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Texas Instruments OPA357AIDBVR
- Part No.:
- OPA357AIDBVR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SOT-23-6
- Datasheet:
-
OPA357AIDBVR.pdf
- Description:
- IC OPAMP VFB 1 CIRCUIT SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:2,271
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Product details
Overview
OPA357AIDBVR from Texas Instruments is a single-channel, rail-to-rail input/output CMOS operational amplifier optimized for high-speed video and precision analog signal conditioning. It delivers 250-MHz small-signal bandwidth, 150 V/µs slew rate, and 6.5 nV/√Hz input voltage noise, enabling high-fidelity RGB video buffering and photodiode transimpedance amplification in portable ultrasound front-ends.
For engineers reviewing the OPA357AIDBVR datasheet, OPA357AIDBVR pinout, OPA357AIDBVR application, or OPA357AIDBVR equivalent, key selection criteria include its shutdown-enabled operation (IQ < 6 µA), ±100 mA output drive into 75-Ω video loads, and guaranteed performance across –40°C to +125°C with 2.5-V to 5.5-V supply range.
Technical Context
The OPA357AIDBVR employs a complementary differential input stage-N-channel and P-channel pairs-to achieve rail-to-rail common-mode input range extending 100 mV beyond both supply rails. Its class AB output stage supports 100-mV rail-to-rail swing at 1-kΩ load while delivering >100 mA continuous output current.
Internal thermal shutdown activates at 160°C junction temperature and resets at 140°C. The enable pin uses a Schmitt-trigger input referenced to V−, with logic-high threshold ≥2 V and logic-low threshold ≤0.8 V, ensuring robust noise immunity during power-gating in battery-powered systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Unity-Gain Bandwidth | 250 MHz - enables stable +1-V/V video follower operation with minimal phase lag up to NTSC/PAL frequencies. |
| Slew Rate | 150 V/µs - supports clean 2-V step response in <11 ns, critical for fast-settling ADC/DAC interface buffers. |
| Input Voltage Noise | 6.5 nV/√Hz at 1 MHz - preserves SNR in low-level photodiode or sensor signal chains without added gain-stage noise. |
| Rail-to-Rail I/O | VCM = (V−) − 0.1 V to (V+) + 0.1 V; VOUT swing = within 100 mV of rails - maximizes dynamic range in single-supply 3.3-V or 5-V systems. |
| Shutdown Quiescent Current | 3.4 µA per amplifier - extends battery life in portable medical or barcode scanner devices during idle intervals. |
| Differential Gain/Phase | 0.02% / 0.09° at NTSC - meets broadcast-grade video fidelity requirements without external calibration. |
| Supply Range | 2.5 V to 5.5 V - interoperable with Li-ion, USB, and industrial 3.3-V/5-V rails without level-shifting circuitry. |
Pinout & Package
OPA357AIDBVR is housed in a 6-pin SOT-23 (DBV) package measuring 2.90 mm × 1.60 mm, optimized for space-constrained PCB layouts in handheld and embedded systems.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Out (Pin 1) | Amplifier output | Class AB rail-to-rail driver capable of sourcing/sinking ±100 mA; high-impedance when disabled. |
| V− (Pin 2) | Negative supply | Reference for all input thresholds and enable logic; supports single-supply operation down to 2.5 V total rail span. |
| +In (Pin 3) | Noninverting input | High-impedance CMOS node (10¹³ Ω || 2 pF); accepts signals from (V−) − 0.1 V to (V+) + 0.1 V. |
| −In (Pin 4) | Inverting input | Matches +In in voltage range and impedance; used for precision closed-loop gain configuration. |
| Enable (Pin 5) | Power-down control | Schmitt-trigger input with 0.8 V low / 2 V high thresholds; drives amplifier into <6 µA shutdown state. |
| V+ (Pin 6) | Positive supply | Supplies internal bias and output stage; must be decoupled locally to maintain 250-MHz stability. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input stage | Complementary N/P-channel pair extends common-mode range beyond supplies by 100 mV-enables direct sensing of ground-referenced sensors in single-supply systems. |
| Thermal shutdown protection | Automatic disable at 160°C junction temperature with hysteresis; resumes operation below 140°C-prevents permanent damage during sustained overload or poor heatsinking. |
| Video-optimized distortion performance | Differential gain/phase error of 0.02%/0.09° meets NTSC broadcast standards-eliminates need for external passive compensation networks in RGB line drivers. |
| Fast enable/disable timing | 100 ns turn-on / 30 ns turn-off-supports time-division multiplexing of multiple OPA357AIDBVR outputs onto shared signal buses without crosstalk artifacts. |
| Low input bias current | 3 pA typical-minimizes voltage error in high-impedance photodiode transimpedance configurations where feedback resistors exceed 1 MΩ. |
Applications
| Video Processing | Ultrasound Front-End |
|---|---|
Use Scenario: Driving back-terminated 75-Ω coaxial cables for RGB or composite video signals in portable displays and medical imaging monitors. IC Role / Device Role / Timing Role: Single-supply video line driver with rail-to-rail output swing and 0.02% differential gain accuracy. Use Value: Eliminates AC-coupling capacitors and DC restoration circuits while maintaining broadcast-grade color fidelity and timing integrity. | Use Scenario: Amplifying weak, wideband echo signals from piezoelectric transducers in handheld ultrasound probes. IC Role / Device Role / Timing Role: Low-noise, high-slew-rate transimpedance amplifier with shutdown for power-gated receive channels. Use Value: 6.5 nV/√Hz noise floor and 150 V/µs slew rate preserve microsecond-scale pulse fidelity and contrast resolution in B-mode imaging. |
| Photodiode Transimpedance | ADC Input Buffer |
