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Texas Instruments THS3201DR
- Part No.:
- THS3201DR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
THS3201DR.pdf
- Description:
- IC OPAMP CFA 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,687
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Product details
Overview
THS3201DR from Texas Instruments is a 1.8-GHz current-feedback amplifier (CFA) optimized for high-speed, low-distortion signal conditioning in ±7.5 V systems. It delivers 6700 V/µs slew rate (G = 2, 10-V step), –78 dBc IMD3 at 20 MHz, and 1.65 nV/√Hz input voltage noise above 10 MHz - enabling precision arbitrary waveform generation and high-resolution ADC/DAC buffering.
For engineers reviewing the THS3201DR datasheet, THS3201DR pinout, THS3201DR application, or THS3201DR equivalent, key selection criteria include its wideband current-feedback architecture, ±3.3 V to ±7.5 V dual-supply operation, 100 mA output drive capability, and SOIC-8 package thermal performance with 1.02 W power rating at TA ≤ +25°C.
Technical Context
The THS3201DR implements a current-feedback topology with ultra-low inverting input impedance (~11 Ω) and high noninverting input impedance (~780 kΩ), enabling stable gain-setting via RF/RG networks independent of closed-loop bandwidth. Its transimpedance gain exceeds 120 kΩ over temperature, supporting fast settling (20 ns to 0.1%) and near-step-independent rise/fall times.
Designed for ±7.5 V operation, it maintains 850 MHz small-signal bandwidth (–3 dB) and 380 MHz 0.1-dB flatness at G = +2, RL = 100 Ω. Distortion performance is specified with fixed RF values per gain setting (e.g., RF = 768 Ω at G = +2), and noise figure remains 11 dB across 10–100 MHz when RG = 28 Ω and RF = 255 Ω.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Unity-gain bandwidth | 1.8 GHz - defines maximum usable frequency for G = +1 configurations without phase-margin collapse. |
| Slew rate | 6700 V/µs (G = +2, 10-V step) - enables faithful reproduction of fast transient signals up to ~150 MHz edge rates. |
| IMD3 | –78 dBc at 20 MHz (G = +10, 2-VPP envelope) - critical for multi-tone ATE and broadband test equipment linearity. |
| Input voltage noise | 1.65 nV/√Hz (f > 10 MHz) - dominates system noise floor in high-frequency gain stages driving ADC inputs. |
| Output drive | 100 mA sourcing/sinking into 20 Ω - supports direct driving of 50 Ω transmission lines or multiple parallel loads. |
| Supply range | ±3.3 V to ±7.5 V - allows compatibility with legacy ±5 V and ±7.5 V test instrumentation rails. |
| Operating temperature | –40°C to +85°C - qualified for industrial-grade embedded measurement and automated test environments. |
Pinout & Package
THS3201DR is packaged in an 8-pin SOIC (D package) with PowerPAD™ thermal enhancement requiring connection to a PCB ground plane for rated 1.02 W dissipation at TA ≤ +25°C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - IN– | Inverting input | Low-impedance node (11 Ω) accepting feedback current; sets closed-loop gain with RF. |
| 2 - VS– | Negative supply | Connect to –7.5 V rail with local 0.1 µF + 10 µF decoupling; shares thermal path with PowerPAD. |
| 3 - VOUT | Amplifier output | Capable of ±5.8 V swing into 100 Ω; requires series RISO for capacitive load stability per Figure 7. |
| 4 - VS+ | Positive supply | Connect to +7.5 V rail with identical decoupling; PowerPAD thermally couples to this pin's internal plane. |
| 5 - IN+ | Noninverting input | High-impedance node (780 kΩ); used for unity-gain buffer or noninverting configurations. |
| 6–8 | No internal connection | NC pins; must remain unconnected per datasheet Note A - no tie-to-ground or routing allowed. |
Key Features
| Feature | Design Value |
|---|---|
| Current-feedback architecture | Enables bandwidth scaling with gain (e.g., 850 MHz at G = +2 vs. 1.8 GHz at G = +1), unlike voltage-feedback op amps. |
| Low distortion at high frequency | –78 dBc IMD3 at 20 MHz ensures minimal spectral regrowth in wideband signal synthesis and spectrum analyzer front-ends. |
| High slew rate with step independence | Rise/fall times remain ~0.7/0.9 ns across 4-V to 10-V steps, preserving pulse fidelity in arbitrary waveform drivers. |
| Thermally enhanced SOIC | PowerPAD™ reduces θJA to 97.5°C/W, allowing 1.02 W continuous dissipation at +25°C ambient - critical for sustained high-output operation. |
| Wide supply flexibility | Operates from ±3.3 V to ±7.5 V, supporting both modern low-voltage systems and legacy high-swing test equipment rails. |
Applications
| Arbitrary Waveform Generation | High-Speed ADC Driver |
|---|---|
Use Scenario: Driving DAC outputs in AWG systems requiring sub-nanosecond edge fidelity and multi-tone linearity. IC Role / Device Role / Timing Role: Final-stage buffer amplifying DAC output to ±5.8 V into 50 Ω loads while maintaining <0.01° differential phase error. Use Value: 6700 V/µs slew rate and –78 dBc IMD3 at 20 MHz ensure accurate reproduction of complex waveforms up to 100 MHz bandwidth. | Use Scenario: Conditioning analog signals before sampling by 14-bit, 250-MSPS ADCs in communications test receivers. IC Role / Device Role / Timing Role: Single-ended to differential driver with 380 MHz 0.1-dB flatness, minimizing passband ripple-induced ENOB loss. Use Value: 1.65 nV/√Hz input voltage noise and 100 mA drive maintain SNR > 72 dBFS at full-scale 100 MHz input tones. |
| ATE Pin Electronics | Video Signal Reconstruction |
