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Texas Instruments LT1013DMD
- Part No.:
- LT1013DMD
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LT1013DMD.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:996
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Product details
Overview
LT1013DMD from Texas Instruments is a dual precision operational amplifier in an 8-pin SOIC package, featuring 200 µV max input offset voltage (25°C), 0.5 mA max supply current per amplifier, and rail-to-rail output swing capability down to ground under sinking load. It operates from single 5-V or dual ±15-V supplies and is used in low-side current sensing and thermocouple signal conditioning circuits.
For engineers reviewing the LT1013DMD datasheet, LT1013DMD pinout, LT1013DMD application, or LT1013DMD equivalent, this page delivers verified specifications, functional pin mapping, real-world use cases, and validated alternative parts for precision analog signal conditioning in industrial and instrumentation systems.
Technical Context
The LT1013DMD integrates two matched high-gain op-amp cores with phase reversal protection and input common-mode range extending to VCC− (ground in single-supply mode). Its architecture supports stable operation with capacitive loads and eliminates crossover distortion via internal biasing.
It delivers 1 V/µV minimum large-signal voltage gain at 5-V supply with 500 Ω load, and maintains 97 dB minimum CMRR and 100 dB minimum PSRR across its −40°C to 105°C operating temperature range-enabling reliable DC-coupled amplification in noisy environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 5 V single or ±15 V dual - enables flexible power architecture in portable and industrial systems |
| Input Offset Voltage (25°C) | 200 µV max - ensures ≤0.5 mV error in 2.5 V full-scale 12-bit ADC front-end |
| Supply Current per Amplifier | 0.5 mA max - supports low-power battery-operated instrumentation with dual-channel operation |
| Output Swing (5 V, RL=600 Ω) | 0.35 V above ground min - allows direct interfacing to 3.3 V logic without level-shifting |
| Gain Bandwidth Product | 0.4 V/µs slew rate - sufficient for <10 kHz small-signal amplification with <1% distortion |
| Input Noise Voltage (1 kHz) | 22 nV/√Hz typical - preserves SNR in µV-level sensor signals like thermocouples |
| Common-Mode Rejection | 97 dB min - rejects >99.9% of 60 Hz interference in differential sensor measurements |
Pinout & Package
LT1013DMD uses an 8-pin SOIC (Small Outline Integrated Circuit) package measuring 4.90 mm × 3.91 mm, optimized for surface-mount assembly and thermal performance in compact PCB layouts.
| Pin | 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 inverted signal path |
| 3 | 1IN+ | Noninverting input of channel 1 - connects to reference, sensor, or signal source |
| 4 | VCC− | Negative supply terminal - tied to ground in single-supply configurations |
| 5 | 2OUT | Output of amplifier channel 2 - independent output for dual-channel signal processing |
| 6 | VCC+ | Positive supply terminal - accepts 5 V or +15 V depending on configuration |
| 7 | 2IN− | Inverting input of channel 2 - supports differential or inverting gain stages |
| 8 | 2IN+ | Noninverting input of channel 2 - enables parallel sensor conditioning or reference buffering |
Key Features
| Feature | Design Value |
|---|---|
| Single-supply operation | Input common-mode range includes ground and output swings to within 350 mV of ground - eliminates need for negative rail in low-voltage systems |
| Phase reversal protection | Prevents output latch-up when input exceeds supply rails - improves robustness in transient-prone industrial interfaces |
| Low input offset drift | 5 µV/°C max tempco - limits drift-induced error to <1 mV over 200°C ambient variation in uncalibrated systems |
| Low noise density | 0.55 µV peak-to-peak (0.1–10 Hz) - critical for high-resolution thermocouple and strain gauge amplification |
| High open-loop gain | 1 V/µV min at 5 V supply - ensures <0.1% gain error in unity-gain buffer and precision gain stages |
Applications
| Thermocouple Amplifiers | Low-Side Current Measurement |
|---|---|
|
Use Scenario: Amplifying µV-level EMF from Type-K thermocouples in furnace temperature monitoring systems. IC Role / Device Role / Timing Role: Precision DC-coupled instrumentation amplifier front-end with cold-junction compensation interface. Use Value: 200 µV max VIO and 0.55 µV PP noise enable resolution better than 0.5°C over 0–1000°C range without calibration. |
Use Scenario: Measuring motor phase current by amplifying voltage across 10 mΩ shunt resistor in 24 V industrial drives. IC Role / Device Role / Timing Role: Low-offset, rail-to-ground output amplifier for bidirectional current sensing with microcontroller ADC input. Use Value: Output swing to 350 mV above ground allows full 0–2.5 V ADC range utilization for ±10 A measurement with 12-bit accuracy. |
| Instrumentation Amplifiers | Medical Sensor Signal Conditioning |
|
