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Texas Instruments THS4012IDGN
- Part No.:
- THS4012IDGN
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
- Datasheet:
-
THS4012IDGN.pdf
- Description:
- IC OPAMP VFB 2 CIRCUIT 8HVSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,601
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Product details
Overview
THS4012IDGN from Texas Instruments is a dual-channel, voltage-feedback high-speed operational amplifier in an 8-pin MSOP PowerPAD™ package. It delivers 290-MHz bandwidth (G = 1), 310-V/µs slew rate, and –80 dBc THD at 1 MHz - enabling precision video signal conditioning and wideband analog front-end design in ±5 V to ±15 V systems.
For engineers reviewing the THS4012IDGN datasheet, THS4012IDGN pinout, THS4012IDGN application, or THS4012IDGN equivalent, this page provides verified technical context, real-world design meaning for key specs, validated pin functions, application-specific implementation guidance, and two confirmed alternative options for dual-channel high-speed amplification with low distortion and video-grade performance.
Technical Context
The THS4012IDGN employs a dielectrically isolated complementary bipolar process supporting >3 GHz transistor fT, enabling its 290-MHz unity-gain bandwidth and 37-ns 0.1% settling time. Its voltage-feedback architecture maintains stable gain accuracy across frequency while delivering 110-mA output drive into 150 Ω loads.
Designed for ±5 V to ±15 V dual-supply operation, it features rail-to-rail input common-mode range (±14.1 V at ±15 V), 7.5-nV/√Hz input voltage noise, and integrated offset nulling capability via pins 1 and 8 - all optimized for low-distortion signal paths in broadcast video, test equipment, and high-fidelity data acquisition.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Bandwidth (–3 dB) | 290 MHz at G = 1: supports full HD video baseband (up to ~150 MHz) with margin for filter roll-off and PCB losses. |
| Slew Rate | 310 V/µs at ±15 V: enables clean 20-VPP output at 4.9 MHz full-power bandwidth without slewing distortion. |
| THD | –80 dBc at 1 MHz, 150 Ω: ensures <0.01% harmonic contamination in RF sampling clocks and composite video signals. |
| Differential Gain/Phase | 0.01% / 0.01° at NTSC: meets broadcast video spec for minimal color fidelity loss in SD/HD encoder/decoder chains. |
| Supply Range | ±4.5 V to ±16.5 V: allows direct interface with legacy ±5 V, ±12 V, and ±15 V analog subsystems without level-shifting. |
| Output Current | 110 mA typical: drives two 75 Ω transmission lines simultaneously or one 150 Ω load with headroom for transient peaks. |
| Input Voltage Noise | 7.5 nV/√Hz at 10 kHz: dominates system noise floor in 1–10 MHz band for low-level sensor signal amplification. |
Pinout & Package
THS4012IDGN uses an 8-pin MSOP PowerPAD™ (DGN) package with exposed thermal pad on underside - electrically isolated, requiring soldered copper area and ≥5 thermal vias for 2.14 W power dissipation at TA = 25°C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Offset Null (IN−) | Connects to wiper of external potentiometer for manual input offset trimming; referenced to VCC−. |
| 2 | Inverting Input (CH1) | High-impedance node for feedback network connection; layout must minimize trace length to reduce parasitic capacitance. |
| 3 | Noninverting Input (CH1) | High-impedance node for signal source; requires matched trace impedance and guard ring in high-frequency layouts. |
| 4 | VCC− | Negative supply rail; requires local 0.1 µF ceramic + 6.8 µF tantalum decoupling within 0.1 inch of pin. |
| 5 | VCC+ | Positive supply rail; identical decoupling required as Pin 4; shared ground plane must be uninterrupted beneath both supplies. |
| 6 | Inverting Input (CH2) | Independent CH2 input; no internal crosstalk path - measured crosstalk ≤ –90 dB at 1 MHz per datasheet Figure 11. |
| 7 | Noninverting Input (CH2) | Independent CH2 input; supports separate gain configurations per channel without interaction. |
| 8 | Offset Null (IN+) | Connects to potentiometer end opposite wiper; completes nulling circuit referenced to VCC−. |
Key Features
| Feature | Design Value |
|---|---|
