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Texas Instruments LT1013DDR
- Part No.:
- LT1013DDR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LT1013DDR.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,768
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Product details
Overview
LT1013DDR from Texas Instruments is a dual precision operational amplifier optimized for low-offset, low-drift, and single-supply operation. It features 150 µV max input offset voltage (25°C), 2 µV/°C max offset temperature coefficient, 0.5 mA max supply current per amplifier, and rail-to-rail output swing capability down to ground when sinking current. It is widely used in thermocouple amplification and low-side current sensing circuits requiring high DC accuracy.
For engineers reviewing the LT1013DDR datasheet, LT1013DDR pinout, LT1013DDR application, or LT1013DDR equivalent, key selection criteria include input offset voltage stability over temperature, single-5V supply compatibility with ground-referenced inputs/outputs, noise performance (0.55 µVPP, 0.07 pA/√Hz), and guaranteed operation across –40°C to 105°C.
Technical Context
The LT1013DDR implements a bipolar input stage with phase reversal protection and crossover distortion elimination. Its architecture supports both single-supply (5 V) and dual-supply (±15 V) operation while maintaining full common-mode input range to ground and output swing to within millivolts of ground under load.
It delivers 1.5 V/µV minimum large-signal voltage gain (RL = 2 kΩ) and achieves 114 dB typical CMRR at 25°C. The device uses matched transistor pairs and laser-trimmed resistors to ensure low long-term drift (0.4 µV/month) and stable performance across military-grade temperature extremes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage | 150 µV max at 25°C - enables sub-mV DC error in precision sensor front-ends |
| Offset Tempco | 2 µV/°C max - ensures <1 mV total drift over –40°C to 105°C operating range |
| Supply Current | 0.5 mA max per amplifier - supports low-power battery-operated instrumentation |
| Output Swing | Swings to ground while sinking current - allows true single-supply signal conditioning with 0 V reference |
| Gain Bandwidth | 0.4 V/µs slew rate - sufficient for DC-critical applications up to ~100 kHz closed-loop bandwidth |
| Input Noise | 0.55 µVPP (0.1–10 Hz), 22 nV/√Hz @ 1 kHz - preserves SNR in µV-level thermocouple signals |
| CMRR | 97 dB min - rejects common-mode interference in noisy industrial environments |
Pinout & Package
LT1013DDR is housed in an 8-pin SOIC (D) package measuring 4.90 mm × 3.91 mm, with standard JEDEC MS-012AC footprint and gull-wing leads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | 1OUT | Amplifier 1 output - drives feedback network or next-stage input; capable of sourcing/sinking 1 mA |
| 2 | 1IN− | Inverting input for channel 1 - connects to feedback resistor in inverting configuration or reference node |
| 3 | 1IN+ | Noninverting input for channel 1 - accepts grounded or referenced sensor signals in single-supply mode |
| 4 | VCC− | Negative supply terminal - tied to ground in single-5V operation; enables true ground-referenced input common-mode range |
| 5 | 2OUT | Amplifier 2 output - independent output for dual-channel signal paths (e.g., differential pair or dual sensor channels) |
| 6 | VCC+ | Positive supply terminal - accepts 5 V (single) or +15 V (dual); supports wide supply range (5–30 V) |
| 7 | 2IN− | Inverting input for channel 2 - electrically isolated from channel 1; shares same supply rails and thermal environment |
| 8 | 2IN+ | Noninverting input for channel 2 - identical electrical characteristics to pin 3; enables matched dual-channel designs |
Key Features
| Feature | Design Value |
|---|---|
| Single-supply operation | Input common-mode range extends to VCC− (ground), enabling direct interfacing with 0-V referenced sensors |
| Phase reversal protection | Prevents output latch-up during input overvoltage events - critical for robustness in industrial transducer interfaces |
| Low peak-to-peak noise | 0.55 µVPP (0.1–10 Hz) - minimizes baseline drift in high-gain thermocouple amplifiers |
| High open-loop gain | 1.5 V/µV min (RL = 2 kΩ) - ensures <0.001% gain error in precision closed-loop configurations |
| Low current noise | 0.07 pA/√Hz - preserves signal integrity in high-impedance source applications (e.g., pH electrodes) |
Applications
| Thermocouple Amplifiers | Low-Side Current Measurement |
|---|---|
Use Scenario: Amplifying µV-level Seebeck voltages from Type-K/J thermocouples with cold-junction compensation. IC Role / Device Role / Timing Role: Precision DC-coupled gain stage with ground-referenced input and output, rejecting thermocouple lead noise via high CMRR. Use Value: Enables ±1°C measurement accuracy over –40°C to 105°C ambient without external chopper stabilization. | Use Scenario: Measuring load current by amplifying voltage across a shunt resistor placed between load and ground. IC Role / Device Role / Timing Role: Single-supply difference amplifier with input common-mode at ground potential and rail-to-ground output swing. Use Value: Eliminates need for level-shifting circuitry or negative supply, reducing BOM count and PCB area in motor control and power management. |
| Instrumentation Amplifiers | Medical Sensor Signal Conditioning |
Use Scenario: Serving as input stage in 3-op-amp IA topology for ECG or strain gauge bridges. IC Role / Device Role / Timing Role: Matched dual amplifier providing high-input-impedance, low-drift buffering of bridge outputs before differential gain. Use Value: Laser-trimmed offset and tempco ensure <5 µV total input-referred drift over medical operating temperature range. | Use Scenario: Conditioning weak bio-potential signals (e.g., EEG, EMG) with ultra-low noise and DC stability. IC Role / Device Role / Timing Role: First-stage preamplifier with low 1/f noise and high PSRR to reject power supply ripple in battery-powered devices. Use Value: 0.07 pA/√Hz current noise prevents degradation of signal integrity from high-impedance dry electrodes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual precision op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OP27GP | Higher speed (2.8 V/µs), lower noise (3.5 nV/√Hz), but no single-supply ground-swing capability and higher quiescent current (1.2 mA) | Preferred in high-speed precision systems where rail-to-rail output is not required and dual supplies are available | Select OP27GP only when bandwidth >1 MHz and noise <5 nV/√Hz are mandatory; avoid for single-supply ground-referenced designs |
| AD8628ARZ | Zero-drift architecture, 1 µV max offset, 0.002 µV/°C tempco, but limited output drive (15 mA) and 5.5 V max supply | Better for ultra-low-offset DC applications like precision weigh scales, but incompatible with 30 V dual-supply operation | Choose AD8628ARZ when sub-µV offset and near-zero drift dominate requirements; verify supply voltage compatibility |
Compared with OP27GP and AD8628ARZ, LT1013DDR uniquely balances ground-swing single-supply operation, military-grade temperature range (–40°C to 105°C), and proven long-term stability - making it optimal for cost-sensitive industrial instrumentation where 100-kHz bandwidth suffices.
