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Texas Instruments THS4042ID
- Part No.:
- THS4042ID
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
THS4042ID.pdf
- Description:
- IC VOLTAGE FEEDBACK 2 CIRC 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,282
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Product details
Overview
THS4042ID from Texas Instruments is a dual-channel, high-speed voltage-feedback operational amplifier optimized for driving capacitive loads up to 1000 pF while maintaining stability. It delivers 165 MHz small-signal bandwidth (±15 V, CL = 0 pF), 400 V/µs slew rate, and ±100 mA output drive into 20 Ω - enabling use in video line drivers, ADC buffers, and high-fidelity signal conditioning circuits.
For engineers reviewing the THS4042ID datasheet, THS4042ID pinout, THS4042ID application, or THS4042ID equivalent, key selection criteria include unity-gain stability with any capacitive load, differential gain/phase error of 0.01% / 0.01° (NTSC, ±15 V), low THD (−89 dBc at 1 MHz, RL = 1 kΩ), and operation across −40°C to +85°C industrial temperature range.
Technical Context
The THS4042ID employs a dielectrically isolated complementary bipolar process with GHz fT transistors, enabling wide bandwidth and fast settling (120 ns to 0.1%, 5-V step). Its internal C-stable compensation dynamically adjusts phase margin under varying capacitive loads - eliminating need for external isolation resistors in many configurations.
It supports both inverting and noninverting gains ≥1 with full stability, features independent dual amplifiers with −64 dB channel-to-channel crosstalk at 1 MHz, and maintains low distortion across ±5 V to ±15 V dual supplies - making it suitable for precision analog front-ends where signal integrity and load flexibility are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Small-signal BW | 165 MHz (−3 dB, ±15 V, CL = 0 pF): enables baseband video and high-speed data acquisition without roll-off |
| Slew rate | 400 V/µs (±15 V, 20-V step): supports full-scale 10-MHz sine waves without slewing distortion |
| THD | −89 dBc (1 MHz, VO(pp) = 2 V, RL = 1 kΩ): preserves spectral purity in communication and test equipment |
| Differential gain/phase | 0.01% / 0.01° (NTSC, ±15 V, gain = 2): meets broadcast-grade video fidelity requirements |
| Output current | ±100 mA (typ, ±15 V, RL = 20 Ω): drives heavy loads including coaxial cables and multiple ADC inputs |
| Supply range | ±4.5 V to ±16.5 V dual supply: accommodates legacy ±5 V and high-dynamic-range ±15 V systems |
| Operating temp | −40°C to +85°C (I-suffix): qualified for industrial and automotive under-hood signal chain applications |
Pinout & Package
THS4042ID is packaged in an 8-pin SOIC (D package) with exposed thermal pad (PowerPAD™), offering enhanced thermal performance and compatibility with standard PCB assembly processes.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | 1OUT | Output of Channel 1 - directly drives capacitive loads up to 1000 pF with stable response |
| 2 | 1IN− | Inverting input of Channel 1 - used for gain-setting feedback networks and inverting configurations |
| 3 | 1IN+ | Noninverting input of Channel 1 - accepts high-impedance sensor or reference signals |
| 4 | VCC− | Negative supply rail - must be decoupled with 0.1 µF ceramic capacitor near pin |
| 5 | VCC+ | Positive supply rail - requires local 0.1 µF ceramic decoupling for high-frequency PSRR |
| 6 | 2OUT | Output of Channel 2 - electrically isolated from Channel 1; supports independent signal paths |
| 7 | 2IN− | Inverting input of Channel 2 - enables dual-channel differential or parallel processing |
| 8 | 2IN+ | Noninverting input of Channel 2 - allows matched dual-path amplification without crosstalk degradation |
Key Features
| Feature | Design Value |
|---|---|
| C-stable architecture | Internally compensates for capacitive loads up to 1000 pF without external components or gain constraints |
| Unity-gain stability | Operates stably at gain = 1 in both inverting and noninverting configurations - simplifies design reuse |
| High output drive | Delivers ±100 mA into 20 Ω while maintaining linearity - eliminates need for external buffer stages |
| Low video distortion | 0.01% differential gain and 0.01° differential phase error meet NTSC/PAL broadcast standards |
| Industrial temperature range | Specified over −40°C to +85°C with guaranteed performance - suitable for uncontrolled ambient environments |
Applications
| Video Line Driver | ADC Input Buffer |
|---|---|
|
Use Scenario: Driving 75-Ω coaxial video lines in broadcast monitors and medical imaging displays. IC Role / Device Role / Timing Role: High-fidelity voltage buffer with minimal group delay and flat frequency response up to 100 MHz. Use Value: Preserves NTSC/PAL timing integrity with 0.01° differential phase error and supports multi-load distribution without gain peaking. |
Use Scenario: Conditioning analog sensor outputs before sampling by 12–16-bit SAR or sigma-delta ADCs. IC Role / Device Role / Timing Role: Low-noise, fast-settling driver ensuring accurate acquisition during short aperture windows. Use Value: 120 ns settling to 0.1% and −89 dBc THD prevent harmonic folding and maintain ENOB in high-resolution converters. |
| High-Speed Data Acquisition | Test & Measurement Signal Source |
|
Use Scenario: Front-end amplification in digitizers and oscilloscope channels requiring >100 MHz analog bandwidth. IC Role / Device Role / Timing Role: Wideband gain stage with 165 MHz bandwidth and 400 V/µs slew rate for transient fidelity. Use Value: Enables accurate capture of fast edges and RF-modulated waveforms without bandwidth-limiting artifacts. |
Use Scenario: Output stage of arbitrary waveform generators and RF signal sources needing clean, high-current outputs. IC Role / Device Role / Timing Role: Precision output amplifier delivering low-distortion sine/square waves up to 50 MHz. Use Value: −75 dBc THD at 1 MHz and 150 Ω load ensures spectral purity for calibration-grade instrumentation. |
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 |
|---|---|---|---|
| THS4032CD | Lower 100 MHz bandwidth, 100 V/µs slew rate, higher input noise (2.5 nV/√Hz) | Better suited for low-noise, moderate-speed applications; not rated for >1000 pF loads | Select when power efficiency and noise dominate over speed and capacitive drive capability |
| THS4082ID | 175 MHz bandwidth but lower 120 mA output drive, 220 V/µs slew rate, optimized for ±5 V operation | Targeted at portable/battery-powered systems; reduced drive limits use in heavy cable loads | Choose for low-voltage, high-bandwidth designs where output current < 80 mA suffices |
Compared with THS4042ID, THS4032CD trades bandwidth and capacitive drive for lower noise, while THS4082ID offers higher bandwidth at reduced output current and slew rate - making THS4042ID uniquely balanced for industrial video and data acquisition where both speed and robust load driving are required.
