable of sinking ≥1 mA to ground with <25 mV saturation voltage in single-supply mode. |
| 2, 6, 9, 13 | Inverting Input (1IN−, 2IN−, 3IN−, 4IN−) | Differential input terminals with 400-Ω series protection resistors preventing latch-up during negative transients down to −1.5 V. |
| 3, 7, 11, 14 | Non-inverting Input (1IN+, 2IN+, 3IN+, 4IN+) | High-impedance inputs (70 MΩ min differential resistance) with phase-reversal immunity when driven below ground. |
| 4 | VCC− / GND | Ground reference for single-supply operation; also serves as negative rail in dual-supply mode (±15 V). |
| 16 | VCC+ | Positive supply rail - supports 3.4 V to 22 V operation; enables low-voltage battery use and high-voltage industrial compliance. |
| 8, 9 | NC | No internal connection - must be left floating; not tied to substrate or power planes to avoid parasitic coupling. |
Key Features
| Feature | Design Value |
|---|---|
| Single-supply input/output capability | Common-mode input range includes ground; output swings to within 25 mV of ground while sinking 1 mA - eliminates need for level-shifting in 0–5 V systems. |
| Phase-reversal protection | Active circuitry prevents output inversion when inputs drop to −1.5 V, avoiding servo lockup and false triggering in feedback control loops. |
| Low 1/f noise corner | 2 Hz corner frequency with 0.55 µVpp (0.1–10 Hz) - preserves signal integrity in DC-coupled sensor amplification and precision integrators. |
| High channel separation | ≥120 dB at 25°C - minimizes inter-channel crosstalk in simultaneous-sampling multi-channel data loggers and medical ECG front-ends. |
| Robust absolute maximum ratings | ±22 V supply, ±30 V differential input, unlimited short-circuit duration - withstands transient overvoltage events in industrial 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: Precision instrumentation amplifier front-end with matched quad topology enabling ratiometric excitation and common-mode rejection. Use Value: 300 µV max offset and 0.55 µVpp noise preserve <0.1% full-scale accuracy across 0–70°C ambient range without calibration. |
Use Scenario: Measuring cold-junction temperature via platinum RTD in thermocouple-based temperature controllers for HVAC and furnace systems. IC Role / Device Role: Low-drift, low-noise buffer and signal conditioner for 4-wire RTD sensing with constant-current excitation. Use Value: 2.5 µV/°C offset drift ensures <0.5°C measurement error over full industrial temperature range (−40°C to 105°C). |
| Single-Supply Data Acquisition Front-End | Industrial Analog Output Driver |
Use Scenario: Buffering and scaling analog sensor outputs (e.g., pH, humidity, gas concentration) into 0–5 V range for SAR ADCs in programmable logic controllers. IC Role / Device Role: Rail-to-ground output driver with phase-reversal immunity, enabling reliable operation during sensor disconnect or fault transients. Use Value: Output sinks 1 mA to ground with ≤25 mV saturation, ensuring full 0–5 V dynamic range utilization without headroom loss. |
Use Scenario: Driving 4–20 mA current loops via voltage-to-current conversion in industrial process transmitters and field instruments. IC Role / Device Role: High-gain, low-drift op-amp in Howland current source configuration with precise setpoint referencing. Use Value: 1.2 V/µV min gain and 70 MΩ min input resistance maintain <0.05% loop accuracy over temperature and supply variations. |
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 (7.5 nV/√Hz), but no phase-reversal protection and 0°C to 70°C temp range only. | Preferred for ultra-low-noise lab equipment; unsuitable for automotive or industrial environments requiring −40°C operation or negative input tolerance. | Select OP4177ARUZ only when offset/noise dominates over robustness and temperature range. |
| LM324DT | Higher offset (3 mV max), higher drift (7 µV/°C), no phase-reversal protection, but wider supply range (3–32 V) and lower cost. | Suitable for non-critical consumer electronics; fails in precision sensor interfaces due to excessive drift and lack of ground-swing capability. | Choose LM324DT only for cost-sensitive, non-precision applications where 0.1% accuracy is acceptable. |
Compared with OP4177ARUZ and LM324DT, the LT1014DDW uniquely balances precision (300 µV offset), ruggedness (−40°C to 105°C, phase-reversal immunity), and single-supply usability - making it irreplaceable in industrial sensor signal chains where reliability and accuracy coexist.
