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Texas Instruments TLV4112IDGNR
- Part No.:
- TLV4112IDGNR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
- Datasheet:
-
TLV4112IDGNR.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8HVSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,999
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Product details
Overview
TLV4112IDGNR from Texas Instruments is a dual-channel, rail-to-rail output operational amplifier optimized for high-current buffer and coil driver applications. It delivers >300 mA per channel at 5 V, features 2.7 MHz unity-gain bandwidth, 1.5 V/µs slew rate, and operates from 2.5 V to 6 V supply with industrial-grade temperature range (−40°C to 125°C). It is used in precision current-source drivers for solenoids and piezoelectric actuators.
For engineers reviewing the TLV4112IDGNR datasheet, TLV4112IDGNR pinout, TLV4112IDGNR application, or TLV4112IDGNR equivalent, key selection criteria include guaranteed 300 mA continuous output drive per channel, thermal performance in MSOP PowerPAD™ package, rail-to-rail output swing, shutdown capability absence (TLV4112 lacks SHDN pin), and SOIC/MSOP package compatibility for layout reuse.
Technical Context
The TLV4112IDGNR employs a robust output stage capable of sourcing/sinking up to ±320 mA at 5 V while maintaining rail-to-rail output swing. Its internal architecture supports stable operation into capacitive loads ≥1 nF when paired with a series RNULL resistor (≤20 Ω), as specified in TI's application guidance.
It operates without shutdown control-unlike TLV4110/TLV4113-and uses a complementary input stage with 1000 GΩ differential input resistance and 5 pF common-mode input capacitance. The device exhibits 63–68 dB CMRR and 70–79 dB PSRR across its 2.5–6 V supply range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Drive | >300 mA per channel continuous (at 5 V, TJ ≤ 105°C); enables direct driving of solenoids, relays, and piezo elements without external transistors. |
| Rail-to-Rail Output | Swings within 100 mV of rails at 100 mA load; preserves dynamic range in low-voltage systems (e.g., 3.3 V or 5 V supplies). |
| Unity-Gain Bandwidth | 2.7 MHz; supports stable closed-loop gain ≥1 with fast settling (0.7 µs to 0.1%, 1 V step) for pulse-driven loads. |
| Slew Rate | 1.5 V/µs (at 5 V); ensures faithful reproduction of medium-speed analog signals and PWM edge fidelity. |
| Supply Current | 700 µA per channel (typical); enables low-quiescent-power operation in always-on industrial sensor interfaces. |
| Supply Voltage Range | 2.5 V to 6 V; compatible with single-cell Li-ion (3.0–4.2 V), USB-powered (5 V), and regulated 3.3 V systems. |
| Operating Temp Range | −40°C to 125°C (I-suffix); qualified for under-hood automotive, motor control, and industrial PLC environments. |
Pinout & Package
TLV4112IDGNR is housed in an 8-pin MSOP PowerPAD™ package (DGN), featuring an exposed thermal pad on the underside for enhanced heat dissipation. This thermally optimized construction enables >2 W power dissipation (474 mW at 125°C ambient) - critical for sustained high-current operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OUT | Channel 1 output | High-current output node; capable of sourcing/sinking ≥300 mA; requires thermal pad soldering for full rating. |
| 1IN− | Channel 1 inverting input | Differential input terminal; 1000 GΩ input resistance minimizes loading in high-impedance sensor interfaces. |
| 1IN+ | Channel 1 non-inverting input | Differential input terminal; common-mode range extends to 0 V and VDD−1.5 V. |
| GND | Analog ground reference | Primary return path for both channels; must be connected to PCB ground plane and thermal pad (electrically isolated but thermally coupled). |
| VDD | Positive supply rail | Single 2.5–6 V supply input; powers both amplifiers; PSRR ≥65 dB reduces sensitivity to supply noise. |
| 2OUT | Channel 2 output | Independent high-current output; identical specs to 1OUT; enables dual-coil or redundant driver designs. |
| 2IN− | Channel 2 inverting input | Second differential input; crosstalk < −60 dB at 100 kHz ensures channel isolation in multi-axis systems. |
