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Texas Instruments THS4032IDGN
- Part No.:
- THS4032IDGN
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
- Datasheet:
-
THS4032IDGN.pdf
- Description:
- IC OPAMP VFB 2 CIRCUIT 8HVSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,166
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Product details
Overview
THS4032IDGN from Texas Instruments is a dual-channel, ultra-low-noise (1.2nV/√Hz), high-speed voltage-feedback operational amplifier with 100MHz bandwidth (G = 2, –3dB), 100V/μs slew rate, and ±15V supply capability-designed for precision signal conditioning in data acquisition, ultrasound imaging, and SAR ADC buffering.
For engineers reviewing the THS4032IDGN datasheet, THS4032IDGN pinout, THS4032IDGN application, or THS4032IDGN equivalent, key selection criteria include input voltage noise density, channel-to-channel crosstalk (–61dBc), thermal performance in HVSSOP-8 (RθJA = 52.0°C/W), and dual-channel drive capability into 150Ω or 1kΩ loads.
Technical Context
The THS4032IDGN employs a 30V complementary bipolar process enabling GHz fT transistors, delivering unity-gain stability with 120MHz bandwidth and 70ns settling time (0.1%). Its voltage-feedback architecture supports both single-supply (9–32V) and split-supply (±4.5V to ±16V) operation.
Each channel features matched input stage design with 2MΩ input resistance and 1.5pF input capacitance, while the DGN package integrates a thermal pad tied to PCB copper for enhanced junction-to-board thermal resistance (RθJB = 24.5°C/W).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Bandwidth | 100MHz at G = 2 (–3dB); enables baseband video, ultrasound, and DAQ signal amplification up to 10MHz with flat gain. |
| Slew Rate | 100V/μs (±15V); supports full-scale 20V step response in <200ns without distortion. |
| Voltage Noise | 1.2nV/√Hz (f > 10kHz); critical for preserving SNR in 16-bit SAR ADC driver stages. |
| THD @ 1MHz | –90dBc (RL = 1kΩ); ensures minimal harmonic contamination in precision analog front-ends. |
| Output Drive | 200mA per channel (±15V); drives 150Ω cables or low-Z active filters without gain compression. |
| Supply Range | ±4.5V to ±16V dual or 9V–32V single; accommodates industrial and medical systems with wide rail flexibility. |
| Crosstalk | –61dBc (1MHz); maintains channel isolation in dual-signal paths like I/Q demodulation or stereo DAQ. |
Pinout & Package
The THS4032IDGN is housed in an 8-pin HVSSOP (DGN) package (3.0mm × 4.9mm) with exposed thermal pad for optimal heat dissipation. The thermal pad must be connected to a large copper plane for RθJB = 24.5°C/W performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OUT | Channel 1 output | Low-impedance buffered output capable of ±13.6V swing into 1kΩ load. |
| 1IN– | Channel 1 inverting input | Differential input node; accepts feedback networks for precise gain configuration. |
| 1IN+ | Channel 1 noninverting input | High-impedance input (2MΩ) with 1.5pF capacitance; requires layout symmetry for noise rejection. |
| VCC– | Negative power supply | Reference for internal biasing; must be decoupled with 0.1μF ceramic near pin 4. |
| 2IN+ | Channel 2 noninverting input | Independent input path; matched to Channel 1 for differential pair or dual-path applications. |
| 2IN– | Channel 2 inverting input | Enables independent gain setting per channel; no shared offset null pins (unlike THS4031). |
| 2OUT | Channel 2 output | Fully independent output; supports simultaneous dual-channel signal processing without interaction. |
| VCC+ | Positive power supply | Supplies both channels; requires separate 0.1μF ceramic decoupling at pin 8. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low voltage noise | 1.2nV/√Hz enables >90dB SNR preservation in 16-bit DAQ systems with 10MHz bandwidth. |
| Dual-channel integration | Two matched amplifiers in one HVSSOP-8 reduce board area by 40% vs discrete SOIC solutions. |
| High output current | 200mA per channel drives 150Ω coaxial cables directly-eliminating external buffer stages in video/cable driver designs. |
| Unity-gain stable | 120MHz unity-gain bandwidth allows stable operation at G = 1 for impedance buffering without external compensation. |
| Low THD into 1kΩ | –90dBc at 1MHz ensures clean spectral purity in vector signal transceiver (VST) and communications test equipment. |
Applications
| Ultrasound Scanner Front-End | Data Acquisition (DAQ) Signal Conditioning |
|---|---|
Use Scenario: Amplifying weak echo signals from piezoelectric transducers before digitization in portable ultrasound systems. IC Role / Device Role / Timing Role: Dual-channel low-noise preamplifier with matched gain paths for I/Q beamforming channels. Use Value: 1.2nV/√Hz input noise preserves dynamic range across 1–15MHz imaging bandwidth; –90dBc THD prevents harmonic artifacts in B-mode image reconstruction. | Use Scenario: Buffering multiplexed sensor outputs (e.g., strain gauges, thermocouples) into a 16-bit SAR ADC like ADS8422. IC Role / Device Role / Timing Role: High-speed, low-offset driver ensuring fast settling (<70ns) and minimal code-dependent errors during ADC sampling. Use Value: 0.3mV typical VOS and 2μV/°C drift maintain accuracy over temperature; 200mA drive handles ADC input capacitance without ringing. |
| Video Amplifier for HD Baseband | Cable Driver for 75Ω Systems |
