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Texas Instruments OPA357AIDBVRG4
- Part No.:
- OPA357AIDBVRG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SOT-23-6
- Datasheet:
-
OPA357AIDBVRG4.pdf
- Description:
- IC OPAMP VFB 1 CIRCUIT SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:2,837
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Product details
Overview
OPA357AIDBVRG4 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 use in 40-MHz 0.1-dB gain-flat video line drivers and photodiode transimpedance amplifiers.
For engineers reviewing the OPA357AIDBVRG4 datasheet, OPA357AIDBVRG4 pinout, OPA357AIDBVRG4 application, or OPA357AIDBVRG4 equivalent, key selection criteria include shutdown-enabled power management (IQ < 6 µA), ±100 mA output drive into 75-Ω video loads, and operation from 2.5 V to 5.5 V single supply with thermal shutdown protection.
Technical Context
The OPA357AIDBVRG4 employs a complementary rail-to-rail input stage (N- and P-channel parallel pairs) extending common-mode range 100 mV beyond rails, and a Class AB rail-to-rail output stage delivering 100 mV from supply rails at 1-kΩ load. Its unity-gain stable architecture supports voltage-follower configurations without external compensation.
Shutdown is implemented via TTL-compatible Schmitt-trigger Enable pin with 100 ns turn-on and 30 ns turn-off times, forcing output into high-impedance state and reducing quiescent current to 3.4 µA. Thermal shutdown activates at 160°C junction temperature and resets at 140°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Unity-Gain Bandwidth | 250 MHz - enables stable +1-V/V follower operation for wideband signal buffering without peaking. |
| Slew Rate | 150 V/µs - supports distortion-free reproduction of fast 2-V step signals within 11 ns rise time (10%–90%). |
| Input Voltage Noise | 6.5 nV/√Hz at 1 MHz - preserves SNR in low-level sensor interfaces like photodiode transimpedance stages. |
| Rail-to-Rail I/O | VCM = (V−) −0.1 V to (V+) +0.1 V; VOUT swing = 0.1 V from rails - maximizes dynamic range in 2.5–5.5 V single-supply systems. |
| Shutdown IQ | < 6 µA - extends battery life in portable ultrasound or barcode scanner systems during idle periods. |
| Differential Gain/Phase | 0.02% / 0.09° at NTSC - meets broadcast video fidelity requirements for RGB or composite video line driving. |
| Output Current | ±100 mA continuous - drives back-terminated 75-Ω coaxial cables directly without external buffers. |
Pinout & Package
SOT-23-6 package (2.90 mm × 1.60 mm body size) with exposed pad for thermal enhancement; rated for −40°C to +125°C operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Out (Pin 1) | Amplifier output | Class AB rail-to-rail stage capable of ±100 mA drive; high-impedance when Enable = low. |
| V− (Pin 2) | Negative supply | Ground reference for single-supply operation; common return for bias and load currents. |
| +In (Pin 3) | Noninverting input | High-impedance CMOS node (10¹³ Ω || 2 pF); accepts signals up to (V−) −0.1 V and (V+) +0.1 V. |
| −In (Pin 4) | Inverting input | High-impedance CMOS node; used for feedback networks and transimpedance configurations. |
| Enable (Pin 5) | Shutdown control | TTL-compatible Schmitt trigger input; low = disabled (3.4 µA IQ), high = active (4.9 mA IQ). |
| V+ (Pin 6) | Positive supply | Accepts 2.5 V to 5.5 V; powers internal bias, input stage, and output driver. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input stage | Extends common-mode range 100 mV beyond supplies using parallel N/P-channel differential pairs, enabling direct interface with ADCs/DACs near rail voltages. |
| Video-optimized performance | 0.02% differential gain and 0.09° differential phase error at NTSC frequencies ensure broadcast-grade color fidelity in RGB or composite video drivers. |
| Fast enable/disable timing | 100 ns turn-on and 30 ns turn-off allow precise gating of video bursts or multiplexing onto shared signal buses without glitches. |
| Thermal shutdown protection | Automatically disables amplifier at 160°C junction temperature and restores operation at 140°C, preventing permanent damage during overload or poor heatsinking. |
| Low input bias current | 3 pA typical - minimizes offset drift and leakage errors in high-impedance photodiode or precision filter applications. |
Applications
| Video Processing | Ultrasound Imaging |
|---|---|
Use Scenario: Driving back-terminated 75-Ω coaxial cables in RGB graphic signal distribution. IC Role / Device Role / Timing Role: Single-supply video line driver with 0.1-dB gain flatness to 40 MHz and differential gain/phase error below broadcast thresholds. Use Value: Eliminates need for external AC-coupling capacitors and level-shifting circuitry while maintaining NTSC-compliant color accuracy. | Use Scenario: Amplifying low-amplitude, high-frequency echo signals from piezoelectric transducers. IC Role / Device Role / Timing Role: Low-noise, high-bandwidth transimpedance amplifier front-end with rail-to-rail output swing for ADC interfacing. Use Value: Preserves weak signal integrity with 6.5 nV/√Hz noise floor and supports >20-MHz bandwidth required for high-resolution B-mode imaging. |
| Photodiode Transimpedance | Optical Networking |
Use Scenario: Converting photocurrent from high-speed PIN diodes in fiber-optic receivers. IC Role / Device Role / Timing Role: Precision transimpedance amplifier with 3 pA input bias current and 250-MHz bandwidth for 1–10 Gbps data recovery. Use Value: Enables accurate low-light detection without DC offset drift, supporting high dynamic range in optical power monitoring. | Use Scenario: Biasing and modulating tunable laser diodes in DWDM transceivers. IC Role / Device Role / Timing Role: High-current, fast-settling laser diode driver with thermal shutdown and 150 V/µs slew rate for precise wavelength control. Use Value: Delivers stable 100-mA output with sub-30 ns disable time to prevent laser overshoot during channel switching. |
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 |
|---|---|---|---|
| OPA354AIDBVR | No shutdown function; 250-MHz GBW, same SOT-23-6 package, but 4.9 mA fixed IQ. | Preferred where always-on operation is acceptable and board space precludes adding external enable logic. | Select OPA354AIDBVR only if shutdown capability is unnecessary and lower standby power is not required. |
| OPA355AIDBVR | 200-MHz GBW, rail-to-rail output only (not input), 3.4 µA shutdown IQ, same package. | Better suited for cost-sensitive, lower-bandwidth video or DAC output buffering where input rail-to-rail is not critical. | Choose OPA355AIDBVR when 200-MHz bandwidth suffices and input common-mode range beyond rails is not needed. |
Compared with OPA354AIDBVR and OPA355AIDBVR, the OPA357AIDBVRG4 uniquely combines full rail-to-rail input/output, 250-MHz bandwidth, and sub-6-µA shutdown current-making it optimal for battery-powered, high-fidelity video and optical sensing where dynamic power control and maximum signal swing are essential.