Availability
THS4042ID is available at Aetrix Electronics and suitable for video line driving, ADC buffering, and high-speed data acquisition requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for THS4042ID 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 chains.
The THS404x family was designed specifically for demanding analog signal conditioning in video, instrumentation, and communications - emphasizing unity-gain stability, capacitive load tolerance, and broadcast-grade fidelity.
FAQ
What is the operating temperature range for THS4042ID?
The THS4042ID is rated for operation from −40°C to +85°C, as indicated by its "I" suffix. This industrial temperature grade ensures guaranteed performance in harsh environments such as factory automation, outdoor instrumentation, and automotive body electronics - unlike the commercial-grade "C" variant (0°C to 70°C). All electrical specifications in the datasheet are validated across this full range.
Does THS4042ID require external compensation when driving capacitive loads?
No, THS4042ID does not require external compensation for capacitive loads. Its patented C-stable architecture automatically adjusts internal compensation based on load capacitance, maintaining stability up to 1000 pF. While minor peaking may occur at high frequencies, the device remains oscillation-free without added resistors or capacitors - simplifying layout and reducing BOM count compared to conventional high-speed op-amps.
Can THS4042ID drive a 75-Ω video line directly?
Yes, THS4042ID can drive a 75-Ω video line directly. With ±100 mA output current capability and 0.01% differential gain / 0.01° differential phase error under NTSC conditions, it meets broadcast video specifications. For optimal impedance matching and stability, a 75-Ω series resistor at the output is recommended - leveraging the amplifier's ability to drive heavy resistive-capacitive loads without gain degradation.
What is the maximum supply voltage for THS4042ID?
The absolute maximum supply voltage for THS4042ID is ±16.5 V per rail, with recommended operating range of ±4.5 V to ±16 V. Operation at ±15 V delivers full-rated performance including 165 MHz bandwidth and 400 V/µs slew rate. Exceeding ±16.5 V risks permanent damage, and operation below ±4.5 V reduces bandwidth and output swing - always observe the dissipation rating table for thermal limits at high supply voltages.
How does THS4042ID compare to THS4041ID in terms of functionality?
THS4042ID is the dual-channel version of THS4041ID (single-channel). Both share identical per-channel specifications: 165 MHz bandwidth, 400 V/µs slew rate, C-stable architecture, and −40°C to +85°C rating. The THS4042ID integrates two independent amplifiers in one SOIC-8 package with −64 dB channel crosstalk at 1 MHz - enabling space-constrained dual-path designs like differential receivers or stereo video processing without doubling PCB area or cost.
THS4042ID Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Bulk
- Product Status:
- Active
- Amplifier Type:
- Voltage Feedback
- Number of Circuits:
- 2
- Output Type:
- -
- Slew Rate:
- 400V/µs
- Gain Bandwidth Product:
- -
- -3db Bandwidth:
- 165 MHz
- Current - Input Bias:
- 2.5 µA
- Voltage - Input Offset:
- 2.5 mV
- Current - Supply:
- 8mA (x2 Channels)
- Current - Output / Channel:
- 100 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
THS4042ID FAQ
1.How can I place an order for THS4042ID through Aetrix?
Please submit a Request for Quotation (RFQ) for THS4042ID 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 THS4042ID reliable?
The price and inventory of THS4042ID are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for THS4042ID is usually 5 days.
3.What payment methods are accepted for THS4042ID?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for THS4042ID transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for THS4042ID?
THS4042ID orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your THS4042ID 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 THS4042ID?
For technical support, including THS4042ID datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your THS4042ID requirements.
6.How does Aetrix verify that THS4042ID is sourced from the original manufacturer or authorized distributors?
All THS4042ID 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 THS4042ID meets industry standards.
7.What is the process for return or replacement of THS4042ID?
All THS4042ID units undergo pre-shipment inspection (PSI). If there is an issue with THS4042ID, 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 THS4042ID part is unused and in its original packaging.
Return procedure for THS4042ID:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
THS4042ID Tags
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