Use Scenario: Precision voltage/current source/sink in semiconductor automatic test equipment pin cards. IC Role / Device Role / Timing Role: High-speed comparator input buffer and level-shifter with fast overdrive recovery (<100 ns). Use Value: ±7.5 V operation provides sufficient headroom for TTL/ECL/LVDS level translation; 20 ns settling to 0.1% ensures tight timing margins. | Use Scenario: Reconstructing RGB or YPbPr video signals in broadcast-quality test pattern generators. IC Role / Device Role / Timing Role: Gain-of-2 buffer with 0.004% differential gain and 0.011° differential phase error (PAL standard). Use Value: Ultra-low harmonic distortion (–64 dBc 2nd, –73 dBc 3rd at 10 MHz) preserves color fidelity and luma/chroma separation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar current-feedback amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA695ID | 1.7-GHz bandwidth, ±5-V supply only, 5.5-kΩ inverting input impedance, higher 2.1 nV/√Hz voltage noise. | Limited to lower-voltage systems; less suitable for ±7.5 V ATE or high-swing video reconstruction. | Select OPA695ID only when operating at ±5 V and bandwidth >1.7 GHz is required with relaxed noise constraints. |
| THS3202D | Dual-channel version, same 2-GHz bandwidth spec, identical SOIC-8 packaging, but 30% higher quiescent current (27 mA/channel). | Enables dual-path signal conditioning (e.g., I/Q channels) without board area penalty; not pin-compatible with THS3201DR. | Choose THS3202D when two matched CFAs are needed on one die - verify thermal derating for dual-channel 2.04 W dissipation. |
Compared with OPA695ID and THS3202D, THS3201DR uniquely balances ±7.5 V operation, 1.8-GHz bandwidth, and 1.65 nV/√Hz noise - making it optimal for high-fidelity, high-voltage arbitrary waveform and ADC driver applications where supply headroom and noise floor are co-critical.
Availability
THS3201DR is available at Aetrix Electronics and suitable for test and measurement instrumentation, automated test equipment (ATE), high-resolution ADC/DAC driver circuits, and video signal reconstruction systems requiring stable component supply and long-term industrial availability.
Supply support for THS3201DR 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 THS3201DR belongs to TI's precision high-speed CFA product line, engineered specifically for demanding applications in test equipment, ATE, and high-fidelity signal chain interfaces where bandwidth, linearity, and voltage swing are simultaneously critical.
FAQ
What is the maximum recommended supply voltage for THS3201DR?
The absolute maximum supply voltage for THS3201DR is ±8.25 V, but the recommended operating range is ±3.3 V to ±7.5 V. Operating at ±7.5 V enables full specification compliance including 1.8-GHz unity-gain bandwidth and 6700 V/µs slew rate. Exceeding ±7.5 V risks parametric degradation and reduced reliability per TI's Absolute Maximum Ratings table.
Does THS3201DR require external compensation for stability?
THS3201DR does not require external compensation for basic configurations, but stability depends critically on proper RF/RG selection and layout. For capacitive loads >10 pF, a series isolation resistor (RISO) between output and load is mandatory - values range from 15 Ω (100 pF) to 30 Ω (22 pF) per Figure 7. The SOIC-8 PowerPAD™ must also be soldered to a thermal plane to prevent thermal runaway.
Can THS3201DR drive a 50 Ω load directly?
Yes, THS3201DR can drive a 50 Ω load directly with ±5.8 V output swing at ±7.5 V supplies, delivering up to 100 mA sourcing/sinking current. However, for optimal stability and flat frequency response, a 20–30 Ω series RISO is recommended when driving reactive 50 Ω loads (e.g., coaxial cables), and layout must minimize parasitic capacitance at the output pin.
What is the purpose of the NC pins on THS3201DR?
Pins 6, 7, and 8 on THS3201DR are explicitly designated as "No internal connection" per the datasheet. They must remain unconnected - neither grounded nor routed - as any connection may introduce parasitic coupling, degrade PSRR, or cause oscillation. This NC designation is confirmed in the PIN ASSIGNMENTS section and Note A of the TI SLOS416C datasheet.
Is THS3201DR suitable for single-supply operation?
THS3201DR supports single-supply operation from 6.6 V to 15 V (e.g., +12 V with ground), but its input common-mode range is limited to ±2.5 V at VS = ±5 V and ±5 V at VS = ±7.5 V. For true single-supply use, level-shifting circuitry or AC-coupled inputs are required to keep the IN+ and IN– nodes within their valid CMVR - the device itself is not rail-to-rail input or output.
THS3201DR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Not For New Designs
- 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-SOIC
THS3201DR FAQ
1.How can I place an order for THS3201DR through Aetrix?
Please submit a Request for Quotation (RFQ) for THS3201DR 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 THS3201DR reliable?
The price and inventory of THS3201DR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for THS3201DR is usually 5 days.
3.What payment methods are accepted for THS3201DR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for THS3201DR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for THS3201DR?
THS3201DR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your THS3201DR 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 THS3201DR?
For technical support, including THS3201DR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your THS3201DR requirements.
6.How does Aetrix verify that THS3201DR is sourced from the original manufacturer or authorized distributors?
All THS3201DR 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 THS3201DR meets industry standards.
7.What is the process for return or replacement of THS3201DR?
All THS3201DR units undergo pre-shipment inspection (PSI). If there is an issue with THS3201DR, 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 THS3201DR part is unused and in its original packaging.
Return procedure for THS3201DR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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