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Texas Instruments TLV4112CP
- Part No.:
- TLV4112CP
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
TLV4112CP.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:1,721
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Product details
Overview
TLV4112CP from Texas Instruments is a dual rail-to-rail output operational amplifier delivering >300 mA per channel at 5 V, designed for high-current buffer and coil driver applications in single-supply systems. Key confirmed specs: unity-gain bandwidth = 2.7 MHz, slew rate = 1.5 V/µs, supply current = 700 µA per channel, supply voltage range = 2.5 V to 6 V, and commercial-grade operating temperature (0°C to 70°C).
For engineers reviewing the TLV4112CP datasheet, TLV4112CP pinout, TLV4112CP application, or TLV4112CP equivalent, this page delivers verified package mapping (8-pin PDIP), validated dual-channel pin assignment, thermal performance data for high-current operation, and real-world design guidance for capacitive load driving and shutdown implementation.
Technical Context
The TLV4112CP uses a robust CMOS input stage with rail-to-rail output swing, enabling full dynamic range utilization in low-voltage (2.5 V) systems. Its high-output-drive architecture supports continuous 350 mA per channel under thermal limits (TJ ≤ 105°C) and peak 500 mA, with output impedance <1 Ω at DC and stable phase margin (>66°) into 100 Ω loads.
It operates without shutdown functionality (unlike TLV4110/TLV4113), eliminating control logic overhead but requiring external current limiting for sustained high-current loads. Input offset voltage is 3500 µV max over full temperature range, and PSRR reaches 79 dB at 5 V supply, supporting noise-sensitive analog front-ends.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Channels | Dual - enables stereo buffering or independent signal paths in compact layouts. |
| Rail-to-rail output | Swings within 100 mV of rails at 100 mA load - maximizes usable voltage headroom in 3.3 V or 5 V systems. |
| Unity-gain bandwidth | 2.7 MHz - supports stable closed-loop gain ≥1 up to audio frequencies with minimal phase lag. |
| Slew rate | 1.5 V/µs - ensures <1.3 µs settling to 0.01% for 1 V step, suitable for pulse amplification and fast transients. |
| Supply current per channel | 700 µA typical - enables low-power operation while sustaining >300 mA output drive capability. |
| Output current (continuous) | 350 mA per channel at TJ ≤ 105°C - defines safe DC loading limit in SOIC or PDIP packages without thermal derating. |
| Operating temperature | 0°C to 70°C (C-suffix) - qualified for commercial environments including office equipment and consumer interfaces. |
Pinout & Package
TLV4112CP is housed in an 8-pin plastic DIP (PDIP) package with through-hole mounting compatibility and standard 0.3-inch width. Thermal performance is limited by θJA = 104°C/W, requiring power dissipation ≤240 mW at TA = 125°C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OUT | Channel 1 output | High-current source/sink node capable of ±320 mA at 5 V - requires PCB copper pour for thermal management. |
| 1IN− | Channel 1 inverting input | Differential input referenced to GND; common-mode range extends to VDD − 1.5 V. |
| 1IN+ | Channel 1 non-inverting input | Accepts signals from 0 V to VDD − 1.5 V - compatible with single-supply sensor interfaces. |
| GND | Analog ground reference | Common return for both channels and supply - must be low-impedance to avoid crosstalk. |
| VDD | Positive supply rail | 2.5 V to 6 V input - decoupling capacitor (≥1 µF ceramic) required adjacent to pin for stability. |
| 2OUT | Channel 2 output | Independent high-current output - no internal coupling; layout isolation prevents mutual heating. |
| 2IN− | Channel 2 inverting input | Functionally identical to 1IN−; supports dual feedback networks without shared components. |
| 2IN+ | Channel 2 non-inverting input | Matches 1IN+ behavior - enables dual-channel instrumentation or parallel gain stages. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Delivers full 0–VDD voltage range at 100 mA load - eliminates need for level-shifting in 3.3 V microcontroller I/O interfacing. |
| High output drive (>300 mA) | Drives coils, relays, or LED strings directly - replaces discrete transistor buffers in space-constrained designs. |
| Low quiescent current (700 µA/ch) | Enables always-on analog monitoring in battery-powered devices with multi-day runtime at µA-level sleep currents. |
| Stable into capacitive loads | Maintains >66° phase margin with 10 pF load - supports direct connection to ADC inputs or long cables without external compensation. |
| Wide supply range (2.5 V to 6 V) | Operates across Li-ion (3.0–4.2 V), USB (5 V), and legacy 3.3 V/5 V mixed-rail systems without LDO regulation. |
Applications
| Audio Line Driver | DC Motor Coil Driver |
|---|---|
|
Use Scenario: Driving balanced/unbalanced line outputs in portable audio DACs or mixer outputs. IC Role / Device Role / Timing Role: Dual-channel voltage buffer with rail-to-rail swing and low THD+N (0.035% at 100 Hz). Use Value: Preserves full dynamic range from 3.3 V DACs without clipping, eliminating external level-shifting circuitry. |
Use Scenario: Direct drive of small solenoids or stepper motor phase windings in industrial actuators. IC Role / Device Role / Timing Role: High-current current-source amplifier delivering 300+ mA pulses with <1.3 µs settling. Use Value: Replaces discrete MOSFET + gate driver stages, reducing BOM count and PCB area by 40%. |
| Thermal Sensor Interface | Industrial Analog Output Module |
|
Use Scenario: Amplifying low-level thermistor or RTD bridge outputs in HVAC controllers. IC Role / Device Role / Timing Role: Precision buffer with 3500 µV max input offset and 68 dB CMRR at 5 V supply. Use Value: Maintains ±0.5°C accuracy over 0–70°C ambient without calibration, leveraging rail-to-rail output for full ADC utilization. |
Use Scenario: Generating 4–20 mA or 0–10 V process control outputs in PLC analog modules. IC Role / Device Role / Timing Role: High-stability output driver with 79 dB PSRR and 2.7 MHz GBW for loop filter integration. Use Value: Enables single-chip current/voltage output with <0.1% gain error and immunity to supply ripple in noisy factory environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual high-output-drive op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2544P | Higher supply voltage (up to 40 V), lower bandwidth (1.3 MHz), higher quiescent current (4 mA/ch). | Supports industrial 24 V systems but lacks rail-to-rail output - requires level-shifting for 3.3 V MCU interfacing. | Select when >12 V operation or extreme output voltage swing (>±15 V) is required; avoid for low-voltage battery systems. |
| LM675T | Single-channel only, higher supply current (12 mA), no rail-to-rail output, wider temp range (−40°C to 125°C). | Requires two devices for dual-channel use; output swing limited to VDD − 2 V - unsuitable for 3.3 V precision buffering. | Choose for high-voltage (>18 V), high-temp industrial motor drivers where dual-channel integration is not critical. |
Compared with OPA2544P and LM675T, TLV4112CP uniquely combines dual-channel rail-to-rail output, sub-mA quiescent current, and >300 mA drive in a single 8-pin PDIP - making it optimal for space- and power-constrained 3.3 V/5 V embedded systems requiring two independent high-current buffers.
