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Texas Instruments LT1013DMDG4
- Part No.:
- LT1013DMDG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LT1013DMDG4.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,181
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Product details
Overview
LT1013DMDG4 from Texas Instruments is a dual precision operational amplifier optimized for single-supply operation with rail-to-rail input (down to ground) and output swing to ground while sinking current. It delivers 0.5 mA max supply current per amplifier, 150 µV max input offset voltage (at 25°C), 2 µV/°C max offset drift, and 0.55 µV peak-to-peak input noise - enabling high-accuracy signal conditioning in low-voltage industrial sensor interfaces.
For engineers reviewing the LT1013DMDG4 datasheet, LT1013DMDG4 pinout, LT1013DMDG4 application, or LT1013DMDG4 equivalent, this page provides verified specifications, SOIC-8 package layout, real-world use cases in thermocouple amplification and low-side current sensing, and validated alternative options for precision op-amp selection.
Technical Context
The LT1013DMDG4 implements a bipolar-input, internally compensated two-stage transconductance amplifier architecture with phase reversal protection and crossover distortion elimination. Its input stage supports common-mode voltage down to VCC– (ground in single-supply mode), and its output stage drives loads to within millivolts of ground while sinking current - critical for unipolar signal chains.
It operates across ±15 V dual supplies or 5 V single supply (VCC+ = 5 V, VCC– = 0 V), with guaranteed performance over 0°C to 70°C ambient temperature. Electrical characteristics are specified separately for ±15 V and 5 V conditions, including distinct common-mode input range (0 V to 3.5 V at 25°C, 5 V supply) and output swing limits (e.g., 220–350 mV low-level output with 1 mA sink).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 5 V to 30 V total (±15 V dual or 5 V single); enables direct interface with 3.3 V/5 V microcontrollers and ADCs without level-shifting. |
| Input Offset Voltage (25°C) | 250–950 µV max (5 V supply); ensures ≤1 mV error in 10-bit 5 V full-scale systems with gain ≤4. |
| Offset Temperature Drift | 0.7–5 µV/°C max; contributes ≤0.5 mV error over 0°C–70°C industrial range at typical gain settings. |
| Supply Current per Amplifier | 0.32–0.5 mA typical (5 V supply); supports battery-powered instrumentation with <1 mW per channel. |
| Peak-to-Peak Input Noise (0.1–10 Hz) | 0.55 µV typical; preserves resolution in DC-coupled thermocouple and strain gauge amplifiers. |
| Common-Mode Input Range (5 V) | 0 V to 3.5 V at 25°C; allows direct connection of grounded-sensor outputs (e.g., RTDs, current shunts) without biasing resistors. |
| Output Low Voltage (1 mA sink) | 220–350 mV at 25°C (5 V supply); guarantees logic-low compatibility with 3.3 V digital inputs when used in comparator-like configurations. |
Pinout & Package
LT1013DMDG4 is housed in an 8-pin SOIC (Small Outline Integrated Circuit) package measuring 4.90 mm × 3.91 mm, with standard JEDEC MS-012AC footprint and gull-wing leads. This surface-mount package supports automated assembly and offers thermal resistance RθJA = 101.6°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | 1OUT | Output of amplifier channel 1; capable of sourcing/sinking current and swinging to within ~220 mV of ground under 1 mA load. |
| 2 | 1IN− | Inverting input of channel 1; high-impedance node (≥70 MΩ differential, ≥4 GΩ common-mode) for precision feedback networks. |
| 3 | 2IN+ | Noninverting input of channel 2; accepts signals from grounded sensors or reference voltages in dual-amplifier configurations. |
| 4 | VCC− | Negative supply terminal; tied to ground in single-supply operation; must be decoupled with 0.1 µF ceramic capacitor near pin. |
| 5 | 2OUT | Output of amplifier channel 2; electrically isolated from channel 1 with ≥120 dB channel separation at 25°C. |
| 6 | VCC+ | Positive supply terminal; accepts 5 V nominal (up to 30 V total supply); requires local 0.1 µF bypass capacitor. |
