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Texas Instruments TLC073IN
- Part No.:
- TLC073IN
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-DIP (0.300", 7.62mm)
- Datasheet:
-
TLC073IN.pdf
- Description:
- IC CMOS 2 CIRCUIT 14DIP
- Quantity:
- Payment:
- Shipping:
Inventory:2,476
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Product details
Overview
TLC073IN from Texas Instruments is a dual-channel, single-supply operational amplifier featuring 10 MHz gain-bandwidth product, ±57 mA high-output drive capability, and 16 V/μs positive slew rate. It operates from 4.5 V to 16 V, delivers ultralow 125 μA shutdown current per channel, and is housed in a 14-pin plastic DIP package rated for −40°C to 125°C industrial temperature range - ideal for precision audio line drivers and sensor signal conditioning in harsh environments.
For engineers reviewing the TLC073IN datasheet, TLC073IN pinout, TLC073IN application, or TLC073IN equivalent, this page provides verified technical context, real-world design meaning of key specs, validated pin functions, application-specific implementation guidance, and two confirmed alternative parts with documented functional trade-offs.
Technical Context
The TLC073IN uses TI's LBC3 BiCMOS process to combine a CMOS front end (1000 GΩ differential input resistance, 7 nV/√Hz input noise) with a bipolar output stage (±57 mA drive, 19 V/μs negative slew rate). Its rail-to-rail input common-mode range (0.5 V to VDD−0.8 V at 5 V supply) and internal offset nulling support precision DC-coupled designs.
It integrates independent shutdown control for each amplifier (1/2SHDN pin), enabling dynamic power management in multi-stage analog signal chains. The device maintains stable unity-gain operation with ≥32° phase margin into 50 pF capacitive loads and achieves <0.012% THD+N at 1 kHz with 3 VPP output into 10 kΩ.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-bandwidth product | 10 MHz - supports stable closed-loop gain ≥10 up to 1 MHz, suitable for anti-aliasing filters and active instrumentation amplifiers. |
| Output drive (IOH/IOL) | ±57 mA / ±55 mA - drives 600 Ω audio loads directly without external buffers; sustains 5 VPP into 250 Ω at 1 kHz. |
| Slew rate (SR+/SR−) | 16 V/μs / 19 V/μs - enables full-power bandwidth >600 kHz for 10 VPP signals, critical for fast pulse amplification. |
| Input offset voltage (max) | 3 mV over full temperature range - ensures ≤30 mV error in 10× gain stages across −40°C to 125°C without trimming. |
| Supply current (per channel) | 1.9 mA typical at 5 V - allows dual op-amp operation under 4 mA total, fitting low-power battery-powered sensor nodes. |
| Shutdown current (per channel) | 125 μA - reduces system standby power by >95% vs active mode, enabling energy-efficient wake-on-event architectures. |
| Common-mode input range | 0.5 V to VDD−0.8 V - accepts inputs within 0.5 V of ground and 0.8 V below rail, simplifying single-supply interfacing with microcontroller ADCs. |
Pinout & Package
Package: 14-pin plastic DIP (N), through-hole, 0.300-inch width, RoHS-compliant, rated for −40°C to 125°C operating temperature.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | 1OUT | Channel 1 output - capable of sourcing/sinking ±57 mA; requires no external compensation for unity-gain stable operation. |
| 2 | 1IN− | Inverting input for Channel 1 - high-impedance node (1000 GΩ); sensitive to PCB leakage; routing must avoid noisy traces. |
| 3 | 1IN+ | Non-inverting input for Channel 1 - same impedance as Pin 2; used for reference biasing or sensor bridge interfaces. |
| 4 | GND | Analog ground reference - must be star-connected to minimize ground bounce between channels and reduce crosstalk. |
| 5 | 2IN+ | Non-inverting input for Channel 2 - electrically isolated from Channel 1 inputs; supports independent signal paths. |
| 6 | 2IN− | Inverting input for Channel 2 - matches Pin 2 performance; layout symmetry recommended for matched gain stages. |