| 2IN+ | Channel 2 non-inverting input | Second differential input; matched offset voltage drift (3 µV/°C) supports precision dual-sensor conditioning. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Delivers full-scale signal headroom down to 100 mV from rails at 100 mA, maximizing usable voltage range in 3.3 V systems. |
| High-output-current capability | Guaranteed ±320 mA peak (5 V) and ±220 mA (3 V) enables direct interface to 24 V solenoids via level-shifting circuitry or 5 V coils without discrete buffers. |
| Thermally enhanced MSOP PowerPAD™ | θJA = 52.7°C/W enables 474 mW continuous dissipation at 125°C ambient - 3.3× higher than standard SOIC-8. |
| Low input bias current | Max 500 pA (I-suffix, full temp range) preserves accuracy in high-impedance pH, strain gauge, or photodiode front-ends. |
| Stable into capacitive loads | Phase margin ≥66° with 10 pF load; supports direct connection to piezo actuators or long cables when combined with RNULL ≤20 Ω. |
Applications
| Solenoid Driver | Piezoelectric Actuator Interface |
|---|---|
Use Scenario: Driving 12 V/500 mA DC solenoids in industrial valve control modules with microcontroller-based PWM timing. IC Role / Device Role / Timing Role: High-current buffer amplifier configured as non-inverting unity-gain driver; accepts 3.3 V logic-level PWM and delivers full 12 V coil current. Use Value: Eliminates need for external MOSFET stage, reducing BOM count and PCB area while maintaining 1.5 V/µs edge speed for precise stroke timing. | Use Scenario: Positioning piezoelectric stack actuators in semiconductor wafer inspection stages requiring sub-nanometer resolution. IC Role / Device Role / Timing Role: Precision voltage-controlled current source (via Howland configuration) delivering low-noise, rail-to-rail drive to 100 nF capacitive load. Use Value: 55 nV/√Hz input noise and 0.15% THD+N at 100 Hz enable clean displacement waveforms without mechanical resonance excitation. |
| Industrial Sensor Signal Conditioning | Motor Phase Current Sensing |
Use Scenario: Amplifying low-level bridge outputs (e.g., load cells, pressure sensors) in factory-floor weighing systems operating from 24 V rails with local 3.3 V regulation. IC Role / Device Role / Timing Role: Dual-channel instrumentation amplifier front-end (G = 100) with matched input offset drift for ratiometric accuracy over −40°C to 125°C. Use Value: 3 µV/°C max offset drift and 68 dB CMRR at 5 V ensure <0.05% full-scale error across temperature without calibration. | Use Scenario: Isolated shunt-based phase current measurement in 3-phase BLDC motor drives, where each TLV4112 channel conditions one leg's bidirectional current sense signal. IC Role / Device Role / Timing Role: Bidirectional current-sense amplifier with rail-to-rail output feeding ADC inputs; handles ±200 mA sense currents with 100 mV headroom. Use Value: 300 mA output drive sustains fast transient response during PWM switching edges, minimizing current-sense delay-induced torque ripple. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-output-current op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2541IDR | Higher 1000 mA output, wider 10 V to 40 V supply range, but larger SO-16 package and 10× higher quiescent current (7 mA/ch). | Targeted at 24 V industrial actuators; unsuitable for battery-powered or space-constrained 3.3/5 V systems. | Select when >500 mA drive or >6 V supply is required; avoid if thermal budget or board area is constrained. |
| LM7332MAX/NOPB | Lower 60 mA output, no PowerPAD, but rail-to-rail I/O, 20 MHz GBW, and lower cost; SO-8 package. | Designed for general-purpose signal conditioning-not coil/solenoid driving-where output current <100 mA suffices. | Choose for cost-sensitive, low-power analog front-ends; not a functional substitute for TLV4112IDGNR's 300 mA capability. |
Compared with OPA2541IDR and LM7332MAX/NOPB, TLV4112IDGNR uniquely balances 300 mA output drive, 2.5–6 V operation, MSOP PowerPAD thermal efficiency, and industrial temperature rating - making it optimal for compact, battery-aware, or thermally demanding 5 V actuator interfaces.
