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Texas Instruments THS4032CD
- Part No.:
- THS4032CD
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
THS4032CD.pdf
- Description:
- IC VOLTAGE FEEDBACK 2 CIRC 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,444
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Product details
Overview
THS4032CD from Texas Instruments is a dual-channel, voltage-feedback operational amplifier optimized for low-noise, high-speed signal conditioning in precision analog systems. It delivers 100MHz small-signal bandwidth (G = 2, –3dB), 100V/μs slew rate, 1.2nV/√Hz input voltage noise, –90dBc THD at 1MHz (RL = 1kΩ), and ±13.6V output swing (±15V supply), serving as a high-fidelity buffer/driver for SAR ADCs and video signal chains.
For engineers reviewing the THS4032CD datasheet, THS4032CD pinout, THS4032CD application, or THS4032CD equivalent, key selection considerations include its dual-channel SOIC-8 package, rail-to-rail output capability under heavy load, unity-gain stability, thermal performance in D-package (RθJA = 120.6°C/W), and compatibility with ±4.5V to ±16V dual supplies or 9V–32V single supplies.
Technical Context
The THS4032CD employs a complementary bipolar 30V process enabling GHz fT transistors, yielding wide bandwidth and fast settling (70ns to 0.1%). Its voltage-feedback architecture supports stable operation at unity gain (120MHz bandwidth) and provides high drive strength (200mA per channel) without sacrificing noise or distortion performance.
It operates across industrial temperature range (–40°C to +85°C), features matched dual channels with independent inputs/outputs, and maintains low input offset voltage (0.3mV typ) and drift (2μV/°C) - critical for DC-coupled precision amplification stages preceding high-resolution data converters.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Small-signal BW | 100MHz at G = 2 (–3dB); enables accurate amplification of multi-MHz video, ultrasound, and DAQ signals without phase loss. |
| Slew rate | 100V/μs (±15V); supports clean 20Vpp step response in <100ns - essential for driving fast-switching ADC inputs. |
| Input voltage noise | 1.2nV/√Hz (>10kHz); preserves SNR in low-level sensor and imaging front-ends where noise dominates dynamic range. |
| THD @ 1MHz | –90dBc (RL = 1kΩ); ensures minimal harmonic contamination in communication and vector signal transceiver applications. |
| Output current | 200mA per channel (±15V); drives 150Ω video loads or multiple parallel ADC inputs without gain compression. |
| Supply range | ±4.5V to ±16V dual or 9V–32V single; accommodates legacy industrial rails and modern low-voltage systems with headroom margin. |
| Input offset voltage | 0.3mV (typ, 25°C); reduces DC error in closed-loop gain stages, minimizing calibration burden in precision instrumentation. |
Pinout & Package
THS4032CD is available in an 8-pin SOIC (D) package (4.9mm × 6mm), rated for industrial temperature range (–40°C to +85°C). The package includes exposed thermal pad only in HVSSOP variants - not applicable to the 'D' suffix.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OUT | Channel 1 output | High-current, low-impedance output node; requires local 0.1μF bypass and series isolation resistor for >10pF capacitive loads. |
| 1IN– | Channel 1 inverting input | Differential input terminal; connects to feedback network; sensitive to PCB layout parasitics due to high bandwidth. |
| 1IN+ | Channel 1 noninverting input | High-impedance input node; used for single-ended or differential signal injection; benefits from symmetric trace routing. |
| VCC– | Negative power supply | Reference for dual-supply operation; must be decoupled with 0.1μF ceramic capacitor placed ≤5mm from pin. |
| 2IN+ | Channel 2 noninverting input | Independent input for second channel; electrically isolated from Channel 1 - enables dual-path signal processing. |
| 2IN– | Channel 2 inverting input | Second channel feedback node; identical AC/DC specs to Channel 1 - supports matched gain/phase in stereo or I/Q paths. |