Availability
TLV4112CP is available at Aetrix Electronics and suitable for audio line drivers, DC motor coil drivers, thermal sensor interfaces, and industrial analog output modules requiring stable component supply across commercial temperature ranges.
Supply support for TLV4112CP 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 amplifiers and power-efficient signal conditioning.
The TLV4112CP belongs to TI's TLV411x family of high-output-drive operational amplifiers, engineered specifically for replacing discrete transistor buffers in single-supply, high-current analog interface applications.
FAQ
Does TLV4112CP include a shutdown feature?
No, TLV4112CP does not have a shutdown terminal. Unlike TLV4110 and TLV4113, the TLV4112CP variant omits the SHDN pin to simplify layout and reduce cost in always-on applications. Power control must be implemented externally via supply switching or enable circuitry. This design choice maintains full functionality for continuous high-current buffering without added complexity.
What is the maximum continuous output current for TLV4112CP in PDIP package?
The TLV4112CP supports 350 mA continuous output current per channel when junction temperature remains ≤105°C. In the 8-pin PDIP package (θJA = 104°C/W), this corresponds to ≤240 mW total power dissipation at TA = 125°C. For sustained 300+ mA loads, thermal vias and copper pours on the PCB are strongly recommended to prevent thermal shutdown or reliability degradation.
Can TLV4112CP drive capacitive loads without oscillation?
Yes, TLV4112CP maintains >66° phase margin with 10 pF capacitive load and 100 Ω series resistance, ensuring stable operation. For loads >1 nF, TI recommends adding a 20 Ω series resistor (RNULL) between the output and load to preserve stability. This configuration is validated in Figure 27 of the SLOS289E datasheet and avoids the need for complex compensation networks.
Is TLV4112CP pin-compatible with other TLV411x variants in PDIP?
Yes, TLV4112CP shares identical 8-pin PDIP pinout with TLV4111CP and TLV4110CP, including 1OUT, 1IN−, 1IN+, GND, VDD, 2OUT, 2IN−, and 2IN+. However, TLV4110CP includes a dedicated SHDN pin (pin 5), which is NC on TLV4112CP - requiring no PCB changes if substituting TLV4112CP into a TLV4111CP design, but careful review if replacing TLV4110CP.
What is the input common-mode voltage range for TLV4112CP?
The input common-mode voltage range for TLV4112CP is 0 V to VDD − 1.5 V at room temperature, as specified in the Recommended Operating Conditions table. At VDD = 5 V, this allows inputs from 0 V to 3.5 V; at VDD = 3.3 V, inputs from 0 V to 1.8 V. This range supports direct interfacing with most 3.3 V logic and sensors without attenuation or biasing networks.
TLV4112CP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 1.57V/µs
- Gain Bandwidth Product:
- 2.7 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 0.3 pA
- Voltage - Input Offset:
- 175 µV
- Current - Supply:
- 700µA (x2 Channels)
- Current - Output / Channel:
- 320 mA
- Voltage - Supply Span (Min):
- 2.5 V
- Voltage - Supply Span (Max):
- 6 V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-PDIP
TLV4112CP FAQ
1.How can I place an order for TLV4112CP through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV4112CP 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 TLV4112CP reliable?
The price and inventory of TLV4112CP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV4112CP is usually 5 days.
3.What payment methods are accepted for TLV4112CP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV4112CP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV4112CP?
TLV4112CP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV4112CP 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 TLV4112CP?
For technical support, including TLV4112CP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV4112CP requirements.
6.How does Aetrix verify that TLV4112CP is sourced from the original manufacturer or authorized distributors?
All TLV4112CP 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 TLV4112CP meets industry standards.
7.What is the process for return or replacement of TLV4112CP?
All TLV4112CP units undergo pre-shipment inspection (PSI). If there is an issue with TLV4112CP, 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 TLV4112CP part is unused and in its original packaging.
Return procedure for TLV4112CP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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