Availability
TLV4112IDGNR is available at Aetrix Electronics and suitable for industrial motor control, precision actuation, sensor signal conditioning, and embedded power interface applications requiring stable component supply across extended temperature ranges and high-reliability production cycles.
Supply support for TLV4112IDGNR 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, embedded processing, and connectivity technologies, with decades of expertise in precision amplifiers and power-efficient signal chains.
The TLV4112IDGNR belongs to TI's TLV411x family of high-output-current operational amplifiers, engineered specifically for replacing discrete transistor buffers in solenoid, relay, and piezoelectric driver circuits while maintaining precision DC performance.
FAQ
What is the maximum continuous output current specification for TLV4112IDGNR?
The TLV4112IDGNR delivers ±320 mA peak output current at 5 V (25°C), with a guaranteed continuous output current of >300 mA per channel when junction temperature is maintained ≤105°C. In the MSOP PowerPAD™ package, this rating is thermally sustainable due to θJA = 52.7°C/W - enabling reliable operation in industrial ambient temperatures up to 125°C with proper PCB copper area.
Does TLV4112IDGNR include a shutdown feature?
No, TLV4112IDGNR does not include a shutdown pin. Unlike TLV4110 and TLV4113, the TLV4112 variant omits the SHDN terminal. Its pinout consists solely of two independent op-amp channels (8 pins total), with no dedicated enable/disable control. Power management must be implemented externally via supply rail switching or logic-controlled bias networks.
What package type is used for TLV4112IDGNR, and why is it critical for performance?
TLV4112IDGNR uses the 8-pin MSOP PowerPAD™ (DGN) package, which integrates an exposed thermal pad on the underside. This design achieves θJA = 52.7°C/W - over 3× better than standard SOIC-8 (176°C/W). The thermal pad must be soldered to a PCB ground plane with ≥5 thermal vias to realize full 300 mA continuous output capability and prevent thermal shutdown in high-power applications.
Can TLV4112IDGNR drive capacitive loads, and what design guidance applies?
Yes, TLV4112IDGNR can drive capacitive loads up to 1 nF stably. For loads >1 nF (e.g., piezo actuators or long cables), TI recommends adding a series resistor (RNULL ≤20 Ω) between the output and load to preserve phase margin ≥66°. This snubber network prevents ringing and oscillation while maintaining 0.7 µs settling time to 0.1% for 1 V steps.
What is the input offset voltage specification for TLV4112IDGNR over temperature?
The TLV4112IDGNR has a maximum input offset voltage of 4000 µV across its full industrial temperature range (−40°C to 125°C), with typical value of 175 µV at 25°C. Its offset voltage drift is rated at 3 µV/°C (typical), ensuring predictable, low-drift performance in precision sensor interfaces where ratiometric accuracy is critical across wide ambient conditions.
TLV4112IDGNR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-HVSSOP
TLV4112IDGNR FAQ
1.How can I place an order for TLV4112IDGNR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV4112IDGNR 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 TLV4112IDGNR reliable?
The price and inventory of TLV4112IDGNR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV4112IDGNR is usually 5 days.
3.What payment methods are accepted for TLV4112IDGNR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV4112IDGNR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV4112IDGNR?
TLV4112IDGNR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV4112IDGNR 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 TLV4112IDGNR?
For technical support, including TLV4112IDGNR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV4112IDGNR requirements.
6.How does Aetrix verify that TLV4112IDGNR is sourced from the original manufacturer or authorized distributors?
All TLV4112IDGNR 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 TLV4112IDGNR meets industry standards.
7.What is the process for return or replacement of TLV4112IDGNR?
All TLV4112IDGNR units undergo pre-shipment inspection (PSI). If there is an issue with TLV4112IDGNR, 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 TLV4112IDGNR part is unused and in its original packaging.
Return procedure for TLV4112IDGNR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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