My Inquiry
My Account
Texas Instruments THS4226DGQ
- Part No.:
- THS4226DGQ
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 10-PowerTFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
THS4226DGQ.pdf
- Description:
- IC OPAMP VFB 2 CIRCUIT 10HVSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,525
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
THS4226DGQ from Texas Instruments is a dual, rail-to-rail output, high-speed voltage-feedback operational amplifier with power-down capability, designed for low-distortion signal conditioning in 3 V to 15 V single-supply or ±1.35 V to ±7.5 V dual-supply 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 supports 100 mA output drive - enabling high-fidelity video buffering and ADC driver applications.
For engineers reviewing the THS4226DGQ datasheet, THS4226DGQ pinout, THS4226DGQ application, or THS4226DGQ equivalent, key selection considerations include its DGQ-10 thermally enhanced PowerPAD MSOP package, dual-channel isolation (−90 dB crosstalk at 5 MHz), power-down control via dedicated PD pins, and verified performance in single-supply video gain stages and high-resolution data acquisition front-ends.
Technical Context
The THS4226DGQ implements a voltage-feedback architecture optimized for unity-gain stability and wideband operation up to 230 MHz. Its rail-to-rail output stage achieves ±4.8 V swing into 2 kΩ under ±5 V supplies, while maintaining ultra-low harmonic distortion through precision internal biasing and matched transistor pairs.
Power-down functionality is implemented via two independent PD pins (Pin 5 and Pin 10), each referenced to an external REF pin (Pin 1) that sets enable/disable thresholds. This allows flexible sequencing and channel-specific sleep control without affecting the active channel's quiescent operating point or AC performance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Small-signal bandwidth | 230 MHz at G = 1 (±5 V, RL = 499 Ω): enables baseband video and IF signal amplification without phase roll-off. |
| Slew rate | 975 V/µs (G = 1, VO = ±2.5 Vpp): supports fast transient response in pulse-amplifier and DAC output stages. |
| Harmonic distortion | HD2 = −90 dBc, HD3 = −100 dBc at 5 MHz (RL = 499 Ω): preserves signal fidelity in 12–14-bit ADC driver applications. |
| Rail-to-rail output swing | −4.8 V / +4.8 V into 2 kΩ (±5 V supply): maximizes dynamic range in low-voltage systems without level-shifting circuitry. |
| Power-down current | ≤700 µA per channel (VS = ±5 V): reduces idle power by >95% versus active mode (14 mA/ch), critical for battery-powered instrumentation. |
| Crosstalk | −90 dB at 5 MHz (ch-to-ch): ensures channel independence in dual-path signal chains such as I/Q demodulators. |
| Input voltage noise | 13 nV/√Hz at 1 MHz: maintains SNR integrity when driving high-resolution analog-to-digital converters. |
Pinout & Package
DGQ-10 is a 10-pin thermally enhanced MSOP package with exposed PowerPAD on the underside, requiring solder connection to a PCB thermal plane for reliable power dissipation (ΘJA = 58 °C/W). The PowerPAD significantly improves thermal performance over standard MSOP variants and is mandatory for sustained 100 mA output operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (REF) | Reference voltage input | Sets power-down threshold levels; tied to VS− (0 V) or VS+ (floating) to configure enable logic polarity. |
| 2 (1IN−) | Inverting input, Channel 1 | High-impedance node (33 MΩ) for feedback network connection in inverting configurations. |
| 3 (1IN+) | Non-inverting input, Channel 1 | DC-biased input for single-supply operation; common-mode range extends to VS− + 1.1 V. |
| 4 (VS−) | Negative supply rail | Accepts ground (single supply) or negative rail (dual supply); must be decoupled with 0.1 µF + 10 µF capacitors. |
| 5 (1PD) | Power-down control, Channel 1 | Active-high enable when PD ≥ REF + 1.8 V; disables output stage and reduces quiescent current to µA range. |
| 6 (VS+) | Positive supply rail | Supports 2.7 V to 15 V single supply or ±1.35 V to ±7.5 V dual supply; PSRR = 75 dB typical. |
| 7 (2OUT) | Output, Channel 2 | Capable of sourcing/sinking 100 mA; rail-to-rail swing requires load ≥ 499 Ω for full specification compliance. |
| 8 (2IN−) | Inverting input, Channel 2 | Electrically isolated from Channel 1 (−90 dB crosstalk); used for differential gain or independent signal paths. |
