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Texas Instruments THS4032ID
- Part No.:
- THS4032ID
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
THS4032ID.pdf
- Description:
- IC VOLTAGE FEEDBACK 2 CIRC 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:707
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Product details
Overview
THS4032ID 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 ±16V supply capability. It delivers 200mA output drive per channel and achieves –90dBc THD at 1MHz into 1kΩ - ideal for precision analog front-ends in high-resolution data acquisition systems.
For engineers reviewing the THS4032ID datasheet, THS4032ID pinout, THS4032ID application, or THS4032ID equivalent, key selection criteria include input voltage noise density, channel-to-channel crosstalk (–61dBc), unity-gain stability, thermal performance in SOIC-8, and dual-channel matching for differential signal conditioning.
Technical Context
The THS4032ID employs a complementary bipolar 30V process enabling GHz fT transistors, delivering wide bandwidth and fast settling (70ns to 0.1%) without sacrificing low distortion. Its voltage-feedback architecture supports stable operation at unity gain (120MHz bandwidth) and maintains consistent performance across ±4.5V to ±16V supplies.
It features fully independent dual channels with matched AC/DC characteristics - including input offset voltage (0.3mV typ), CMRR (95dB typ), and PSRR (95dB typ) - and is optimized for driving capacitive loads via external series isolation resistors, not internal compensation tuning.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Bandwidth | 100MHz at G = 2 (–3dB); enables baseband video, ultrasound, and 16-bit SAR ADC buffering up to ~40MHz Nyquist. |
| Slew Rate | 100V/μs (±15V); supports full-scale 20Vpp steps in ≤200ns without slewing distortion. |
| Voltage Noise | 1.2nV/√Hz (>10kHz); preserves SNR in low-level sensor and DAQ signal chains. |
| THD | –90dBc @ 1MHz, RL = 1kΩ; ensures fidelity in communication and imaging signal reconstruction. |
| Output Drive | 200mA per channel (±15V); directly drives 150Ω cables or parallel ADC inputs without external buffers. |
| Supply Range | ±4.5V to ±16V dual supply; accommodates industrial ±5V, ±12V, and test equipment ±15V rails. |
| Crosstalk | –61dBc @ 1MHz; maintains channel isolation in dual-path instrumentation and I/Q signal processing. |
Pinout & Package
THS4032ID is packaged in an 8-pin SOIC (D package), 4.9mm × 6mm body, with exposed thermal pad only in HVSSOP variants - not present in SOIC. Pin functions are validated per TI SLOS224L Rev. July 2024.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OUT | Channel 1 output | Low-impedance buffered output capable of ±13.6V swing into 1kΩ at ±15V supply. |
| 1IN– | Channel 1 inverting input | Differential input node; requires matched layout to 1IN+ to preserve CMRR and THD. |
| 1IN+ | Channel 1 noninverting input | High-impedance (2MΩ) input with 1.5pF capacitance; sensitive to PCB parasitics above 10MHz. |
| VCC– | Negative power supply | Return path for both channels; must be low-inductance with local 0.1μF ceramic decoupling. |
| 2IN+ | Channel 2 noninverting input | Independent input with identical DC/AC specs to 1IN+; no shared bias network. |
| 2IN– | Channel 2 inverting input | Matched to 1IN–; channel-to-channel offset drift <2μV/°C ensures tracking in differential pairs. |
| 2OUT | Channel 2 output | Fully isolated output stage; crosstalk to 1OUT is –61dBc, not ground-bounce coupled. |
| VCC+ | Positive power supply | Common rail for both amplifiers; PSRR of 95dB minimizes supply-induced intermodulation. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low voltage noise | 1.2nV/√Hz enables sub-16-bit ENOB preservation when driving ADS8422-class SAR ADCs. |
| Dual-channel matching | Matched gain, offset, and bandwidth allow true differential signaling without calibration overhead. |
| Unity-gain stable | 120MHz unity-gain bandwidth permits use in gain-of-1 buffers and active filters without external compensation. |
| High output current | 200mA drive per channel eliminates need for external current boosters in cable driver applications. |
| Wide supply range | Operates from ±4.5V to ±16V, supporting legacy ±5V systems and high-dynamic-range ±15V test gear. |
Applications
| High-Performance Data Acquisition | Ultrasound Signal Conditioning |
|---|---|
Use Scenario: Buffering multiplexed sensor outputs before a 16-bit, 2-MSPS SAR ADC (e.g., ADS8422) in automated test equipment. IC Role / Device Role / Timing Role: Dual-channel THS4032ID provides matched gain, low noise, and fast settling to preserve ENOB and minimize aperture jitter-induced uncertainty. Use Value: 1.2nV/√Hz input noise and –90dBc THD maintain >92dB SNR up to 1MHz, enabling accurate multi-channel spectral analysis. | Use Scenario: Amplifying echo signals from piezoelectric transducers in portable ultrasound scanners with 5–15MHz bandwidth requirements. IC Role / Device Role / Timing Role: THS4032ID serves as a low-noise, wideband receiver front-end with independent channels for I/Q demodulation paths. Use Value: 100MHz bandwidth and 70ns settling ensure faithful reproduction of transient echo envelopes without phase distortion. |
| Video Line Driver | Active Filter Building Block |
Use Scenario: Driving 75Ω coaxial video lines (SD/HD) in broadcast monitoring equipment requiring DC-coupled, low-distortion transmission. IC Role / Device Role / Timing Role: THS4032ID operates as a unity-gain line driver with 200mA output capability and –81dBc THD into 150Ω. Use Value: Output swing of ±12.9V into 250Ω and low differential gain/phase error (0.015%/0.025°) preserve color fidelity and timing integrity. | Use Scenario: Implementing 2nd-order Sallen-Key low-pass filters in anti-aliasing stages for mixed-signal SoCs operating up to 10MHz. IC Role / Device Role / Timing Role: THS4032ID provides high open-loop gain (>93dB) and 120MHz GBW to realize sharp roll-off without Q-sensitivity drift. Use Value: Unity-gain stability and 1.2nV/√Hz noise ensure filter passband flatness and minimal added noise in sensor interface chains. |
