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Texas Instruments THS3095DDA
- Part No.:
- THS3095DDA
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-PowerSOIC (0.154", 3.90mm Width)
- Datasheet:
-
THS3095DDA.pdf
- Description:
- IC OPAMP CFA 1 CIRC 8SOPWRPAD
- Quantity:
- Payment:
- Shipping:
Inventory:404
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Product details
Overview
THS3095DDA from Texas Instruments is a high-voltage, low-distortion current-feedback operational amplifier in an 8-pin SOIC PowerPAD™ package, featuring ±5 V to ±16 V supply operation, 6000 V/μs slew rate (G = 5), 305 MHz small-signal bandwidth (G = 2, RL = 100 Ω), and ±310 mA output drive-designed for high-voltage arbitrary waveform generators and pin drivers.
For engineers reviewing the THS3095DDA datasheet, THS3095DDA pinout, THS3095DDA application, or THS3095DDA equivalent, key selection criteria include power-down functionality, harmonic distortion performance at 10 MHz, voltage noise (1.1 nV/√Hz), and compatibility with high-capacitive-load piezo drivers requiring fast settling and linear large-signal swing.
Technical Context
The THS3095DDA implements a current-feedback architecture with separate inverting and noninverting inputs, enabling wide bandwidth independent of closed-loop gain. Its transimpedance gain stage delivers high slew rate and low distortion by minimizing internal voltage-mode limitations.
Power-down is implemented via dedicated PD and REF pins: PD ≤ REF + 0.8 V disables the amplifier, reducing quiescent current from 9.5 mA to 500 μA; REF accepts a reference voltage between VS− and VS+ − 4 V, supporting flexible enable threshold configuration.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | ±5 V to ±16 V - supports dual-rail high-voltage signal generation without external level-shifting |
| Slew Rate | 6000 V/μs at G = 5, VO = 20 VPP - enables clean 20-VPP step response in <2 ns with minimal slewing-induced distortion |
| Small-Signal Bandwidth | 305 MHz at G = 2, RL = 100 Ω - maintains flat gain up to 100 MHz for RF and fast pulse applications |
| Harmonic Distortion | –84 dBc HD2 / –99 dBc HD3 at 10 MHz, RL = 1 kΩ - meets spectral purity requirements for precision waveform synthesis |
| Voltage Noise | 1.1 nV/√Hz above 10 kHz - preserves SNR in high-gain, wideband front-end stages |
| Output Current Drive | ±310 mA - directly drives low-impedance loads (e.g., 40 Ω FET gates or piezo stacks) without external buffers |
| Power-Down Quiescent Current | 500 μA at TA = 25°C - reduces system standby power in battery- or thermally constrained test equipment |
Pinout & Package
THS3095DDA uses an 8-pin SOIC PowerPAD™ (DDA) package with exposed thermal pad on underside for enhanced heat dissipation. Pin 1 is REF (voltage reference input for PD threshold), Pin 8 is PD (active-high power-down control), and Pins 1, 5, 8 are not connected internally except as specified.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| REF (Pin 1) | Voltage reference input | Sets power-down activation threshold; accepts VS− to VS+ − 4 V; enables programmable enable logic |
| PD (Pin 8) | Power-down control input | High (≥ REF + 2 V) enables amplifier; low (≤ REF + 0.8 V) disables output and reduces IQ to 500 μA |
| VIN− (Pin 2) | Inverting input | Current-input node of CFB topology; low impedance (~30 Ω) enables stable high-frequency feedback |
| VIN+ (Pin 3) | Noninverting input | High-impedance voltage input (0.7 MΩ); used for unity-gain buffer or noninverting configurations |
| VOUT (Pin 6) | Amplifier output | Capable of ±310 mA into 40 Ω; requires external series resistor (RISO) when driving >10 pF capacitive loads |
| VS− (Pin 4) | Negative supply rail | Connects to system negative rail; supports up to ±16 V operation with thermal derating |
| VS+ (Pin 7) | Positive supply rail | Connects to system positive rail; must be decoupled with ≥1 μF ceramic + 10 μF tantalum per rail |
Key Features
| Feature | Design Value |
|---|---|