| 9 (2IN+) | Non-inverting input, Channel 2 | Matches Channel 1 specs; supports DC-coupled biasing with matched resistor networks for offset cancellation. |
| 10 (2PD) | Power-down control, Channel 2 | Independent control of Channel 2; allows asymmetric power management in multi-channel systems. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Delivers full-scale output voltage headroom into high-impedance loads, eliminating need for external level shifters in 3.3 V or 5 V systems. |
| Channel-independent power-down | Enables selective shutdown of one amplifier while maintaining active operation of the other - ideal for time-multiplexed sensor interfaces. |
| Ultra-low harmonic distortion | Preserves spectral purity in video line drivers and high-speed data converter interfaces where spurious-free dynamic range (SFDR) is critical. |
| Thermally enhanced PowerPAD | Reduces junction-to-ambient thermal resistance by >50% vs. standard MSOP, supporting continuous 100 mA output without derating at 85°C ambient. |
| Single-supply compatibility | Operates from 2.7 V to 15 V with input common-mode range extending within 1.1 V of either rail - simplifies biasing in portable and industrial equipment. |
Applications
| Video Line Driver | High-Speed ADC Driver |
|---|---|
Use Scenario: Driving composite NTSC/PAL video signals across 75 Ω coaxial cables to multiple monitors or recording devices. IC Role / Device Role / Timing Role: Dual-channel buffer with 0.007% differential gain and 0.007° differential phase error at 40 MHz (0.1 dB flat bandwidth). Use Value: Maintains broadcast-grade color fidelity without external passive equalization or gain trimming components. | Use Scenario: Conditioning analog inputs to 12–14-bit, 10–50 MSPS analog-to-digital converters in test equipment and medical imaging front-ends. IC Role / Device Role / Timing Role: Low-noise, low-distortion gain stage with 13 nV/√Hz input voltage noise and −90 dBc HD2 at 5 MHz. Use Value: Maximizes effective number of bits (ENOB) by minimizing added noise and harmonic artifacts before digitization. |
| Active Filter Stage | Low-Voltage Signal Chain Preamp |
Use Scenario: Implementing 2nd-order Sallen-Key or MFB bandpass filters for RF intermediate frequency (IF) signal conditioning in communications receivers. IC Role / Device Role / Timing Role: Unity-gain stable voltage-feedback amplifier with 230 MHz bandwidth and 975 V/µs slew rate. Use Value: Supports filter corner frequencies up to 50 MHz with minimal passband droop and group delay variation. | Use Scenario: Amplifying low-level sensor outputs (e.g., piezoelectric, strain gauge, or thermopile) in battery-powered IoT nodes and portable diagnostics. IC Role / Device Role / Timing Role: Dual-channel preamplifier operating from 3.3 V supply with rail-to-rail input/output and 14 mA total quiescent current. Use Value: Extends battery life via programmable power-down while preserving signal integrity during active measurement windows. |
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 |
|---|---|---|---|
| THS4222DGQ | No power-down pins; fixed dual-channel operation with identical AC specs and pin-compatible footprint. | Lacks channel-level power management; suitable only for always-on dual-path designs. | Select THS4222DGQ when power-down functionality is unnecessary and board space is constrained. |
| OPA2691IDGQR | Higher 1.4 GHz bandwidth but higher 3.5 mA/ch quiescent current; no rail-to-rail output (clips ~1.2 V from rails). | Better for RF/IF gain blocks above 100 MHz; unsuitable for rail-sensing or low-voltage video swing. | Choose OPA2691IDGQR only when bandwidth >500 MHz is required and supply headroom permits non-rail output. |
Compared with THS4222DGQ and OPA2691IDGQR, the THS4226DGQ uniquely balances 230 MHz bandwidth, rail-to-rail output, dual-channel isolation, and per-channel power-down - making it optimal for portable, multi-function signal chains where dynamic power scaling and full-voltage utilization are design priorities.
Availability
THS4226DGQ is available at Aetrix Electronics and suitable for video line driving, high-speed ADC interfacing, active filtering, and low-voltage sensor preamplification requiring stable component supply across industrial, medical, and test equipment production cycles.
Supply support for THS4226DGQ 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 op-amps and precision signal-chain solutions.
