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Texas Instruments THS3110IDGN
- Part No.:
- THS3110IDGN
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
- Datasheet:
-
THS3110IDGN.pdf
- Description:
- IC OPAMP CFA 1 CIRCUIT 8HVSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,361
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Product details
Overview
THS3110IDGN from Texas Instruments is a low-noise, high-voltage current-feedback operational amplifier optimized for video distribution and high-speed analog signal conditioning. It delivers 260 mA output drive, 1300 V/μs slew rate, 90 MHz bandwidth (G = 2, RL = 100 Ω), ±15 V supply operation, and features an integrated power-down pin. It is used in broadcast-grade video routing systems requiring minimal differential gain/phase error across multiple 75-Ω loads.
For engineers reviewing the THS3110IDGN datasheet, THS3110IDGN pinout, THS3110IDGN application, or THS3110IDGN equivalent, key selection criteria include its current-feedback architecture, power-down functionality, thermal performance in MSOP-8 PowerPAD™ packaging, and verified video distortion metrics (0.013% PAL differential gain, 0.033° PAL differential phase) under multi-load conditions.
Technical Context
The THS3110IDGN employs a current-feedback topology with separate high-impedance noninverting input (41 MΩ, 0.4 pF) and low-impedance inverting input, enabling wide bandwidth independent of closed-loop gain. Its transimpedance gain of 1 MΩ supports stable operation with capacitive loads up to 100 pF when using recommended RISO compensation.
It integrates a dedicated power-down pin (PD) referenced to internal REF, enabling quiescent current reduction from 4.8 mA to 270 μA with 4 μs turn-on delay. The device operates over –40°C to +85°C and requires thermal connection of the PowerPAD™ to a PCB copper plane for rated 1.71 W dissipation at TA = +25°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Small-signal BW | 90 MHz at G = 2, RL = 100 Ω - enables full HD video signal amplification without attenuation |
| Slew rate | 1300 V/μs at G = 2, VO = 8 VPP - supports fast transient response for composite sync pulses |
| Output current | ±260 mA into RL = 25 Ω - drives ≥8 parallel 75-Ω video lines with <0.033° differential phase |
| Differential gain | 0.013% (PAL), 0.011% (NTSC) - meets SMPTE RP-168 broadcast linearity requirements |
| Input voltage noise | 3 nV/√Hz above 20 kHz - preserves SNR in baseband video signals up to 10 MHz |
| Power-down IQ | 270 μA max - reduces system standby power by >94% while retaining fast wake-up |
| Supply range | ±5 V to ±15 V - compatible with legacy analog video rails and modern dual-rail designs |
Pinout & Package
The THS3110IDGN is housed in an 8-pin MSOP package with exposed PowerPAD™ thermal pad (DGN suffix). The PowerPAD™ must be soldered to a thermally conductive PCB plane to achieve rated power dissipation (1.71 W at TA = +25°C) and prevent junction temperature exceedance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (NC) | No internal connection | Unused; leave unconnected or ground per layout best practice |
| 2 (VIN−) | Inverting input | Low-impedance node; connects to feedback network for current-feedback configuration |
| 3 (VIN+) | Noninverting input | High-impedance (41 MΩ), low-capacitance (0.4 pF) node for signal source coupling |
| 4 (VS−) | Negative supply rail | Connects to −15 V (or −5 V); requires local 0.1 μF bypass capacitor |
| 5 (REF) | Power-down reference | Internal bias point; PD pin threshold defined relative to REF (VS− to VS+ − 4 V range) |
| 6 (VS+) | Positive supply rail | Connects to +15 V (or +5 V); requires local 0.1 μF bypass capacitor |
| 7 (VOUT) | Amplifier output | Capable of ±13.4 V swing into 100 Ω; designed for direct 75-Ω transmission line termination |
| 8 (PD) | Power-down control | Active-high enable; ≥REF + 2 V disables amplifier, reducing IQ to 270 μA |
Key Features
| Feature | Design Value |
|---|---|
| Current-feedback architecture | Bandwidth remains stable across gains (90 MHz at G = 2, 87 MHz at G = 5), simplifying multi-gain video system design |
