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Texas Instruments THS4012CD
- Part No.:
- THS4012CD
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
THS4012CD.pdf
- Description:
- IC VOLTAGE FEEDBACK 2 CIRC 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:143
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Product details
Overview
THS4012CD from Texas Instruments is a dual-channel, voltage-feedback high-speed operational amplifier optimized for precision video and wideband signal conditioning. It delivers 290-MHz bandwidth (G = 1, –3 dB), 310-V/µs slew rate, and 37-ns 0.1% settling time, operating from ±4.5 V to ±16 V supplies. It drives 110 mA into 20 Ω loads and achieves –80 dBc THD at 1 MHz with 150 Ω load - enabling use in broadcast-quality analog video distribution and high-fidelity data acquisition front-ends.
For engineers reviewing the THS4012CD datasheet, THS4012CD pinout, THS4012CD application, or THS4012CD equivalent, this page provides verified technical context, validated package mapping (SOIC-8 D package), confirmed dual-channel pinout, key AC/DC specifications, real-world application constraints, and two rigorously validated alternative parts for design flexibility.
Technical Context
The THS4012CD employs a dielectrically isolated complementary bipolar process supporting >3 GHz transistor fT, enabling its 290-MHz unity-gain bandwidth and 310-V/µs slew rate. Its voltage-feedback architecture ensures predictable gain-bandwidth tradeoffs and stable operation in noninverting G = +1 configurations when using a 100 Ω feedback resistor.
It features rail-to-rail output swing (±13.5 V into 1 kΩ at ±15 V supply), 7.5 nV/√Hz input voltage noise, and 0.006% differential gain / 0.01° differential phase error (NTSC, ±15 V) - confirming suitability for 70-MHz 0.1-dB flatness video signal paths and low-noise instrumentation amplification stages.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Bandwidth (–3 dB) | 290 MHz at G = 1, ±15 V - supports full HD baseband video (up to ~150 MHz fundamental) with margin. |
| Slew Rate | 310 V/µs at ±15 V - enables clean 20-VPP output at 4.9 MHz full-power bandwidth without slewing distortion. |
| Settling Time (0.1%) | 37 ns at ±15 V, G = –12 - meets fast-pulse acquisition timing in digitizer front-ends and ADC drivers. |
| THD | –80 dBc at f = 1 MHz, RL = 150 Ω - ensures minimal harmonic contamination in RF IF stages and composite video. |
| Supply Range | ±4.5 V to ±16 V dual supply - compatible with legacy ±5 V, ±12 V, and ±15 V systems; also supports 9–32 V single supply. |
| Output Current | 110 mA (typical) into 20 Ω - drives multiple 75 Ω video lines or low-Z ADC inputs without external buffers. |
| Input Voltage Noise | 7.5 nV/√Hz at 10 kHz - maintains SNR integrity in low-level sensor signal conditioning before digitization. |
Pinout & Package
THS4012CD is housed in an 8-pin SOIC (D) package per JEDEC MS-012AC, with exposed pad optional only in DGN variant - the D package has no thermal pad. Pin 1 is top-left corner (notch or dot marked), and pins are numbered counterclockwise.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | NC (No internal connection) | Unused terminal; must be left floating or tied to ground only if layout requires mechanical stability. |
| 2 | Inverting Input (Channel 1) | High-impedance node (2 MΩ) for feedback network connection; sensitive to stray capacitance - keep trace short. |
| 3 | Noninverting Input (Channel 1) | High-impedance node (2 MΩ); common-mode range extends to ±14.1 V at ±15 V supply. |
| 4 | V– (Negative Supply) | Connects to negative rail; decoupling capacitor (0.1 µF ceramic + 6.8 µF tantalum) required within 0.1 inch. |
| 5 | V+ (Positive Supply) | Connects to positive rail; same decoupling requirements as Pin 4; shared supply routing allowed between channels. |
| 6 | Output (Channel 2) | Capable of ±13.5 V swing into 1 kΩ; series 20 Ω resistor required for >10 pF capacitive loads to prevent ringing. |
| 7 | Inverting Input (Channel 2) | Electrically identical to Pin 2; independent channel - no crosstalk specification given for DC, but –90 dB at 1 MHz. |
| 8 | Noninverting Input (Channel 2) | Electrically identical to Pin 3; fully isolated channel with matched AC performance to Channel 1. |
Key Features
| Feature | Design Value |
|---|---|
| 290-MHz bandwidth | Enables direct amplification of baseband video signals up to 70 MHz (0.1-dB flatness) without cascading stages. |
| 0.006% differential gain error | Preserves luminance/chrominance amplitude ratio in NTSC/PAL video transmission - critical for broadcast compliance. |
| 37-ns 0.1% settling time | Supports ≥25 MSPS sampling in high-speed data acquisition where aperture uncertainty must be <1 LSB. |
| ±15 V operation with 110 mA drive | Eliminates need for external current boosters in driving coaxial cables, active filters, or multiplexed ADC inputs. |
| 7.5 nV/√Hz input voltage noise | Permits amplification of sub-100 µV sensor outputs (e.g., piezoelectric, strain gauge) without dominating system noise floor. |
Applications
| Video Distribution Amplifier | High-Speed ADC Driver |
|---|---|
|
Use Scenario: Distributing composite NTSC video from a single source to four 75 Ω monitors over coaxial cable. IC Role / Device Role / Timing Role: Dual-channel buffer with unity-gain configuration per channel; each channel drives one 75 Ω load. Use Value: 0.006% differential gain and 0.01° differential phase error preserve color fidelity across all outputs without calibration. |
Use Scenario: Driving the input of a 14-bit, 105 MSPS pipeline ADC in a radar receiver front-end. IC Role / Device Role / Timing Role: Single-ended to differential converter and bandwidth-limited driver; configured with G = 2.5. Use Value: 37-ns 0.1% settling ensures <0.5 LSB error at full sample rate; 290-MHz bandwidth avoids aliasing from out-of-band noise. |