| 7 | 1IN+ | Noninverting input of channel 1; used for high-impedance signal acquisition (e.g., thermocouple cold-junction compensation). |
| 8 | 2IN− | Inverting input of channel 2; configured for unity-gain buffer or inverting gain stages in dual-channel signal paths. |
Key Features
| Feature | Design Value |
|---|---|
| Single-supply operation with ground-referenced input | Enables direct interfacing with grounded-sensor outputs (e.g., 4–20 mA loop receivers, shunt-based current monitors) without external level-shifting circuitry. |
| Output swing to ground while sinking current | Supports active-low analog outputs and direct driving of logic inputs (e.g., MCU GPIO thresholds) in 3.3 V/5 V systems. |
| Phase reversal protection | Prevents output latch-up or erroneous saturation when input common-mode voltage exceeds specified range - critical in transient-prone industrial environments. |
| Low 0.55 µVPP (0.1–10 Hz) input noise | Maintains effective resolution >16 bits in DC-coupled, low-frequency measurement applications such as thermocouple amplification. |
| 0.07 pA/√Hz input current noise | Minimizes Johnson-Nyquist noise contribution in high-source-impedance circuits (e.g., photodiode transimpedance amps >100 kΩ). |
Applications
| Thermocouple Amplifiers | Low-Side Current Measurement |
|---|---|
|
Use Scenario: Amplifying µV-level thermocouple outputs (e.g., Type K, J) with cold-junction compensation in HVAC controllers and industrial ovens. IC Role / Device Role / Timing Role: Precision DC-coupled instrumentation amplifier front-end, providing gain, offset correction, and noise filtering. Use Value: 0.55 µVPP noise and 250 µV max input offset ensure <±1°C accuracy over 0°C–70°C ambient without calibration. |
Use Scenario: Measuring motor phase current via ground-referenced shunt resistor in BLDC inverters and power supplies. IC Role / Device Role / Timing Role: Low-side current sense amplifier with rail-to-ground input and output capability. Use Value: Input common-mode range includes 0 V and output swings to 220 mV at 1 mA sink - enables accurate 50 mV shunt sensing with 3.3 V ADCs. |
| Instrumentation Amplifiers | Strain Gauge Signal Conditioning |
|
Use Scenario: Building 3-op-amp instrumentation amplifiers for bridge-based pressure sensors in medical devices and test equipment. IC Role / Device Role / Timing Role: Dual-channel core for matched gain-setting and output buffering stages. Use Value: Channel separation ≥120 dB prevents crosstalk between reference and signal paths; 0.7–5 µV/°C drift minimizes thermal gain error. |
Use Scenario: Amplifying Wheatstone bridge outputs from metal foil strain gauges in load cells and structural monitoring systems. IC Role / Device Role / Timing Role: Precision differential-to-single-ended converter with low drift and high CMRR. Use Value: 97–114 dB CMRR and 100–117 dB PSRR suppress bridge excitation ripple and supply noise, preserving µε-level resolution. |
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 |
|---|---|---|---|
| OPA2182IDR | Lower 4 µV max VIO (25°C), 0.02 µV/°C drift, but higher 1.7 mA supply current and no phase reversal protection. | Better DC accuracy for lab-grade instruments; unsuitable for noisy industrial environments where phase reversal could cause latch-up. | Select OPA2182IDR only when ultra-low drift dominates over robustness and power constraints. |
| AD8628ARZ-REEL7 | Zero-drift architecture achieves 1 µV max VIO and 0.005 µV/°C drift, but limited 2.7–5.5 V supply range and no guaranteed 5 V single-supply output swing to ground. | Ideal for battery-powered portable meters; cannot replace LT1013DMDG4 in 5 V systems requiring true ground-referenced output. | Choose AD8628ARZ-REEL7 only for ultra-low-offset, low-voltage (<5 V) applications where output swing to ground is not required. |
Compared with OPA2182IDR and AD8628ARZ-REEL7, the LT1013DMDG4 uniquely balances industrial-grade robustness (phase reversal protection, wide supply range), ground-swing capability, and moderate precision - making it irreplaceable in cost-sensitive, single-supply 5 V sensor front-ends where reliability trumps ultimate DC accuracy.