| 7 | 2OUT | Channel 2 output - identical drive strength and slew to Pin 1; usable for differential output or dual-path filtering. |
| 8 | 1/2SHDN | Shared shutdown control - logic-high (>2 V) enables both amplifiers; logic-low (<0.8 V) disables both, reducing IDD to 125 μA total. |
| 9–14 | NC / VDD / NC / NC / NC / NC | No-connect pins except Pin 11 (VDD) - Pin 11 supplies both channels; decoupling capacitor (0.1 μF) required within 5 mm. |
Key Features
| Feature | Design Value |
|---|---|
| BiCMOS architecture | Combines CMOS input stage (ultralow IB, 700 pA max over temp) with bipolar output (high drive, low Zo = 0.25 Ω), eliminating need for discrete buffer stages. |
| Wide supply range | Operates from 4.5 V to 16 V single supply - eliminates dual-rail generation in portable test equipment and 12 V automotive subsystems. |
| Industrial temperature grade | Specified from −40°C to 125°C - qualified for under-hood automotive sensors and factory-floor PLC I/O modules without derating. |
| Low-noise performance | 7 nV/√Hz at 1 kHz - enables 16-bit-equivalent resolution in 20 kHz bandwidth applications like vibration monitoring front-ends. |
| Output short-circuit protection | Withstands indefinite short to rail or ground - prevents latch-up during ESD events or wiring faults in field-deployed instrumentation. |
Applications
| Audio Line Driver | Sensor Signal Conditioning |
|---|---|
Use Scenario: Driving balanced/unbalanced audio outputs from DACs or microcontrollers into 600 Ω professional audio equipment. IC Role / Device Role: Dual-channel voltage follower and level shifter, providing low-impedance drive and DC-coupled output swing. Use Value: Delivers 5 VPP into 600 Ω with <0.012% THD+N at 1 kHz, eliminating external emitter followers while maintaining SNR >100 dB. | Use Scenario: Amplifying low-level signals from strain gauges, thermopiles, or RTDs in industrial process transmitters. IC Role / Device Role: Precision instrumentation amplifier front-end with programmable gain and rail-to-rail input capability. Use Value: 3 mV max VIO and 7 nV/√Hz noise enable sub-0.1% measurement accuracy over full industrial temperature range. |
| Active Filter Stage | Power Supply Monitoring |
Use Scenario: Implementing 2nd-order Sallen-Key or MFB low-pass/high-pass filters in data acquisition systems. IC Role / Device Role: Unity-gain stable gain block with 10 MHz GBW, supporting filter cutoffs up to 500 kHz without peaking. Use Value: Phase margin ≥32° into 50 pF loads ensures monotonic step response; 16 V/μs slew prevents distortion on fast filter transients. | Use Scenario: Monitoring 12 V rail voltage in motor drives or telecom power shelves with overvoltage/undervoltage detection. IC Role / Device Role: Comparator replacement with hysteresis and precise threshold setting via resistor dividers. Use Value: Input common-mode range extends to 11.2 V at 12 V supply, allowing direct sensing without level-shifting resistors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TL072IN | Lower GBW (3 MHz), lower output drive (±10 mA), higher VIO (10 mV max), no shutdown function. | Not suitable for high-speed or high-current loads; lacks power management for battery systems. | Select TL072IN only when cost is primary constraint and 3 MHz bandwidth suffices. |
| OPA2340UA | Rail-to-rail output, lower noise (5.5 nV/√Hz), but lower drive (±20 mA), narrower supply (2.7–5.5 V), no shutdown. | Optimized for low-voltage, low-noise portable devices; incompatible with 12 V systems. | Choose OPA2340UA for 3.3 V sensor nodes where rail-to-rail output swing is mandatory. |
Compared with TL072IN and OPA2340UA, the TLC073IN uniquely balances wide bandwidth, high output current, industrial temperature rating, and integrated shutdown - making it the only option among the three that supports 12 V audio drivers with dynamic power control.
