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Texas Instruments TLC1078MD
- Part No.:
- TLC1078MD
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLC1078MD.pdf
- Description:
- IC CMOS 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,533
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Product details
Overview
TLC1078MD from Texas Instruments is a dual-channel, ultra-low-power, precision LinCMOS™ operational amplifier designed for military-temperature-range signal conditioning in battery-constrained systems. It delivers 450 µV max input offset voltage (25°C), 0.1 µV/month long-term 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.
For engineers reviewing the TLC1078MD datasheet, TLC1078MD pinout, TLC1078MD application, or TLC1078MD equivalent, key selection criteria include its –55°C to 125°C operating range, rail-to-rail output swing, negative-rail-input capability, and compatibility with low-voltage sensor front-ends and precision analog monitoring circuits.
Technical Context
The TLC1078MD implements a dual-amplifier LinCMOS™ architecture with high-impedance p-channel MOSFET inputs (IIB = 0.6 pA typ), enabling direct interfacing with high-impedance sources like piezoelectric sensors and pH electrodes. Its internal ESD protection withstands 2000 V per MIL-PRF-38535 Method 3015.2.
It features common-mode input voltage range extending to the negative rail (VICRmin = 0 V at full temperature range), output voltage swing including the negative rail, and stable unity-gain operation with ≥34° phase margin (CL = 20 pF). The device avoids latch-up under ±100 mA surge currents.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Channels | Dual amplifier - supports independent signal paths in compact space-constrained designs. |
| Supply Voltage Range | 4 V to 16 V - compatible with wide industrial/military power rails; minimum 4 V ensures robustness vs. brownout. |
| Input Offset Voltage | 1250 µV max over –55°C to 125°C - enables DC-coupled precision amplification without frequent recalibration. |
| Slew Rate | 47 V/ms typ at 25°C - sufficient for <10 kHz small-signal bandwidth in low-noise sensor interfaces. |
| Supply Current | 34 µA typ per amplifier at 25°C - allows multi-year operation on coin-cell batteries in remote monitoring nodes. |
| Input Bias Current | 9 nA max at 125°C - preserves accuracy when driving high-value feedback networks or capacitive transducers. |
| Common-Mode Input Range | 0 V to (VDD – 1 V) min - supports ground-referenced sensor signals without level-shifting circuitry. |
Pinout & Package
Package: 8-pin plastic DIP (P package), through-hole mountable, JEDEC MS-001 compliant. Pin 1 identified by notch or dot; body dimensions 9.27 mm × 6.35 mm × 3.3 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OUT | Amplifier 1 output | Drives loads up to 20 mA; rail-to-rail swing supports full dynamic range utilization. |
| 1IN– | Inverting input of Amp 1 | High-impedance node (Zin > 10¹² Ω); accepts differential or single-ended configurations. |
| 1IN+ | Non-inverting input of Amp 1 | Matches 1IN– characteristics; enables precision instrumentation and reference buffering. |
| GND | Analog ground reference | Shared return for both amplifiers; must be low-impedance to minimize PSRR degradation. |
| VDD | Positive supply rail | Single-supply operation only; no negative rail required - simplifies power architecture. |
| 2OUT | Amplifier 2 output | Independent output channel; identical specs to 1OUT - enables dual-path signal processing. |
| 2IN– | Inverting input of Amp 2 | Electrically isolated from Amp 1 inputs; supports parallel or cascaded topologies. |
| 2IN+ | Non-inverting input of Amp 2 | Enables matched dual-channel gain stages or differential-to-single-ended conversion. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power dissipation | 150 µW per amplifier at 5 V - extends battery life in portable telemetry and munitions fuzing systems. |
| Rail-to-rail output swing | Swings to GND and within 100 mV of VDD - maximizes ADC input range without external level-shifting. |
| Negative-rail input capability | Common-mode range includes GND (0 V) - eliminates need for biasing resistors in single-supply sensor interfaces. |
| Low long-term drift | 0.1 µV/month typical offset drift - reduces calibration frequency in field-deployed test equipment and avionics monitors. |
| Military temperature rating | –55°C to +125°C operation - qualified for engine bay, missile guidance, and downhole electronics applications. |
Applications
| Strain Gauge Signal Conditioning | Remote Battery-Powered Sensor Node |
|---|---|
Use Scenario: Amplifying microvolt-level Wheatstone bridge outputs from structural health monitoring sensors on aircraft wings. IC Role / Device Role / Timing Role: Precision instrumentation amplifier front-end with gain-setting and offset trimming. Use Value: 450 µV max VIO and 0.1 µV/month drift ensure measurement stability over 10+ year service life without recalibration. | Use Scenario: Low-power analog front-end for environmental sensors (temperature, humidity, gas) deployed in unattended field locations. IC Role / Device Role / Timing Role: Signal conditioning and buffer stage prior to SAR ADC sampling. Use Value: 34 µA supply current per amplifier enables >5-year operation on CR2032 cells while maintaining 16-bit effective resolution. |
| Medical Patient Monitor Analog Front-End | Industrial Process Controller Input Stage |
