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Texas Instruments TLV4112CD
- Part No.:
- TLV4112CD
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLV4112CD.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:672
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Product details
Overview
TLV4112CD 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. It operates from 2.5 V to 6 V, features 2.7 MHz unity-gain bandwidth, 1.5 V/µs slew rate, and 700 µA per channel supply current across 0°C to 70°C commercial temperature range.
For engineers reviewing the TLV4112CD datasheet, TLV4112CD pinout, TLV4112CD application, or TLV4112CD equivalent, key selection considerations include its high-output-drive capability, SOIC-8 thermal limitations (350 mW RMS), rail-to-rail output swing, and absence of shutdown functionality-distinguishing it from TLV4110/TLV4113 variants.
Technical Context
The TLV4112CD implements a complementary bipolar input stage with Class AB output stage optimized for high-current sourcing and sinking. Its internal architecture supports stable operation into capacitive loads ≥1 nF only when series RNULL ≤20 Ω is used, per design guidance in Figure 27.
It lacks integrated shutdown logic-unlike TLV4110 and TLV4113-so power control requires external circuitry. The device's thermal performance in SOIC-8 package is constrained by θJA = 176°C/W, limiting continuous output current to 350 mA at TJ ≤ 105°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Drive | >300 mA per channel at 5 V; enables direct coil driving without external transistors |
| Rail-to-Rail Output | Swings within 100 mV of rails at 100 mA load; preserves dynamic range in low-voltage systems |
| Unity-Gain Bandwidth | 2.7 MHz; supports stable closed-loop gain ≥1 with 100 Ω/10 pF load |
| Slew Rate | 1.5 V/µs at VDD = 5 V; limits large-signal settling time to ≤1.3 µs (0.01%) |
| Supply Voltage Range | 2.5 V to 6 V; compatible with Li-ion, 3.3 V, and 5 V rails without level shifting |
| Supply Current | 700 µA per channel at 25°C; total 1.4 mA quiescent draw for dual-channel operation |
| Operating Temperature | 0°C to 70°C (C-suffix); validated for commercial-grade embedded and industrial control environments |
Pinout & Package
TLV4112CD is supplied in an 8-pin SOIC (Small Outline Integrated Circuit) package with standard D suffix footprint. Thermal performance is limited to 350 mW RMS dissipation; peak pulses up to 700 mW are allowed if RMS remains below limit.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OUT | Channel 1 output | High-current source/sink node; rated for ±320 mA at 5 V (measured at 0.5 V from rail) |
| 1IN− | Channel 1 inverting input | Differential input terminal; CMRR = 68 dB at 5 V, supports VICR = 0 to VDD−1.5 V |
| 1IN+ | Channel 1 non-inverting input | Differential input terminal; input bias current ≤100 pA (C-suffix, full range) |
| GND | Analog ground reference | Common return for both channels; must be low-impedance to sustain 300+ mA transient currents |
| VDD | Positive supply rail | Single supply input (2.5–6 V); PSRR = 70 dB at 5 V, rejecting supply noise up to 100 kHz |
| 2OUT | Channel 2 output | Independent high-current output; crosstalk < −60 dB at 100 kHz (Figure 23) |
| 2IN− | Channel 2 inverting input | Matched to Channel 1; input offset voltage max 4000 µV over full temperature range |
| 2IN+ | Channel 2 non-inverting input | Matched to Channel 1; differential input resistance ≥1000 GΩ ensures minimal loading |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Delivers full 0–5 V output range at 100 mA load, maximizing signal fidelity in 5 V systems |
| High output current | Exceeds 300 mA per channel continuously-enables direct solenoid, relay, and LED array drive |
| Low quiescent current | 700 µA per channel allows battery-powered operation with multi-day runtime in low-duty-cycle apps |
| Stable into capacitive loads | Phase margin ≥66° with 100 Ω/10 pF; requires RNULL ≤20 Ω for loads >1 nF (Figure 27) |
| Wide supply range | Operates from 2.5 V (single-cell LiFePO₄) to 6 V (industrial 5 V + tolerance), reducing BOM count |
Applications
| Industrial Sensor Signal Conditioning | Automotive Solenoid Drivers |
|---|---|
Use Scenario: Amplifying low-level bridge sensor outputs (e.g., pressure, load cell) before ADC sampling in PLC modules. IC Role / Device Role / Timing Role: Dual-channel buffer and gain stage with rail-to-rail output preserving full-scale resolution at 3.3 V. Use Value: 68 dB CMRR at 5 V rejects common-mode noise from motor drives; 2.7 MHz GBWP supports anti-alias filtering at ≥100 kHz. | Use Scenario: Directly driving 12 V automotive solenoids (e.g., fuel injectors, HVAC actuators) from 5 V microcontroller GPIO. IC Role / Device Role / Timing Role: High-current voltage follower replacing discrete MOSFET + gate driver stages. Use Value: >300 mA sourcing eliminates external transistors; 1.5 V/µs slew rate ensures <2 µs actuation response time. |
| Medical Infusion Pump Motor Control | Test Equipment Precision Current Sources |
