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Texas Instruments THS4022IDR
- Part No.:
- THS4022IDR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
THS4022IDR.pdf
- Description:
- IC VOLTAGE FEEDBACK 2 CIRC 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,283
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Product details
Overview
THS4022IDR from Texas Instruments is a dual-channel, ultra-low-noise (1.2nV/√Hz), high-speed voltage-feedback operational amplifier optimized for precision imaging and test instrumentation. It delivers 290MHz small-signal bandwidth at G=10, 470V/μs slew rate, and 30ns 0.1% settling time under ±15V supply, enabling high-fidelity signal conditioning in ultrasound scanner front-ends and source measurement units.
For engineers reviewing the THS4022IDR datasheet, THS4022IDR pinout, THS4022IDR application, or THS4022IDR equivalent, this page provides verified specifications, dual-amplifier channel mapping, thermal performance data (RθJA = 52°C/W), noise/distortion trade-offs at 1MHz, and validated alternatives for low-distortion, high-drive analog signal chains.
Technical Context
The THS4022IDR implements a voltage-feedback architecture with unity-gain stable operation only at gains ≥10V/V (or ≤–9V/V), requiring external gain-setting networks for closed-loop stability. Its dual-channel layout shares no internal coupling-crosstalk is –54dBc at 1MHz-enabling independent signal paths in differential or multi-channel acquisition systems.
It operates from ±4.5V to ±16V dual supplies (or 9V–32V single supply), drawing 7.5mA per amplifier. Input stage features 1MΩ resistance and 1.5pF capacitance, while output drives ±12.9V into 250Ω (±15V) or ±3.5V into 150Ω (±5V) with 200mA peak current capability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-bandwidth product | 2 GHz - enables stable closed-loop operation up to 290 MHz at gain = 10 V/V |
| Voltage noise density | 1.2 nV/√Hz - critical for preserving SNR in low-level sensor amplification (e.g., ultrasound transducer preamps) |
| Slew rate | 470 V/μs - supports fast transient response in pulse-based SMU output stages without distortion |
| Settling time (0.1%) | 30 ns - ensures accurate digitization of high-speed step signals in power quality meters |
| Total harmonic distortion | –68 dBc at 1 MHz, RL = 150 Ω - meets spectral purity requirements for RF-sensitive medical imaging front-ends |
| Output drive current | 200 mA (typical) - directly drives 150 Ω loads without external buffers in video line drivers or ADC input buffers |
| Supply voltage range | ±4.5 V to ±16 V - accommodates both low-power portable designs (±5 V) and high-dynamic-range industrial systems (±15 V) |
Pinout & Package
THS4022IDR uses an 8-pin HVSSOP (DGN) package with exposed thermal pad, optimized for high thermal conductivity (RθJA = 52°C/W) in space-constrained PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OUT | Channel 1 output | Drives first signal path; capable of ±12.9V swing into 250Ω at ±15V supply |
| 1IN– | Channel 1 inverting input | Differential input node for feedback network; CMVR = ±14.3V at ±15V supply |
| 1IN+ | Channel 1 noninverting input | High-impedance (1MΩ) input for reference or sensor signal routing |
| VCC– | Negative power supply | Connects to system ground or negative rail; must be decoupled with 0.1μF ceramic capacitor |
| 2IN+ | Channel 2 noninverting input | Independent second channel input; identical electrical specs to Channel 1 |
| 2IN– | Channel 2 inverting input | Enables dual-channel differential amplification without inter-channel crosstalk degradation |
| 2OUT | Channel 2 output | Second independent output; –54dBc crosstalk ensures isolation in multi-channel acquisition |
| VCC+ | Positive power supply | Accepts up to ±16V; PSRR = 95 dB ensures immunity to supply ripple in noisy environments |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low voltage noise | 1.2 nV/√Hz enables sub-microvolt signal amplification without degrading system SNR |
| High closed-loop bandwidth | 290 MHz at G=10 supports >100 MSPS sampling in wideband data acquisition front-ends |
| Robust output drive | 200 mA peak current allows direct interface to 150 Ω coaxial cables or ADC input networks |
| Low distortion at high frequency | –68 dBc THD at 1 MHz ensures minimal harmonic contamination in RF-critical applications |
| Wide supply flexibility | Operates from ±4.5V to ±16V dual or 9V–32V single supply, simplifying power architecture across platforms |
Applications
| Ultrasound Scanner Front-End | Source Measurement Unit (SMU) |
|---|---|
Use Scenario: Amplifies weak echo signals from piezoelectric transducers before ADC sampling. IC Role / Device Role / Timing Role: Low-noise preamplifier with 30ns settling time for time-of-flight measurement accuracy. Use Value: 1.2nV/√Hz noise floor preserves microvolt-level tissue reflection signals, improving image contrast resolution. |
Use Scenario: Generates precise, low-distortion stimulus waveforms while measuring device-under-test response. IC Role / Device Role / Timing Role: High-slew-rate output driver and feedback amplifier in four-quadrant current/voltage source loops. Use Value: 470V/μs slew rate enables fast waveform transitions; –68dBc THD ensures clean stimulus fidelity for semiconductor parametric testing. |
| Power Quality Meter Signal Chain | High-Speed Data Acquisition Buffer |
Use Scenario: Conditions voltage/current sensor outputs for anti-aliasing filtering and digitization at 100+ kSPS. IC Role / Device Role / Timing Role: Gain-stable buffer (G≥10) with 290MHz bandwidth to preserve harmonic content up to 50th order. Use Value: Stable gain ≥10V/V eliminates phase margin concerns in metering amplifiers; 200mA drive supports active filter loading. |
Use Scenario: Isolates ADC inputs from multiplexer switching transients and maintains signal integrity during sampling. IC Role / Device Role / Timing Role: Dual-channel unity-gain follower (configured at G=10 with feedback) driving 150Ω transmission lines. Use Value: Dual-channel architecture enables simultaneous sampling of differential pairs; 52°C/W RθJA sustains performance in compact meter enclosures. |
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 |
|---|---|---|---|
| THS4032DR | Higher 350MHz GBW (DGN package), 1.5nV/√Hz noise, same pinout and supply range | Better bandwidth for >200MHz closed-loop designs; slightly higher noise limits ultra-low-level sensing | Choose for wider small-signal bandwidth where 0.3nV/√Hz noise penalty is acceptable |
| LMH6629MA/NOPB | 1.05nV/√Hz noise, 1.5GHz GBW, 3x higher supply current (22mA/ch), SOIC-8 package | Superior noise and speed but requires larger board area and heatsinking due to 124.5°C/W RθJA | Prefer when ultimate SNR dominates thermal/power constraints in benchtop instrumentation |
Compared with THS4022IDR, THS4032DR trades 0.3nV/√Hz higher noise for +60MHz bandwidth at G=10, while LMH6629MA/NOPB delivers lower noise and higher speed at triple the quiescent current and inferior thermal performance-making THS4022IDR optimal for balanced high-speed, low-noise, thermally constrained designs.