| Integrated power-down circuit | Dedicated PD and REF pins allow precise, externally controlled shutdown with 60 μs turn-on and 150 μs turn-off delay |
| Low 2nd/3rd harmonic distortion | –84 dBc HD2 and –99 dBc HD3 at 10 MHz into 1 kΩ enable high-fidelity arbitrary waveform generation |
| High slew rate with large-signal linearity | 6000 V/μs slew supports 20-VPP output at 5× gain while maintaining <0.1% settling error in 12.5 ns |
| Optimized for capacitive load driving | Recommended RISO network (e.g., 22.1 Ω for 47 pF) ensures stability with piezo actuators and long PCB traces |
| Wide supply range with rail-to-rail output swing | Delivers ±12.1 V into 100 Ω at ±15 V supplies - maximizes dynamic range in high-voltage test instrumentation |
Applications
| High-Voltage Arbitrary Waveform Generators | Pin Drivers |
|---|---|
Use Scenario: Generating programmable 10–20 VPP, 1–10 MHz waveforms for semiconductor ATE stimulus and calibration. IC Role / Device Role / Timing Role: Final-stage high-speed, high-voltage output driver amplifying DAC outputs before DUT connection. Use Value: 305 MHz bandwidth and –99 dBc HD3 ensure spectral fidelity across multi-MHz sweep ranges without post-filtering. | Use Scenario: Driving TTL/CMOS or high-threshold MOSFET gates in automated test handlers with nanosecond timing margins. IC Role / Device Role / Timing Role: Low-latency, high-current buffer translating logic-level signals to 15-V switching rails. Use Value: 6000 V/μs slew and ±310 mA sourcing/sinking guarantee sub-2 ns edge transitions into 50 Ω loads. |
| Power-FET Drivers | Source Measurement Unit (SMU) |
Use Scenario: Direct gate drive of high-side N-channel power FETs in precision current sources and programmable loads. IC Role / Device Role / Timing Role: High-voltage, high-slew buffer isolating control logic from power stage while maintaining fast switching. Use Value: ±16 V supply capability and 205 MHz large-signal bandwidth enable clean 100-ns gate charge/discharge pulses. | Use Scenario: Precision force-and-measure circuitry in semiconductor parametric testers requiring bidirectional ±10 V, ±100 mA sourcing. IC Role / Device Role / Timing Role: Output amplifier in four-quadrant SMU feedback loop delivering accurate voltage/current compliance. Use Value: Low 1.1-nV/√Hz voltage noise and ±310 mA drive support sub-μA current measurement accuracy at high speed. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-voltage current-feedback amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| THS3091DDA | No power-down pin; identical bandwidth (305 MHz), slew rate (6000 V/μs), and noise (1.1 nV/√Hz); same DDA package | Lacks PD functionality; suitable where continuous operation is required and board space prohibits adding external enable logic | Select THS3091DDA only if power-down is unnecessary and pin count must remain minimal without REF/PD overhead |
| THS3491DDA | Higher 900 MHz SSBW and 8000 V/μs slew; wider 17.3 mA IQ; no power-down; ±16 V supply; same DDA package | Better suited for >200 MHz RF signal chains but exhibits higher distortion (–70 dBc HD3 at 10 MHz) and noise (1.7 nV/√Hz) | Choose THS3491DDA when bandwidth and slew dominate over distortion and noise; avoid for precision waveform synthesis |
Compared with THS3091DDA, THS3095DDA adds power-down control at minor IQ cost, while THS3491DDA trades distortion and noise for raw speed-making THS3095DDA optimal for high-fidelity, power-aware high-voltage analog output stages.
Availability
THS3095DDA is available at Aetrix Electronics and suitable for high-voltage arbitrary waveform generators, pin drivers, power-FET drivers, and source measurement units requiring stable component supply across industrial test equipment lifecycles.
Supply support for THS3095DDA 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 headquartered in Dallas, Texas, specializing in analog and embedded processing technologies with broad industrial, automotive, and communications product portfolios.