Availability
LT1013DDR is available at Aetrix Electronics and suitable for thermocouple amplifiers, low-side current measurement, and instrumentation amplifiers requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LT1013DDR 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 company specializing in analog and embedded processing technologies, with leadership in precision analog ICs for industrial, automotive, and medical applications.
The LT1013x family was designed specifically for high-accuracy DC signal conditioning in harsh environments - emphasizing low offset drift, single-supply usability, and reliability across military temperature ranges.
FAQ
What is the maximum operating temperature range for the LT1013DDR?
The LT1013DDR is characterized for operation from –40°C to 105°C, matching the LT1013DI grade. This extended industrial temperature range ensures reliable performance in demanding environments such as motor drives, factory automation, and outdoor instrumentation where ambient temperatures exceed commercial limits. The LT1013DDR maintains specified offset voltage, gain, and noise performance across this full range.
Does the LT1013DDR support true single-supply operation with input and output referenced to ground?
Yes, the LT1013DDR supports true single-supply operation: its input common-mode voltage range extends to VCC− (ground), and its output can swing to within millivolts of ground while sinking current. This eliminates the need for level-shifting or negative supplies in applications like low-side current sensing and thermocouple amplification, simplifying system design and reducing component count.
What is the typical input offset voltage and temperature coefficient for the LT1013DDR?
The LT1013DDR has a maximum input offset voltage of 150 µV at 25°C and a maximum offset temperature coefficient of 2 µV/°C. These specifications are guaranteed per the LT1013DI characterization, ensuring predictable DC error accumulation over temperature - critical for applications requiring long-term calibration stability without active trimming.
Can the LT1013DDR be used in dual-supply configurations?
Yes, the LT1013DDR operates reliably with dual supplies up to ±15 V. Its absolute maximum supply voltage is 44 V (VCC+ − VCC−), and recommended operating conditions include ±15 V. In dual-supply mode, it retains high CMRR (97 dB min), PSRR (97 dB min), and output swing (±12 V into 2 kΩ), making it suitable for legacy industrial systems and test equipment requiring symmetric rails.
How does the LT1013DDR compare to the LT1013AM in precision performance?
The LT1013AM offers tighter specifications: 40 µV max offset (25°C) and 0.4 µV/°C max tempco versus LT1013DDR's 150 µV and 2 µV/°C. However, LT1013DDR provides identical package (SOIC-8), pinout, and functional compatibility while meeting industrial-grade reliability at lower cost - making it the preferred choice when 150 µV offset is acceptable and extended temperature operation is required.
LT1013DDR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- -
- Slew Rate:
- 0.4V/µs
- Gain Bandwidth Product:
- 1 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 18 nA
- Voltage - Input Offset:
- 90 µV
- Current - Supply:
- 320µA (x2 Channels)
- Current - Output / Channel:
- -
- Voltage - Supply Span (Min):
- 5 V
- Voltage - Supply Span (Max):
- 30 V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
LT1013DDR FAQ
1.How can I place an order for LT1013DDR through Aetrix?
Please submit a Request for Quotation (RFQ) for LT1013DDR 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 LT1013DDR reliable?
The price and inventory of LT1013DDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT1013DDR is usually 5 days.
3.What payment methods are accepted for LT1013DDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT1013DDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT1013DDR?
LT1013DDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT1013DDR 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 LT1013DDR?
For technical support, including LT1013DDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT1013DDR requirements.
6.How does Aetrix verify that LT1013DDR is sourced from the original manufacturer or authorized distributors?
All LT1013DDR 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 LT1013DDR meets industry standards.
7.What is the process for return or replacement of LT1013DDR?
All LT1013DDR units undergo pre-shipment inspection (PSI). If there is an issue with LT1013DDR, 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 LT1013DDR part is unused and in its original packaging.
Return procedure for LT1013DDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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