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Texas Instruments THS4032IDG4
- Part No.:
- THS4032IDG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
THS4032IDG4.pdf
- Description:
- IC VOLTAGE FEEDBACK 2 CIRC 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,730
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Product details
Overview
THS4032IDG4 from Texas Instruments is a dual-channel, voltage-feedback operational amplifier optimized for low-noise, high-speed signal conditioning in precision analog front-ends. It delivers 100MHz small-signal bandwidth (G = 2), 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 THS4032IDG4 datasheet, THS4032IDG4 pinout, THS4032IDG4 application, or THS4032IDG4 equivalent, key selection criteria include its dual-channel SOIC-8 footprint, rail-to-rail output capability under heavy load, low distortion at high frequencies, thermal performance in industrial ambient ranges (–40°C to +85°C), and compatibility with ±4.5V to ±16V dual-supply operation.
Technical Context
The THS4032IDG4 employs a complementary bipolar 30V process enabling GHz fT transistors, yielding unity-gain stability with 120MHz bandwidth and 70ns 0.1% settling time. Its voltage-feedback architecture supports precise gain configuration while maintaining phase margin across wide load conditions.
Designed for demanding analog signal paths, it features matched channel characteristics (e.g., –61dBc crosstalk at 1MHz), independent input stage biasing, and internal compensation optimized for RL ≥ 150Ω - requiring external isolation resistors only when driving >10pF capacitive loads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Small-signal BW (–3dB) | 100MHz at G = 2; enables full-power signal fidelity up to 10MHz video or ultrasound baseband. |
| Slew rate | 100V/μs; supports clean 20Vpp step response within 70ns (0.1%), critical for fast-settling data acquisition. |
| Input voltage noise | 1.2nV/√Hz above 10kHz; preserves SNR in low-level sensor and ADC driver applications. |
| Total harmonic distortion | –90dBc at 1MHz, RL = 1kΩ; ensures minimal spectral contamination in communications and imaging systems. |
| Output current drive | 200mA typical per channel; sustains ±13.6V swing into 1kΩ and drives 75Ω transmission lines with series termination. |
| Supply range | ±4.5V to ±16V dual supply; accommodates industrial and test equipment rails without level-shifting circuitry. |
| Operating temperature | –40°C to +85°C (I-suffix); qualified for embedded industrial and medical equipment environments. |
Pinout & Package
THS4032IDG4 is housed in an 8-pin SOIC (D) package (4.9mm × 6mm), with exposed thermal pad not present - distinct from the HVSSOP variant. Pin functions are electrically isolated per channel and support standard op-amp configurations without shared nulling pins.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OUT | Channel 1 output | Low-impedance buffered output capable of sourcing/sinking 200mA; requires series resistor for >10pF capacitive loads. |
| 1IN– | Channel 1 inverting input | Differential input node; connects to feedback network for inverting gain stages or active filter topologies. |
| 1IN+ | Channel 1 noninverting input | High-impedance input (2MΩ) with 1.5pF capacitance; used for noninverting buffers and single-pole RC filtering. |
| VCC– | Negative power supply | Reference for both channels; must be decoupled with 0.1μF ceramic capacitor near pin 4. |
| 2IN+ | Channel 2 noninverting input | Independent input with identical specs to 1IN+; enables dual-path signal conditioning without cross-talk degradation. |
| 2IN– | Channel 2 inverting input | Matched to 1IN–; supports differential-to-single-ended conversion or dual-channel active filtering. |
| 2OUT | Channel 2 output | Functionally identical to 1OUT; channel-to-channel crosstalk is –61dBc at 1MHz, preserving signal integrity. |
| VCC+ | Positive power supply | Primary supply rail; decoupling at pin 8 is mandatory to suppress PSRR-induced noise at high frequencies. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low voltage noise | 1.2nV/√Hz enables sub-16-bit SNR preservation when driving high-resolution SAR ADCs like ADS8422. |
| High slew rate & bandwidth | 100V/μs + 100MHz BW allows faithful reproduction of fast transient signals in ultrasound and VST applications. |
| Low distortion at high frequency | –90dBc THD @ 1MHz (RL = 1kΩ) minimizes harmonic artifacts in video amplification and RF IF stages. |
| Dual-channel matching | –61dBc crosstalk and matched DC specs allow simultaneous processing of correlated analog signals without interference. |
| Robust output drive | 200mA output current supports direct 75Ω cable driving and high-current active filter implementations. |
Applications
| Video Signal Amplification | Ultrasound Signal Chain |
|---|---|
Use Scenario: Amplifying composite NTSC/PAL video signals before digitization or distribution. IC Role / Device Role / Timing Role: Dual-channel buffer and driver with differential gain control and DC restoration. Use Value: 0.015% differential gain error and 0.025° phase error preserve color fidelity and timing accuracy across broadcast standards. | Use Scenario: Conditioning echo return signals in portable ultrasound scanners prior to ADC sampling. IC Role / Device Role / Timing Role: Low-noise, wide-bandwidth transducer interface amplifier with fast settling for pulse-echo timing. Use Value: 1.2nV/√Hz input noise and 70ns 0.1% settling enable high dynamic range (>100dB) and precise time-of-flight measurement. |
| Data Acquisition Front-End | Vector Signal Transceiver |
