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Texas Instruments THS3201DGKR
- Part No.:
- THS3201DGKR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
THS3201DGKR.pdf
- Description:
- IC OPAMP CFA 1 CIRCUIT 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,777
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Product details
Overview
THS3201DGKR from Texas Instruments is a 1.8-GHz current-feedback amplifier (CFA) optimized for wideband, low-distortion signal conditioning in high-speed test equipment and ADC/DAC driver applications. It delivers 6700 V/µs slew rate at G = 2, –78 dBc IMD3 at 20 MHz, 1.65 nV/√Hz input voltage noise, ±7.5 V supply operation, and 100 mA output drive into 100 Ω.
For engineers reviewing the THS3201DGKR datasheet, THS3201DGKR pinout, THS3201DGKR application, or THS3201DGKR equivalent, key selection criteria include unity-gain bandwidth, large-signal settling time, harmonic distortion at RF/multi-tone conditions, thermal performance in MSOP-8, and compatibility with ±3.3 V to ±7.5 V supplies for arbitrary waveform generation.
Technical Context
The THS3201DGKR employs a current-feedback architecture with ultra-low inverting input impedance (~11 Ω) and high noninverting input impedance (~780 kΩ), enabling stable gain-setting via external feedback resistors without degrading bandwidth. Its transimpedance gain exceeds 120 kΩ over temperature, supporting precise current-to-voltage conversion.
Designed for ±3.3 V to ±7.5 V dual-supply operation, the device maintains sub-1 ns rise/fall times across 4-V steps and achieves 0.1% settling in 20 ns at G = –2. Output stage delivers symmetrical sourcing/sinking capability up to 100 mA while maintaining <0.01 Ω closed-loop output impedance at 1 MHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Unity-Gain Bandwidth | 1.8 GHz - Enables stable operation at high closed-loop gains without phase-margin collapse typical of voltage-feedback amplifiers. |
| Slew Rate | 6700 V/µs (G = 2, RL = 100 Ω, 10-V step) - Supports fast transient response for pulse and video signal buffering without slew-induced distortion. |
| IMD3 | –78 dBc at 20 MHz (G = 10, RL = 100 Ω, 2-VPP envelope) - Critical for multi-tone ATE and communications test where intermodulation spurs must remain below system noise floor. |
| Input Voltage Noise | 1.65 nV/√Hz (f > 10 MHz) - Low enough to preserve SNR in high-resolution ADC front-ends operating above 10 MHz. |
| Output Drive | 100 mA sourcing/sinking (RL = 20 Ω) - Sufficient to drive 50 Ω transmission lines or multiple parallel loads without gain compression. |
| Supply Range | ±3.3 V to ±7.5 V - Allows flexible integration into both low-voltage portable test gear and high-swing lab-grade instrumentation. |
| Operating Temperature | –40°C to +85°C - Qualified for industrial and automated test environments with extended thermal cycling requirements. |
Pinout & Package
THS3201DGKR is housed in an 8-pin MSOP package (DGK) with exposed pad for thermal enhancement. Pin 1 is IN–, Pin 2 is IN+, Pin 3 is VS–, Pin 4 is VS+, Pin 5 is VOUT, Pins 6–8 are no-connect (NC).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN–) | Inverting input | Low-impedance node (~11 Ω) accepting feedback current; sets closed-loop gain with RF resistor. |
| 2 (IN+) | Noninverting input | High-impedance node (~780 kΩ); used for single-ended or differential input configurations. |
| 3 (VS–) | Negative supply rail | Connects to negative supply; internal biasing requires stable ±3.3 V to ±7.5 V rails. |
| 4 (VS+) | Positive supply rail | Connects to positive supply; decoupling capacitors required per TI layout guidelines. |
| 5 (VOUT) | Amplifier output | Capable of ±5.5 V swing into 100 Ω; drives coaxial cables, ADC inputs, or DAC buffers directly. |
| 6–8 (NC) | No internal connection | Not bonded; may be left floating or grounded for mechanical stability per PCB design rules. |
Key Features
| Feature | Design Value |
|---|---|
