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Texas Instruments OPA2356MDGKTEP
- Part No.:
- OPA2356MDGKTEP
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
OPA2356MDGKTEP.pdf
- Description:
- IC CMOS 2 CIRCUIT 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:299
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Product details
Overview
OPA2356MDGKTEP from Texas Instruments is a dual, high-speed, voltage-feedback CMOS operational amplifier optimized for video processing and wideband signal conditioning. It delivers 200-MHz gain-bandwidth product, 360-V/µs slew rate, rail-to-rail output swing within 100 mV of rails, 5.8-nV/√Hz input voltage noise, and operates from 2.5 V to 5.5 V single supply - enabling use in precision ADC input buffers and photodiode transimpedance amplifiers in defense-grade systems.
For engineers reviewing the OPA2356MDGKTEP datasheet, OPA2356MDGKTEP pinout, OPA2356MDGKTEP application, or OPA2356MDGKTEP equivalent, key selection criteria include its –55°C to 125°C extended temperature range, VSSOP-8 package with independent channel circuitry for <–90-dB crosstalk at 5 MHz, thermal shutdown protection, and verified differential gain (0.02%) and phase (0.05°) performance for composite video.
Technical Context
The OPA2356MDGKTEP employs a CMOS input stage with 3-pA typical input bias current and rail-to-rail output stage capable of ±100-mA peak current into 150-Ω loads. Its unity-gain stable architecture supports configurations from voltage follower to G = 10, with 0.1-dB gain flatness up to 75 MHz and 450-MHz small-signal bandwidth at G = 1.
Designed for single-supply operation down to 2.5 V, it features an input common-mode range extending 100 mV below ground and up to 1.5 V below V+, enabling true ground-referenced signal handling. Thermal shutdown activates at 160°C junction temperature and resets at 140°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-bandwidth product | 200 MHz - enables stable closed-loop operation up to G = 10 with usable bandwidth >20 MHz |
| Slew rate | 360 V/µs - supports clean 2-V step response in <8 ns with <0.1% settling |
| Input voltage noise density | 5.8 nV/√Hz at 1 MHz - critical for low-noise photodiode transimpedance amplifiers |
| Output swing | Within 100 mV of rails at 150-Ω load - preserves dynamic range in 3.3-V and 5-V systems |
| Supply voltage range | 2.5 V to 5.5 V single supply - compatible with modern low-voltage embedded and aerospace power rails |
| Operating temperature | –55°C to 125°C - qualified for extended-life military, space, and medical applications |
| Channel isolation | –90 dB at 5 MHz - ensures minimal interaction between channels in dual-channel signal paths |
Pinout & Package
VSSOP-8 (DGK) package: 3.00 mm × 3.00 mm body, 0.65-mm lead pitch, exposed pad not electrically connected. Designed for high-density PCB layouts with thermal performance RθJA = 171.4°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - Out A | Output, Channel A | Capable of ±100-mA peak current; swings rail-to-rail within 100 mV under 150-Ω load |
| 2 - –In A | Inverting input, Channel A | CMOS input with 3-pA bias current; accepts signals down to 100 mV below ground |
| 3 - +In A | Noninverting input, Channel A | High-impedance node (1013 Ω || 1.5 pF); used for reference biasing in single-supply transimpedance designs |
| 4 - V– | Negative supply | Supports dual-supply operation (±1.25 V to ±2.75 V) or grounded single-supply configuration |
| 5 - +In B | Noninverting input, Channel B | Independent from Channel A; enables dual-path signal conditioning without crosstalk degradation |
| 6 - –In B | Inverting input, Channel B | Same electrical specs as Pin 2; validated for simultaneous high-frequency operation with Channel A |
| 7 - Out B | Output, Channel B | Functionally identical to Pin 1; maintains <–90-dB isolation from Out A at 5 MHz |
| 8 - V+ | Positive supply | Accepts 2.5–5.5 V; internal regulation ensures stable quiescent current (8.3 mA per channel) across voltage range |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output | Swings within 100 mV of V+ and V– at 150-Ω load - maximizes signal headroom in low-voltage systems |
| Ground-sensing input | Common-mode range extends 100 mV below ground - eliminates need for level-shifting in single-supply sensor interfaces |
| Thermal shutdown protection | Activates at 160°C junction temperature and auto-resets at 140°C - prevents permanent damage during overload |
| Low input bias current | 3 pA typical - minimizes voltage error across high-impedance sources (e.g., photodiodes, piezoelectric sensors) |
| Video-optimized performance | Differential gain = 0.02%, differential phase = 0.05° - meets broadcast-quality NTSC requirements |
| Extended temperature qualification | Tested and characterized over –55°C to 125°C - supports aerospace, defense, and downhole industrial deployments |
Applications
| Video Processing | Photodiode Transimpedance Amplifier |
|---|---|
Use Scenario: Driving back-terminated 75-Ω composite video lines in avionics display systems. IC Role / Device Role / Timing Role: Buffer and line driver with precise gain flatness and minimal phase distortion. Use Value: 0.02% differential gain and 0.05° differential phase ensure broadcast-compliant color fidelity at 75 MHz. |
Use Scenario: Converting photocurrent from high-speed photodiodes in optical network monitoring. IC Role / Device Role / Timing Role: Low-noise, wideband transimpedance amplifier with 5.8-nV/√Hz input voltage noise. Use Value: 200-MHz GBW and 3-pA input bias current enable >4-MHz bandwidth with sub-pA dark-current error. |
| ADC Input Buffer | Active Filter (Anti-Aliasing) |
Use Scenario: Driving the switched-capacitor input of 16-bit SAR ADCs like ADS8326 in ruggedized data acquisition. IC Role / Device Role / Timing Role: High-fidelity input buffer isolating source impedance from ADC charge injection. Use Value: 360-V/µs slew rate and 0.1% settling in 30 ns prevent code-dependent distortion in 1-MSPS sampling. |
Use Scenario: Implementing 500-kHz Butterworth low-pass filters in medical imaging front-ends. IC Role / Device Role / Timing Role: Active filter amplifier with 75-MHz 0.1-dB gain flatness and low harmonic distortion. Use Value: –81 dBc second-harmonic distortion at 1 MHz ensures clean spectral purity for anti-aliasing before digitization. |
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 |
|---|---|---|---|
| OPA2356MDGKR | Same silicon, commercial temperature range (–40°C to 85°C), non-EP qualification | Lacks extended temperature, controlled baseline, and traceability required for defense/aerospace | Select only for cost-sensitive industrial or test equipment where extended temp is unnecessary |
| LMH6629MA/NOPB | Higher 1.5-GHz GBW but higher 9.5-nV/√Hz noise and no rail-to-rail output (clips 1.2 V from rails) | Better for RF IF amplification; unsuitable for low-voltage video or precision single-supply buffering | Prefer when ultra-wide bandwidth outweighs noise and output swing constraints |
Compared with OPA2356MDGKTEP, OPA2356MDGKR omits military-grade reliability controls and temperature range, while LMH6629MA/NOPB trades off noise and output swing for raw bandwidth - making OPA2356MDGKTEP the sole choice for extended-temp, low-noise, rail-to-rail video and sensor signal chains.