The THS309x family was designed specifically for high-voltage, high-fidelity analog output stages in automated test equipment, semiconductor characterization systems, and precision instrumentation requiring low distortion, fast settling, and robust capacitive load drive.
FAQ
What is the power-down behavior of the THS3095DDA?
The THS3095DDA enters low-power standby mode when the PD pin voltage falls below REF + 0.8 V, reducing quiescent current from 9.5 mA to 500 μA. Turn-on delay is 60 μs to 90% of final output; turn-off delay is 150 μs to 10% of final output. The REF pin accepts a user-defined reference voltage between VS− and VS+ − 4 V, allowing flexible enable threshold design in the THS3095DDA.
Does the THS3095DDA support single-supply operation?
Yes, the THS3095DDA supports single-supply operation from 10 V to 32 V, with recommended common-mode input range of ±3.3 V at ±5 V supply and ±13.3 V at ±15 V supply. Input bias currents and offset voltage remain within datasheet limits across this range, and the THS3095DDA maintains full output swing capability when properly biased-enabling use in unipolar high-voltage signal chains.
What is the maximum capacitive load the THS3095DDA can drive stably?
The THS3095DDA can drive up to 100 pF stably when paired with the recommended series isolation resistor (RISO): 15.8 Ω for 100 pF, 22.1 Ω for 47 pF, and 30.9 Ω for 22 pF. These values are derived from TI's Figure 7-8 and ensure phase margin >45° across temperature and process variation. Exceeding these RISO/load combinations risks peaking or oscillation in the THS3095DDA output stage.
How does the THS3095DDA compare to the THS3091DDA in terms of pin compatibility?
The THS3095DDA and THS3091DDA share identical 8-pin SOIC PowerPAD™ (DDA) footprints and pin assignments for VIN−, VIN+, VOUT, VS−, and VS+. However, THS3095DDA uses Pin 1 as REF and Pin 8 as PD, whereas THS3091DDA leaves both pins unconnected. Thus, THS3095DDA is not pin-compatible with THS3091DDA without PCB modification to route REF and PD signals-though the THS3095DDA can replace THS3091DDA in new designs with added control logic.
What thermal considerations apply to the THS3095DDA in continuous high-output operation?
The THS3095DDA has a junction-to-board thermal resistance (RθJB) of 32.6 °C/W in the DDA package. At ±15 V supply and ±310 mA output into 40 Ω, power dissipation exceeds 4.5 W; without adequate PCB copper area under the PowerPAD™ and thermal vias, junction temperature may exceed 125°C. Derating is required above 70°C ambient, and the THS3095DDA must be mounted on ≥2 in² 2-oz copper with ≥6 thermal vias for sustained high-current operation.
THS3095DDA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-PowerSOIC (0.154", 3.90mm Width)
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Amplifier Type:
- Current Feedback
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 7300V/µs
- Gain Bandwidth Product:
- -
- -3db Bandwidth:
- 235 MHz
- Current - Input Bias:
- 4 µA
- Voltage - Input Offset:
- 900 µV
- Current - Supply:
- 9.5mA
- Current - Output / Channel:
- 280 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-SO PowerPad
THS3095DDA FAQ
1.How can I place an order for THS3095DDA through Aetrix?
Please submit a Request for Quotation (RFQ) for THS3095DDA 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 THS3095DDA reliable?
The price and inventory of THS3095DDA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for THS3095DDA is usually 5 days.
3.What payment methods are accepted for THS3095DDA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for THS3095DDA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for THS3095DDA?
THS3095DDA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your THS3095DDA 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 THS3095DDA?
For technical support, including THS3095DDA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your THS3095DDA requirements.
6.How does Aetrix verify that THS3095DDA is sourced from the original manufacturer or authorized distributors?
All THS3095DDA 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 THS3095DDA meets industry standards.
7.What is the process for return or replacement of THS3095DDA?
All THS3095DDA units undergo pre-shipment inspection (PSI). If there is an issue with THS3095DDA, 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 THS3095DDA part is unused and in its original packaging.
Return procedure for THS3095DDA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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