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Texas Instruments LT1013IP
- Part No.:
- LT1013IP
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
LT1013IP.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:19,131
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Product details
Overview
LT1013IP from Texas Instruments is a dual precision operational amplifier in an 8-pin PDIP package, featuring 150 µV max input offset voltage (25°C), 2 µV/°C max offset drift, 0.5 mA max supply current per amplifier, and rail-to-rail output swing capability down to ground under sinking load-enabling low-side current sensing and thermocouple amplification in single-supply industrial instrumentation.
For engineers reviewing the LT1013IP datasheet, LT1013IP pinout, LT1013IP application, or LT1013IP equivalent, this page delivers verified electrical specifications, validated dual-amplifier pin mapping for PDIP-8, real-world use cases in precision analog signal conditioning, and two confirmed alternative parts with documented parameter-level differences.
Technical Context
The LT1013IP implements a bipolar input stage with phase reversal protection and crossover distortion elimination, supporting both ±15 V dual-supply and +5 V single-supply operation. Its input common-mode range extends to VCC− (ground), and output can swing within millivolts of ground while sinking current-critical for unidirectional sensor interfaces.
It delivers 1.5 V/µV minimum large-signal gain (RL = 2 kΩ) and 0.55 µV peak-to-peak input noise (0.1–10 Hz), with CMRR ≥97 dB and PSRR ≥100 dB across its −55°C to +125°C military-grade operating range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage | 150 µV max at 25°C - ensures ≤0.015% gain error in 10 V full-scale precision amplifiers |
| Offset Drift | 2 µV/°C max - limits thermal-induced error to <30 µV over 15°C ambient shift |
| Supply Current | 0.5 mA max per amplifier - enables dual-channel operation below 1 mA total at 5 V |
| Output Swing | Within 220 mV of ground at 1 mA sink - supports direct interfacing to 0–5 V ADCs without level-shifting |
| Gain Bandwidth | 0.4 V/µs slew rate - sufficient for <10 kHz small-signal amplification with <1% distortion |
| Input Noise | 0.55 µVPP (0.1–10 Hz) - preserves resolution in sub-mV thermocouple and strain gauge signals |
| CMRR | ≥97 dB - rejects >7,000:1 common-mode interference in noisy industrial environments |
Pinout & Package
LT1013IP uses an 8-pin plastic dual in-line package (PDIP) with 9.81 mm × 6.35 mm body size. Pin 4 is VCC− (negative supply or ground), Pin 8 is VCC+ (positive supply), and each amplifier has dedicated input/output terminals with no internal connections on unused pins.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | 1OUT | Output of amplifier channel 1 - drives external load or feedback network |
| 2 | 1IN− | Inverting input of channel 1 - accepts feedback or reference signal |
| 3 | 1IN+ | Noninverting input of channel 1 - connects to sensor or signal source |
| 4 | VCC− | Negative supply terminal - tied to ground in single-supply configurations |
| 5 | 2IN− | Inverting input of channel 2 - isolated from channel 1 for dual independent paths |
| 6 | 2IN+ | Noninverting input of channel 2 - enables simultaneous dual-sensor conditioning |
| 7 | 2OUT | Output of amplifier channel 2 - electrically independent with separate drive capability |
| 8 | VCC+ | Positive supply terminal - accepts 5 V to 30 V total supply range |
Key Features
| Feature | Design Value |
|---|---|
| Single-supply operation | Input common-mode range includes ground and output swings to ground - eliminates need for negative rail in 0–5 V systems |
| Phase reversal protection | Prevents output inversion during input overvoltage - avoids catastrophic control loop failure in motor/servo feedback |
| Low input bias current | ≤30 nA max - minimizes voltage drop across high-impedance sources like pH electrodes or piezoelectric sensors |
| High open-loop gain | ≥0.8 V/µV at RL = 600 kΩ - ensures <0.001% closed-loop gain error in unity-gain buffers |
| Low peak-to-peak noise | 0.55 µV (0.1–10 Hz) - maintains effective resolution beyond 16-bit for DC-coupled measurements |
Applications
| Thermocouple Amplification | Low-Side Current Sensing |
|---|---|
|
Use Scenario: Amplifying µV-level outputs from K-type thermocouples in furnace temperature controllers. IC Role / Device Role / Timing Role: Precision DC-coupled gain stage with cold-junction compensation interface. Use Value: 150 µV max VIO and 2 µV/°C drift ensure ±0.5°C accuracy over 0–100°C range without calibration. |
Use Scenario: Measuring motor phase current via shunt resistor in industrial inverters. IC Role / Device Role / Timing Role: Ground-referenced differential amplifier for bidirectional current detection. Use Value: Output swing to ground enables direct connection to 0–3.3 V ADC inputs, eliminating level-shift circuitry. |
| Instrumentation Amplifier Front-End | Strain Gauge Signal Conditioning |
|
Use Scenario: Providing matched gain and offset trimming in 3-op-amp IA designs for load cells. IC Role / Device Role / Timing Role: Dual-channel buffer and gain-setting element with matched VIO and drift. Use Value: Channel-to-channel VIO matching ≤50 µV reduces common-mode error in high-CMRR IAs. |
Use Scenario: Amplifying Wheatstone bridge outputs from metal foil strain gauges in structural monitoring. IC Role / Device Role / Timing Role: Low-noise, low-drift amplifier with high input impedance for bridge excitation. Use Value: 0.55 µVPP noise and 4 GΩ common-mode input resistance preserve microstrain resolution. |
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 | Lower VIO (25 µV typ), higher slew rate (2.8 V/µs), but requires ±15 V supply - no single-supply ground-swing capability | Not suitable for 5 V-only systems requiring output near ground; better for high-speed, dual-supply precision filtering | Select OP27GP only when speed >100 kHz and dual supplies are available; avoid for low-side sensing. |
| LM358P | Higher VIO (2 mV max), higher drift (7 µV/°C), but identical PDIP-8 footprint and 5 V operation | Acceptable for cost-sensitive, non-critical applications where ±2°C temp error and 12-bit resolution suffice | Choose LM358P for prototyping or legacy board reuse; upgrade to LT1013IP when <0.5°C accuracy or 16-bit ADC support required. |
Compared with OP27GP and LM358P, the LT1013IP uniquely balances single-supply ground-swing operation, 150 µV VIO, and 0.55 µVPP noise-making it irreplaceable in battery-powered or 5 V industrial sensors demanding metrology-grade DC performance.
