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Texas Instruments THS3110IDGNR
- Part No.:
- THS3110IDGNR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
- Datasheet:
-
THS3110IDGNR.pdf
- Description:
- IC OPAMP CFA 1 CIRCUIT 8HVSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,758
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Product details
Overview
THS3110IDGNR 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 90 MHz small-signal bandwidth (G = 2, RL = 100 Ω), 1300 V/μs slew rate, ±15 V supply operation, 260 mA output drive, and <0.013% differential gain error into 150 Ω loads - enabling multi-drop broadcast-quality video amplification.
For engineers reviewing the THS3110IDGNR datasheet, THS3110IDGNR pinout, THS3110IDGNR application, or THS3110IDGNR equivalent, key selection criteria include power-down functionality, thermal performance in MSOP-8 PowerPAD™ packaging, differential gain/phase linearity across multiple 75 Ω or 150 Ω video loads, and stability with capacitive loads up to 100 pF.
Technical Context
The THS3110IDGNR employs a current-feedback architecture with separate high-impedance noninverting input (41 MΩ) and low-impedance inverting input, enabling wide bandwidth independent of closed-loop gain. Its transimpedance gain of 1 MΩ supports precise current-to-voltage conversion in high-speed driver stages.
Integrated power-down logic (PD pin) reduces quiescent current from 4.8 mA to 270 μA while maintaining defined REF pin voltage range (VS– to VS+ – 4 V). The device features matched input bias currents (≤20 μA max), low 3 nV/√Hz voltage noise, and robust 75–150 Ω transmission-line drive capability for composite video signals.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Small-signal BW | 90 MHz at G = 2, RL = 100 Ω - enables full HD video bandwidth without gain peaking |
| Slew rate | 1300 V/μs - supports 8-VPP output swings at >10 MHz without distortion |
| Differential gain | 0.013% (PAL) - meets broadcast-grade video fidelity requirements over temperature |
| Output current | ±260 mA - drives ≥8 parallel 150 Ω video loads simultaneously |
| Supply range | ±5 V to ±15 V - compatible with legacy analog video rails and industrial supplies |
| Power-down IQ | 270 μA - reduces system standby power by >94% vs active mode |
| Input noise | 3 nV/√Hz voltage + 2 pA/√Hz noninverting current - preserves SNR in low-level video paths |
Pinout & Package
The THS3110IDGNR is housed in an 8-pin MSOP package with exposed PowerPAD™ thermal pad (DGN), requiring solder connection to PCB ground plane for thermal management per TI SLMA002 guidelines.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (REF) | Reference voltage input | Defines power-down threshold; valid range VS– to (VS+ – 4 V) |
| 2 (VIN−) | Inverting input | Low-impedance node for feedback network; accepts current-mode signals |
| 3 (VIN+) | Noninverting input | High-impedance (41 MΩ) node; sets DC operating point and signal path |
| 4 (VS−) | Negative supply rail | Connects to −5 V to −15 V; must be decoupled near package |
| 5 (PD) | Power-down control | Active-low enable: ≤REF + 0.8 V enables shutdown; ≥REF + 2 V disables |
| 6 (VS+) | Positive supply rail | Connects to +5 V to +15 V; requires local 0.1-μF ceramic bypass |
| 7 (VOUT) | Amplifier output | Capable of ±13.4 V swing into 100 Ω; stable with ≥10 pF capacitive load |
| 8 (NC) | No internal connection | Not bonded; leave unconnected or tie to ground for mechanical stability |
Key Features
| Feature | Design Value |
|---|---|
| Power-down function | Reduces quiescent current to 270 μA while preserving defined REF input range and fast 4-μs turn-on |
| Video-optimized linearity | Differential phase <0.033° and gain <0.013% into 150 Ω loads - meets SMPTE 253M and ITU-R BT.601 |
| Thermal-enhanced packaging | MSOP-8 PowerPAD™ achieves θJA = 58.4°C/W - enables 685 mW continuous dissipation at TA = +85°C |
| Current-feedback architecture | Bandwidth remains stable across gains (90 MHz at G = 2, 87 MHz at G = 5) - simplifies multi-gain system design |
| High-output-current drive | Delivers ±260 mA into 25 Ω - eliminates need for external buffer stages in FET/capacitive load drivers |
Applications
| Video Distribution Amplifier | High-Speed Pin Driver |
|---|---|
Use Scenario: Distributing NTSC/PAL composite video signals to 4–8 monitors or recording devices in broadcast studios. IC Role / Device Role / Timing Role: Current-feedback video buffer with gain = 2, driving multiple 75 Ω coaxial cables terminated at remote ends. Use Value: Maintains <0.013% differential gain and <0.033° differential phase across all loads - preserves color fidelity without post-correction. | Use Scenario: Driving high-capacitance test points or relay coils in automated test equipment (ATE) systems. IC Role / Device Role / Timing Role: High-slew-rate output stage delivering 8-VPP pulses with <8 ns rise/fall time into 100 pF + 50 Ω loads. Use Value: Eliminates external MOSFET buffers; 1300 V/μs slew rate ensures <27 ns settling to 0.1% for 2-VPP steps. |
| Capacitive Load Driver | Power FET Gate Driver |
