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Texas Instruments THS4222DGKRG4
- Part No.:
- THS4222DGKRG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
THS4222DGKRG4.pdf
- Description:
- IC OPAMP VFB 2 CIRCUIT 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,218
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Product details
Overview
THS4222DGKRG4 from Texas Instruments is a dual, rail-to-rail output, voltage-feedback operational amplifier optimized for high-speed, low-distortion signal conditioning in data acquisition and video systems. It delivers 230 MHz small-signal bandwidth (G = 1), 975 V/µs slew rate, −90 dBc HD2 and −100 dBc HD3 at 5 MHz (RL = 499 Ω), and ±4.8 V output swing into 2 kΩ - enabling precision driving of ADC inputs and composite video lines.
For engineers reviewing the THS4222DGKRG4 datasheet, THS4222DGKRG4 pinout, THS4222DGKRG4 application, or THS4222DGKRG4 equivalent, key selection criteria include its dual-channel rail-to-rail output stage, 14 mA/ch quiescent current across 3–15 V supply range, differential gain/phase performance (0.007% / 0.007°), and MSOP-8 PowerPAD package thermal characteristics.
Technical Context
The THS4222DGKRG4 implements a voltage-feedback architecture with unity-gain stability and a fully differential output stage capable of rail-to-rail swing. Its internal compensation supports wideband operation up to 230 MHz while maintaining <25 ns settling time to 0.1% for ±2 V steps.
It features matched dual channels with −90 dB crosstalk at 5 MHz and shares identical AC/DC specifications per channel - including input common-mode range of −3.9 V to 3.9 V (±5 V supply), 100 dB open-loop gain, and 13 nV/√Hz input voltage noise - ensuring consistent channel-to-channel performance in differential or parallel configurations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Small-signal bandwidth | 230 MHz at G = 1 - enables full-scale signal fidelity through 10-bit+ ADC front-ends without attenuation |
| Slew rate | 975 V/µs - supports clean reproduction of fast transient signals up to ~40 MHz full-power bandwidth |
| Harmonic distortion | HD2 = −90 dBc, HD3 = −100 dBc @ 5 MHz - meets broadcast-grade video and high-resolution data converter requirements |
| Rail-to-rail output | ±4.8 V swing into 2 kΩ - maximizes dynamic range when interfacing with 10 Vpp ADC references |
| Quiescent current | 14 mA per channel - balances speed and power efficiency for portable or thermally constrained designs |
| Differential gain/phase | 0.007% / 0.007° @ NTSC/PAL - certifies suitability for SDTV line drivers and analog video routing |
| Input voltage noise | 13 nV/√Hz @ 1 MHz - preserves SNR in low-amplitude sensor or preamp stages |
Pinout & Package
The THS4222DGKRG4 is housed in an 8-pin MSOP PowerPAD package (DGK) with exposed thermal pad on underside for enhanced heat dissipation. Pin 1 is 1OUT; pin 2 is 1IN−; pin 3 is 1IN+; pin 4 is VS−; pin 5 is VS+; pin 6 is 2OUT; pin 7 is 2IN−; pin 8 is 2IN+.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OUT | Channel 1 output | Drives external load; rail-to-rail swing supports direct connection to ADC input or video termination |
| 1IN− | Inverting input (Ch1) | Accepts feedback network; matched impedance critical for stability in high-Z gain configurations |
| 1IN+ | Non-inverting input (Ch1) | Bias point for single-supply operation; requires DC reference path for proper common-mode setting |
| VS− | Negative supply rail | Connects to ground in single-supply mode; must be decoupled with 0.1 µF + 6.8 µF near pin |
| VS+ | Positive supply rail | Supports 3–15 V operation; PowerPAD thermal pad must be soldered to PCB copper pour for reliability |
| 2OUT | Channel 2 output | Independent output with identical AC specs; enables dual-path signal processing or differential drive |
| 2IN− | Inverting input (Ch2) | Electrically isolated from Ch1; −90 dB crosstalk ensures minimal inter-channel interference at 5 MHz |
| 2IN+ | Non-inverting input (Ch2) | Configurable independently; allows simultaneous but distinct gain/offset settings per channel |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output stage | Delivers >96% of full supply voltage swing - eliminates need for level-shifting circuitry in low-voltage systems |
| Ultra-low harmonic distortion | −90 dBc HD2 and −100 dBc HD3 at 5 MHz - satisfies EN 300 429 and SMPTE 253M video linearity requirements |
| High output drive capability | 100 mA sourcing/sinking per channel - directly drives 75 Ω video loads or multiple ADC inputs without buffers |
| Wide supply range | Operates from 3 V to 15 V single supply or ±1.35 V to ±7.5 V dual supply - simplifies system-level power architecture |
| Matched dual-channel topology | ≤0.5 mV input offset mismatch between channels - enables precise differential signaling and active filtering |
Applications
| ADC Driver for High-Speed Data Acquisition | SDTV Video Line Driver |
|---|---|
Use Scenario: Driving the analog input of a 10-bit, 50 MSPS pipeline ADC in medical imaging front-end. IC Role / Device Role / Timing Role: Single-supply buffer amplifying sensor output to match ADC full-scale range while preserving transient fidelity. Use Value: 230 MHz bandwidth and 975 V/µs slew rate ensure ≤0.1 LSB step error on 10-bit codes; rail-to-rail swing maximizes effective resolution. | Use Scenario: Amplifying and distributing composite NTSC video signals across four downstream monitors. IC Role / Device Role / Timing Role: Dual-channel line driver providing gain = 2, 75 Ω source termination, and DC restoration. Use Value: 0.007% differential gain and 0.007° phase error preserve color fidelity; 100 mA output sustains 75 Ω load without droop. |
| Active Anti-Aliasing Filter | Low-Voltage Signal Conditioning for Portable Test Equipment |