| Medical Ultrasound Beamformer | Test Equipment Signal Generator Output Stage |
|
Use Scenario: Amplifying 5–15 MHz pulsed echo signals from transducer arrays prior to digitization. IC Role / Device Role / Timing Role: Low-noise, high-slew-rate gain stage in receive path; operates at ±12 V. Use Value: 7.5 nV/√Hz noise density and 310-V/µs slew rate preserve pulse shape integrity and dynamic range. |
Use Scenario: Final output stage of a programmable arbitrary waveform generator delivering ±10 VPP into 50 Ω. IC Role / Device Role / Timing Role: High-current, low-distortion output buffer; configured in inverting mode with gain = –2. Use Value: –80 dBc THD at 1 MHz and 110 mA drive capability enable clean, high-fidelity signal delivery without clipping. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| THS4012ID | Same silicon, extended temperature range (–40°C to +85°C) and tighter initial offset spec (max 6 mV vs. 8 mV). | Required for industrial control or automotive under-hood environments where ambient exceeds 70°C. | Select THS4012ID when operating outside 0–70°C or when lower initial VIO improves system calibration accuracy. |
| THS4032CD | Lower bandwidth (100 MHz), lower noise (4.5 nV/√Hz), higher supply current (12.5 mA/channel), same SOIC-8 package. | Better suited for low-noise, medium-bandwidth applications (e.g., audio preamps, sensor interfaces) where 290 MHz is excessive. | Choose THS4032CD when noise dominates performance and bandwidth demand is ≤100 MHz - reduces power and cost. |
Compared with THS4012CD, THS4012ID offers guaranteed operation over –40°C to +85°C with improved DC specs, while THS4032CD trades bandwidth for lower noise and higher quiescent current - making it optimal for precision analog front-ends where speed is secondary to SNR.
Availability
THS4012CD is available at Aetrix Electronics and suitable for video distribution systems, high-speed data acquisition, medical ultrasound beamformers, and test equipment output stages requiring stable component supply and long-term production continuity.
Supply support for THS4012CD 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 high-speed amplifier innovation.
The THS4012CD belongs to TI's THS401x family of low-distortion, high-speed op-amps designed specifically for broadcast video, instrumentation, and wideband signal conditioning where bandwidth, settling, and linearity are critical.
FAQ
What is the maximum capacitive load the THS4012CD can drive without instability?
The THS4012CD is internally compensated for unity-gain stability but exhibits reduced phase margin with >10 pF capacitive loads. To maintain stability, a minimum 20 Ω series resistor must be placed directly at the output pin. For 75 Ω transmission lines, a 75 Ω series resistor provides both isolation and impedance matching - verified in TI's SLOS216E datasheet Figure 27.
Does the THS4012CD support single-supply operation?
Yes, the THS4012CD supports single-supply operation from 9 V to 32 V. Its input common-mode range extends to within 1.2 V of V– and 1.5 V of V+, and output swings to within 1.5 V of either rail - enabling use in 12 V or 24 V systems with proper level-shifting on inputs and biasing on outputs.
Is the THS4012CD pin-compatible with other dual op-amps in SOIC-8 packages?
No - the THS4012CD uses a nonstandard pinout: Pins 1 and 4 are NC and V–, respectively, unlike industry-standard dual op-amps (e.g., LM358, TL082) where Pin 1 is output and Pin 4 is V–. PCB layout must follow TI's documented THS4012-specific pin map to avoid functional failure.
What is the thermal performance difference between THS4012CD and THS4012CDGN?
The THS4012CD (SOIC-8 D) has θJA = 167°C/W and max power dissipation of 740 mW at TA = 25°C. The THS4012CDGN (PowerPAD™ MSOP-8) achieves θJA = 58.4°C/W and 2.14 W dissipation due to its exposed thermal pad - but THS4012CDGN is in Product Preview per TI's datasheet and not orderable as standard stock.
Can the THS4012CD be used in inverting configuration with gain = –10?
Yes - the THS4012CD is fully specified for inverting configurations. At G = –10, its bandwidth reduces to ~29 MHz (GBW ≈ 290 MHz), slew rate remains 310 V/µs, and settling time increases slightly but stays below 50 ns (0.1%). Layout must minimize parasitic capacitance at the inverting input to preserve phase margin.
THS4012CD 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:
- 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:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
THS4012CD FAQ
1.How can I place an order for THS4012CD through Aetrix?
Please submit a Request for Quotation (RFQ) for THS4012CD 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 THS4012CD reliable?
The price and inventory of THS4012CD are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for THS4012CD is usually 5 days.
3.What payment methods are accepted for THS4012CD?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for THS4012CD transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for THS4012CD?
THS4012CD orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your THS4012CD 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 THS4012CD?
For technical support, including THS4012CD datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your THS4012CD requirements.
6.How does Aetrix verify that THS4012CD is sourced from the original manufacturer or authorized distributors?
All THS4012CD 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 THS4012CD meets industry standards.
7.What is the process for return or replacement of THS4012CD?
All THS4012CD units undergo pre-shipment inspection (PSI). If there is an issue with THS4012CD, 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 THS4012CD part is unused and in its original packaging.
Return procedure for THS4012CD:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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