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Texas Instruments LT1014DDWR
- Part No.:
- LT1014DDWR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
LT1014DDWR.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,219
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Product details
Overview
LT1014DDWR from Texas Instruments is a quad precision operational amplifier in a 16-pin SOIC (DW) package, featuring 300 µV max input offset voltage at 25°C, 2.5 µV/°C max offset drift, and rail-to-ground output swing on single 5-V or dual ±15-V supplies. It delivers 1.2 V/µV min large-signal gain (RL = 2 kΩ), 0.55 µV peak-to-peak input noise (0.1–10 Hz), and supports precision sensor signal conditioning in industrial instrumentation.
For engineers reviewing the LT1014DDWR datasheet, LT1014DDWR pinout, LT1014DDWR application, or LT1014DDWR equivalent, this device is selected for low-drift analog front-ends requiring guaranteed performance across −40°C to 105°C, single-supply compatibility with ground-referenced inputs/outputs, and phase-reversal immunity during input overdrive.
Technical Context
The LT1014DDWR integrates four independent high-gain amplifiers with all-NPN output stages enabling true rail-to-ground output sinking (≤13 mV at 1 mA load) and input common-mode range extending to VCC− (ground in single-supply mode). Its internal protection includes 400-Ω series input resistors and dedicated phase-reversal suppression circuitry (Q21–Q28) that prevents output inversion when inputs fall up to −1.5 V below ground.
It operates across dual ±15-V or single 5-V supplies with supply current ≤0.55 mA per amplifier at 25°C. The architecture supports stable unity-gain operation without external compensation and maintains ≥120 dB channel separation at DC, making it suitable for multi-channel precision measurement where crosstalk must be minimized.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage | 300 µV max at 25°C - ensures ≤0.3 mV baseline error in 10-bit ADC interfaces with 3.3 V full-scale range. |
| Offset Drift | 2.5 µV/°C max - contributes ≤25 µV error over 10°C ambient shift, critical for uncalibrated temperature sensors. |
| Supply Current | 0.55 mA max per amplifier at 25°C - enables four-channel operation within 2.2 mA total, ideal for battery-powered data loggers. |
| Output Swing to Ground | 13 mV max at 1 mA sink current - allows direct interfacing with 0–5 V ADC references without level-shifting circuitry. |
| Peak-to-Peak Input Noise | 0.55 µV (0.1–10 Hz) - supports sub-16-bit resolution in low-frequency sensor amplification (e.g., strain gauges, thermopiles). |
| Large-Signal Gain | 1.2 V/µV min (RL = 2 kΩ) - provides ≥120 dB open-loop gain for stable closed-loop configurations down to 0.1% accuracy. |
| Common-Mode Range | Includes VCC− (ground) in single-supply mode - eliminates need for input biasing networks in ground-referenced transducer circuits. |
Pinout & Package
LT1014DDWR uses a 16-pin SOIC (DW) package with exposed pad (not electrically connected), 7.5 mm × 10.3 mm body, and 1.27 mm pitch. Pin 1 marked by notch or dot; pin numbering follows standard IC convention (counterclockwise from top-left corner).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 5, 9, 13 | Output (OUT1–OUT4) | Amplifier outputs capable of sinking ≥1 mA to ground while maintaining ≤13 mV saturation voltage. |
| 2, 6, 10, 14 | Inverting Input (IN−1–IN−4) | Differential inputs with 70 MΩ min differential resistance; tolerate −1.5 V below ground without phase reversal. |
| 3, 7, 11, 15 | Non-Inverting Input (IN+1–IN+4) | Inputs referenced to VCC−; include 400-Ω series protection resistors against substrate injection damage. |
| 4 | VCC+ | Positive supply terminal - accepts +5 V (single) or +15 V (dual); absolute max 22 V. |
| 12 | VCC−/GND | Negative supply or ground reference - common-mode range extends to this pin; output swings to within 13 mV. |
| 8, 16 | No Connect (NC) | Internally unconnected pins; must remain floating per TI DW package specification. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-ground output swing | Sinks 1 mA to GND with ≤13 mV saturation - enables direct connection to 0-V referenced ADCs and logic inputs. |
| Phase-reversal immunity | Withstands −1.5 V input overdrive without output inversion - prevents lockup in closed-loop servo and PID control systems. |
| Single-supply optimized input stage | Common-mode range includes VCC− (ground) and tolerates transient negative excursions - eliminates input biasing components. |
| Low 1/f noise corner | 2 Hz corner frequency with 0.55 µVpp (0.1–10 Hz) - preserves signal integrity in DC-coupled precision measurement paths. |
| Guaranteed operation at −40°C to 105°C | Characterized across full industrial temperature range - supports deployment in outdoor environmental monitors and motor drives. |
Applications
| Strain Gauge Signal Conditioning | Industrial Temperature Transmitter |
|---|---|
|
Use Scenario: Amplifying mV-level Wheatstone bridge outputs from metal foil strain gauges in load cells, with 24-bit ΣΔ ADC digitization. IC Role / Device Role / Timing Role: Precision instrumentation amplifier front-end providing gain, offset trimming, and rail-to-ground output drive. Use Value: 300 µV max VIO and 2.5 µV/°C drift ensure ≤0.02% FS error over 0–50°C ambient range without recalibration. |
Use Scenario: Converting RTD or thermistor resistance changes into 4–20 mA loop signals for PLC analog inputs. IC Role / Device Role / Timing Role: Sensor interface amplifier with programmable gain and output buffer driving current-loop DAC. Use Value: Output swing to ground enables direct interfacing with low-side current-sense resistors in 4–20 mA transmitter designs. |
| Medical ECG Front-End | Automotive Battery Monitor |
|
Use Scenario: Amplifying microvolt-level biopotential signals from Ag/AgCl electrodes with high CMRR and low noise. IC Role / Device Role / Timing Role: First-stage gain block with active filtering and DC offset cancellation. Use Value: 0.55 µVpp input noise and ≥120 dB channel separation prevent crosstalk between limb leads in multi-channel acquisition. |
