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Texas Instruments OPA2356AIDGKTG4
- Part No.:
- OPA2356AIDGKTG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
OPA2356AIDGKTG4.pdf
- Description:
- IC CMOS 2 CIRCUIT 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,856
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Product details
Overview
OPA2356AIDGKTG4 from Texas Instruments is a dual, high-speed, voltage-feedback CMOS operational amplifier optimized for video signal processing and wideband analog applications. It delivers 200MHz gain-bandwidth product, 360V/µs slew rate, rail-to-rail output swing within 100mV of rails, 0.02% differential gain, and 0.05° differential phase - enabling precision NTSC/PAL video buffering and reconstruction.
For engineers reviewing the OPA2356AIDGKTG4 datasheet, OPA2356AIDGKTG4 pinout, OPA2356AIDGKTG4 application, or OPA2356AIDGKTG4 equivalent, key selection criteria include its dual-channel independence (–90dB crosstalk at 5MHz), low 8.3mA per-channel quiescent current, ±60mA continuous output drive, and operation from 2.5V to 5.5V single supply with ground-sensing input range.
Technical Context
The OPA2356AIDGKTG4 implements a unity-gain-stable voltage-feedback architecture with fully independent amplifier channels in an 8-pin VSSOP package. Its CMOS input stage provides 3pA typical input bias current and 10¹³Ω || 1.5pF input impedance, while the output stage supports 75Ω back-terminated video loads and includes thermal shutdown activation at 160°C junction temperature.
It operates across –40°C to +125°C with rail-to-rail output swing (0.1V from rail at 1kΩ load), common-mode input range extending 100mV below ground and up to 1.5V below V+, and maintains 0.1dB gain flatness to 75MHz under G=+2, RL=150Ω conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-Bandwidth Product | 200MHz - enables stable closed-loop operation up to 100MHz at G=+2 without peaking. |
| Slew Rate | 360V/µs - supports clean 2V step response in ≤8ns with <0.1% settling time of 30ns. |
| Input Bias Current | 3pA - minimizes DC error in high-impedance photodiode transimpedance or active filter designs. |
| Differential Gain/Phase | 0.02%/0.05° - meets broadcast video fidelity requirements for NTSC signals driving 150Ω loads. |
| Supply Voltage Range | 2.5V to 5.5V - allows direct interface with 3.3V and 5V logic/system rails without level-shifting. |
| Channel Crosstalk | –90dB at 5MHz - ensures isolated dual-channel operation in simultaneous sampling or stereo signal paths. |
| Quiescent Current | 8.3mA per channel - balances high-speed performance with power efficiency in portable or thermally constrained systems. |
Pinout & Package
VSSOP-8 (DGK) package: 3.0mm × 3.0mm body, 0.65mm pitch, exposed pad not present, JEDEC MO-187 compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (V+) | Positive Supply | Accepts 2.5V–5.5V single supply; requires local 10µF ceramic bypass capacitor. |
| 2 (Out A) | Amplifier A Output | Rail-to-rail capable; drives 75Ω video loads or 150Ω termination with <0.02% distortion. |
| 3 (–In A) | Inverting Input A | High-impedance CMOS node; ESD-protected to ±0.5V beyond rails. |
| 4 (+In A) | Non-inverting Input A | Supports input common-mode down to 100mV below ground - enables true single-supply sensor interfacing. |
| 5 (–In B) | Inverting Input B | Electrically isolated from Channel A; crosstalk <–90dB at 5MHz ensures signal integrity in dual-path systems. |
| 6 (+In B) | Non-inverting Input B | Identical specs to Pin 4; enables matched dual-channel configurations without interaction. |
| 7 (Out B) | Amplifier B Output | Independent output stage; same drive capability and settling behavior as Pin 2. |
| 8 (V–) | Negative Supply / Ground | Connected to system ground in single-supply mode; establishes reference for rail-to-rail output swing. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output | Swings within 100mV of V+ and V– at 150Ω load - maximizes dynamic range in 3.3V systems. |
| Ground-sensing input | Common-mode range extends 100mV below V– - eliminates need for negative supply in single-ended sensor front-ends. |
