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Texas Instruments LT1013DP
- Part No.:
- LT1013DP
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
LT1013DP.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:363
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Product details
Overview
LT1013DP from Texas Instruments is a dual precision operational amplifier in an 8-pin PDIP package, featuring 150 µV max input offset voltage (LT1013AM grade), 2 µV/°C max offset drift, 0.5 mA max supply current per amplifier, and rail-to-rail output swing capability near ground under sinking load-enabling low-side current sensing and thermocouple amplification in industrial instrumentation.
For engineers reviewing the LT1013DP datasheet, LT1013DP pinout, LT1013DP application, or LT1013DP equivalent, this page delivers verified electrical specifications, validated dual-channel pin mapping for PDIP-8, real-world use cases in precision analog front-ends, and two confirmed alternative parts with documented functional trade-offs.
Technical Context
The LT1013DP implements a bipolar input stage with matched transistor pairs to achieve low input offset voltage and drift. Its architecture supports single-supply operation down to 5 V with common-mode input range extending to VCC– (ground), and output swing within millivolts of ground when sinking current-critical for unipolar sensor interfaces.
It features phase reversal protection to prevent output inversion during input overdrive, and achieves 114 dB typical CMRR and 117 dB kSVR at ±15 V, ensuring stable closed-loop gain in noisy industrial environments where supply ripple and common-mode transients are present.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage | 150 µV max (LT1013AM grade at 25°C) - enables sub-1 mV error in 10 V full-scale measurement systems |
| Offset Tempco | 2 µV/°C max - limits drift to ≤20 µV over 10°C ambient change, critical for uncalibrated temperature-sensitive circuits |
| Supply Current | 0.5 mA max per amplifier - allows dual op-amp operation below 1 mA total, suitable for low-power portable instrumentation |
| Output Swing | Swings to ground while sinking current - supports true zero-output capability in low-side current shunt monitors without level-shifting |
| Gain Bandwidth | 1.5 V/µV min (0.8 V/µV at 600 kΩ load) - provides ≥1.2 MHz unity-gain bandwidth for stable DC-coupled signal conditioning |
| Input Noise | 0.55 µV p-p (0.1–10 Hz), 22 nV/√Hz @1 kHz - preserves signal integrity in µV-level thermocouple and strain gauge amplifiers |
| CMRR | 114 dB typical - rejects >500 kV/V of common-mode interference, essential for high-impedance sensor nodes |
Pinout & Package
LT1013DP uses an 8-pin plastic dual in-line package (PDIP) with 9.81 mm × 6.35 mm body size and 0.3 inch lead spacing. Pin 1 is located at the left end of the top row when viewed from the top with notch or dot oriented left.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | 1OUT | Output of amplifier channel 1 - drives feedback network or next-stage input; capable of sourcing/sinking ≥1 mA |
| 2 | 1IN− | Inverting input of channel 1 - connects to feedback resistor in inverting configuration or reference node in differential setup |
| 3 | 1IN+ | Noninverting input of channel 1 - accepts high-impedance sensor signals (e.g., thermocouple, bridge) with minimal loading |
| 4 | VCC− | Negative supply terminal - tied to ground in single-supply mode; must be decoupled with 0.1 µF ceramic capacitor |
| 5 | 2IN− | Inverting input of channel 2 - isolated from channel 1 for independent dual-signal processing (e.g., dual sensor channels) |
| 6 | VCC+ | Positive supply terminal - accepts 5 V to 30 V total supply range; requires local 0.1 µF bypass to VCC− |
| 7 | 2OUT | Output of amplifier channel 2 - electrically isolated from channel 1 output; shares same supply rails but no internal crosstalk |
| 8 | 2IN+ | Noninverting input of channel 2 - supports simultaneous dual-input conditioning without shared reference path interference |
Key Features
| Feature | Design Value |
|---|---|
| Single-supply operation | Operates from 5 V supply with input common-mode range including ground and output swing to ground - eliminates need for negative rail in battery-powered sensors |
| Phase reversal protection | Prevents output inversion when input exceeds supply rails - avoids catastrophic control loop errors in motor driver feedback or safety-critical monitoring |
| Low peak-to-peak noise | 0.55 µV p-p (0.1–10 Hz) - enables resolution of <1 µV signals in 1-second integration windows for precision weigh scales |
| High open-loop gain | 1.5 V/µV minimum (RL = 2 kΩ) - ensures <0.001% gain error in unity-gain buffers driving 2 kΩ loads |
| Low input bias current | −30 nA max (full temp range) - reduces voltage error across 1 MΩ source impedances to <30 mV, preserving accuracy in photodiode amps |
Applications
| Thermocouple Amplifier | Low-Side Current Measurement |
|---|---|
Use Scenario: Amplifying µV-level EMF from Type-K thermocouples in industrial ovens with ambient temperatures up to 70°C. IC Role / Device Role / Timing Role: Precision DC-coupled first-stage amplifier with cold-junction compensation interface and gain-setting resistors. Use Value: 150 µV max VIO and 2 µV/°C drift ensure <±1.5°C absolute accuracy without calibration over 0–100°C range. | Use Scenario: Monitoring motor phase current via 10 mΩ shunt resistor in 24 V DC drive systems. IC Role / Device Role / Timing Role: Low-offset, ground-swinging difference amplifier converting shunt voltage to 0–3.3 V ADC input. Use Value: Output swing to ground enables direct interfacing with 3.3 V SAR ADCs; 0.5 mA supply current minimizes self-heating error in sealed enclosures. |
| Instrumentation Amplifier Front-End | Strain Gauge Signal Conditioning |
