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Texas Instruments THS4032IDR
- Part No.:
- THS4032IDR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
THS4032IDR.pdf
- Description:
- IC VOLTAGE FEEDBACK 2 CIRC 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,530
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Product details
Overview
THS4032IDR 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 video driver applications.
For engineers reviewing the THS4032IDR datasheet, THS4032IDR pinout, THS4032IDR application, or THS4032IDR equivalent, key selection criteria include input voltage noise density, channel-to-channel crosstalk (–61dBc), output drive strength (200mA), thermal performance in SOIC-8 (RθJA = 120.6°C/W), and dual-channel offset voltage matching (0.3mV typical).
Technical Context
The THS4032IDR employs a complementary bipolar 30V 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.
Internal compensation optimizes bandwidth and slew rate but requires external isolation resistors (>20Ω) when driving capacitive loads >10pF to maintain phase margin and prevent ringing. Channel-to-channel crosstalk is specified at –61dBc (f = 1MHz), confirming independent dual-amplifier operation without significant inter-channel coupling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Bandwidth | 100MHz at G = 2 (–3dB); enables accurate amplification of signals up to video and ultrasound baseband frequencies. |
| Slew Rate | 100V/μs (±15V); supports fast transient response for 20Vpp step signals with ≤70ns settling to 0.1%. |
| Voltage Noise | 1.2nV/√Hz (f > 10kHz); critical for preserving SNR in low-level sensor and ADC driver stages. |
| THD | –90dBc at 1MHz, RL = 1kΩ; ensures minimal harmonic contamination in high-fidelity analog signal paths. |
| Output Drive | 200mA (±15V, RL = 10Ω); drives heavy loads including 75Ω video lines and SAR ADC reference buffers. |
| Input Offset | 0.3mV typical (25°C); reduces DC error in precision gain stages without trimming circuitry. |
| Supply Range | ±4.5V to ±16V dual or 9V–32V single; accommodates industrial and medical systems with wide rail flexibility. |
Pinout & Package
THS4032IDR is packaged in an 8-pin SOIC (D package), 4.9mm × 6mm body size, with exposed thermal pad not present (HVSSOP variant has pad; SOIC does not). Pin functions are validated per TI SLOS224L Rev L (July 2024).
| 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 network for stable closed-loop gain configurations. |
| 1IN+ | Channel 1 noninverting input | High-impedance input (2MΩ) with 1.5pF capacitance; used for unity-gain buffer or active filter inputs. |
| VCC– | Negative power supply | Reference for internal biasing; must be ≥ –16V and ≤ VCC+ – 33V. |
| 2IN+ | Channel 2 noninverting input | Independent input for second channel; no shared internal nodes with Channel 1. |
| 2IN– | Channel 2 inverting input | Separate feedback path; supports simultaneous dual-channel operation without cross-talk degradation. |
| 2OUT | Channel 2 output | Matched performance to 1OUT; crosstalk –61dBc confirms isolation for multi-channel signal routing. |
| VCC+ | Positive power supply | Supplies both channels; ICC = 7.5mA per channel at ±15V, enabling low-power high-speed operation. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low voltage noise | 1.2nV/√Hz enables high-resolution signal amplification without degrading system SNR in front-end stages. |
| Dual-channel integration | Two fully independent amplifiers in one SOIC-8 reduce PCB area and component count vs discrete solutions. |
| High output current drive | 200mA sourcing/sinking capability supports direct driving of 75Ω coaxial cables and ADC input buffers. |
| Unity-gain stable | 120MHz bandwidth at G = 1 allows use in buffer, active filter, and line-driver configurations without external compensation. |
| Low distortion at high frequency | –90dBc THD at 1MHz (RL = 1kΩ) preserves spectral purity in vector signal transceiver and DAQ applications. |
Applications
| Ultrasound Imaging Front-End | Data Acquisition Signal Conditioning |
|---|---|
Use Scenario: Amplifying weak echo signals from piezoelectric transducers before digitization in portable ultrasound scanners. IC Role / Device Role / Timing Role: Low-noise preamplifier and variable-gain stage with wide bandwidth to preserve pulse fidelity and time-of-flight resolution. Use Value: 1.2nV/√Hz input noise and –90dBc THD minimize added distortion, directly improving image contrast and depth penetration. | Use Scenario: Driving the analog input of 16-bit SAR ADCs (e.g., ADS8422) in industrial test equipment requiring high dynamic range. IC Role / Device Role / Timing Role: High-speed, low-offset buffer isolating multiplexed sensor inputs from ADC sampling kickback. Use Value: 70ns settling time (0.1%) and 0.3mV offset ensure full-scale accuracy across multiple channels without calibration overhead. |
| Video Line Driver | Active Filter Building Block |