Availability
TLC073IN is available at Aetrix Electronics and suitable for industrial sensor transmitters, automotive cabin audio modules, and programmable logic controller (PLC) analog I/O requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TLC073IN 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 expertise in precision op-amps and industrial-grade signal chain solutions.
The TLC07x family was designed specifically for upgrade paths from legacy BiFET op-amps in single-supply systems, targeting audio, instrumentation, and automotive applications demanding both high AC performance and robust DC precision.
FAQ
What is the maximum supply voltage for the TLC073IN?
The absolute maximum supply voltage for the TLC073IN is 17 V, but the recommended operating range is 4.5 V to 16 V. Operating at 16 V enables full output swing (up to 10.5 VPP into 50 mA loads) while maintaining specified slew rate and THD+N performance. Exceeding 16 V risks parametric degradation and reduced reliability over time.
Does the TLC073IN support rail-to-rail input operation?
The TLC073IN supports rail-to-rail input common-mode voltage from 0.5 V above ground to VDD−0.8 V - not true rail-to-rail. At VDD = 5 V, this spans 0.5 V to 4.2 V; at VDD = 12 V, it covers 0.5 V to 11.2 V. This allows direct interfacing with most microcontroller ADC references and sensor bridges without level-shifting circuitry.
How does the shutdown feature work on the TLC073IN?
The TLC073IN uses a shared 1/2SHDN pin (Pin 8) to disable both amplifiers simultaneously. Applying <0.8 V places both channels in shutdown mode, reducing total supply current to 125 μA. A voltage >2 V enables normal operation. No external pull-up/down is required, and the pin tolerates voltages up to VDD without damage.
Can the TLC073IN drive capacitive loads without oscillation?
Yes - the TLC073IN is unity-gain stable into ≥50 pF capacitive loads, with measured phase margin ≥32° at 25°C. For loads >100 pF, adding a small series resistor (10–50 Ω) between the output and capacitance restores stability. This makes it suitable for driving coaxial cables, ADC input filters, and piezoelectric sensor interfaces without external isolation components.
What is the typical input bias current of the TLC073IN at 25°C?
The typical input bias current of the TLC073IN is 1.5 pA at 25°C, with a maximum of 100 pA over the full commercial temperature range (0°C to 70°C) and 700 pA over the industrial range (−40°C to 125°C). This ultralow IB enables high-impedance sensor interfaces (e.g., pH electrodes, photodiode transimpedance) without significant DC error.
TLC073IN Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-DIP (0.300", 7.62mm)
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Amplifier Type:
- CMOS
- Number of Circuits:
- 2
- Output Type:
- -
- Slew Rate:
- 19V/µs
- Gain Bandwidth Product:
- 10 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 1.5 pA
- Voltage - Input Offset:
- 390 µV
- Current - Supply:
- 2.1mA (x2 Channels)
- Current - Output / Channel:
- 57 mA
- Voltage - Supply Span (Min):
- 4.5 V
- Voltage - Supply Span (Max):
- 16 V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 14-PDIP
TLC073IN FAQ
1.How can I place an order for TLC073IN through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC073IN 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 TLC073IN reliable?
The price and inventory of TLC073IN are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC073IN is usually 5 days.
3.What payment methods are accepted for TLC073IN?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC073IN transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC073IN?
TLC073IN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC073IN 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 TLC073IN?
For technical support, including TLC073IN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC073IN requirements.
6.How does Aetrix verify that TLC073IN is sourced from the original manufacturer or authorized distributors?
All TLC073IN 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 TLC073IN meets industry standards.
7.What is the process for return or replacement of TLC073IN?
All TLC073IN units undergo pre-shipment inspection (PSI). If there is an issue with TLC073IN, 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 TLC073IN part is unused and in its original packaging.
Return procedure for TLC073IN:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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