Availability
THS4022IDR is available at Aetrix Electronics and suitable for ultrasound scanner front-ends, source measurement unit (SMU) output stages, and power quality meter signal chains requiring stable component supply, consistent parametric performance, and long-term industrial availability.
Supply support for THS4022IDR 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 over 90 years of innovation in high-performance signal chain solutions.
The THS402x family was engineered for demanding analog signal conditioning in medical imaging, automated test equipment, and precision instrumentation-prioritizing ultra-low noise, high slew rate, and stable high-gain operation.
FAQ
What is the minimum stable gain for THS4022IDR?
The THS4022IDR is specified as stable only at closed-loop gains ≥10V/V (noninverting) or ≤–9V/V (inverting). Attempting unity-gain or G=2 configurations risks oscillation due to its compensated internal architecture. Designers must use external feedback networks that enforce minimum gain per the datasheet's stability criteria to ensure reliable operation in THS4022IDR-based circuits.
Does THS4022IDR support single-supply operation?
Yes, THS4022IDR supports single-supply operation from 9V to 32V. Its input common-mode range extends to within 1.2V of the negative rail and 1.7V of the positive rail (at ±15V), enabling rail-to-rail input capability when biased appropriately. Output swing reaches ±3.5V into 150Ω on ±5V supplies, making THS4022IDR viable for portable, single-rail systems without level-shifting circuitry.
What is the thermal resistance of THS4022IDR in its HVSSOP package?
The THS4022IDR in the DGN (HVSSOP-8) package has a junction-to-ambient thermal resistance (RθJA) of 52°C/W, significantly lower than SOIC-packaged alternatives. This value assumes standard JEDEC 2-layer board conditions and enables sustained 200mA output current without exceeding 150°C maximum junction temperature under typical ±15V operation, critical for compact THS4022IDR-based designs.
How does THS4022IDR perform in terms of harmonic distortion at 1MHz?
At 1MHz, THS4022IDR achieves –68dBc total harmonic distortion (THD) with 2Vpp output into 150Ω at ±15V supply. This performance holds across its full operating temperature range (–40°C to +85°C) and is validated for both channels independently. The –68dBc figure reflects third-harmonic dominance and makes THS4022IDR suitable for applications where spectral purity impacts measurement accuracy, such as THS4022IDR-based SMUs and spectrum analyzers.
Is THS4022IDR pin-compatible with other devices in the THS402x family?
No-THS4022IDR (dual-channel, DGN package) is not pin-compatible with THS4021 variants (single-channel, SOIC-8 or HVSSOP-8). While both share functional similarity, THS4022IDR's 8-pin HVSSOP layout assigns pins 1/7 to 1OUT/2OUT and 2/6 to 1IN–/2IN–, whereas THS4021 uses pins 1/8 for offset null and pin 5 for NC. Direct substitution requires PCB redesign; THS4022IDR must be used as a dedicated dual-channel solution.
THS4022IDR 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:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
THS4022IDR FAQ
1.How can I place an order for THS4022IDR through Aetrix?
Please submit a Request for Quotation (RFQ) for THS4022IDR 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 THS4022IDR reliable?
The price and inventory of THS4022IDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for THS4022IDR is usually 5 days.
3.What payment methods are accepted for THS4022IDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for THS4022IDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for THS4022IDR?
THS4022IDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your THS4022IDR 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 THS4022IDR?
For technical support, including THS4022IDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your THS4022IDR requirements.
6.How does Aetrix verify that THS4022IDR is sourced from the original manufacturer or authorized distributors?
All THS4022IDR 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 THS4022IDR meets industry standards.
7.What is the process for return or replacement of THS4022IDR?
All THS4022IDR units undergo pre-shipment inspection (PSI). If there is an issue with THS4022IDR, 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 THS4022IDR part is unused and in its original packaging.
Return procedure for THS4022IDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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