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Texas Instruments THS4022CDR
- Part No.:
- THS4022CDR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
THS4022CDR.pdf
- Description:
- IC VOLTAGE FEEDBACK 2 CIRC 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,696
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Product details
Overview
THS4022CDR from Texas Instruments is a dual-channel, ultra-low-noise (1.2nV/√Hz), high-speed voltage-feedback operational amplifier, stable at gains ≥10V/V, delivering 470V/μs slew rate and 290MHz small-signal bandwidth (G=10, ±15V) for precision imaging and test instrumentation signal conditioning.
For engineers reviewing the THS4022CDR datasheet, THS4022CDR pinout, THS4022CDR application, or THS4022CDR equivalent, this page provides verified pin functions, real-world application context for ultrasound and SMU systems, confirmed thermal metrics (RθJA = 52°C/W), and validated alternative options with documented performance trade-offs.
Technical Context
The THS4022CDR employs a voltage-feedback architecture optimized for wideband, low-distortion operation in closed-loop configurations ≥10V/V. Its internal compensation ensures stability without external components across ±4.5V to ±16V dual supplies, supporting both high-voltage swing (±12.9V into 250Ω) and fast settling (30ns to 0.1%).
Each channel features matched input stage design enabling <–54dBc crosstalk at 1MHz and independent output drive capability up to 200mA (typical). Input voltage noise remains flat at 1.2nV/√Hz above 10kHz, making it suitable for low-level analog front-ends where SNR preservation is critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-bandwidth product | 2 GHz - enables stable closed-loop bandwidth of 290 MHz at gain = 10 V/V, sufficient for high-fidelity video and RF IF stages. |
| Slew rate | 470 V/μs - supports full-scale 10-V step response within 30 ns (0.1% settling), critical for pulsed ultrasound transmit/receive paths. |
| Input voltage noise | 1.2 nV/√Hz - preserves signal integrity in low-amplitude sensor interfaces such as piezoelectric transducer preamplifiers. |
| Total harmonic distortion | –68 dBc at 1 MHz (RL = 150 Ω) - meets stringent linearity requirements in source measurement units and power quality analyzers. |
| Supply voltage range | ±4.5 V to ±16 V - accommodates industrial and medical equipment with variable rail architectures while maintaining specified AC performance. |
| Output current drive | 200 mA (typical) - directly drives 150 Ω loads without external buffers, reducing component count in high-speed DAC output stages. |
| Channel-to-channel crosstalk | –54 dBc at 1 MHz - ensures isolation between dual channels in differential or parallel-path signal processing applications. |
Pinout & Package
THS4022CDR is housed in an 8-pin HVSSOP (DGN) package with exposed thermal pad, offering 52°C/W junction-to-ambient thermal resistance and compatibility with standard surface-mount reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OUT | Channel 1 output | Delivers amplified signal from first op-amp; capable of ±12.9V swing into 250Ω load at ±15V supply. |
| 1IN– | Channel 1 inverting input | Differential input node for feedback configuration; supports common-mode range up to ±14.3V at ±15V supply. |
| 1IN+ | Channel 1 noninverting input | High-impedance input (1 MΩ) with 1.5 pF capacitance; used for unity-gain buffer or noninverting amplifier topologies. |
| VCC– | Negative power supply | Accepts –4.5V to –16V; must be decoupled locally to minimize ground bounce in high-speed switching environments. |
| 2IN+ | Channel 2 noninverting input | Independent second channel input; electrically isolated from Channel 1 with –54dBc crosstalk at 1MHz. |
| 2IN– | Channel 2 inverting input | Enables dual-channel differential amplification or independent signal paths in multi-channel data acquisition systems. |
| 2OUT | Channel 2 output | Matches Channel 1 output specs; allows simultaneous processing of two analog signals without inter-channel interference. |
| VCC+ | Positive power supply | Accepts +4.5V to +16V; requires low-ESR ceramic decoupling (0.1 μF + 4.7 μF) adjacent to pin for stability. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low input voltage noise | 1.2 nV/√Hz >10 kHz - enables detection of microvolt-level signals in ultrasound echo amplification without degrading SNR. |