Availability
OPA357AIDBVRG4 is available at Aetrix Electronics and suitable for video processing, ultrasound imaging, photodiode transimpedance amplification, and optical networking applications requiring stable component supply across industrial temperature ranges.
Supply support for OPA357AIDBVRG4 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 high-performance op amps, data converters, and power management ICs.
The OPA357AIDBVRG4 belongs to TI's precision high-speed op amp product line, designed specifically for demanding video, medical imaging, and optical communication systems requiring wide bandwidth, low noise, and rail-to-rail operation.
FAQ
What is the operating supply voltage range for the OPA357AIDBVRG4?
The OPA357AIDBVRG4 operates from a single supply of 2.5 V to 5.5 V, or dual supplies of ±1.25 V to ±2.75 V. Absolute maximum supply voltage is 7.5 V (V+ to V−). Operation below 2.5 V is not specified and may result in degraded bandwidth, slew rate, or output swing. The device maintains rail-to-rail I/O functionality across this full range, with common-mode input extending 100 mV beyond the rails.
Does the OPA357AIDBVRG4 support rail-to-rail input and output simultaneously?
Yes, the OPA357AIDBVRG4 supports true rail-to-rail input and output concurrently. Its complementary input stage allows common-mode voltage from (V−) −0.1 V to (V+) +0.1 V, and its Class AB output stage delivers swing within 100 mV of both rails under 1-kΩ load. This enables full dynamic range utilization in single-supply systems such as portable video equipment and battery-powered sensors, where maximizing signal headroom is critical.
How does the Enable pin function on the OPA357AIDBVRG4?
The Enable pin (Pin 5) on the OPA357AIDBVRG4 is a TTL-compatible Schmitt-trigger input that controls amplifier power state. A logic high (≥2 V referenced to V−) enables normal operation with 4.9 mA quiescent current; a logic low (≤0.8 V) disables the amplifier, reducing IQ to 3.4 µA and placing the output in high-impedance state. Turn-on time is 100 ns and turn-off time is 30 ns, supporting precise gating in time-critical applications like burst-mode ultrasound or video blanking.
What video performance metrics does the OPA357AIDBVRG4 achieve?
The OPA357AIDBVRG4 achieves NTSC-compliant video performance: 0.02% differential gain error and 0.09° differential phase error into 150-Ω load, with 0.1-dB gain flatness to 40 MHz. These metrics are measured under standard video conditions and confirm suitability for RGB cable drivers, composite video line drivers, and broadcast-quality signal distribution where color fidelity and timing accuracy are essential.
Can the OPA357AIDBVRG4 drive 75-Ω video cables directly?
Yes, the OPA357AIDBVRG4 can drive 75-Ω video cables directly when configured in a back-terminated topology. Its ±100 mA continuous output current and rail-to-rail output swing allow it to deliver full-swing video signals into 75-Ω loads without external buffers. TI's reference design (Figure 35) confirms stable operation with 75-Ω back-termination, eliminating reflections and preserving signal integrity up to 40 MHz without requiring additional AC-coupling or level-shifting components.
OPA357AIDBVRG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SOT-23-6
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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
OPA357AIDBVRG4 FAQ
1.How can I place an order for OPA357AIDBVRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA357AIDBVRG4 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 OPA357AIDBVRG4 reliable?
The price and inventory of OPA357AIDBVRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA357AIDBVRG4 is usually 5 days.
3.What payment methods are accepted for OPA357AIDBVRG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA357AIDBVRG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA357AIDBVRG4?
OPA357AIDBVRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA357AIDBVRG4 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 OPA357AIDBVRG4?
For technical support, including OPA357AIDBVRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA357AIDBVRG4 requirements.
6.How does Aetrix verify that OPA357AIDBVRG4 is sourced from the original manufacturer or authorized distributors?
All OPA357AIDBVRG4 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 OPA357AIDBVRG4 meets industry standards.
7.What is the process for return or replacement of OPA357AIDBVRG4?
All OPA357AIDBVRG4 units undergo pre-shipment inspection (PSI). If there is an issue with OPA357AIDBVRG4, 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 OPA357AIDBVRG4 part is unused and in its original packaging.
Return procedure for OPA357AIDBVRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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