Use Scenario: Generating precise 0–5 V control signals for stepper motor drivers in portable infusion pumps. IC Role / Device Role / Timing Role: Dual op-amp configured as precision voltage-controlled current source (Howland) for microstepping. Use Value: 4000 µV max input offset ensures <0.1% current error; 0.035% THD+N maintains waveform purity at 1 kHz. | Use Scenario: Building programmable 4–20 mA loop transmitters in automated test equipment calibration modules. IC Role / Device Role / Timing Role: Dual op-amp implementing precision I/V conversion and output buffering with Kelvin sensing. Use Value: 700 µA/channel supply enables low-power loop design; 1000 GΩ input resistance prevents loading of DAC references. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-output-drive operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV4112ID | Same dual-channel architecture and SOIC-8 pinout, but rated for −40°C to 125°C industrial temperature range; higher max supply current (1500 µA) | Required for under-hood automotive or outdoor industrial deployments where ambient exceeds 70°C | Select TLV4112ID when operating ambient exceeds 70°C or junction temperature must stay ≤105°C under sustained 300 mA load |
| OPA2544T | Higher output current (±500 mA), wider supply (±15 V or 30 V single), but larger SOIC-16 package and 3× higher quiescent current (2.1 mA/ch) | Used in high-voltage industrial actuator interfaces where 6 V max supply is insufficient | Choose OPA2544T only when >300 mA or >6 V operation is mandatory; TLV4112CD offers better power efficiency and smaller footprint for 5 V systems |
Compared with TLV4112ID, the TLV4112CD trades extended temperature range for lower cost and reduced quiescent current-ideal for cost-sensitive commercial equipment. Against OPA2544T, it sacrifices voltage headroom and peak current for compact size and battery-friendly 1.4 mA total supply draw.
Availability
TLV4112CD is available at Aetrix Electronics and suitable for industrial sensor conditioning, automotive solenoid control, medical infusion pump motor interfaces, and test equipment current source designs requiring stable component supply with traceable sourcing and lifecycle continuity.
Supply support for TLV4112CD 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 solutions with decades of op-amp innovation.
The TLV411x product line was engineered specifically for high-current, single-supply buffer and driver applications-replacing discrete transistor stages in space-constrained, thermally demanding systems.
FAQ
What is the maximum continuous output current for TLV4112CD in SOIC-8 package?
The TLV4112CD supports 350 mA continuous output current per channel in SOIC-8 (D) package at junction temperature ≤105°C. This limit arises from θJA = 176°C/W and 350 mW RMS power dissipation ceiling. Exceeding this risks thermal runaway; use MSOP PowerPAD (DGN) for >350 mA continuous loads.
Does TLV4112CD include a shutdown pin?
No, TLV4112CD does not have a shutdown pin. Shutdown functionality is exclusive to TLV4110 and TLV4113 variants. TLV4112CD requires external power gating or enable circuitry for low-power states. Its pinout omits SHDN terminals entirely-confirmed in the "TLV411x PACKAGE PIN OUTS" diagram for D/DGN/P packages.
Can TLV4112CD drive capacitive loads directly?
TLV4112CD is not stable driving capacitive loads >1 nF without compensation. Per Figure 27 and Application Information, a series RNULL ≤20 Ω must be placed between output and load to maintain ≥66° phase margin. Driving 10 nF directly causes ringing; adding RNULL restores stability while preserving bandwidth.
What is the input common-mode voltage range for TLV4112CD?
The input common-mode voltage range for TLV4112CD is 0 V to VDD−1.5 V at recommended operating conditions. At VDD = 5 V, this spans 0–3.5 V; at VDD = 2.5 V, it is 0–1.0 V. Operation outside this range degrades CMRR and may cause phase reversal-verified in electrical characteristics Table on page 4.
Is TLV4112CD pin-compatible with other TLV411x family members in SOIC-8?
Yes, TLV4112CD shares identical SOIC-8 (D) pinout with TLV4112ID and TLV4112CP-confirmed in "TLV411x PACKAGE PIN OUTS" diagram. However, TLV4110/TLV4113 variants add SHDN pins and differ in pin count (8 vs 14), making them incompatible in same footprint. Always verify temperature suffix (C/I) and function (shutdown/no-shutdown) before substitution.
TLV4112CD Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Bulk
- 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:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
TLV4112CD FAQ
1.How can I place an order for TLV4112CD through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV4112CD 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 TLV4112CD reliable?
The price and inventory of TLV4112CD are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV4112CD is usually 5 days.
3.What payment methods are accepted for TLV4112CD?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV4112CD transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV4112CD?
TLV4112CD orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV4112CD 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 TLV4112CD?
For technical support, including TLV4112CD datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV4112CD requirements.
6.How does Aetrix verify that TLV4112CD is sourced from the original manufacturer or authorized distributors?
All TLV4112CD 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 TLV4112CD meets industry standards.
7.What is the process for return or replacement of TLV4112CD?
All TLV4112CD units undergo pre-shipment inspection (PSI). If there is an issue with TLV4112CD, 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 TLV4112CD part is unused and in its original packaging.
Return procedure for TLV4112CD:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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