Availability
OPA2356MDGKTEP is available at Aetrix Electronics and suitable for video processing, photodiode transimpedance amplification, and high-speed ADC buffering requiring stable component supply across extended temperature and long lifecycle programs.
Supply support for OPA2356MDGKTEP 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 with deep expertise in high-speed amplifiers and space-grade components.
The OPA2356MDGKTEP belongs to TI's Enhanced Product (EP) op amp family, engineered specifically for defense, aerospace, and medical applications demanding extended temperature operation, controlled manufacturing baselines, and full traceability.
FAQ
What is the operating temperature range of the OPA2356MDGKTEP?
The OPA2356MDGKTEP is fully specified and tested over –55°C to 125°C ambient temperature. This extended range, combined with thermal shutdown activation at 160°C junction temperature, makes it suitable for deployment in harsh environments including aerospace avionics, downhole oilfield tools, and military communications systems where the OPA2356MDGKTEP must maintain parametric integrity under thermal stress.
Does the OPA2356MDGKTEP support single-supply operation?
Yes, the OPA2356MDGKTEP supports true single-supply operation from 2.5 V to 5.5 V. Its input common-mode range extends 100 mV below ground and up to 1.5 V below V+, and its output swings within 100 mV of both rails - enabling ground-referenced signal acquisition and full-scale utilization of low-voltage ADCs without level-shifting circuitry. This capability is explicitly validated in the OPA2356MDGKTEP datasheet Section 7.3.1.
What is the maximum output current capability of the OPA2356MDGKTEP?
The OPA2356MDGKTEP delivers ±100 mA peak output current and ±60 mA continuous output current per channel into resistive loads. The datasheet cautions against sustained dc currents above ±60 mA (see Figure 20), and thermal shutdown protects against overload. For 150-Ω video loads, the OPA2356MDGKTEP achieves rail-to-rail swing with <0.3-V drop - confirming its suitability for driving back-terminated 75-Ω transmission lines.
How does the OPA2356MDGKTEP perform in photodiode transimpedance applications?
The OPA2356MDGKTEP excels in photodiode transimpedance amplifiers due to its 3-pA input bias current, 5.8-nV/√Hz input voltage noise, and 200-MHz gain-bandwidth product. These parameters minimize dark-current error and Johnson noise contribution while supporting >4-MHz bandwidth in typical configurations - as demonstrated in Application Note SBOS955 Section 8.2.1. The OPA2356MDGKTEP's ground-sensing input further simplifies single-supply biasing of reverse-biased photodiodes.
Is the OPA2356MDGKTEP pin-compatible with other dual op amps in VSSOP-8?
No documented pin-compatible replacements exist for the OPA2356MDGKTEP in VSSOP-8. While the pinout (Out A, –In A, +In A, V–, +In B, –In B, Out B, V+) matches standard dual op amp conventions, its combination of extended temperature rating, EP qualification, and video-optimized AC performance is unique. Substitution requires full validation of thermal, noise, and distortion behavior - especially for defense or medical use cases where the OPA2356MDGKTEP's controlled baseline and traceability are mandatory.
OPA2356MDGKTEP 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:
- Active
- 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:
- 80 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -55°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-VSSOP
OPA2356MDGKTEP FAQ
1.How can I place an order for OPA2356MDGKTEP through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA2356MDGKTEP 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 OPA2356MDGKTEP reliable?
The price and inventory of OPA2356MDGKTEP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA2356MDGKTEP is usually 5 days.
3.What payment methods are accepted for OPA2356MDGKTEP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA2356MDGKTEP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA2356MDGKTEP?
OPA2356MDGKTEP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA2356MDGKTEP 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 OPA2356MDGKTEP?
For technical support, including OPA2356MDGKTEP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA2356MDGKTEP requirements.
6.How does Aetrix verify that OPA2356MDGKTEP is sourced from the original manufacturer or authorized distributors?
All OPA2356MDGKTEP 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 OPA2356MDGKTEP meets industry standards.
7.What is the process for return or replacement of OPA2356MDGKTEP?
All OPA2356MDGKTEP units undergo pre-shipment inspection (PSI). If there is an issue with OPA2356MDGKTEP, 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 OPA2356MDGKTEP part is unused and in its original packaging.
Return procedure for OPA2356MDGKTEP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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