The THS4226DGQ belongs to TI's THS422x family of rail-to-rail output, low-distortion, high-speed op-amps engineered specifically for demanding video, data acquisition, and instrumentation applications where bandwidth, linearity, and power efficiency intersect.
FAQ
What is the maximum supply voltage rating for the THS4226DGQ?
The THS4226DGQ has an absolute maximum supply voltage rating of ±8.25 V (16.5 V total) for dual-supply operation and 15 V for single-supply use. Operation beyond these limits risks permanent damage. Recommended operating range is ±1.35 V to ±7.5 V (dual) or 2.7 V to 15 V (single), with thermal derating required above 85°C ambient due to PowerPAD thermal constraints.
How does the REF pin function in the THS4226DGQ power-down circuit?
The REF pin (Pin 1) in the THS4226DGQ establishes the reference voltage for interpreting the logic state of the two PD pins (Pins 5 and 10). When REF is tied to VS− (0 V), PD ≥ +1.8 V enables the channel; when REF is floating or tied to VS+, PD ≤ −1.5 V enables it. This dual-threshold flexibility allows system-level control of power-down behavior without additional level-shifting circuitry.
Can the THS4226DGQ drive a 75 Ω video load while maintaining specified differential phase and gain?
Yes - the THS4226DGQ is characterized for 0.007° differential phase and 0.007% differential gain into 150 Ω loads at G = 2 (NTSC/PAL), and its 100 mA output drive capability supports direct 75 Ω termination with minor gain adjustment. For optimal video performance, use G = 2 with 150 Ω back-termination and ensure proper PCB layout with controlled impedance traces and local decoupling.
What is the thermal impact of omitting the PowerPAD connection on the THS4226DGQ DGQ-10 package?
Omitting the PowerPAD solder connection on the THS4226DGQ DGQ-10 package increases ΘJA from 58 °C/W to >120 °C/W, causing junction temperature to exceed 125°C at just 50 mA continuous output into 150 Ω at 25°C ambient. This violates long-term reliability limits and triggers distortion rise; TI mandates PowerPAD connection to a thermally robust PCB plane per SLMA002/SLMA004 guidelines.
Is the THS4226DGQ pin-compatible with other packages in the THS422x family, such as DGN or DGK?
No - the THS4226DGQ uses a 10-pin DGQ package with dedicated REF and dual PD pins, whereas THS4222DGN and THS4222DGK are 8-pin packages lacking REF and having only one shared PD pin. Pin mapping, thermal pad configuration, and power-down control architecture differ fundamentally; PCB layout and firmware control logic must be redesigned for DGQ migration.
THS4226DGQ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 10-PowerTFSOP, 10-MSOP (0.118", 3.00mm Width)
- Packaging:
- Bulk
- Product Status:
- Active
- 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:
- 10-HVSSOP
THS4226DGQ FAQ
1.How can I place an order for THS4226DGQ through Aetrix?
Please submit a Request for Quotation (RFQ) for THS4226DGQ 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 THS4226DGQ reliable?
The price and inventory of THS4226DGQ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for THS4226DGQ is usually 5 days.
3.What payment methods are accepted for THS4226DGQ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for THS4226DGQ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for THS4226DGQ?
THS4226DGQ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your THS4226DGQ 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 THS4226DGQ?
For technical support, including THS4226DGQ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your THS4226DGQ requirements.
6.How does Aetrix verify that THS4226DGQ is sourced from the original manufacturer or authorized distributors?
All THS4226DGQ 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 THS4226DGQ meets industry standards.
7.What is the process for return or replacement of THS4226DGQ?
All THS4226DGQ units undergo pre-shipment inspection (PSI). If there is an issue with THS4226DGQ, 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 THS4226DGQ part is unused and in its original packaging.
Return procedure for THS4226DGQ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
THS4226DGQ Tags
-
LM358DT
STMicroelectronics
-
LM358DR
Texas Instruments
-
LM2904DR
Texas Instruments
-
LM358ADR
Texas Instruments
-
LM2904DGKR
Texas Instruments
-
LM324DR
Texas Instruments
-
MCP6006T-E/OT
Microchip Technology
-
MCP6006UT-E/OT
Microchip Technology
-
LM324PWR
Texas Instruments
-
LM2902PWR
Texas Instruments
-
LM2902DR
Texas Instruments
-
LM358P
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