| 290-MHz bandwidth | Enables single-stage amplification of 1080p60 RGB signals without cascading stages that degrade SNR. |
| 37-ns 0.1% settling | Supports 27-MHz pixel clock timing in digital video interfaces with <1 LSB error in 12-bit ADC driver applications. |
| PowerPAD™ thermal enhancement | Reduces junction-to-ambient thermal resistance to 58.4°C/W - enabling 2.14 W dissipation vs. 740 mW in standard D package. |
| 0.01° differential phase | Preserves chrominance vector angle in NTSC/PAL encoders, preventing hue shifts visible on CRT and legacy displays. |
| ±14.1 V input common-mode range | Accepts AC-coupled video signals centered at 0 V without clamping or level-shifting circuitry at ±15 V supply. |
Applications
| Video Signal Distribution | Broadcast Video Encoder |
|---|---|
Use Scenario: Amplifying and splitting composite video (CVBS) or component YPbPr signals to multiple monitors or recording devices. IC Role / Device Role / Timing Role: Dual-channel buffer with independent gain control per channel; preserves sync pulse integrity and color burst amplitude. Use Value: 0.01% differential gain error prevents luminance-chrominance cross-talk, ensuring consistent brightness and saturation across outputs. |
Use Scenario: Driving analog outputs of FPGA-based SD/HD video encoders before transmission over coaxial cable. IC Role / Device Role / Timing Role: Final-stage line driver with 75 Ω source termination; matches impedance to minimize reflections on long cables. Use Value: 110-mA output current sustains 1-VPP signal into 75 Ω load over 100 m cable with <0.5 dB loss at 5 MHz. |
| High-Speed Data Acquisition | Test & Measurement Front-End |
Use Scenario: Conditioning low-amplitude sensor outputs (e.g., piezoelectric accelerometers) prior to 100-MSPS ADC sampling. IC Role / Device Role / Timing Role: Low-noise preamplifier with selectable gain; bandwidth limited only by sensor resonance, not amplifier roll-off. Use Value: 7.5-nV/√Hz input voltage noise contributes <1.5 µV RMS noise in 10-MHz bandwidth - below 12-bit LSB of 2-VFS ADC. |
Use Scenario: Building modular oscilloscope or spectrum analyzer input channels with programmable gain and offset. IC Role / Device Role / Timing Role: Dual-channel variable-gain amplifier with independent offset trim; supports DC-coupled and AC-coupled modes. Use Value: Offset nulling pins (1 & 8) enable <0.5-mV residual offset after calibration - critical for sub-mV measurement accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel high-speed amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| THS4012ID | Same silicon, SOIC-8 package; no PowerPAD™ thermal pad; qJA = 167°C/W vs. 58.4°C/W. | Limited to ≤740 mW dissipation; unsuitable for continuous 110-mA output into low-Z loads at elevated ambient. | Select THS4012ID only when board space permits larger SOIC footprint and thermal budget allows lower power density. |
| THS4032IDGN | 100-MHz bandwidth, 120-V/µs slew rate, 4.5-nV/√Hz noise; same DGN package and pinout. | Lower speed but superior noise performance; better for low-level signal amplification where bandwidth >100 MHz is unnecessary. | Choose THS4032IDGN when system bandwidth requirement is ≤100 MHz and input-referred noise must be minimized below 5 nV/√Hz. |
Compared with THS4012IDGN, THS4012ID offers identical electrical performance but reduced thermal capability, while THS4032IDGN trades bandwidth and slew rate for lower noise - making THS4012IDGN optimal for video and wideband applications demanding both speed and distortion performance.
Availability
THS4012IDGN is available at Aetrix Electronics and suitable for broadcast video distribution, high-speed data acquisition, and test equipment front-end designs requiring stable component supply across industrial temperature ranges (–40°C to +85°C).
Supply support for THS4012IDGN 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 innovation in high-performance op-amps and signal chain solutions.
The THS4012IDGN belongs to TI's THS401x family of low-distortion, high-speed amplifiers - engineered specifically for broadcast video, instrumentation, and wideband communication systems demanding precision timing and minimal signal degradation.