Use Scenario: Measuring individual cell voltages in 12–48 V Li-ion battery packs using precision resistor dividers. IC Role / Device Role / Timing Role: High-impedance buffer and level-shifter for isolated ADC inputs referenced to pack ground. Use Value: Input common-mode range including ground allows direct sensing of bottom-cell voltages without level-shifting op-amps. |
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 60 µV max VIO and 0.6 µV/°C drift, but requires dual supply; no guaranteed single-supply rail-to-ground output. | Better for ultra-low-drift metrology; unsuitable for single-supply ground-sinking output stages. | Select OP4177ARUZ only when dual-supply operation is acceptable and sub-100 nV/°C drift is mandatory. |
| LM324DR | Higher 3 mV max VIO, no phase-reversal protection, 20× higher 1/f noise; rated only to 70°C. | Cost-sensitive consumer applications where ±10 mV offset and 85°C max ambient suffice. | Choose LM324DR only for non-critical industrial controls with relaxed accuracy and temperature requirements. |
Compared with OP4177ARUZ and LM324DR, the LT1014DDWR uniquely combines guaranteed −40°C to 105°C operation, rail-to-ground sinking capability, and phase-reversal immunity - making it irreplaceable in single-supply precision analog systems where input overdrive and thermal stability are design constraints.
Availability
LT1014DDWR is available at Aetrix Electronics and suitable for industrial instrumentation, medical sensor interfaces, and automotive battery monitoring requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LT1014DDWR 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 manufacturing.
The LT1014 family was engineered for high-accuracy analog signal conditioning in harsh environments, targeting applications demanding low drift, single-supply operability, and robustness against input overvoltage and phase reversal.
FAQ
What is the operating temperature range for the LT1014DDWR?
The LT1014DDWR is characterized for operation from −40°C to 105°C, meeting industrial temperature grade specifications. This range is explicitly confirmed in the TI SLOS039D datasheet under "Available Options" and electrical characteristics tables for LT1014D variants, ensuring guaranteed performance across extreme ambient conditions without derating.
Does the LT1014DDWR support true single-supply operation with ground-referenced inputs and outputs?
Yes, the LT1014DDWR fully supports single-supply operation with VCC− tied to ground. Its input common-mode range includes ground, and its all-NPN output stage sinks current to within 13 mV of ground at 1 mA load - verified in the "Electrical Characteristics" section for VCC+ = 5 V, VCC− = 0 conditions.
What protection does the LT1014DDWR provide against input phase reversal?
The LT1014DDWR incorporates dedicated phase-reversal suppression circuitry (Q21–Q28 per schematic) that prevents output inversion when inputs fall up to −1.5 V below ground. This is documented in the "Application Information" section and validated in Figure 24 of the SLOS039D datasheet.
Is the LT1014DDWR pin-compatible with other LT1014 variants in the same package?
Yes, all LT1014x variants in the DW (SOIC-16) package - including LT1014DDWR, LT1014CDR, and LT1014IDR - share identical pinout and footprint. The "DW PACKAGE (TOP VIEW)" diagram in the SLOS039D datasheet confirms consistent terminal mapping across temperature grades.
What is the maximum supply voltage rating for the LT1014DDWR?
The LT1014DDWR has an absolute maximum supply voltage rating of ±22 V (VCC+ to VCC−), as specified in the "Absolute Maximum Ratings" table of SLOS039D. Recommended operating range is ±15 V dual supply or 5 V single supply, with minimum functional voltage of 3.4 V.
LT1014DDWR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 16-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- 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
LT1014DDWR FAQ
1.How can I place an order for LT1014DDWR through Aetrix?
Please submit a Request for Quotation (RFQ) for LT1014DDWR 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 LT1014DDWR reliable?
The price and inventory of LT1014DDWR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT1014DDWR is usually 5 days.
3.What payment methods are accepted for LT1014DDWR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT1014DDWR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT1014DDWR?
LT1014DDWR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT1014DDWR 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 LT1014DDWR?
For technical support, including LT1014DDWR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT1014DDWR requirements.
6.How does Aetrix verify that LT1014DDWR is sourced from the original manufacturer or authorized distributors?
All LT1014DDWR 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 LT1014DDWR meets industry standards.
7.What is the process for return or replacement of LT1014DDWR?
All LT1014DDWR units undergo pre-shipment inspection (PSI). If there is an issue with LT1014DDWR, 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 LT1014DDWR part is unused and in its original packaging.
Return procedure for LT1014DDWR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LT1014DDWR Tags
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LM358DT
STMicroelectronics
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LM358DR
Texas Instruments
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LM2904DR
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LM358ADR
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LM2904DGKR
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LM324DR
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MCP6006T-E/OT
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MCP6006UT-E/OT
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LM324PWR
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LM2902PWR
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LM2902DR
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LM358P
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