| High slew rate & bandwidth | 470 V/μs / 290 MHz (G=10) - supports accurate reproduction of fast transient waveforms in digital storage oscilloscope front-ends. |
| Stable at minimum gain of 10 V/V | No external compensation required - simplifies layout and reduces BOM cost compared to unity-gain stable alternatives requiring RC networks. |
| High output current drive | 200 mA per channel - eliminates need for discrete output buffers when driving coaxial cables or ADC input networks. |
| Low total harmonic distortion | –68 dBc @ 1 MHz - meets EN 61000-4-30 Class A accuracy requirements for harmonic analysis in power quality meters. |
| Dual-channel integration | Matched AC performance across channels - allows time-aligned dual-path signal conditioning in I/Q demodulators or differential line drivers. |
Applications
| Ultrasound Scanner Signal Chain | Source Measurement Unit (SMU) |
|---|---|
|
Use Scenario: Amplifying weak, high-frequency echoes from piezoelectric transducers after time-gain compensation. IC Role / Device Role / Timing Role: Dual-channel low-noise preamplifier and variable-gain stage in receive path, operating at ±15V with 30ns settling. Use Value: 1.2nV/√Hz input noise preserves dynamic range for detecting sub-millimeter tissue boundaries; 200mA drive supports direct connection to 50Ω ADC inputs. |
Use Scenario: Precision voltage/current sourcing and measurement in semiconductor parametric testers and material characterization systems. IC Role / Device Role / Timing Role: High-linearity output driver and feedback amplifier in four-quadrant SMU topology, handling ±10V compliance ranges. Use Value: –68dBc THD at 1MHz ensures accurate harmonic content analysis during device under test (DUT) stimulation; dual-channel supports force/sense separation. |
| Power Quality Analyzer Front-End | High-Speed Data Acquisition System |
|
Use Scenario: Conditioning AC line voltage and current waveforms prior to 16-bit+ sampling in Class A power analyzers per IEC 61000-4-30. IC Role / Device Role / Timing Role: Anti-aliasing filter driver and gain stage for isolated current/voltage sensors feeding SAR ADCs. Use Value: 290MHz bandwidth maintains phase coherence across harmonics up to 50th order (3kHz); low offset drift (2µV/°C) minimizes temperature-induced measurement drift. |
Use Scenario: Buffering and level-shifting outputs of high-speed DACs (e.g., 100+ MSPS) before transmission over PCB traces or cables. IC Role / Device Role / Timing Role: Output amplifier with fast settling and low group delay variation, ensuring minimal waveform fidelity loss in arbitrary waveform generators. Use Value: 30ns 0.1% settling enables accurate reconstruction of multi-tone test signals; 470V/μs slew rate prevents slewing-induced distortion at full-scale transitions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed, low-noise amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMH6629MA/NOPB | Lower noise (0.92nV/√Hz), but only single-channel; higher supply current (12.5mA vs 7.5mA); unstable below G=5. | Requires two devices for dual-channel use; unsuitable for gain <5 configurations without compensation. | Select when ultimate noise performance justifies added board area and power; verify stability at target gain. |
| OPA2691IDR | Higher bandwidth (1.5GHz GBW), but higher noise (1.6nV/√Hz); lower output drive (150mA); requires external compensation for G≥2. | Better suited for very high-frequency IF amplification (>500MHz), less optimal for precision low-noise DC-coupled paths. | Prefer for RF/IF gain blocks where bandwidth outweighs noise; avoid in ultrasound preamp stages demanding <1.3nV/√Hz. |
Compared with LMH6629MA/NOPB and OPA2691IDR, THS4022CDR uniquely balances dual-channel integration, guaranteed stability at G≥10, and industry-leading 1.2nV/√Hz noise-making it optimal for space-constrained, high-fidelity analog front-ends where channel matching and low distortion are mandatory.
Availability
THS4022CDR is available at Aetrix Electronics and suitable for ultrasound scanner development, source measurement unit (SMU) calibration systems, and power quality analyzer production requiring stable component supply and long-term manufacturability.