Availability
LT1013DMDG4 is available at Aetrix Electronics and suitable for thermocouple amplifiers, low-side current measurement, and instrumentation amplifiers requiring stable component supply across industrial temperature ranges and long production lifecycles.
Supply support for LT1013DMDG4 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-amps and industrial signal-chain solutions.
The LT1013x family was designed specifically for high-accuracy, low-power analog signal conditioning in industrial, medical, and test equipment - emphasizing single-supply usability, ground-referenced operation, and robustness in real-world environments.
FAQ
What is the operating temperature range for the LT1013DMDG4?
The LT1013DMDG4 is characterized for operation from 0°C to 70°C ambient temperature, matching the commercial-grade LT1013D specification. It is not rated for extended industrial (–40°C to 105°C) or military (–55°C to 125°C) ranges - those require LT1013DI or LT1013M variants. Thermal derating applies above 70°C per RθJA = 101.6°C/W.
Does the LT1013DMDG4 support true single-supply operation with input and output referenced to ground?
Yes. The LT1013DMDG4 supports true single-supply operation: its input common-mode range extends to VCC– (ground), and its output can swing to within 220–350 mV of ground while sinking 1 mA. This eliminates need for input biasing or output level-shifting in 5 V sensor interfaces - a key differentiator versus many legacy op-amps.
What is the maximum supply voltage for the LT1013DMDG4?
The LT1013DMDG4 has an absolute maximum supply voltage (VCC+ – VCC–) of 44 V, but its recommended operating range is 5 V to 30 V total. For reliable long-term operation, TI specifies 5 V (single) or ±15 V (dual) as standard conditions - exceeding 30 V risks accelerated parametric drift and reduced reliability.
How does phase reversal protection work in the LT1013DMDG4?
Phase reversal protection in the LT1013DMDG4 prevents output inversion or latch-up when input common-mode voltage exceeds the specified range (e.g., below VCC– or above VCC+ – 2 V). Internal circuitry clamps input stage biasing to maintain correct polarity - essential in industrial systems where ESD or inductive transients could drive inputs beyond rails.
Can the LT1013DMDG4 drive capacitive loads directly?
The LT1013DMDG4 is not unity-gain stable into arbitrary capacitive loads. Driving >100 pF directly may cause peaking or oscillation due to internal compensation. For capacitive loads (e.g., ADC inputs, cables), TI recommends isolating with a series resistor (≥100 Ω) or using external compensation per Figure 22 in the datasheet - always verify stability with actual layout parasitics.
LT1013DMDG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Discontinued at Digi-Key
- 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
LT1013DMDG4 FAQ
1.How can I place an order for LT1013DMDG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for LT1013DMDG4 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 LT1013DMDG4 reliable?
The price and inventory of LT1013DMDG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT1013DMDG4 is usually 5 days.
3.What payment methods are accepted for LT1013DMDG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT1013DMDG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT1013DMDG4?
LT1013DMDG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT1013DMDG4 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 LT1013DMDG4?
For technical support, including LT1013DMDG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT1013DMDG4 requirements.
6.How does Aetrix verify that LT1013DMDG4 is sourced from the original manufacturer or authorized distributors?
All LT1013DMDG4 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 LT1013DMDG4 meets industry standards.
7.What is the process for return or replacement of LT1013DMDG4?
All LT1013DMDG4 units undergo pre-shipment inspection (PSI). If there is an issue with LT1013DMDG4, 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 LT1013DMDG4 part is unused and in its original packaging.
Return procedure for LT1013DMDG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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