Use Scenario: Implementing a 40 MHz, 4-pole Chebyshev filter before a 100 MSPS digitizer in handheld spectrum analyzer. IC Role / Device Role / Timing Role: Dual op-amp configured as two cascaded 2nd-order sections with precise pole placement. Use Value: Matched channel specs ensure filter symmetry; 13 nV/√Hz noise avoids degrading system noise floor below −100 dBm. | Use Scenario: Amplifying low-amplitude thermocouple outputs (±10 mV) in battery-powered field calibrator operating from 3.3 V supply. IC Role / Device Role / Timing Role: Dual gain-of-100 instrumentation amplifier stage with rail-to-rail output referenced to mid-supply. Use Value: 3.3 V operation with 0.15–3.15 V output swing fits microcontroller ADC range; 14 mA/ch quiescent current extends battery life. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed, low-distortion operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| THS4222D | Same die, SOIC-8 package (no PowerPAD); higher θJA (97.5°C/W vs 260°C/W) | Limited to lower ambient temperatures or reduced output current duty cycles | Select when board space permits larger footprint and thermal management uses external heatsinking |
| OPA2354AIDGKR | 250 MHz GBW, 150 V/µs slew rate, 6.5 nV/√Hz noise - lower speed but superior noise performance | Better suited for low-noise preamplifier stages than high-fidelity video or ADC driving | Choose when SNR dominates over bandwidth; not recommended for >20 MHz video or >10 MSPS ADC interfaces |
Compared with THS4222D and OPA2354AIDGKR, the THS4222DGKRG4 uniquely combines 230 MHz bandwidth, rail-to-rail output, and PowerPAD thermal enhancement - making it optimal for compact, high-density video and data converter interface designs where thermal headroom is constrained.
Availability
THS4222DGKRG4 is available at Aetrix Electronics and suitable for high-speed data acquisition, broadcast video infrastructure, and portable test equipment requiring stable component supply and long-term manufacturability.
Supply support for THS4222DGKRG4 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 delivering analog and embedded processing solutions for industrial, automotive, and communications markets.
The THS4222DGKRG4 belongs to TI's high-speed op-amp product line, engineered specifically for precision signal conditioning in data converter interfaces, video signal chains, and wideband active filters where speed, linearity, and output drive are critical.
FAQ
What is the maximum supply voltage rating for THS4222DGKRG4?
The absolute maximum supply voltage for THS4222DGKRG4 is ±8.25 V (16.5 V total), with recommended operating range from ±1.35 V to ±7.5 V dual supply or 2.7 V to 15 V single supply. Exceeding ±8.25 V risks permanent damage per TI SLOS399G Absolute Maximum Ratings table.
Does THS4222DGKRG4 support single-supply operation?
Yes, THS4222DGKRG4 operates from a single 2.7 V to 15 V supply. At 3.3 V, it delivers 0.15–3.15 V output swing into 499 Ω and maintains 200 MHz bandwidth - verified in TI SLOS399G Section 7 Electrical Characteristics under VS = 3.3 V conditions.
Is THS4222DGKRG4 pin-compatible with THS4222D?
No, THS4222DGKRG4 (MSOP-8 PowerPAD) and THS4222D (SOIC-8) share identical pin functions but differ in physical layout and thermal pad presence. The DGK package requires dedicated PCB land pattern per TI SLMA002, while D package uses standard SOIC footprints - not drop-in replacements.
What is the thermal resistance (θJA) of THS4222DGKRG4?
The junction-to-ambient thermal resistance (θJA) for THS4222DGKRG4 in MSOP-8 PowerPAD package is 260°C/W, per TI SLOS399G Package Dissipation Ratings table. This value assumes JEDEC-standard high-K test PCB; actual θJA improves significantly with ≥1 in² copper pour connected to PowerPAD.
Does THS4222DGKRG4 include power-down functionality?
No, THS4222DGKRG4 is a non-power-down variant. Power-down capability is exclusive to THS4226 (DGQ package) and THS4225 (DGN/DGK packages with PD pin). THS4222DGKRG4 lacks dedicated PD and REF pins - confirmed by pin assignment diagrams in TI SLOS399G Figure 9.
THS4222DGKRG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Amplifier Type:
- Voltage Feedback
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 990V/µs
- Gain Bandwidth Product:
- 120 MHz
- -3db Bandwidth:
- 230 MHz
- Current - Input Bias:
- 900 nA
- Voltage - Input Offset:
- 3 mV
- Current - Supply:
- 14mA (x2 Channels)
- Current - Output / Channel:
- 100 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 15 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-VSSOP
THS4222DGKRG4 FAQ
1.How can I place an order for THS4222DGKRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for THS4222DGKRG4 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 THS4222DGKRG4 reliable?
The price and inventory of THS4222DGKRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for THS4222DGKRG4 is usually 5 days.
3.What payment methods are accepted for THS4222DGKRG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for THS4222DGKRG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for THS4222DGKRG4?
THS4222DGKRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your THS4222DGKRG4 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 THS4222DGKRG4?
For technical support, including THS4222DGKRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your THS4222DGKRG4 requirements.
6.How does Aetrix verify that THS4222DGKRG4 is sourced from the original manufacturer or authorized distributors?
All THS4222DGKRG4 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 THS4222DGKRG4 meets industry standards.
7.What is the process for return or replacement of THS4222DGKRG4?
All THS4222DGKRG4 units undergo pre-shipment inspection (PSI). If there is an issue with THS4222DGKRG4, 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 THS4222DGKRG4 part is unused and in its original packaging.
Return procedure for THS4222DGKRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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