| Thermal shutdown | Activates at 160°C junction temperature and resets at 140°C - protects against sustained overload or poor PCB thermal design. |
| Low-noise CMOS input | 5.8nV/√Hz voltage noise at 1MHz - preserves SNR in high-gain photodiode or ultrasound preamp stages. |
| Video-optimized linearity | 0.02% differential gain and 0.05° differential phase - satisfies SMPTE 253M and ITU-R BT.601 broadcast standards. |
Applications
| Video Processing | Ultrasound Imaging |
|---|---|
Use Scenario: Driving composite video signals through 75Ω coaxial cable to display or recording equipment. IC Role / Device Role / Timing Role: Buffer amplifier with back-termination support and minimal group delay variation. Use Value: Maintains 0.02% differential gain and 0.05° differential phase across NTSC bandwidth, preventing color bleeding and timing skew. | Use Scenario: Amplifying low-amplitude, high-frequency echo return signals from piezoelectric transducers. IC Role / Device Role / Timing Role: Low-noise, wideband transimpedance or voltage gain stage before ADC sampling. Use Value: 200MHz GBW and 360V/µs slew rate preserve pulse fidelity up to 15MHz, enabling sub-millimeter spatial resolution. |
| Photodiode Transimpedance | High-Speed Analog-to-Digital Converter Interface |
Use Scenario: Converting current from precision optical sensors (e.g., spectrometers, laser power meters) into voltage. IC Role / Device Role / Timing Role: Transimpedance amplifier with ultra-low input bias current and low input capacitance. Use Value: 3pA input bias current minimizes dark-current-induced offset drift; 5.8nV/√Hz noise preserves weak-signal detectability. | Use Scenario: Driving the input of a 10-bit+ SAR or pipeline ADC operating at ≥10MSPS sample rates. IC Role / Device Role / Timing Role: Input buffer isolating ADC from source impedance and ensuring fast settling before conversion. Use Value: 30ns 0.1% settling time and 75MHz 0.1dB flatness ensure full-scale accuracy across full Nyquist bandwidth. |
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 |
|---|---|---|---|
| OPA2355AIDGKT | Includes shutdown control pin; 220MHz GBW; slightly higher 9.5mA IQ. | Preferred where power gating is required between signal bursts (e.g., pulsed LIDAR receivers). | Select OPA2355AIDGKT only if active power-down functionality is needed; otherwise OPA2356AIDGKTG4 offers lower quiescent current and identical video performance. |
| THS4122DGN | Differential input/output; 3.3V fixed supply; 120MHz small-signal BW; no rail-to-rail output. | Targeted at fully differential signal chains (e.g., baseband I/Q processing), not single-ended video or sensor interfaces. | Choose THS4122DGN only for differential architecture designs requiring common-mode rejection; OPA2356AIDGKTG4 remains optimal for cost-sensitive, single-supply, ground-referenced applications. |
Compared with OPA2355AIDGKT and THS4122DGN, the OPA2356AIDGKTG4 uniquely combines dual-channel independence, ground-sensing inputs, rail-to-rail output, and broadcast-grade video linearity in a compact VSSOP-8 package - making it the preferred choice for space-constrained, single-supply, high-fidelity analog signal conditioning.
Availability
OPA2356AIDGKTG4 is available at Aetrix Electronics and suitable for video processing, ultrasound imaging, photodiode transimpedance amplification, and high-speed ADC/DAC interface applications requiring stable component supply, extended temperature operation (–40°C to +125°C), and consistent tape-and-reel delivery.
Supply support for OPA2356AIDGKTG4 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 company headquartered in Dallas, Texas, delivering analog and embedded processing solutions for industrial, automotive, and personal electronics markets.
The OPAx356 series was designed specifically for high-fidelity, wideband analog signal conditioning - emphasizing video fidelity, low distortion, and single-supply operability in compact packages like the VSSOP-8 used by OPA2356AIDGKTG4.
FAQ
What is the maximum operating temperature range for the OPA2356AIDGKTG4?