| Current-feedback architecture | Enables bandwidth independence from closed-loop gain-critical for variable-gain test systems requiring consistent frequency response. |
| Low distortion at high frequencies | –78 dBc IMD3 at 20 MHz allows clean multi-tone excitation in RF component characterization without spectral regrowth. |
| Thermally enhanced MSOP-8 | Exposed PowerPAD-compatible pad enables junction-to-board thermal resistance as low as 54.2°C/W, supporting sustained 100 mA output at +85°C ambient. |
| Wide supply range | Operates from ±3.3 V to ±7.5 V, permitting use in battery-powered portable analyzers and high-voltage bench instruments without level-shifting circuitry. |
| Fast settling with minimal overshoot | 20 ns to 0.1% for 2-V step ensures accurate pulse fidelity in digital pattern generators and high-speed data acquisition triggers. |
Applications
| Arbitrary Waveform Generator (AWG) Output Stage | High-Speed ADC Driver |
|---|---|
Use Scenario: Driving 50 Ω coaxial loads with programmable waveforms up to 100 MHz bandwidth. IC Role / Device Role / Timing Role: Final-stage buffer amplifier delivering full-scale ±5.5 V swing and sub-1 ns edge fidelity. Use Value: Maintains <0.01° differential phase error across NTSC/PAL video bandwidths and preserves harmonic integrity up to 100 MHz. | Use Scenario: Conditioning analog signals prior to sampling by 14-bit, 250 MSPS ADCs in radar receivers. IC Role / Device Role / Timing Role: Low-noise, low-distortion gain block with matched input impedance to minimize reflection-induced sampling errors. Use Value: 1.65 nV/√Hz input voltage noise and –78 dBc IMD3 ensure >72 dB SNR and <–80 dBc SFDR at Nyquist. |
| Automated Test Equipment (ATE) Signal Source | Digital Pattern Generator Output Buffer |
Use Scenario: Generating calibrated stimulus signals for DUT testing across 10 kHz–100 MHz range. IC Role / Device Role / Timing Role: Precision gain-controlled output stage with programmable amplitude and offset. Use Value: ±0.7 mV input offset and ±10 µV/°C drift enable <0.01% absolute accuracy over temperature without recalibration. | Use Scenario: Amplifying TTL/CMOS logic edges to full-swing analog levels for mixed-signal SoC validation. IC Role / Device Role / Timing Role: High-slew-rate translator converting digital timing edges into clean analog pulses. Use Value: 6700 V/µs slew rate and 0.7 ns rise time eliminate edge rounding that causes setup/hold violations in high-speed interfaces. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar current-feedback amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| THS3202DGNR | Dual-channel version in same MSOP-8-PP package; higher 2-GHz bandwidth but increased quiescent current (21 mA/channel vs 18 mA). | Required when simultaneous dual-path signal generation or differential drive is needed. | Select THS3202DGNR only if dual-channel functionality justifies higher power and cost; otherwise THS3201DGKR offers better channel isolation and lower crosstalk. |
| OPA695IDBVR | Single-channel CFA with 1.7-GHz bandwidth, ±5-V supply only, lower 1000 V/µs slew rate, and 2.1 nV/√Hz input noise. | Better suited for compact, low-power portable instruments where ±7.5 V swing is unnecessary. | Choose OPA695IDBVR for space-constrained designs needing <15 mA supply current and 5-V rail compatibility; avoid when >±5.5 V output swing or <2 ns settling is required. |
Compared with THS3202DGNR and OPA695IDBVR, THS3201DGKR uniquely balances 1.8-GHz bandwidth, ±7.5 V operation, and 6700 V/µs slew rate in a thermally robust MSOP-8, making it optimal for high-fidelity arbitrary waveform generation where single-channel precision and voltage headroom are critical.
Availability
THS3201DGKR is available at Aetrix Electronics and suitable for automated test equipment, high-resolution ADC drivers, and arbitrary waveform generator output stages requiring stable component supply across industrial temperature ranges and long production lifecycles.