| 2OUT | Channel 2 output | Fully buffered output; shares same drive capability and noise profile as 1OUT - suitable for parallel ADC buffering. |
| VCC+ | Positive power supply | Primary supply rail; supplies both channels; requires low-ESR bulk + ceramic decoupling for transient current demands. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low voltage noise | 1.2nV/√Hz enables high-SNR amplification of microvolt-level signals from piezoelectric sensors or photodiode TIA outputs. |
| 100V/μs slew rate | Supports full-scale 20Vpp transitions in <200ns - critical for maintaining fidelity in pulsed ultrasound and high-speed DAQ capture. |
| Dual-channel matching | Matched gain, bandwidth, and distortion between channels allows precise I/Q signal processing without inter-channel skew or amplitude imbalance. |
| Unity-gain stability | 120MHz unity-gain bandwidth permits use in gain-of-1 buffers without external compensation - simplifies design of ADC front-end drivers. |
| High output drive | 200mA per channel sustains ±13.6V swing into 1kΩ and ±12.9V into 250Ω - eliminates need for external output buffers in video line drivers. |
Applications
| Video Signal Amplification | Ultrasound Beamforming |
|---|---|
Use Scenario: Driving 75Ω coaxial cables in HD/SD video distribution systems with minimal group delay variation and differential gain/phase error. IC Role / Device Role / Timing Role: Dual-channel THS4032CD serves as composite video driver and sync separator amplifier, providing gain, level shifting, and impedance matching. Use Value: Achieves 0.02% differential gain error and 0.025° phase error at ±15V supply - meets SMPTE 259M broadcast timing compliance. | Use Scenario: Buffering and summing time-delayed echo signals from 64+ transducer elements in portable ultrasound scanners. IC Role / Device Role / Timing Role: THS4032CD channels condition analog beamformed outputs prior to high-speed digitization, preserving pulse shape integrity. Use Value: 100MHz bandwidth and 70ns settling ensure sub-10ns timing resolution across all channels - critical for spatial resolution in B-mode imaging. |
| Data Acquisition Front-End | Vector Signal Transceiver |
Use Scenario: Driving 16-bit SAR ADCs (e.g., ADS8422) in automated test equipment requiring low THD and high SFDR. IC Role / Device Role / Timing Role: THS4032CD acts as a low-noise, low-distortion ADC driver with optimized settling for 1MSPS sampling rates. Use Value: –90dBc THD at 1MHz and 1.2nV/√Hz noise maximize effective number of bits (ENOB) in 16-bit DAQ systems. | Use Scenario: Transmit and receive path conditioning in software-defined radio (SDR) platforms operating up to 100MHz IF frequencies. IC Role / Device Role / Timing Role: THS4032CD implements I/Q channel amplification and filtering in VST architectures with matched amplitude/phase response. Use Value: Channel-to-channel crosstalk of –61dBc and <0.1° gain/phase mismatch enable >70dB ACLR in LTE/WiFi signal generation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| THS4032ID | Same silicon, extended temperature range (–40°C to +125°C); higher RθJA (125°C/W vs 120.6°C/W in D package). | Targeted at automotive under-hood or industrial high-temp environments where ambient exceeds +85°C. | Select THS4032ID only when junction temperature modeling confirms operation within 130°C long-term reliability limit. |
| OPA2691ID | Higher 320MHz GBW but 2.1nV/√Hz noise; lower THD (–92dBc) at 1MHz; 190mA output drive; SOIC-8 compatible pinout. | Better suited for RF IF amplification where bandwidth outweighs noise priority; less optimal for ultra-low-noise DAQ. | Choose OPA2691ID when system bandwidth requirement exceeds 100MHz and noise floor budget allows ≥2nV/√Hz. |
Compared with THS4032CD, THS4032ID offers extended thermal range at minor bandwidth/noise trade-offs, while OPA2691ID trades 0.9nV/√Hz noise for 220MHz extra bandwidth - making THS4032CD optimal for noise-limited, 100MHz-class precision analog signal chains.
