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Texas Instruments OPA2356MDGKREP
- Part No.:
- OPA2356MDGKREP
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
OPA2356MDGKREP.pdf
- Description:
- IC CMOS 2 CIRCUIT 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,595
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Product details
Overview
OPA2356MDGKREP from Texas Instruments is a dual-channel, high-speed, voltage-feedback CMOS operational amplifier optimized for video processing and precision wideband signal conditioning. It delivers 200-MHz gain-bandwidth product, 360 V/µs slew rate, 5.8 nV/√Hz input voltage noise, rail-to-rail output swing within 100 mV of rails, and operates from 2.5 V to 5.5 V single supply - enabling use in 75-Ω video line drivers and photodiode transimpedance amplifiers.
For engineers reviewing the OPA2356MDGKREP datasheet, OPA2356MDGKREP pinout, OPA2356MDGKREP application, or OPA2356MDGKREP 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 in NTSC video systems.
Technical Context
The OPA2356MDGKREP 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 voltage-feedback architecture supports unity-gain stability while maintaining 450 MHz small-signal bandwidth and 75 MHz 0.1-dB gain flatness - critical for composite video and high-fidelity ADC/DAC buffering.
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 acquisition. Thermal shutdown activates at 160°C junction temperature and resets at 140°C, ensuring robustness in aerospace and medical systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-bandwidth product | 200 MHz - enables stable closed-loop gain ≥10 at >20 MHz, suitable for anti-aliasing filters ahead of 1-MSPS ADCs. |
| Slew rate | 360 V/µs - supports distortion-free reproduction of fast 4-V step signals with ≤8 ns overload recovery. |
| Input voltage noise density | 5.8 nV/√Hz at 1 MHz - minimizes signal degradation in low-level photodiode transimpedance applications. |
| Differential gain/phase error | 0.02% / 0.05° at NTSC - meets broadcast-grade video fidelity requirements without external calibration. |
| Supply voltage range | 2.5 V to 5.5 V single supply - allows direct interface with 3.3 V and 5 V logic/system rails without level-shifting. |
| Operating temperature | –55°C to 125°C - qualified for defense, aerospace, and industrial environments per controlled baseline sourcing. |
| Quiescent current per channel | 8.3 mA at 5 V - balances speed and power efficiency for dual-channel high-speed signal chains. |
Pinout & Package
VSSOP-8 (DGK) package: 3.00 mm × 3.00 mm body, 0.65 mm lead pitch, exposed pad optional; thermally enhanced for 171.4°C/W junction-to-ambient resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - Out A | Output, Channel A | Rail-to-rail output capable of ±100 mA peak drive into 150 Ω; settles to 0.1% in 30 ns for 2-V steps. |
| 2 - –In A | Inverting input, Channel A | High-impedance CMOS node (10¹³ Ω || 1.5 pF); accepts signals down to 100 mV below ground. |
| 3 - +In A | Noninverting input, Channel A | Common-mode range extends to (V+) – 1.5 V; enables single-supply sensor interfacing with ground reference. |
| 4 - V– | Negative supply | Accepts ground or negative rail; differential supply must be 1.8–5.5 V; absolute max = (V+) – 7.5 V. |
| 5 - +In B | Noninverting input, Channel B | Electrically isolated from Channel A; crosstalk <–90 dB at 5 MHz ensures independent dual-channel operation. |
| 6 - –In B | Inverting input, Channel B | Matched input characteristics to Channel A; supports differential signaling or separate signal paths. |
| 7 - Out B | Output, Channel B | Identical AC/DC specs to Out A; thermal shutdown protects both channels simultaneously. |
| 8 - V+ | Positive supply | Supports 2.5–5.5 V operation; PSRR = 66–80 dB ensures immunity to supply ripple in mixed-signal systems. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Within 100 mV of V+ and V– at 150 Ω load - preserves dynamic range in 3.3 V systems driving ADC inputs. |
| Ultra-low input bias current | 3 pA typical - prevents loading errors in high-impedance sensor interfaces (e.g., >10 MΩ photodiodes). |
| Video-optimized AC performance | 0.02% differential gain / 0.05° differential phase - eliminates color distortion in SD/HD video distribution. |
| Thermal shutdown protection | Activates at 160°C junction temperature; auto-resets at 140°C - safeguards against sustained overloads. |
| Extended temperature qualification | Specified from –55°C to 125°C with controlled baseline - meets MIL-PRF-38535 requirements for space-grade use. |
Applications
| Video Processing | Photodiode Transimpedance Amplifier |
|---|---|
|
Use Scenario: Driving 75-Ω back-terminated coaxial cables in broadcast video equipment and medical imaging displays. IC Role / Device Role / Timing Role: Voltage buffer and line driver with minimal group delay variation across 0–75 MHz. Use Value: 0.02% differential gain and 0.05° differential phase ensure accurate NTSC/PAL color reproduction without post-processing. |
Use Scenario: Converting photocurrent from high-speed photodiodes (e.g., SFH213) into amplified voltage signals. IC Role / Device Role / Timing Role: Transimpedance amplifier with 200-MHz GBW and 5.8 nV/√Hz noise for >10-MHz optical data links. Use Value: 3 pA input bias current avoids signal loss across multi-MΩ feedback resistors; low noise maintains SNR in low-light detection. |
| ADC Input Buffer | Active Filter (Anti-Aliasing) |
|
Use Scenario: Conditioning analog inputs to precision SAR ADCs such as ADS8326 in data acquisition systems. IC Role / Device Role / Timing Role: High-speed buffer isolating switched-capacitor ADC input from source impedance and charge injection. Use Value: 360 V/µs slew rate and 30 ns 0.1% settling enable full-scale updates at 1 MSPS without missing codes. |
Use Scenario: Implementing 500-kHz second-order Butterworth low-pass filters in communication front-ends. IC Role / Device Role / Timing Role: Active filter amplifier in multiple-feedback (MFB) topology with flat passband response. Use Value: 75 MHz 0.1-dB gain flatness ensures linear phase and amplitude response up to filter cutoff, minimizing aliasing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2356IDGKR | Commercial-grade (–40°C to 125°C), same electrical specs but non-EP process; no controlled baseline or extended lifecycle support. | Lacks military temperature range and traceability; unsuitable for aerospace/defense deployments requiring long-term supply assurance. | Select OPA2356MDGKREP when extended temperature, radiation-hardened handling, or defense procurement compliance is required. |
| LMH6629MA/NOPB | Higher 1.5-GHz GBW and 950 V/µs slew rate, but 11.5 mA/channel IQ and no rail-to-rail output; requires dual supply for ground-referenced inputs. | Better for RF IF amplification above 100 MHz; not optimized for video fidelity or single-supply sensor interfaces. | Choose LMH6629MA/NOPB only when >500 MHz bandwidth is mandatory and power/thermal constraints allow. |
Compared with OPA2356IDGKR, the OPA2356MDGKREP adds guaranteed –55°C operation and production traceability; versus LMH6629MA/NOPB, it trades raw speed for video-optimized linearity, lower power, and single-supply flexibility - making it superior for embedded video, medical imaging, and ruggedized data acquisition.