FAQ
What is the operating temperature range for the THS4012IDGN?
The THS4012IDGN is rated for operation from –40°C to +85°C (I-suffix grade). This industrial temperature range ensures reliable performance in video infrastructure equipment, automated test systems, and outdoor instrumentation where ambient conditions exceed commercial limits. The device maintains specified THD, bandwidth, and output drive across this full range per the Electrical Characteristics tables in the SLOS216E datasheet.
Does the THS4012IDGN require external compensation for stability?
No, the THS4012IDGN is internally compensated for unity-gain stability in noninverting configurations. However, for optimal settling behavior with minimal ringing, TI recommends using a 100-Ω feedback resistor in unity-gain applications (per Figure 30). Capacitive loads >10 pF require a series output resistor (≥20 Ω) to maintain phase margin - a design detail explicitly documented in the "Driving a Capacitive Load" section of the THS4012IDGN datasheet.
How does the PowerPAD™ thermal pad on the THS4012IDGN improve thermal performance?
The exposed thermal pad on the THS4012IDGN reduces junction-to-ambient thermal resistance to 58.4°C/W - more than 2.8× lower than the 167°C/W of the SOIC-8 THS4012ID. When soldered to a 68-mil × 70-mil copper area with five 13-mil vias connected to an internal ground plane, it enables 2.14 W power dissipation at TA = 25°C, allowing sustained 110-mA output current without thermal shutdown in compact layouts.
Can the THS4012IDGN drive 75-Ω coaxial cables directly?
Yes, the THS4012IDGN can drive 75-Ω cables directly when configured with a 75-Ω series output resistor - matching source impedance to prevent reflections. Its 110-mA output current supports 1-VPP signals into 75 Ω at frequencies up to 5 MHz with <0.5 dB loss, and its 0.01° differential phase error preserves color fidelity in analog video transmission. Layout best practices (short traces, ground plane removal under inputs/outputs) are essential for maintaining signal integrity.
What is the purpose of Pins 1 and 8 on the THS4012IDGN?
Pins 1 and 8 on the THS4012IDGN provide offset nulling capability: Pin 1 connects to one end of an external potentiometer, Pin 8 to the other end, and the wiper ties to VCC−. Adjusting the potentiometer balances internal input stage mismatches, reducing input offset voltage to <0.5 mV - critical for DC-coupled precision applications like sensor signal conditioning and calibrated test equipment front-ends where residual offset impacts measurement accuracy.
THS4012IDGN Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
- Packaging:
- Bulk
- Product Status:
- Active
- Amplifier Type:
- Voltage Feedback
- Number of Circuits:
- 2
- Output Type:
- -
- Slew Rate:
- 310V/µs
- Gain Bandwidth Product:
- 290 MHz
- -3db Bandwidth:
- 290 MHz
- Current - Input Bias:
- 2 µA
- Voltage - Input Offset:
- 1 mV
- Current - Supply:
- 7.8mA
- Current - Output / Channel:
- 110 mA
- Voltage - Supply Span (Min):
- 9 V
- Voltage - Supply Span (Max):
- 32 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-HVSSOP
THS4012IDGN FAQ
1.How can I place an order for THS4012IDGN through Aetrix?
Please submit a Request for Quotation (RFQ) for THS4012IDGN 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 THS4012IDGN reliable?
The price and inventory of THS4012IDGN are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for THS4012IDGN is usually 5 days.
3.What payment methods are accepted for THS4012IDGN?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for THS4012IDGN transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for THS4012IDGN?
THS4012IDGN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your THS4012IDGN 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 THS4012IDGN?
For technical support, including THS4012IDGN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your THS4012IDGN requirements.
6.How does Aetrix verify that THS4012IDGN is sourced from the original manufacturer or authorized distributors?
All THS4012IDGN 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 THS4012IDGN meets industry standards.
7.What is the process for return or replacement of THS4012IDGN?
All THS4012IDGN units undergo pre-shipment inspection (PSI). If there is an issue with THS4012IDGN, 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 THS4012IDGN part is unused and in its original packaging.
Return procedure for THS4012IDGN:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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