The OPA2356AIDGKTG4 is specified over the extended industrial temperature range of –40°C to +125°C. Its absolute maximum operating temperature is +150°C, and thermal shutdown activates at 160°C junction temperature to prevent permanent damage. This makes the OPA2356AIDGKTG4 suitable for under-hood automotive modules, industrial vision systems, and medical ultrasound equipment where ambient temperatures exceed standard commercial limits.
Does the OPA2356AIDGKTG4 support single-supply operation with input signals near ground?
Yes, the OPA2356AIDGKTG4 supports true single-supply operation with input common-mode voltage ranging from 100mV below ground (V–) to 1.5V below V+. This ground-sensing capability allows direct interfacing with sensors, DAC outputs, or other ground-referenced sources without level-shifting circuitry - a critical feature for battery-powered instrumentation and portable diagnostic devices using the OPA2356AIDGKTG4.
What is the recommended power supply bypassing for the OPA2356AIDGKTG4?
Texas Instruments recommends a minimum 10µF ceramic capacitor placed directly at the V+ pin of the OPA2356AIDGKTG4, with optional parallel addition of a 1µF or larger tantalum capacitor for improved low-frequency PSRR when driving heavy resistive loads. This bypassing scheme suppresses supply-induced harmonic distortion and ensures stable 200MHz small-signal bandwidth - essential for maintaining the OPA2356AIDGKTG4's specified video and ultrasound performance.
Can the OPA2356AIDGKTG4 drive a 75Ω video cable directly?
Yes, the OPA2356AIDGKTG4 is explicitly characterized to drive standard back-terminated 75Ω video cables. When configured with proper source termination (e.g., 75Ω series resistor at output), it presents a purely resistive 150Ω load and avoids capacitive loading effects that degrade high-frequency response. This capability enables direct use of the OPA2356AIDGKTG4 in composite video distribution, CCTV camera modules, and broadcast monitor interfaces without external line drivers.
How does channel-to-channel crosstalk affect dual-channel operation of the OPA2356AIDGKTG4?
The OPA2356AIDGKTG4 achieves –90dB channel-to-channel crosstalk at 5MHz due to fully independent internal circuitry and optimized VSSOP-8 layout. This isolation prevents signal leakage between channels during simultaneous high-frequency operation - critical for stereo audio processing, dual-sensor data acquisition, or time-interleaved sampling systems relying on the OPA2356AIDGKTG4. Measured crosstalk remains below –70dB even at 50MHz, confirming robust dual-channel integrity.
OPA2356AIDGKTG4 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:
- Discontinued at Digi-Key
- Amplifier Type:
- CMOS
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 360V/µs
- Gain Bandwidth Product:
- 200 MHz
- -3db Bandwidth:
- 450 MHz
- Current - Input Bias:
- 3 pA
- Voltage - Input Offset:
- 2 mV
- Current - Supply:
- 8.3mA (x2 Channels)
- Current - Output / Channel:
- 100 mA
- Voltage - Supply Span (Min):
- 2.5 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-VSSOP
OPA2356AIDGKTG4 FAQ
1.How can I place an order for OPA2356AIDGKTG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA2356AIDGKTG4 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 OPA2356AIDGKTG4 reliable?
The price and inventory of OPA2356AIDGKTG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA2356AIDGKTG4 is usually 5 days.
3.What payment methods are accepted for OPA2356AIDGKTG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA2356AIDGKTG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA2356AIDGKTG4?
OPA2356AIDGKTG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA2356AIDGKTG4 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 OPA2356AIDGKTG4?
For technical support, including OPA2356AIDGKTG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA2356AIDGKTG4 requirements.
6.How does Aetrix verify that OPA2356AIDGKTG4 is sourced from the original manufacturer or authorized distributors?
All OPA2356AIDGKTG4 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 OPA2356AIDGKTG4 meets industry standards.
7.What is the process for return or replacement of OPA2356AIDGKTG4?
All OPA2356AIDGKTG4 units undergo pre-shipment inspection (PSI). If there is an issue with OPA2356AIDGKTG4, 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 OPA2356AIDGKTG4 part is unused and in its original packaging.
Return procedure for OPA2356AIDGKTG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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