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 |
|---|---|---|---|
| OPA2691ID | Higher 320MHz GBW but 2.1nV/√Hz noise; 130mA output; requires external compensation for unity gain. | Better for >100MHz RF IF gain stages; less suitable for precision low-noise DAQ where THS4032ID's 1.2nV/√Hz is critical. | Select OPA2691ID only when bandwidth >200MHz is mandatory and noise floor can be relaxed by 3dB. |
| ADA4898-2ARZ | Lower 1.1nV/√Hz noise, but 65MHz bandwidth and 100mA output; ±3V to ±12V supply limit. | Better for ultra-low-noise, lower-bandwidth applications (e.g., audio preamps); insufficient drive for 150Ω video or cable loads. | Choose ADA4898-2ARZ when noise is paramount and bandwidth ≤65MHz suffices; avoid for >100MHz or high-current loads. |
Compared with OPA2691ID and ADA4898-2ARZ, THS4032ID uniquely balances 100MHz bandwidth, 1.2nV/√Hz noise, 200mA drive, and unity-gain stability - making it optimal for dual-channel, wideband, precision analog front-ends where all four parameters are simultaneously required.
Availability
THS4032ID is available at Aetrix Electronics and suitable for high-resolution data acquisition, medical ultrasound signal chains, broadcast video line driving, and active filter design requiring stable component supply across industrial temperature ranges (–40°C to +85°C).
Supply support for THS4032ID 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, embedded processing, and connectivity technologies, with decades of heritage in high-performance op-amps and precision signal-chain solutions.
The THS403x family was designed specifically for low-noise, wideband analog signal conditioning in communications, imaging, and test equipment - emphasizing voltage-feedback speed, noise, and drive capability over power efficiency or rail-to-rail operation.
FAQ
What is the maximum supply voltage for THS4032ID?
The THS4032ID supports dual-supply operation from ±4.5V to ±16V (32V total). Absolute maximum rating is ±16.5V; exceeding this risks permanent damage. Operation at ±16V is fully characterized in the datasheet for bandwidth, slew rate, and THD performance - confirming robustness in high-dynamic-range test equipment designs using THS4032ID.
Does THS4032ID have offset null pins like THS4031?
No, THS4032ID does not include offset null pins. Only the single-channel THS4031 features NULL pins (1 and 8) for external offset adjustment. The THS4032ID relies on its low 0.3mV typical input offset voltage and tight channel matching; no provision for external trimming is provided in its 8-pin SOIC pinout.
Can THS4032ID drive a 75Ω coaxial cable directly?
Yes, THS4032ID can drive 75Ω loads directly: it delivers ±12.9V swing into 250Ω and sustains 200mA output current. For 75Ω, a series isolation resistor (e.g., 75Ω) is recommended per TI's application note to prevent instability from cable capacitance - a proven configuration used in THS4032ID-based video line drivers without requiring external buffers.
What is the channel-to-channel crosstalk specification for THS4032ID?
The THS4032ID specifies –61dBc channel-to-channel crosstalk at 1MHz under standard conditions (±5V or ±15V supply). This value is measured between 1OUT and 2IN or 2OUT and 1IN, and reflects physical separation and substrate coupling - critical for I/Q demodulators and dual-path instrumentation where signal leakage degrades dynamic range.
Is THS4032ID unity-gain stable, and what is its unity-gain bandwidth?
Yes, THS4032ID is unity-gain stable with a minimum unity-gain bandwidth of 100MHz and typical value of 120MHz (closed-loop, ±15V). This allows direct use in gain-of-1 configurations - such as ADC input buffers or active termination - without external compensation components, simplifying layout and preserving phase margin in THS4032ID-based signal chains.
THS4032ID Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- 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-SOIC
THS4032ID FAQ
1.How can I place an order for THS4032ID through Aetrix?
Please submit a Request for Quotation (RFQ) for THS4032ID 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 THS4032ID reliable?
The price and inventory of THS4032ID are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for THS4032ID is usually 5 days.
3.What payment methods are accepted for THS4032ID?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for THS4032ID transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for THS4032ID?
THS4032ID orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your THS4032ID 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 THS4032ID?
For technical support, including THS4032ID datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your THS4032ID requirements.
6.How does Aetrix verify that THS4032ID is sourced from the original manufacturer or authorized distributors?
All THS4032ID 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 THS4032ID meets industry standards.
7.What is the process for return or replacement of THS4032ID?
All THS4032ID units undergo pre-shipment inspection (PSI). If there is an issue with THS4032ID, 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 THS4032ID part is unused and in its original packaging.
Return procedure for THS4032ID:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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