Use Scenario: Driving 75Ω composite video or RGB signals over long traces on broadcast or medical display boards. IC Role / Device Role / Timing Role: Current-output-capable voltage amplifier providing impedance-matched source termination. Use Value: 200mA drive strength and 100MHz bandwidth support full NTSC/PAL bandwidth (4.2–5.5MHz) with <0.02° differential phase error. | Use Scenario: Implementing 2nd-order Sallen-Key low-pass filters in anti-aliasing or reconstruction stages. IC Role / Device Role / Timing Role: Gain block with sufficient bandwidth (>10× filter f3dB) to avoid Q-factor degradation and passband ripple. Use Value: 120MHz unity-gain bandwidth allows stable implementation of filters up to ~12MHz while maintaining Butterworth response. |
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 |
|---|---|---|---|
| THS4031IDR | Single-channel version; identical noise (1.2nV/√Hz), bandwidth (100MHz), and slew rate (100V/μs); includes offset-null pins (1,8). | Used where only one amplifier is needed or offset trimming is required; occupies same SOIC-8 footprint. | Select THS4031IDR for space-constrained single-channel designs or when fine offset adjustment is mandatory. |
| OPA2691U | Lower noise (1.1nV/√Hz), higher slew rate (1800V/μs), but wider bandwidth (320MHz); higher supply current (12.5mA/channel) and cost. | Better suited for RF IF amplification or ultrafast pulse applications; less optimal for low-distortion audio/video due to higher THD. | Choose OPA2691U only when >300MHz bandwidth or sub-50ns settling is required; otherwise THS4032IDR offers better THD/noise trade-off. |
Compared with THS4032IDR, THS4031IDR provides identical per-channel performance in half the channel count and adds offset nulling, while OPA2691U trades higher power and cost for extreme speed-making THS4032IDR the optimal balance for precision wideband analog signal chains.
Availability
THS4032IDR is available at Aetrix Electronics and suitable for ultrasound imaging systems, high-resolution data acquisition modules, and professional video equipment requiring stable component supply and long-term manufacturability.
Supply support for THS4032IDR 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 expertise in high-performance amplifiers and precision signal chain solutions.
The THS403x family was engineered specifically for low-noise, wide-bandwidth analog signal conditioning in communications, medical imaging, and test instrumentation - emphasizing voltage noise, distortion, and drive capability over general-purpose op-amp traits.
FAQ
What is the maximum supply voltage for THS4032IDR?
The THS4032IDR supports dual-supply operation from ±4.5V to ±16V (33V 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-swing performance with 200mA output drive and 100MHz bandwidth.
Does THS4032IDR have offset nulling pins like THS4031IDR?
No, THS4032IDR does not include offset nulling pins. Only the single-channel THS4031IDR (pins 1 and 8) provides this feature. The THS4032IDR has a typical input offset voltage of 0.3mV at 25°C, which is trimmed during production and does not support external adjustment.
Can THS4032IDR drive a 75Ω video load directly?
Yes, THS4032IDR can drive a 75Ω load directly: it delivers ±12.9V swing into 250Ω and ±13.6V into 1kΩ, and its 200mA output current supports 75Ω at ≤±15V rails. For optimal stability with cable capacitance, add a 75Ω series isolation resistor at the output per TI application guidance.
What is the channel-to-channel crosstalk specification for THS4032IDR?
The THS4032IDR specifies channel-to-channel crosstalk of –61dBc at f = 1MHz under standard conditions (±5V or ±15V supplies). This value is measured between Channel 1 output and Channel 2 input (and vice versa), confirming effective isolation for dual-channel signal routing without mutual interference.
Is THS4032IDR unity-gain stable?
Yes, THS4032IDR is unity-gain stable with a 120MHz bandwidth at G = 1. This allows use in voltage-follower configurations, active filters, and line drivers without external compensation components - a key advantage over many high-speed op-amps requiring minimum gain for stability.
THS4032IDR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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
THS4032IDR FAQ
1.How can I place an order for THS4032IDR through Aetrix?
Please submit a Request for Quotation (RFQ) for THS4032IDR 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 THS4032IDR reliable?
The price and inventory of THS4032IDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for THS4032IDR is usually 5 days.
3.What payment methods are accepted for THS4032IDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for THS4032IDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for THS4032IDR?
THS4032IDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your THS4032IDR 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 THS4032IDR?
For technical support, including THS4032IDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your THS4032IDR requirements.
6.How does Aetrix verify that THS4032IDR is sourced from the original manufacturer or authorized distributors?
All THS4032IDR 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 THS4032IDR meets industry standards.
7.What is the process for return or replacement of THS4032IDR?
All THS4032IDR units undergo pre-shipment inspection (PSI). If there is an issue with THS4032IDR, 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 THS4032IDR part is unused and in its original packaging.
Return procedure for THS4032IDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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