Use Scenario: Biopotential acquisition (ECG/EMG) where low noise and DC accuracy are critical for diagnostic interpretation. IC Role / Device Role / Timing Role: High-impedance electrode buffer and first-stage gain amplifier. Use Value: 0.6 pA input bias current prevents electrode polarization errors; rail-to-rail output drives ADC directly. | Use Scenario: Isolated 4–20 mA loop receiver and linearization stage in factory automation PLC modules. IC Role / Device Role / Timing Role: Precision current-to-voltage conversion and filtering amplifier. Use Value: –55°C to 125°C rating ensures reliable operation inside sealed control cabinets exposed to ambient extremes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLC27L2M | Higher input offset voltage (1800 µV max), lower slew rate (40 V/ms), same military temp range. | Less suitable for sub-mV DC signal amplification; acceptable for AC-coupled or less demanding precision tasks. | Select TLC1078MD when VIO ≤ 1250 µV and long-term drift stability are mandatory. |
| OPA2333MD | Zero-drift architecture (0.02 µV/°C), lower noise (5.5 nV/√Hz), but higher quiescent current (17 µA per amp). | Better for high-resolution data acquisition; unsuitable for ultra-low-power battery operation. | Choose OPA2333MD only if offset drift <0.1 µV/°C is required and power budget allows >10× higher IDD. |
Compared with TLC27L2M, TLC1078MD provides 2.7× lower max input offset and superior long-term stability; compared with OPA2333MD, it consumes 1/5 the supply current but trades off zero-drift performance for extreme power efficiency in harsh environments.
Availability
TLC1078MD is available at Aetrix Electronics and suitable for aerospace telemetry, defense subsystems, and industrial process monitoring requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for TLC1078MD 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 delivering analog, embedded processing, and connectivity solutions for industrial, automotive, and communications markets.
The TLC107x family was engineered for ultra-low-power, high-precision analog signal conditioning in battery-operated and thermally extreme applications - emphasizing offset stability, rail-to-rail operation, and robustness over wide temperature excursions.
FAQ
What is the maximum operating temperature for the TLC1078MD?
The TLC1078MD is fully specified and tested over an operating free-air temperature range of –55°C to +125°C, meeting MIL-PRF-38535 requirements for military-grade components. This rating applies across all electrical parameters including input offset voltage, supply current, and open-loop gain - verified at temperature extremes during qualification testing.
Does the TLC1078MD support single-supply operation below 2 V?
No - the TLC1078MD requires a minimum supply voltage of 4 V, as defined in its recommended operating conditions table. While earlier TLC107x variants (e.g., TLC1078C) operate down to 1.4 V, the M-suffix version's absolute minimum VDD is 4 V to ensure parametric stability across the full –55°C to 125°C range. Using voltages below 4 V may result in undefined behavior or specification violation.
Can the TLC1078MD drive capacitive loads without oscillation?
The TLC1078MD maintains ≥34° phase margin with a 20 pF capacitive load at unity gain, per Figure 2 test conditions. For loads exceeding 20 pF, external compensation (e.g., series resistor at output) is recommended. Stability is confirmed across –55°C to 125°C; phase margin degrades to 25° at 125°C with 20 pF, remaining above the 20° minimum for reliable operation.
What is the input common-mode voltage range of the TLC1078MD at 125°C?
At 125°C, the TLC1078MD common-mode input voltage range is 0 V to (VDD – 1 V), per the "Full range" column in the electrical characteristics table on page 13. Unlike C/I-suffix versions, the M-suffix variant does not extend below ground at temperature extremes - this is a deliberate design trade-off for enhanced high-temperature reliability and reduced leakage.
Is the TLC1078MD pin-compatible with the TLC27L2M?
Yes - the TLC1078MD and TLC27L2M share identical 8-pin DIP (P) package footprints and pin assignments: Pin 1 = OUT A, Pin 2 = IN– A, Pin 3 = IN+ A, Pin 4 = GND, Pin 5 = IN+ B, Pin 6 = IN– B, Pin 7 = OUT B, Pin 8 = VDD. This allows direct drop-in replacement in existing layouts where improved offset and drift performance are needed.
TLC1078MD Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LinCMOS™
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- 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
TLC1078MD FAQ
1.How can I place an order for TLC1078MD through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC1078MD 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 TLC1078MD reliable?
The price and inventory of TLC1078MD are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC1078MD is usually 5 days.
3.What payment methods are accepted for TLC1078MD?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC1078MD transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC1078MD?
TLC1078MD orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC1078MD 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 TLC1078MD?
For technical support, including TLC1078MD datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC1078MD requirements.
6.How does Aetrix verify that TLC1078MD is sourced from the original manufacturer or authorized distributors?
All TLC1078MD 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 TLC1078MD meets industry standards.
7.What is the process for return or replacement of TLC1078MD?
All TLC1078MD units undergo pre-shipment inspection (PSI). If there is an issue with TLC1078MD, 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 TLC1078MD part is unused and in its original packaging.
Return procedure for TLC1078MD:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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