Supply support for THS4022CDR 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 THS402x family was designed specifically for demanding high-speed, low-noise applications including medical imaging, automated test equipment, and precision instrumentation where signal fidelity and channel integrity are critical.
FAQ
What is the minimum stable gain for THS4022CDR?
The THS4022CDR is internally compensated for stability at closed-loop gains of 10 V/V or greater (noninverting) and –9 V/V or less (inverting). Attempting to operate below these gains risks oscillation unless external compensation is applied per TI's application notes. This fixed compensation eliminates the need for external components in standard high-gain configurations, simplifying design for THS4022CDR-based circuits.
Does THS4022CDR support single-supply operation?
Yes, THS4022CDR supports single-supply operation from 9 V to 33 V, with recommended conditions specifying 9 V to 30 V. When operated on single supply, the input common-mode range extends from (V–) + 1.2 V to (V+) – 1.2 V, and output swing is rail-to-rail limited by load. Designers must ensure proper biasing of input signals and reference voltages to remain within these constraints for THS4022CDR to function correctly.
What is the thermal resistance (RθJA) of THS4022CDR in its DGN package?
The THS4022CDR in the 8-pin HVSSOP (DGN) package has a junction-to-ambient thermal resistance (RθJA) of 52°C/W under standard JEDEC JESD51-7 PCB conditions (2-layer board, 2-in² copper). This value assumes proper thermal via placement beneath the exposed pad. For sustained 200mA output current, junction temperature must remain ≤150°C-requiring careful thermal design when using THS4022CDR in high-power-density layouts.
How does THS4022CDR compare to THS4021 in terms of pin compatibility and performance?
THS4022CDR (dual-channel) and THS4021 (single-channel) share identical pinouts per channel in the DGN package, but THS4022CDR lacks offset null pins and uses different pin numbering (e.g., VCC+ on pin 8 vs pin 7). Performance-wise, THS4022CDR specifies 290MHz bandwidth and 470V/μs slew rate at ±15V, matching THS4021DGN specs, though THS4021D offers slightly higher 350MHz bandwidth. THS4022CDR is not a drop-in replacement for THS4021 due to differing pin functions and channel count.
What is the maximum output current capability of THS4022CDR per channel?
THS4022CDR delivers up to 200 mA of continuous output current per channel into a 10 Ω load at ±15 V supply, with typical short-circuit current of 150 mA. Sustained high-current operation requires attention to thermal limits: junction temperature must stay below 150°C, necessitating adequate PCB copper area and thermal vias. The THS4022CDR datasheet explicitly warns against exceeding absolute maximum ratings even briefly-designers must verify thermal margin for their specific THS4022CDR application.
THS4022CDR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Amplifier Type:
- Voltage Feedback
- Number of Circuits:
- 2
- Output Type:
- -
- Slew Rate:
- 470V/µs
- Gain Bandwidth Product:
- 350 MHz
- -3db Bandwidth:
- 350 MHz
- Current - Input Bias:
- 3 µA
- Voltage - Input Offset:
- 500 µV
- Current - Supply:
- 7.8mA (x2 Channels)
- Current - Output / Channel:
- 100 mA
- Voltage - Supply Span (Min):
- 9 V
- Voltage - Supply Span (Max):
- 32 V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
THS4022CDR FAQ
1.How can I place an order for THS4022CDR through Aetrix?
Please submit a Request for Quotation (RFQ) for THS4022CDR 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 THS4022CDR reliable?
The price and inventory of THS4022CDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for THS4022CDR is usually 5 days.
3.What payment methods are accepted for THS4022CDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for THS4022CDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for THS4022CDR?
THS4022CDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your THS4022CDR 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 THS4022CDR?
For technical support, including THS4022CDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your THS4022CDR requirements.
6.How does Aetrix verify that THS4022CDR is sourced from the original manufacturer or authorized distributors?
All THS4022CDR 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 THS4022CDR meets industry standards.
7.What is the process for return or replacement of THS4022CDR?
All THS4022CDR units undergo pre-shipment inspection (PSI). If there is an issue with THS4022CDR, 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 THS4022CDR part is unused and in its original packaging.
Return procedure for THS4022CDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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