Use Scenario: Converting photocurrent from optical encoders or environmental light sensors into precise voltage signals. IC Role / Device Role / Timing Role: High-input-impedance, low-bias-current transimpedance amplifier with rail-to-rail output for 3.3-V ADC interfacing. Use Value: 3 pA input bias current prevents significant offset error across multi-MΩ feedback resistors used for picoampere-level current detection. | Use Scenario: Isolating and driving analog inputs of high-speed SAR or pipeline ADCs in data acquisition systems. IC Role / Device Role / Timing Role: Unity-gain stable buffer with 250-MHz bandwidth and 30 ns 0.1% settling time. Use Value: Maintains full-scale accuracy during rapid sampling transitions without droop or overshoot, supporting >1 MSPS conversion rates. |
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 |
|---|---|---|---|
| OPA355IDBVR | 200-MHz GBW, rail-to-rail output only (not input), no shutdown function, 3.5 mA IQ | Lacks enable control and rail-to-rail input-unsuitable for single-supply sensor interfaces requiring full input range. | Select OPA355IDBVR only if shutdown is unnecessary and input common-mode range beyond rails is not required. |
| LMH6629MA/NOPB | 1.5-GHz GBW, bipolar input, 2.3 nV/√Hz noise, no shutdown, 12.5 mA IQ, SOIC-8 package | Higher bandwidth and lower noise but consumes >2.5× more quiescent current and lacks rail-to-rail input capability. | Choose LMH6629MA/NOPB when ultra-low noise and >500-MHz small-signal response outweigh power and input-range constraints. |
Compared with OPA355IDBVR and LMH6629MA/NOPB, the OPA357AIDBVR uniquely combines 250-MHz bandwidth, true rail-to-rail I/O, integrated shutdown, and sub-5-mA quiescent current-making it optimal for space- and power-sensitive video and portable medical signal chains where input voltage range and power gating are essential.
Availability
OPA357AIDBVR is available at Aetrix Electronics and suitable for video processing, ultrasound front-end design, and photodiode transimpedance amplifier applications requiring stable component supply and extended temperature support.
Supply support for OPA357AIDBVR 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 OPA357AIDBVR belongs to TI's high-speed precision op amp product line, engineered specifically for demanding video, medical imaging, and optical networking applications where bandwidth, noise, and rail-to-rail operation are critical.
FAQ
What is the maximum operating supply voltage for the OPA357AIDBVR?
The OPA357AIDBVR has an absolute maximum supply voltage of 7.5 V (V+ to V−), but its recommended operating range is 2.5 V to 5.5 V. Operation above 5.5 V risks exceeding safe junction temperatures and may degrade long-term reliability. Designers should maintain supply within 2.5–5.5 V for guaranteed specifications across –40°C to +125°C.
Does the OPA357AIDBVR support true rail-to-rail input operation?
Yes, the OPA357AIDBVR supports true rail-to-rail input operation with a common-mode input voltage range extending 100 mV beyond both supply rails (V− − 0.1 V to V+ + 0.1 V). This is achieved via a complementary N-channel/P-channel input stage, enabling accurate amplification of ground- or rail-referenced signals in single-supply systems without level-shifting.
How does the Enable pin function on the OPA357AIDBVR?
The Enable pin on the OPA357AIDBVR is a Schmitt-trigger input referenced to V−, with logic-high threshold ≥2 V and logic-low threshold ≤0.8 V. When driven high, the amplifier operates normally (IQ ≈ 4.9 mA); when driven low, it enters shutdown mode (IQ < 6 µA). The pin must be actively driven-not left floating-and exhibits 100 ns turn-on and 30 ns turn-off times.
Can the OPA357AIDBVR drive a 75-Ω video load directly?
Yes, the OPA357AIDBVR is explicitly characterized for 75-Ω video loads, delivering 0.02% differential gain and 0.09° differential phase error under NTSC conditions. Its ±100 mA output drive capability and rail-to-rail output swing allow direct back-termination of coaxial video cables without external buffers or passive networks.
What thermal protection features does the OPA357AIDBVR include?
The OPA357AIDBVR integrates thermal shutdown that disables the amplifier when junction temperature reaches 160°C and re-enables operation once temperature falls below 140°C. This hysteresis prevents oscillation near trip point and protects against sustained overloads, PCB layout deficiencies, or ambient temperature excursions-ensuring robust operation in unventilated enclosures.
OPA357AIDBVR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SOT-23-6
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- Voltage Feedback
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 150V/µs
- Gain Bandwidth Product:
- 100 MHz
- -3db Bandwidth:
- 250 MHz
- Current - Input Bias:
- 3 pA
- Voltage - Input Offset:
- 2 mV
- Current - Supply:
- 4.9mA
- 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:
- SOT-23-6
OPA357AIDBVR FAQ
1.How can I place an order for OPA357AIDBVR through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA357AIDBVR 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 OPA357AIDBVR reliable?
The price and inventory of OPA357AIDBVR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA357AIDBVR is usually 5 days.
3.What payment methods are accepted for OPA357AIDBVR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA357AIDBVR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA357AIDBVR?
OPA357AIDBVR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA357AIDBVR 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 OPA357AIDBVR?
For technical support, including OPA357AIDBVR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA357AIDBVR requirements.
6.How does Aetrix verify that OPA357AIDBVR is sourced from the original manufacturer or authorized distributors?
All OPA357AIDBVR 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 OPA357AIDBVR meets industry standards.
7.What is the process for return or replacement of OPA357AIDBVR?
All OPA357AIDBVR units undergo pre-shipment inspection (PSI). If there is an issue with OPA357AIDBVR, 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 OPA357AIDBVR part is unused and in its original packaging.
Return procedure for OPA357AIDBVR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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