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Texas Instruments TLC1078MDG4
- Part No.:
- TLC1078MDG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLC1078MDG4.pdf
- Description:
- IC CMOS 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:525
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Product details
Overview
TLC1078MDG4 from Texas Instruments is a dual-channel, ultra-low-power LinCMOS™ precision operational amplifier designed for battery-critical signal conditioning. It delivers 450 µV max input offset voltage (25°C), 0.1 µV/month drift, 47 V/ms slew rate, and 150 µW typical supply power per amplifier at VDD = 5 V - enabling operation from a single 1.4 V silver-oxide watch battery in low-voltage sensor front-ends.
For engineers reviewing the TLC1078MDG4 datasheet, TLC1078MDG4 pinout, TLC1078MDG4 application, or TLC1078MDG4 equivalent, key selection criteria include its rail-to-rail output swing, negative-rail common-mode input range, 0.6 pA typical input bias current, and military-grade –55°C to 125°C temperature qualification - critical for aerospace instrumentation, downhole sensing, and high-reliability portable medical devices.
Technical Context
The TLC1078MDG4 employs a proprietary LinCMOS™ input stage delivering femtoampere-level input bias current and sub-microvolt offset stability over time and temperature. Its architecture supports single-supply operation with input common-mode range extending to the negative rail and output swing reaching GND, eliminating level-shifting circuitry in low-voltage analog signal chains.
Internal ESD protection meets MIL-PRF-38535 Method 3015.2 (2000 V HBM), and the design prevents latch-up under ±100 mA surge currents. The device is characterized across the full military temperature range (–55°C to 125°C) and specified for stable operation with capacitive loads up to 20 pF.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 4 V to 16 V - supports wide-input industrial power rails while maintaining ultra-low quiescent current |
| Input Offset Voltage (Max) | 1400 µV over –55°C to 125°C - enables precision DC amplification without frequent recalibration |
| Input Bias Current (Typ) | 0.6 pA at 25°C - preserves signal integrity in high-impedance pH, photodiode, or piezoelectric sensor interfaces |
| Slew Rate (Typ) | 47 V/ms at VDD = 5 V - sufficient for 110-kHz unity-gain bandwidth in low-noise sensor buffering |
| Supply Current (Typ) | 34 µA per amplifier at 25°C - allows multi-year operation on coin-cell batteries in wireless IoT nodes |
| Common-Mode Input Range | Extends to negative rail (0 V at VDD = 5 V) - simplifies single-supply transducer signal conditioning |
| Output Voltage Swing | Includes GND (0 V) - eliminates need for negative supply in rail-referenced measurement circuits |
Pinout & Package
Package: SOIC-8 (DG package), 150 mil width, surface-mount, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting Input (Amplifier 1) | High-impedance differential node accepting feedback or signal inversion |
| 2 | Non-inverting Input (Amplifier 1) | High-Z node for reference or sensor connection; extends to GND |
| 3 | Output (Amplifier 1) | Capable of sourcing/sinking >20 mA; swings to GND for true single-supply operation |
| 4 | GND | Analog ground reference; must be low-impedance for noise-sensitive precision applications |
| 5 | VDD | Positive supply rail; decoupling capacitor required within 1 cm for stability |
| 6 | Non-inverting Input (Amplifier 2) | Independent high-Z input for second channel; identical specs to Pin 2 |
| 7 | Inverting Input (Amplifier 2) | Independent differential input; matches Pin 1 performance and layout requirements |
| 8 | Output (Amplifier 2) | Second fully buffered output; supports dual-sensor or differential-output configurations |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Drives to GND with <25 mV saturation - enables direct interfacing with ADCs and logic without level shifters |
| Ultra-low input bias current | 0.6 pA typ minimizes voltage error across high-source-impedance sensors (e.g., >100 MΩ) |
| Sub-microvolt/month offset drift | 0.1 µV/month long-term stability - reduces calibration frequency in sealed instrumentation |
| Military temperature qualification | –55°C to 125°C operation - validated for avionics, defense electronics, and oilfield tools |
| Integrated ESD protection | 2000 V HBM rating - eliminates need for external TVS diodes in ruggedized PCB layouts |
Applications
| Portable Medical Sensors | Aerospace Instrumentation |
|---|---|
Use Scenario: Amplifying microvolt-level EEG or ECG signals in battery-powered wearable monitors. IC Role / Device Role / Timing Role: Precision DC-coupled front-end amplifier with ultra-low noise and offset drift. Use Value: Enables >12-bit effective resolution over multi-year deployment without recalibration due to 0.1 µV/month drift and 0.6 pA IIB. | Use Scenario: Signal conditioning for pressure and temperature transducers in flight control systems. IC Role / Device Role / Timing Role: Dual-channel sensor interface amplifier operating across –55°C to 125°C. Use Value: Military-grade qualification and rail-to-rail output eliminate external level-shifting, reducing BOM count and failure points. |
| Downhole Oilfield Tools | Low-Power Industrial IoT Nodes |
Use Scenario: Conditioning resistive bridge outputs in high-temperature drill-string telemetry modules. IC Role / Device Role / Timing Role: High-stability amplifier for precision ratiometric measurements under thermal stress. Use Value: 1400 µV max VIO over full temperature range ensures <0.05% gain error in 4–20 mA loop interfaces. | Use Scenario: Battery-operated environmental sensor hubs measuring humidity, CO₂, and particulate matter. IC Role / Device Role / Timing Role: Ultra-low-quiescent-current signal conditioner for multi-sensor aggregation. Use Value: 34 µA per amplifier enables >5-year operation on CR2032 cells, supporting maintenance-free deployments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2333MDRGR | Chopper-stabilized architecture; 0.02 µV/°C drift vs. TLC1078MDG4's 1.4 µV/°C; higher 17 µA supply current | Better DC accuracy but higher noise floor (0.65 µVpp vs. 68 nV/√Hz); unsuitable for high-frequency sensor signals | Select when ultra-low drift dominates over power and noise; verify chopper ripple compatibility with downstream ADCs |
| LMC6062IMX/NOPB | CMOS input; 0.25 pA IIB (lower), but only rated for –40°C to 85°C; no military temp option | Lacks extended temperature support; lower max VIO (125 µV) but unqualified beyond 85°C | Use in commercial-grade portable instruments where cost and room-temp stability are prioritized over ruggedness |
Compared with OPA2333MDRGR and LMC6062IMX/NOPB, the TLC1078MDG4 uniquely balances military-temperature operation, ultra-low power (34 µA), and LinCMOS™ input integrity - making it irreplaceable in sealed, long-life, high-reliability embedded systems where ambient extremes and battery longevity are non-negotiable.