Supply support for THS3201DGKR 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 amplifier design and manufacturing.
The THS3201DGKR belongs to TI's precision current-feedback amplifier product line, engineered specifically for wideband, low-distortion signal conditioning in test and measurement, high-speed data acquisition, and video signal processing systems.
FAQ
What is the maximum recommended supply voltage for THS3201DGKR?
The absolute maximum supply voltage for THS3201DGKR is ±8.25 V, but the recommended operating range is ±3.3 V to ±7.5 V. Operating beyond ±7.5 V risks exceeding junction temperature limits and degrading distortion performance. TI specifies 14–21 mA quiescent current within this range, with thermal derating required above +85°C ambient.
Does THS3201DGKR require external compensation components?
No, THS3201DGKR is internally compensated and stable for gains ≥ +1 with standard feedback resistor values (e.g., RF = 768 Ω at G = +2). The datasheet provides recommended RF/RG combinations for gains of +1, +2, +5, and +10; no external capacitors or resistors are needed for basic operation, though optional RISO may be added for capacitive load isolation.
Can THS3201DGKR drive a 50 Ω load effectively?
Yes, THS3201DGKR delivers ±5.5 V output swing into 100 Ω and maintains >100 mA sourcing/sinking capability into 20 Ω. When driving 50 Ω, it achieves ±5.7 V swing at +25°C and supports 0.7 ns rise time with minimal overshoot-verified in TI's application circuits using 50 Ω source termination and proper PCB layout.
What is the thermal performance of THS3201DGKR in its MSOP-8 package?
THS3201DGKR in DGK (MSOP-8) has θJA = 260°C/W and θJC = 54.2°C/W. With proper thermal vias to a solid ground plane, it sustains 100 mA continuous output at +85°C ambient without exceeding the +125°C junction limit. TI recommends connecting the exposed pad to a thermally conductive plane per SLMA002/SLMA004 guidelines.
Is THS3201DGKR suitable for driving high-resolution ADCs like the ADS54J60?
Yes, THS3201DGKR is explicitly qualified for high-resolution, high-sampling-rate ADC drivers. Its 1.65 nV/√Hz input voltage noise, –78 dBc IMD3 at 20 MHz, and 20 ns 0.1% settling time meet the dynamic performance requirements of 14-bit, 500 MSPS ADCs such as the ADS54J60, especially when configured for G = +2 with matched 768 Ω feedback networks.
THS3201DGKR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Amplifier Type:
- Current Feedback
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 9800V/µs
- Gain Bandwidth Product:
- -
- -3db Bandwidth:
- 1.8 GHz
- Current - Input Bias:
- 14 µA
- Voltage - Input Offset:
- 700 µV
- Current - Supply:
- 14mA
- Current - Output / Channel:
- 115 mA
- Voltage - Supply Span (Min):
- 6.6 V
- Voltage - Supply Span (Max):
- 15 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-VSSOP
THS3201DGKR FAQ
1.How can I place an order for THS3201DGKR through Aetrix?
Please submit a Request for Quotation (RFQ) for THS3201DGKR 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 THS3201DGKR reliable?
The price and inventory of THS3201DGKR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for THS3201DGKR is usually 5 days.
3.What payment methods are accepted for THS3201DGKR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for THS3201DGKR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for THS3201DGKR?
THS3201DGKR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your THS3201DGKR 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 THS3201DGKR?
For technical support, including THS3201DGKR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your THS3201DGKR requirements.
6.How does Aetrix verify that THS3201DGKR is sourced from the original manufacturer or authorized distributors?
All THS3201DGKR 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 THS3201DGKR meets industry standards.
7.What is the process for return or replacement of THS3201DGKR?
All THS3201DGKR units undergo pre-shipment inspection (PSI). If there is an issue with THS3201DGKR, 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 THS3201DGKR part is unused and in its original packaging.
Return procedure for THS3201DGKR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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