Use Scenario: Building 3-op-amp INA topology for ECG electrode signal extraction in portable diagnostics. IC Role / Device Role / Timing Role: Dual-channel core for input buffers and output stage - matched pair minimizes gain/offset mismatch. Use Value: 120 dB channel separation and 97 dB CMRR suppress common-mode interference from 50/60 Hz mains coupling. |
Use Scenario: Conditioning weak bio-potential signals from EEG dry electrodes with high source impedance (>1 MΩ). IC Role / Device Role / Timing Role: High-input-impedance noninverting amplifier with ultra-low input bias current (<2 nA). Use Value: 0.8 nA max IIO prevents >1 mV error across 1 MΩ electrode impedance - preserving signal fidelity below 100 µV. |
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 GBW (8 MHz), but requires dual supply and lacks single-supply input range | Better for high-speed precision AC applications; unsuitable for ground-referenced sensor inputs | Select OP27GP only when dual ±15 V is available and bandwidth >100 kHz is required |
| TL072CDR | Higher VIO (10 mV max), lower cost, JFET input (50 pA IIB), but no guaranteed ground-swing output | Acceptable for AC-coupled audio or non-critical industrial feedback; not for DC-coupled µV sensors | Choose TL072CDR for cost-sensitive, AC-only designs where offset drift and noise are secondary |
Compared with OP27GP and TL072CDR, LT1013DMD uniquely balances single-supply usability, sub-millivolt DC accuracy, and low-noise performance - making it the preferred choice for battery-powered or ground-referenced precision analog front-ends where layout space and supply simplicity matter.
Availability
LT1013DMD 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 LT1013DMD 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 LT1013x family was engineered for high-accuracy DC signal conditioning in harsh environments - targeting industrial process control, test equipment, and medical instrumentation where long-term stability and low drift are mandatory.
FAQ
What is the maximum operating temperature range for LT1013DMD?
The LT1013DMD is characterized for operation from −40°C to 105°C, matching the LT1013DI grade. This extended range supports deployment in automotive engine compartments, industrial PLC modules, and outdoor environmental monitoring hardware where ambient temperatures exceed standard commercial limits.
Does LT1013DMD support true rail-to-rail output?
LT1013DMD does not achieve rail-to-rail output swing - its output can swing to within 350 mV of ground (VCC−) when sinking 1 mA, and to within 0.6 V of VCC+ under load. This "near-rail" capability enables ground-referenced operation without negative supply, unlike older op-amps that require ≥1.5 V headroom.
Can LT1013DMD be used with a single 3.3 V supply?
No - the LT1013DMD's recommended supply voltage range is 5 V to 30 V total (i.e., 5 V single or ±15 V dual). Operation below 5 V violates the Absolute Maximum Ratings and results in undefined performance, including degraded output swing, increased offset, and potential instability.
How does LT1013DMD compare to LT1013AM in precision performance?
LT1013DMD specifies 200 µV max input offset voltage at 25°C, while LT1013AM guarantees 150 µV max. The AM version also offers tighter 2 µV/°C max tempco vs. DMD's 5 µV/°C, and lower 0.8 nA max IIO. These differences make LT1013AM preferable for metrology-grade applications, whereas LT1013DMD targets high-value industrial precision at lower cost.
Is LT1013DMD pin-compatible with other LT1013 variants?
Yes - all LT1013x variants in SOIC-8 (including LT1013D, LT1013DI, and LT1013DM) share identical pinout and footprint. This allows drop-in replacement across temperature grades without PCB redesign, provided the system's thermal and electrical requirements align with the selected variant's specifications.
LT1013DMD Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- 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
LT1013DMD FAQ
1.How can I place an order for LT1013DMD through Aetrix?
Please submit a Request for Quotation (RFQ) for LT1013DMD 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 LT1013DMD reliable?
The price and inventory of LT1013DMD are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT1013DMD is usually 5 days.
3.What payment methods are accepted for LT1013DMD?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT1013DMD transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT1013DMD?
LT1013DMD orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT1013DMD 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 LT1013DMD?
For technical support, including LT1013DMD datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT1013DMD requirements.
6.How does Aetrix verify that LT1013DMD is sourced from the original manufacturer or authorized distributors?
All LT1013DMD 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 LT1013DMD meets industry standards.
7.What is the process for return or replacement of LT1013DMD?
All LT1013DMD units undergo pre-shipment inspection (PSI). If there is an issue with LT1013DMD, 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 LT1013DMD part is unused and in its original packaging.
Return procedure for LT1013DMD:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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