Use Scenario: Directly driving piezoelectric transducers or LCD column drivers requiring high-voltage AC waveforms. IC Role / Device Role / Timing Role: Voltage-controlled current source delivering ±13.4 V into 100 Ω with 0.15 Ω closed-loop output impedance. Use Value: Stable operation with 100 pF capacitive loads without external isolation resistors - verified via TI Figure 8 RISO curves. | Use Scenario: Switching enhancement-mode N-channel power MOSFETs in motor control inverters with 10–100 nF gate capacitance. IC Role / Device Role / Timing Role: High-current gate driver sourcing/sinking 260 mA to charge/discharge gates rapidly. Use Value: Reduces switching losses by achieving <4 ns turn-on delay and full gate voltage swing within 100 ns. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed current-feedback amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| THS3111IDGNR | Lacks power-down pin; identical AC/DC specs, same MSOP-8 PowerPAD™ package | Preferred where always-on operation is required and standby power is not constrained | Select THS3111IDGNR when power-down functionality is unnecessary and BOM consolidation is prioritized |
| LMH6723MA/NOPB | Lower 650 V/μs slew rate; 1.2 GHz gain-bandwidth; no integrated power-down; SOIC-8 only | Better suited for RF IF amplification than video distribution due to higher GBW but poorer video linearity | Choose LMH6723MA/NOPB for wideband RF gain blocks where differential gain/phase specs are not critical |
Compared with THS3111IDGNR and LMH6723MA/NOPB, the THS3110IDGNR uniquely combines broadcast-grade video linearity, integrated power-down, and MSOP-8 thermal performance - making it optimal for space-constrained, multi-load video systems requiring low standby power.
Availability
THS3110IDGNR is available at Aetrix Electronics and suitable for video distribution amplifiers, high-speed pin drivers, capacitive load drivers, and power FET gate drivers requiring stable component supply across industrial temperature ranges (–40°C to +85°C).
Supply support for THS3110IDGNR 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 company specializing in analog and embedded processing technologies, with leadership in high-performance op-amps and precision signal chain solutions.
The THS3110 product line was engineered for demanding video, instrumentation, and high-speed analog applications requiring low noise, high output current, and robust thermal performance in compact packages.
FAQ
What is the maximum number of 150 Ω video loads the THS3110IDGNR can drive while maintaining broadcast video specifications?
The THS3110IDGNR maintains differential gain <0.013% and differential phase <0.033° into up to eight 150 Ω loads under standard conditions (G = 2, RF = 1 kΩ, VS = ±15 V), as confirmed by TI SLOS422E Figure 29 and Figure 30. Performance degrades beyond eight loads due to cumulative loading effects on bandwidth and linearity.
Does the THS3110IDGNR require external compensation when driving capacitive loads?
Yes - the THS3110IDGNR requires external series isolation resistance (RISO) for stability with capacitive loads >10 pF. TI recommends 54.9 Ω for 22 pF and 39.2 Ω for 47 pF loads (SLOS422E Figure 8). Omitting RISO risks peaking or oscillation, especially above 10 MHz.
How does the power-down feature of the THS3110IDGNR affect its output state and reference pin behavior?
When enabled, the THS3110IDGNR's output enters high-impedance state (not clamped), and quiescent current drops to 270 μA. The REF pin must remain within VS– to (VS+ – 4 V); if left floating, undefined behavior may occur. PD pin bias current is 11 μA regardless of state.
What thermal considerations apply to the THS3110IDGNR's MSOP-8 PowerPAD™ package?
The THS3110IDGNR's DGN package requires the exposed PowerPAD™ to be soldered to a minimum 3″ × 3″ copper plane for thermal dissipation. Without this, θJA rises from 58.4°C/W to >100°C/W, risking junction temperature exceedance above 685 mW at TA = +85°C per TI SLMA002 guidelines.
Can the THS3110IDGNR operate from a single +30 V supply instead of dual ±15 V rails?
Yes - the THS3110IDGNR supports single-supply operation from +10 V to +30 V (absolute max 33 V). However, input common-mode range shrinks to ±12.5 V at ±15 V, and output swing reduces to ±12 V into 100 Ω. For single-supply video use, level-shifting circuitry is required to maintain signal integrity.
THS3110IDGNR 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:
- 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
THS3110IDGNR FAQ
1.How can I place an order for THS3110IDGNR through Aetrix?
Please submit a Request for Quotation (RFQ) for THS3110IDGNR 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 THS3110IDGNR reliable?
The price and inventory of THS3110IDGNR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for THS3110IDGNR is usually 5 days.
3.What payment methods are accepted for THS3110IDGNR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for THS3110IDGNR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for THS3110IDGNR?
THS3110IDGNR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your THS3110IDGNR 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 THS3110IDGNR?
For technical support, including THS3110IDGNR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your THS3110IDGNR requirements.
6.How does Aetrix verify that THS3110IDGNR is sourced from the original manufacturer or authorized distributors?
All THS3110IDGNR 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 THS3110IDGNR meets industry standards.
7.What is the process for return or replacement of THS3110IDGNR?
All THS3110IDGNR units undergo pre-shipment inspection (PSI). If there is an issue with THS3110IDGNR, 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 THS3110IDGNR part is unused and in its original packaging.
Return procedure for THS3110IDGNR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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