Availability
THS4032CD is available at Aetrix Electronics and suitable for video amplification, ultrasound beamforming, high-resolution data acquisition, and vector signal transceiver applications requiring stable component supply, consistent parametric performance, and long-term industrial-grade availability.
Supply support for THS4032CD 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-performance op-amps and precision signal-chain solutions.
The THS403x product line was designed specifically for low-noise, high-speed analog signal conditioning in communications infrastructure, medical imaging, and test equipment - emphasizing bandwidth, distortion, and noise performance over power efficiency.
FAQ
What supply voltage range does the THS4032CD support?
The THS4032CD operates from ±4.5V to ±16V dual supply or 9V to 32V single supply. At ±15V, it delivers full 100MHz bandwidth and 100V/μs slew rate; at ±5V, bandwidth reduces to 90MHz and slew rate to 80V/μs. Absolute maximum supply is 33V across VCC+ and VCC–.
Does the THS4032CD require external compensation for unity-gain stability?
No - the THS4032CD is internally compensated and unity-gain stable, with a 120MHz unity-gain bandwidth. It can be used in gain-of-1 configurations without external components. However, for capacitive loads >10pF, a 20Ω series isolation resistor at the output is recommended to maintain phase margin.
How does the THS4032CD perform driving a 150Ω video load?
At ±15V supply, the THS4032CD delivers ±12.9V output swing into 250Ω and ±12V into 150Ω, with –72dBc THD at 1MHz (RL = 150Ω). Its 200mA output current ensures stable drive into 75Ω/150Ω video lines, and differential gain/phase errors of 0.015%/0.025° meet broadcast video standards.
Is the THS4032CD pin-compatible with other dual op-amps in SOIC-8?
No - the THS4032CD uses a non-standard pinout: 1OUT, 1IN–, 1IN+, VCC–, 2IN+, 2IN–, 2OUT, VCC+. It is not pin-compatible with generic dual op-amps (e.g., LM358, OPA2350). Layout must follow TI's recommended SOIC-8 placement with separate ground/power planes and matched trace lengths for differential paths.
What is the thermal resistance of the THS4032CD in SOIC-8 (D) package?
The THS4032CD in SOIC-8 (D) package has a junction-to-ambient thermal resistance (RθJA) of 120.6°C/W. With 7.5mA supply current per channel (15mA total), power dissipation is ~225mW at ±15V - resulting in ~27°C junction rise above ambient. For continuous operation, keep ambient ≤85°C to stay below 130°C max junction temperature.
THS4032CD Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Amplifier Type:
- Voltage Feedback
- Number of Circuits:
- 2
- Output Type:
- -
- Slew Rate:
- 100V/µs
- Gain Bandwidth Product:
- 120 MHz
- -3db Bandwidth:
- 100 MHz
- Current - Input Bias:
- 3 µA
- Voltage - Input Offset:
- 500 µV
- Current - Supply:
- 8.5mA (x2 Channels)
- Current - Output / Channel:
- 90 mA
- Voltage - Supply Span (Min):
- 9 V
- Voltage - Supply Span (Max):
- 32 V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
THS4032CD FAQ
1.How can I place an order for THS4032CD through Aetrix?
Please submit a Request for Quotation (RFQ) for THS4032CD 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 THS4032CD reliable?
The price and inventory of THS4032CD are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for THS4032CD is usually 5 days.
3.What payment methods are accepted for THS4032CD?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for THS4032CD transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for THS4032CD?
THS4032CD orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your THS4032CD 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 THS4032CD?
For technical support, including THS4032CD datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your THS4032CD requirements.
6.How does Aetrix verify that THS4032CD is sourced from the original manufacturer or authorized distributors?
All THS4032CD 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 THS4032CD meets industry standards.
7.What is the process for return or replacement of THS4032CD?
All THS4032CD units undergo pre-shipment inspection (PSI). If there is an issue with THS4032CD, 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 THS4032CD part is unused and in its original packaging.
Return procedure for THS4032CD:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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