Use Scenario: Driving multiplexed analog inputs to 16-bit SAR ADCs such as ADS8422 in automated test equipment. IC Role / Device Role / Timing Role: High-fidelity unity-gain buffer isolating switch capacitance and maintaining signal integrity during channel switching. Use Value: –90dBc THD and ±13.6V output swing ensure full-scale utilization of ADC input range without clipping or distortion. | Use Scenario: Transmit and receive path conditioning in software-defined radio (SDR) and VST platforms. IC Role / Device Role / Timing Role: Dual-channel IF amplifier supporting I/Q signal paths with matched amplitude and phase response. Use Value: Channel-to-channel crosstalk < –61dBc and <2μV/°C offset drift maintain image rejection and calibration stability over temperature. |
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 |
|---|---|---|---|
| THS4032ID | Same silicon, identical electrical specs; differs only in RoHS compliance marking (IDG4 = green, ID = legacy). | No functional difference; IDG4 meets current environmental requirements for new designs. | Select THS4032IDG4 for RoHS-compliant production; THS4032ID may be acceptable for legacy repair or non-regulated markets. |
| OPA2691IDGKT | Higher 320MHz BW but 2.1nV/√Hz noise; 190mA output; requires external compensation for stability. | Better for RF IF gain stages where bandwidth >200MHz is critical; less suitable for low-noise ADC buffering. | Choose OPA2691IDGKT only when bandwidth exceeds 100MHz requirement and higher noise is tolerable. |
Compared with THS4032IDG4, THS4032ID offers identical performance but lacks current RoHS certification, while OPA2691IDGKT trades lower noise and tighter distortion for significantly higher bandwidth and reduced stability margin - making THS4032IDG4 optimal for balanced low-noise, high-fidelity, dual-channel signal conditioning.
Availability
THS4032IDG4 is available at Aetrix Electronics and suitable for video amplification, ultrasound scanner design, data acquisition front-ends, vector signal transceivers, and industrial test equipment requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for THS4032IDG4 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 engineered specifically for low-noise, wide-bandwidth analog signal conditioning in communications infrastructure, medical imaging, and high-speed data acquisition - prioritizing noise-floor suppression, distortion control, and robust output drive.
FAQ
What is the maximum recommended supply voltage for THS4032IDG4?
The THS4032IDG4 supports dual-supply operation from ±4.5V to ±16V, with absolute maximum ratings limiting VCC+–VCC– to 33V. Operating beyond ±16V risks permanent damage per TI's Absolute Maximum Ratings table. For reliable long-term use, maintain supply within ±15V nominal, especially under high-output-current conditions where junction temperature must stay below 130°C.
Does THS4032IDG4 include offset nulling pins?
No, THS4032IDG4 does not include offset nulling pins. Only the single-channel THS4031 provides NULL pins (1 and 8) for external offset adjustment. The THS4032IDG4 relies on its low 0.3mV typical input offset voltage and 2μV/°C drift, eliminating the need for manual trimming in most dual-channel applications.
Can THS4032IDG4 drive a 75Ω coaxial cable directly?
Yes, THS4032IDG4 can drive a 75Ω cable when configured with a 75Ω series output resistor - this isolates capacitive loading and matches source impedance to prevent reflections. Without the resistor, direct connection risks instability due to phase-margin reduction from cable capacitance; the datasheet explicitly recommends ≥20Ω isolation for loads >10pF.
What is the thermal resistance (RθJA) of THS4032IDG4 in SOIC-8 package?
The THS4032IDG4 in the D (SOIC-8) package has a junction-to-ambient thermal resistance (RθJA) of 120.6°C/W under standard JEDEC test conditions. This value assumes a 2-layer board with 1in² copper pour; actual thermal performance improves significantly with enhanced PCB copper area and thermal vias.
Is THS4032IDG4 unity-gain stable?
Yes, THS4032IDG4 is unity-gain stable with a minimum small-signal bandwidth of 100MHz at G = 1. Its internal compensation ensures stable operation down to unity gain, and the datasheet confirms 120MHz unity-gain bandwidth. No external compensation components are required for G ≥ 1 configurations.
THS4032IDG4 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
THS4032IDG4 FAQ
1.How can I place an order for THS4032IDG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for THS4032IDG4 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 THS4032IDG4 reliable?
The price and inventory of THS4032IDG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for THS4032IDG4 is usually 5 days.
3.What payment methods are accepted for THS4032IDG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for THS4032IDG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for THS4032IDG4?
THS4032IDG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your THS4032IDG4 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 THS4032IDG4?
For technical support, including THS4032IDG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your THS4032IDG4 requirements.
6.How does Aetrix verify that THS4032IDG4 is sourced from the original manufacturer or authorized distributors?
All THS4032IDG4 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 THS4032IDG4 meets industry standards.
7.What is the process for return or replacement of THS4032IDG4?
All THS4032IDG4 units undergo pre-shipment inspection (PSI). If there is an issue with THS4032IDG4, 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 THS4032IDG4 part is unused and in its original packaging.
Return procedure for THS4032IDG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
THS4032IDG4 Tags
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