Availability
LT1014DDW is available at Aetrix Electronics and suitable for industrial sensor interfaces, precision data acquisition systems, and automotive cabin temperature monitoring requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LT1014DDW 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 reliability validation.
The LT1014 product line was engineered for high-accuracy, low-drift signal conditioning in harsh environments - targeting applications demanding guaranteed performance from −40°C to 105°C without external calibration or trimming.
FAQ
What is the maximum operating temperature range for the LT1014DDW?
The LT1014DDW is characterized for operation from −40°C to 105°C. This extended temperature rating is explicitly confirmed in the TI SLOS039D datasheet's "Available Options" table and Absolute Maximum Ratings section, making it suitable for under-hood automotive and industrial control applications where ambient temperatures exceed commercial-grade limits.
Does the LT1014DDW support true single-supply operation with input and output referenced to ground?
Yes. The LT1014DDW supports true single-supply operation with VCC− = 0 V. Its common-mode input voltage range extends to ground, and its all-NPN output stage sinks current while swinging to within 25 mV of ground - verified in the Electrical Characteristics tables for VCC+ = 5 V conditions. This eliminates the need for virtual ground circuits in 0–5 V systems.
What distinguishes the LT1014DDW from standard quad op-amps like the LM324 in terms of input stage behavior?
Unlike the LM324, the LT1014DDW incorporates dedicated phase-reversal protection circuitry (Q21/Q22/Q27/Q28) and 400-Ω input series resistors. This prevents output inversion when inputs fall to −1.5 V - a failure mode that causes lockup in LM324-based servo systems. The LT1014DDW also achieves 300 µV max offset vs. LM324's 3 mV, enabling 10× higher DC accuracy.
Can the LT1014DDW drive a 600 Ω load while maintaining precision performance?
Yes. The LT1014DDW specifies 1.2 V/µV min large-signal gain with RL = 2 kΩ and 0.5 V/µV min with RL = 600 Ω. Its output stage maintains low impedance and high open-loop gain even under 600 Ω loading, ensuring stable closed-loop behavior in active filter and line-driver designs without gain compression or distortion.
Is the LT1014DDW pin-compatible with other members of the LT1014 family such as the LT1014DIDW?
Yes. All LT1014x DW-package variants - including LT1014DDW, LT1014DIDW, and LT1014DMDW - share identical 16-pin SOIC (DW) footprints and pinouts per the TI datasheet's DW package diagram. Differences are limited to temperature grade (0–70°C, −40–105°C, or −55–125°C) and offset voltage specifications, not physical or electrical pin functionality.
LT1014DDW Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 16-SOIC (0.295", 7.50mm Width)
- 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:
- 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
LT1014DDW FAQ
1.How can I place an order for LT1014DDW through Aetrix?
Please submit a Request for Quotation (RFQ) for LT1014DDW 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 LT1014DDW reliable?
The price and inventory of LT1014DDW are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT1014DDW is usually 5 days.
3.What payment methods are accepted for LT1014DDW?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT1014DDW transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT1014DDW?
LT1014DDW orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT1014DDW 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 LT1014DDW?
For technical support, including LT1014DDW datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT1014DDW requirements.
6.How does Aetrix verify that LT1014DDW is sourced from the original manufacturer or authorized distributors?
All LT1014DDW 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 LT1014DDW meets industry standards.
7.What is the process for return or replacement of LT1014DDW?
All LT1014DDW units undergo pre-shipment inspection (PSI). If there is an issue with LT1014DDW, 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 LT1014DDW part is unused and in its original packaging.
Return procedure for LT1014DDW:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LT1014DDW Tags
-
LM358DT
STMicroelectronics
-
LM358DR
Texas Instruments
-
LM2904DR
Texas Instruments
-
LM358ADR
Texas Instruments
-
LM2904DGKR
Texas Instruments
-
LM324DR
Texas Instruments
-
MCP6006T-E/OT
Microchip Technology
-
MCP6006UT-E/OT
Microchip Technology
-
LM324PWR
Texas Instruments
-
LM2902PWR
Texas Instruments
-
LM2902DR
Texas Instruments
-
LM358P
Texas Instruments
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