Use Scenario: Driving RGB or YPbPr video signals over short PCB traces to display interface ICs in medical monitors. IC Role / Device Role / Timing Role: DC-coupled gain stage with 100MHz bandwidth supporting 1080p60 timing (165MHz pixel clock harmonics). Use Value: 100V/μs slew rate eliminates edge distortion on 1Vpp sync pulses; differential gain/phase error <0.02%/0.03° meets SMPTE 253M specs. | Use Scenario: Transmitting analog video or test signals over 75Ω coaxial cables in automated test equipment (ATE). IC Role / Device Role / Timing Role: Source-terminated line driver with series 75Ω resistor to suppress reflections and ensure impedance matching. Use Value: 200mA output current sustains 1Vpp into 75Ω + cable capacitance; –61dBc crosstalk prevents inter-channel interference in multi-signal ATE racks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed, low-noise op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| THS4032D | Same die in SOIC-8 package; RθJA = 120.6°C/W vs 52.0°C/W for DGN; no thermal pad. | Preferred for cost-sensitive, lower-power, or legacy SOIC layouts; unsuitable for sustained 200mA output in compact enclosures. | Select THS4032D only when thermal budget allows higher junction temperature rise or board space permits larger copper pour for SOIC thermal relief. |
| OPA2837IRUGR | Lower noise (0.95nV/√Hz) but reduced output drive (100mA); 200MHz GBW vs 120MHz unity-gain bandwidth. | Better for ultra-low-noise, low-current applications (e.g., photodiode TIA); insufficient for 150Ω cable driving. | Choose OPA2837IRUGR when noise dominates over drive strength and load impedance exceeds 600Ω. |
Compared with THS4032D and OPA2837IRUGR, the THS4032IDGN uniquely balances ultra-low noise, high output current, and superior thermal performance in a space-constrained HVSSOP package-making it optimal for dual-channel, high-fidelity analog signal chains where both fidelity and drive capability are critical.
Availability
THS4032IDGN is available at Aetrix Electronics and suitable for ultrasound scanner front-ends, high-resolution data acquisition systems, and HD video signal conditioning requiring stable component supply and guaranteed long-term availability.
Supply support for THS4032IDGN 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 family-including THS4032IDGN-is engineered for low-noise, wide-bandwidth analog signal conditioning in demanding applications such as medical imaging, test equipment, and high-fidelity data conversion.
FAQ
What is the maximum supply voltage for THS4032IDGN?
The THS4032IDGN supports dual-supply operation from ±4.5V to ±16V (32V total) or single-supply from 9V to 32V. Exceeding ±16V or 32V violates absolute maximum ratings and risks permanent damage. Operation at ±15V is typical for full dynamic range and specified performance.
Does THS4032IDGN have offset null pins like THS4031?
No. The THS4032IDGN does not include offset null pins (pins 1 and 8). Only the single-channel THS4031 provides these terminals. The THS4032IDGN relies on its low 0.3mV typical input offset voltage and 2μV/°C drift for precision applications without external trimming.
Can THS4032IDGN drive a 75Ω coaxial cable directly?
Yes-when configured with a 75Ω series resistor at the output, the THS4032IDGN can drive 75Ω cables stably. Its 200mA output current supports 1Vpp into 75Ω, and the resistor isolates capacitive load effects. This matches standard video and test signal distribution requirements without additional buffers.
What is the thermal pad connection requirement for THS4032IDGN?
The exposed thermal pad on the THS4032IDGN (HVSSOP-8) must be soldered to a large PCB copper plane for optimal thermal performance. It may be connected to VCC–, ground, or any potential between VCC– and VCC+, but must remain within that voltage range to avoid breakdown. Failure to connect reduces RθJB from 24.5°C/W to >60°C/W.
How does THS4032IDGN compare to THS4031 in terms of noise and bandwidth?
The THS4032IDGN shares identical noise (1.2nV/√Hz), bandwidth (100MHz at G=2), and slew rate (100V/μs) specifications with the THS4031. Both devices use the same core amplifier design; the THS4032IDGN integrates two such channels in one package, with no performance trade-off per channel.
THS4032IDGN Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
- 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:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-HVSSOP
THS4032IDGN FAQ
1.How can I place an order for THS4032IDGN through Aetrix?
Please submit a Request for Quotation (RFQ) for THS4032IDGN 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 THS4032IDGN reliable?
The price and inventory of THS4032IDGN are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for THS4032IDGN is usually 5 days.
3.What payment methods are accepted for THS4032IDGN?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for THS4032IDGN transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for THS4032IDGN?
THS4032IDGN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your THS4032IDGN 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 THS4032IDGN?
For technical support, including THS4032IDGN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your THS4032IDGN requirements.
6.How does Aetrix verify that THS4032IDGN is sourced from the original manufacturer or authorized distributors?
All THS4032IDGN 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 THS4032IDGN meets industry standards.
7.What is the process for return or replacement of THS4032IDGN?
All THS4032IDGN units undergo pre-shipment inspection (PSI). If there is an issue with THS4032IDGN, 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 THS4032IDGN part is unused and in its original packaging.
Return procedure for THS4032IDGN:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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