Availability
OPA2356MDGKREP is available at Aetrix Electronics and suitable for video processing, photodiode transimpedance amplification, and ADC input buffering requiring stable component supply across extended temperature and long-lifecycle programs.
Supply support for OPA2356MDGKREP 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 specializing in analog and embedded processing technologies, with leadership in precision amplifiers, data converters, and power management ICs.
The OPA2356MDGKREP belongs to TI's high-speed precision op amp product line, engineered specifically for demanding video, optical networking, and instrumentation applications where bandwidth, noise, and DC accuracy must coexist under harsh environmental conditions.
FAQ
What is the operating temperature range of the OPA2356MDGKREP?
The OPA2356MDGKREP is specified for continuous operation from –55°C to 125°C ambient temperature. This extended range is validated per MIL-PRF-38535 requirements and supported by controlled baseline manufacturing, making it suitable for aerospace, defense, and industrial applications where thermal extremes are expected. The device incorporates thermal shutdown that activates at 160°C junction temperature and resets at 140°C.
Does the OPA2356MDGKREP support single-supply operation?
Yes, the OPA2356MDGKREP 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 rail-to-rail output swings within 100 mV of both supply rails. This enables ground-referenced signal acquisition and full-scale output in 3.3 V systems - confirmed in the datasheet's Recommended Operating Conditions and Electrical Characteristics tables.
What is the maximum load capacitance the OPA2356MDGKREP can drive stably?
The OPA2356MDGKREP can drive up to 100 pF capacitive load with proper series output resistance (RS), as shown in Figure 14 of the datasheet. For example, with CL = 47 pF, RS = 36 Ω is recommended; for CL = 100 pF, RS = 24 Ω ensures stability. Uncompensated direct capacitive loading degrades phase margin and may cause peaking or oscillation - always use the RS vs CL curve to select appropriate isolation resistance.
Is the OPA2356MDGKREP pin-compatible with other dual op amps in VSSOP-8?
No - the OPA2356MDGKREP has a unique pinout optimized for dual independent channels: Out A (1), –In A (2), +In A (3), V– (4), +In B (5), –In B (6), Out B (7), V+ (8). It is not pin-compatible with generic dual op amps like LMV358 or TLV2372, which use different pin assignments (e.g., V+ on pin 8 but V– on pin 4, with shared supply pins). Always verify pin functions using the "Pin Configuration and Functions" section of SBOS955 before PCB layout.
How does the OPA2356MDGKREP perform in photodiode transimpedance applications?
The OPA2356MDGKREP excels in photodiode transimpedance applications due to its 3 pA input bias current (minimizing offset error across high-value feedback resistors), 5.8 nV/√Hz input voltage noise (critical for low-light SNR), and 200-MHz gain-bandwidth product (enabling >10-MHz bandwidth with proper compensation). Application note SBOS955 Section 8.2.1 provides design equations and layout guidance specifically for this use case.
OPA2356MDGKREP 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
OPA2356MDGKREP FAQ
1.How can I place an order for OPA2356MDGKREP through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA2356MDGKREP 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 OPA2356MDGKREP reliable?
The price and inventory of OPA2356MDGKREP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA2356MDGKREP is usually 5 days.
3.What payment methods are accepted for OPA2356MDGKREP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA2356MDGKREP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA2356MDGKREP?
OPA2356MDGKREP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA2356MDGKREP 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 OPA2356MDGKREP?
For technical support, including OPA2356MDGKREP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA2356MDGKREP requirements.
6.How does Aetrix verify that OPA2356MDGKREP is sourced from the original manufacturer or authorized distributors?
All OPA2356MDGKREP 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 OPA2356MDGKREP meets industry standards.
7.What is the process for return or replacement of OPA2356MDGKREP?
All OPA2356MDGKREP units undergo pre-shipment inspection (PSI). If there is an issue with OPA2356MDGKREP, 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 OPA2356MDGKREP part is unused and in its original packaging.
Return procedure for OPA2356MDGKREP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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