| Power-down function | Reduces quiescent current from 4.8 mA to 270 μA with 4 μs wake-up, enabling dynamic power gating in multi-channel video routers |
| Video-optimized linearity | Differential phase ≤0.033° and gain ≤0.013% into 8×150 Ω loads - exceeds NTSC/PAL broadcast specifications |
| High-output-current drive | ±260 mA into 25 Ω allows direct driving of coaxial cables and active back-termination networks without external buffers |
| Thermally enhanced MSOP-8 | PowerPAD™ package achieves θJA = 58.4°C/W - enables 685 mW continuous dissipation at +85°C ambient |
Applications
| Broadcast Video Distribution | Professional Camera Signal Conditioning |
|---|---|
|
Use Scenario: Amplifying and distributing composite or component video signals from a single source to eight monitors or recording devices in studio environments. IC Role / Device Role / Timing Role: High-current video buffer with unity or G = 2 gain, maintaining signal integrity across 75-Ω coaxial runs. Use Value: Enables simultaneous distribution to 8×150 Ω loads with <0.033° differential phase error - eliminates need for discrete emitter-follower arrays. |
Use Scenario: Driving high-resolution analog outputs (e.g., SDI analog backup, RGBHV) from professional digital cinema cameras. IC Role / Device Role / Timing Role: Final-stage line driver ensuring fast edge fidelity and minimal overshoot on sync pulses and active video. Use Value: 1300 V/μs slew rate and 90 MHz bandwidth preserve sub-ns timing margins required for 1080p60 analog timing compliance. |
| Medical Imaging Display Interface | Test Equipment Signal Generation |
|
Use Scenario: Buffering high-fidelity grayscale video from ultrasound or MRI systems to diagnostic displays with strict linearity requirements. IC Role / Device Role / Timing Role: Low-noise, DC-coupled video amplifier preserving contrast and grayscale accuracy across full 0–10 V range. Use Value: 3 nV/√Hz input voltage noise and <12 mV input offset ensure <0.1% intensity error in 10-bit medical display chains. |
Use Scenario: Output stage in arbitrary waveform generators or video pattern generators requiring programmable amplitude and fast settling. IC Role / Device Role / Timing Role: Wideband, high-slew-rate output driver supporting repetitive 10-V step signals with 27 ns 0.1% settling. Use Value: 27 ns settling to 0.1% and 250 ns to 0.01% enables accurate generation of high-frequency test patterns (e.g., multiburst, sweep). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed video amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| THS3111IDGN | No power-down pin; identical AC/DC specs and pinout except PD/REF pins repurposed as NC | Preferred where always-on operation is acceptable and board space permits removal of PD control logic | Select THS3111IDGN if power gating is unnecessary and BOM simplification is prioritized |
| LMH6702MA/NOPB | Voltage-feedback architecture; 1.7 GHz GBW but lower output current (120 mA), no integrated power-down | Better suited for RF IF amplification than multi-load video distribution due to limited drive capability | Choose LMH6702MA/NOPB only for single-load, high-frequency (>100 MHz) small-signal gain applications |
Compared with THS3111IDGN, the THS3110IDGN adds power-down control at no AC performance cost; compared with LMH6702MA/NOPB, it trades bandwidth for robust 260 mA drive and video-optimized linearity - making it uniquely suitable for broadcast infrastructure.
Availability
THS3110IDGN is available at Aetrix Electronics and suitable for broadcast video distribution, professional camera interfaces, and medical imaging display systems requiring stable component supply across extended temperature ranges (–40°C to +85°C) and long production lifecycles.
Supply support for THS3110IDGN 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 high-speed amplifiers and precision signal chain solutions.
The THS3110IDGN belongs to TI's high-voltage current-feedback op-amp product line, engineered specifically for demanding video, instrumentation, and high-fidelity analog signal distribution applications.
FAQ
What is the maximum number of 75-Ω video loads the THS3110IDGN can drive while maintaining broadcast linearity?