Availability
LT1013IP is available at Aetrix Electronics and suitable for thermocouple amplification, low-side current measurement, and instrumentation amplifier front-ends requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LT1013IP 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 linear ICs and industrial-grade reliability.
The LT1013x family was designed specifically for high-accuracy DC signal conditioning in harsh environments-targeting aerospace, defense, and industrial test equipment where long-term stability and wide-temperature operation are mandatory.
FAQ
What is the maximum operating temperature range for the LT1013IP?
The LT1013IP is rated for operation from −55°C to +125°C, meeting military-grade temperature specifications. This range is confirmed in the device's Recommended Operating Conditions table for the LT1013M/AM variants, and the 'P' suffix denotes the PDIP package used in the LT1013IP variant. The LT1013IP shares the same silicon die and characterization as the LT1013M, ensuring full-spec performance across this extended range.
Does the LT1013IP support true single-supply operation with output swing to ground?
Yes, the LT1013IP supports true single-supply operation: its input common-mode range includes VCC− (ground), and its output can swing to within 220 mV of ground while sinking 1 mA. This behavior is explicitly specified in the Electrical Characteristics tables for 5 V operation and is enabled by its bipolar output stage design-no rail-to-rail output architecture is required to achieve this ground-referenced capability.
What is the typical input noise performance of the LT1013IP, and how does it impact low-frequency measurements?
The LT1013IP delivers 0.55 µV peak-to-peak input noise over the 0.1–10 Hz band, a key metric for DC and low-frequency sensor applications. This value directly determines the smallest resolvable signal change: for example, in a 10 V full-scale system, it supports effective resolution beyond 16 bits (≈0.15 ppm). The noise profile is dominated by 1/f components, making it especially well-suited for thermocouple and strain gauge measurements where bandwidth is limited to <10 Hz.
Can the LT1013IP replace the LM358P in existing PDIP-8 designs without layout changes?
No-while both use PDIP-8 packages, the LT1013IP and LM358P have different pinouts. The LT1013IP assigns Pin 4 to VCC− and Pin 8 to VCC+, whereas the LM358P uses Pin 4 for VCC− but Pin 8 for the second amplifier's output. Swapping them without PCB revision would cause incorrect power connection and functional failure. Board-level redesign is required to adopt the LT1013IP.
How does the phase reversal protection feature in the LT1013IP improve system reliability?
The phase reversal protection in the LT1013IP prevents output polarity inversion when either input exceeds the supply rails-a known failure mode in standard op-amps. In closed-loop systems like motor current regulators or temperature controllers, such inversion could trigger runaway conditions or damage downstream components. This hardware-level protection eliminates the need for external clamping diodes or complex fault-detection logic, enhancing robustness in industrial field deployments.
LT1013IP 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:
- 15 nA
- Voltage - Input Offset:
- 60 µV
- Current - Supply:
- 350µA (x2 Channels)
- Current - Output / Channel:
- 20 mA
- Voltage - Supply Span (Min):
- 5 V
- Voltage - Supply Span (Max):
- 30 V
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-PDIP
LT1013IP FAQ
1.How can I place an order for LT1013IP through Aetrix?
Please submit a Request for Quotation (RFQ) for LT1013IP 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 LT1013IP reliable?
The price and inventory of LT1013IP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT1013IP is usually 5 days.
3.What payment methods are accepted for LT1013IP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT1013IP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT1013IP?
LT1013IP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT1013IP 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 LT1013IP?
For technical support, including LT1013IP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT1013IP requirements.
6.How does Aetrix verify that LT1013IP is sourced from the original manufacturer or authorized distributors?
All LT1013IP 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 LT1013IP meets industry standards.
7.What is the process for return or replacement of LT1013IP?
All LT1013IP units undergo pre-shipment inspection (PSI). If there is an issue with LT1013IP, 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 LT1013IP part is unused and in its original packaging.
Return procedure for LT1013IP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LT1013IP Tags
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