Availability
TLC1078MDG4 is available at Aetrix Electronics and suitable for aerospace instrumentation, downhole sensing, and portable medical devices requiring stable component supply across extended temperature ranges and multi-year service life.
Supply support for TLC1078MDG4 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 analog ICs.
The TLC107x family was engineered for ultra-low-power, high-accuracy signal conditioning in battery-constrained, thermally demanding environments - targeting medical, defense, and industrial measurement systems where offset stability and supply efficiency are paramount.
FAQ
What is the maximum operating temperature range for the TLC1078MDG4?
The TLC1078MDG4 is fully characterized and guaranteed over the military temperature range of –55°C to +125°C. This specification is confirmed in the Absolute Maximum Ratings and Recommended Operating Conditions tables of the official SLOS179A datasheet, with electrical parameters validated across this full span including supply current, input offset voltage, and open-loop gain.
Does the TLC1078MDG4 support true single-supply operation with input signals at ground potential?
Yes. The TLC1078MDG4 features a common-mode input voltage range that extends to the negative rail (GND), and its output swings fully to GND. As stated in the datasheet's "Features" section and verified in the VICR specifications (e.g., 0 V to 3.5 V at VDD = 5 V over full temperature range), this enables direct interfacing with ground-referenced sensors without level-shifting circuitry.
What is the typical supply current per amplifier for the TLC1078MDG4 at 25°C and VDD = 5 V?
The typical supply current per amplifier for the TLC1078MDG4 is 34 µA at 25°C and VDD = 5 V, as documented in the "Electrical Characteristics" table for the TLC1078M grade. This value reflects operation with no load and VIC = VDD/2, and aligns with the "150 µW power dissipation per amplifier" headline specification (34 µA × 5 V = 170 µW).
Is the TLC1078MDG4 pin-compatible with other devices in the TLC107x family?
Yes. The TLC1078MDG4 uses the standard SOIC-8 (DG) package and shares identical pinout with all TLC1078 variants (e.g., TLC1078CD, TLC1078ID) and is functionally compatible with the TLC27L2/4 and TLC27L7/9 families as noted in the datasheet introduction - enabling drop-in upgrades in existing designs where enhanced offset and power performance are needed.
What packaging and compliance information applies to the TLC1078MDG4?
The TLC1078MDG4 is supplied in an 8-pin SOIC (DG) package, RoHS-compliant and lead-free per TI's packaging standards. The "G4" suffix denotes TI's green (halogen-free) packaging specification. Full mechanical drawings, thermal data, and JEDEC moisture sensitivity level (MSL) information are available in TI's official packaging documentation for the DG package.
TLC1078MDG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LinCMOS™
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Amplifier Type:
- CMOS
- Number of Circuits:
- 2
- Output Type:
- -
- Slew Rate:
- 0.032V/µs
- Gain Bandwidth Product:
- 110 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 1 pA
- Voltage - Input Offset:
- 180 µV
- Current - Supply:
- 29µA (x2 Channels)
- Current - Output / Channel:
- 30 mA
- Voltage - Supply Span (Min):
- 4 V
- Voltage - Supply Span (Max):
- 16 V
- Operating Temperature:
- -55°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
TLC1078MDG4 FAQ
1.How can I place an order for TLC1078MDG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC1078MDG4 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 TLC1078MDG4 reliable?
The price and inventory of TLC1078MDG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC1078MDG4 is usually 5 days.
3.What payment methods are accepted for TLC1078MDG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC1078MDG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC1078MDG4?
TLC1078MDG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC1078MDG4 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 TLC1078MDG4?
For technical support, including TLC1078MDG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC1078MDG4 requirements.
6.How does Aetrix verify that TLC1078MDG4 is sourced from the original manufacturer or authorized distributors?
All TLC1078MDG4 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 TLC1078MDG4 meets industry standards.
7.What is the process for return or replacement of TLC1078MDG4?
All TLC1078MDG4 units undergo pre-shipment inspection (PSI). If there is an issue with TLC1078MDG4, 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 TLC1078MDG4 part is unused and in its original packaging.
Return procedure for TLC1078MDG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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