Use Scenario: Building 3-op-amp IA for medical ECG front-end requiring high CMRR and low noise. IC Role / Device Role / Timing Role: Dual-channel core providing matched gain stages for RFI filtering and buffer isolation before final diff-amp stage. Use Value: 114 dB CMRR and 137 dB channel separation prevent cross-talk between differential inputs, maintaining >100 dB effective CMRR in final IA topology. | Use Scenario: Reading quarter-bridge strain gauges in structural health monitoring nodes powered by Li-ion batteries. IC Role / Device Role / Timing Role: Low-noise, low-drift amplifier with excitation buffering and ratiometric output scaling. Use Value: 22 nV/√Hz input noise preserves microstrain resolution; 0.5 mA per amp extends battery life beyond 5 years in sleep-wake telemetry systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual precision operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OP27GP | Higher speed (2.8 V/µs slew rate), lower noise (3.5 nV/√Hz), but no single-supply ground-swing output capability | Requires dual ±15 V supplies; unsuitable for low-side shunt monitoring without level-shifting circuitry | Select OP27GP only when bandwidth >1 MHz and noise <5 nV/√Hz are required, and dual supply is available |
| TL082CP | JFET input (50 pA IB), higher VIO (10 mV max), no guaranteed ground-swing output or phase reversal protection | Limited to non-critical AC-coupled or high-source-impedance applications; not recommended for precision DC measurements | Choose TL082CP only for cost-sensitive, non-precision designs where input bias current matters more than offset or noise |
Compared with OP27GP and TL082CP, LT1013DP uniquely combines ground-swing output, phase reversal protection, and 150 µV VIO in a PDIP package-making it irreplaceable for single-supply, low-drift, low-side sensing where output headroom and reliability are design-critical.
Availability
LT1013DP is available at Aetrix Electronics and suitable for industrial instrumentation, precision sensor interfaces, and legacy system replacements requiring stable component supply with long-term traceability and military-grade temperature screening options.
Supply support for LT1013DP 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 headquartered in Dallas, Texas, designing and manufacturing analog ICs, embedded processors, and digital signal solutions for industrial, automotive, and communications markets.
The LT1013x series was developed to deliver precision op-amp performance in legacy through-hole packages for aerospace, defense, and industrial control systems requiring proven reliability and extended temperature operation.
FAQ
What is the maximum operating temperature range for the LT1013DP?
The LT1013DP is characterized for operation from 0°C to 70°C, matching the commercial-grade LT1013C/LT1013D specification. It is not rated for extended temperature ranges like the LT1013M (–55°C to 125°C) or LT1013DI (–40°C to 105°C). For designs requiring wider thermal margins, the LT1013DM or LT1013AM in PDIP should be evaluated, though LT1013DP itself remains strictly 0°C–70°C.
Does the LT1013DP support true rail-to-rail input and output operation?
The LT1013DP supports rail-to-rail output swing only on the low side - its output can swing to within millivolts of VCC− (ground) while sinking current, but cannot reach VCC+ (e.g., +5 V) under load. Input common-mode range extends to VCC− but stops ~2 V below VCC+, so it is not rail-to-rail on either port. This makes it ideal for single-supply low-side sensing but unsuitable for full-swing AC coupling.
Can the LT1013DP be used with a single 3.3 V supply?
No - the LT1013DP requires a minimum total supply voltage of 5 V (VCC+ − VCC− ≥ 5 V) per the Recommended Operating Conditions table. At 3.3 V, the internal circuitry fails to bias correctly, resulting in undefined output behavior, excessive offset, and potential phase reversal. Valid single-supply configurations include 5 V (VCC+ = 5 V, VCC− = 0 V) or higher, up to 30 V total.
Is the LT1013DP pin-compatible with other dual op-amps in PDIP-8 packages?
Yes - the LT1013DP follows the industry-standard dual op-amp pinout for PDIP-8: Pin 1 = OUT A, Pin 2 = −IN A, Pin 3 = +IN A, Pin 4 = V−, Pin 5 = −IN B, Pin 6 = V+, Pin 7 = OUT B, Pin 8 = +IN B. This matches LM358, TL082, and OP27GP in PDIP-8, enabling drop-in replacement where electrical specs align - though functional equivalence must be verified per application.
What is the typical input bias current of the LT1013DP at 25°C?
The typical input bias current of the LT1013DP at 25°C is –20 nA (per input), based on the LT1013D specification table. The maximum value across the full 0°C to 70°C range is –38 nA. This bipolar input stage bias current is significantly higher than JFET or CMOS op-amps but enables lower voltage noise and better DC precision in low-impedance sensor interfaces.
LT1013DP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Packaging:
- Bulk
- 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:
- Through Hole
- Supplier Device Package:
- 8-PDIP
LT1013DP FAQ
1.How can I place an order for LT1013DP through Aetrix?
Please submit a Request for Quotation (RFQ) for LT1013DP 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 LT1013DP reliable?
The price and inventory of LT1013DP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT1013DP is usually 5 days.
3.What payment methods are accepted for LT1013DP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT1013DP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT1013DP?
LT1013DP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT1013DP 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 LT1013DP?
For technical support, including LT1013DP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT1013DP requirements.
6.How does Aetrix verify that LT1013DP is sourced from the original manufacturer or authorized distributors?
All LT1013DP 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 LT1013DP meets industry standards.
7.What is the process for return or replacement of LT1013DP?
All LT1013DP units undergo pre-shipment inspection (PSI). If there is an issue with LT1013DP, 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 LT1013DP part is unused and in its original packaging.
Return procedure for LT1013DP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LT1013DP Tags
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