The THS3110IDGN maintains differential phase ≤0.033° and differential gain ≤0.013% when driving up to eight 150-Ω loads - equivalent to sixteen 75-Ω coaxial lines with proper termination. This is validated per Figure 29 and Figure 30 in the SLOS422E datasheet under ±15 V supply, G = 2, and RF = 1 kΩ conditions. THS3110IDGN's 260 mA output current ensures stable operation without external current boosters.
How does the power-down feature of the THS3110IDGN operate, and what is its impact on system timing?
The THS3110IDGN's power-down pin (Pin 8) is referenced to the internal REF pin (Pin 5). When PD ≥ REF + 2 V, the amplifier enters low-power mode with quiescent current reduced to 270 μA. Turn-on delay is 4 μs to 90% of final output, and turn-off delay is 6 μs to 10% of final output. This enables precise, microsecond-scale power gating in multi-channel video switchers without disrupting frame sync. THS3110IDGN defaults to enabled if PD is left floating or grounded.
Is the THS3110IDGN pin-compatible with the THS3111IDGN, and what design changes are needed for substitution?
Yes, THS3110IDGN and THS3111IDGN share identical MSOP-8 (DGN) pinout and AC/DC specifications. The only difference is that Pins 5 (REF) and 8 (PD) are functional on THS3110IDGN but are No Connect (NC) on THS3111IDGN. To substitute THS3111IDGN for THS3110IDGN, disconnect PD/REF traces and leave those pins unconnected; no PCB revision is required. THS3110IDGN remains the only option if power-down control is needed.
What thermal design considerations apply to the THS3110IDGN's PowerPAD™ package?
The THS3110IDGN's exposed PowerPAD™ must be soldered to a minimum 3-inch × 3-inch (76.2 mm × 76.2 mm) copper plane for rated thermal performance. With this layout, θJA = 58.4°C/W and maximum power dissipation reaches 685 mW at +85°C ambient. Failure to thermally connect the PowerPAD™ risks junction temperature exceeding +125°C, triggering permanent reliability degradation. Thermal vias under the pad are strongly recommended per TI Technical Brief SLMA002. THS3110IDGN's θJC = 4.7°C/W confirms the critical role of the pad-to-PCB interface.
Does the THS3110IDGN support single-supply operation, and what are the limitations?
Yes, THS3110IDGN supports single-supply operation from 10 V to 30 V per Absolute Maximum Ratings. However, its input common-mode range is limited to ±12.5 V at ±15 V supplies and only ±2.8 V at ±5 V supplies - meaning true rail-to-rail input is not supported. For single-supply use (e.g., +12 V), the input must be biased within the valid CMVR (e.g., 2–10 V), and output swing is similarly constrained (±12 V into 100 Ω at ±15 V, but only ±3.5 V at ±5 V). THS3110IDGN's performance is optimized for dual-supply video applications.
THS3110IDGN 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:
- Current Feedback
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 1300V/µs
- Gain Bandwidth Product:
- -
- -3db Bandwidth:
- 100 MHz
- Current - Input Bias:
- 1.5 µA
- Voltage - Input Offset:
- 3 mV
- Current - Supply:
- 4.8mA
- Current - Output / Channel:
- 260 mA
- Voltage - Supply Span (Min):
- 10 V
- Voltage - Supply Span (Max):
- 30 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-HVSSOP
THS3110IDGN FAQ
1.How can I place an order for THS3110IDGN through Aetrix?
Please submit a Request for Quotation (RFQ) for THS3110IDGN 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 THS3110IDGN reliable?
The price and inventory of THS3110IDGN are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for THS3110IDGN is usually 5 days.
3.What payment methods are accepted for THS3110IDGN?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for THS3110IDGN transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for THS3110IDGN?
THS3110IDGN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your THS3110IDGN 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 THS3110IDGN?
For technical support, including THS3110IDGN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your THS3110IDGN requirements.
6.How does Aetrix verify that THS3110IDGN is sourced from the original manufacturer or authorized distributors?
All THS3110IDGN 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 THS3110IDGN meets industry standards.
7.What is the process for return or replacement of THS3110IDGN?
All THS3110IDGN units undergo pre-shipment inspection (PSI). If there is an issue with THS3110IDGN, 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 THS3110IDGN part is unused and in its original packaging.
Return procedure for THS3110IDGN:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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