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Texas Instruments OPA357AIDBVTG4
- Part No.:
- OPA357AIDBVTG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SOT-23-6
- Datasheet:
-
OPA357AIDBVTG4.pdf
- Description:
- IC OPAMP VFB 1 CIRCUIT SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:3,076
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Product details
Overview
OPA357AIDBVTG4 from Texas Instruments is a single-channel, rail-to-rail input/output, 250-MHz unity-gain stable CMOS operational amplifier in SOT-23-6 package. It delivers 150 V/µs slew rate, 6.5 nV/√Hz input voltage noise, and >100 mA output drive while operating from 2.5 V to 5.5 V supply - optimized for high-fidelity video line driving, photodiode transimpedance amplification, and A/D converter input buffering.
For engineers reviewing the OPA357AIDBVTG4 datasheet, OPA357AIDBVTG4 pinout, OPA357AIDBVTG4 application, or OPA357AIDBVTG4 equivalent, key selection criteria include shutdown-enabled low-power operation (3.4 µA quiescent current in disable mode), 0.02% differential gain / 0.09° differential phase for NTSC video, and guaranteed rail-to-rail swing within 100 mV of supply rails at 1-kΩ load.
Technical Context
The OPA357AIDBVTG4 employs a complementary CMOS input stage enabling rail-to-rail common-mode input range extending 100 mV beyond both supply rails, paired with a Class AB output stage delivering ±100 mA continuous output current. Its voltage-feedback architecture achieves unity-gain stability with 250 MHz small-signal bandwidth and 100 MHz gain-bandwidth product.
Integrated thermal shutdown activates at 160°C junction temperature and resets at 140°C; the enable pin uses a Schmitt-trigger input with TTL-compatible thresholds (low ≤ 0.8 V, high ≥ 2 V referenced to V−) and 100 ns turn-on / 30 ns turn-off timing - supporting gated amplification and time-multiplexed output bus sharing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Unity-Gain Bandwidth | 250 MHz - supports stable +1-V/V buffer configurations for wideband signals up to 250 MHz without peaking or oscillation. |
| Slew Rate | 150 V/µs - enables clean 4-V step response in <11 ns with <0.1% settling error, critical for fast pulse and video signal fidelity. |
| Input Voltage Noise | 6.5 nV/√Hz at 1 MHz - preserves SNR in low-level analog front-ends such as photodiode transimpedance stages. |
| Rail-to-Rail I/O | Input CM range: (V−) −0.1 V to (V+) +0.1 V; Output swing: within 100 mV of rails at 1-kΩ load - maximizes dynamic range in single-supply systems. |
| Shutdown Quiescent Current | 3.4 µA per channel - reduces system power by >99.9% during idle periods, extending battery life in portable instrumentation. |
| Differential Gain/Phase | 0.02% / 0.09° at NTSC, 150-Ω load - meets broadcast-grade video performance requirements without external compensation. |
| Supply Range | 2.5 V to 5.5 V - compatible with Li-ion, USB, and industrial 3.3 V/5 V rails without level-shifting circuitry. |
Pinout & Package
SOT-23-6 package (2.90 mm × 1.60 mm body size), thermally enhanced for high-speed operation in space-constrained PCB layouts. Pin 1 identified by package marking dot.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Output | Amplifier output node; capable of ±100 mA continuous drive into resistive loads and high-impedance state when disabled. |
| 2 | V− | Negative supply terminal; accepts ground or negative rail; common reference for input common-mode and enable logic. |
| 3 | +IN | Noninverting input; part of complementary CMOS input pair enabling rail-to-rail input voltage range. |
| 4 | −IN | Inverting input; matched to +IN for precision closed-loop gain accuracy and low input offset drift. |
| 5 | Enable | Active-high digital control; TTL-compatible input with internal 100-kΩ pull-up to V+; drives amplifier into ultra-low-IQ state. |
| 6 | V+ | Positive supply terminal; supports 2.5–5.5 V operation; powers internal bias networks and output stage. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input stage | Complementary N/P-channel input pairs extend common-mode range 100 mV beyond both supply rails - eliminates level-shifting in single-supply sensor interfaces. |
| Thermal shutdown protection | Automatic disable at 160°C junction temperature with hysteresis; resumes operation at 140°C - prevents permanent damage during overload or poor heatsinking. |
| Fast enable/disable timing | 100 ns turn-on and 30 ns turn-off - enables precise gating of analog signals and time-division multiplexing onto shared output buses. |
| Video-optimized distortion performance | −75 dBc 2nd-harmonic and −83 dBc 3rd-harmonic distortion at 1 MHz, 2-VPP, 200-Ω load - maintains color fidelity and edge integrity in RGB and composite video paths. |
| High-output-current capability | ±100 mA continuous output drive - directly drives 75-Ω back-terminated video cables, laser diodes, and ADC input RC networks without external buffers. |
Applications
| Video Line Driver | Photodiode Transimpedance Amplifier |
|---|---|
|
Use Scenario: Driving 75-Ω coaxial cable for NTSC/PAL composite video or RGB graphics signals in embedded displays and medical imaging systems. IC Role / Device Role / Timing Role: Single-supply, back-terminated line driver with rail-to-rail output swing and 0.02%/0.09° differential gain/phase error. Use Value: Eliminates AC-coupling capacitors and DC restoration circuits while preserving broadcast-grade video fidelity over 40 MHz bandwidth. |
Use Scenario: Converting low-current photodiode outputs (nA–µA range) into robust voltage signals for optical sensing, spectrometry, or lidar receivers. IC Role / Device Role / Timing Role: Low-noise (6.5 nV/√Hz), high-gain transimpedance amplifier with 150 V/µs slew rate for fast light-pulse detection. Use Value: Enables sub-10 ns pulse response and high SNR in low-light conditions without compromising bandwidth or introducing significant input bias current error. |
| A/D Converter Input Buffer | Laser Diode Bias Control |
|
Use Scenario: Buffering high-impedance sensor outputs before sampling by SAR or pipeline ADCs in test equipment and data acquisition systems. IC Role / Device Role / Timing Role: Unity-gain stable, low-distortion voltage follower with 250 MHz bandwidth and 30 ns 0.1% settling time. Use Value: Prevents ADC aperture error and code-dependent nonlinearity by delivering full-scale steps with minimal overshoot and monotonic settling. |
Use Scenario: Precision current regulation for red/green/blue laser diodes in projection systems and fiber-optic transceivers. IC Role / Device Role / Timing Role: High-output-current (±100 mA), low-offset op amp configured as current source/sink with enable-controlled standby. Use Value: Provides fast laser modulation (ns-scale turn-on/off), thermal-safe bias control, and <1 µA shutdown leakage to prevent unintended lasing. |
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 |
|---|---|---|---|
| OPA354AIDBVR | No shutdown function; identical SOT-23-6 package, 250-MHz GBW, 150 V/µs slew rate, but fixed-enable operation. | Preferred where always-on operation is acceptable and board space prohibits adding external enable logic. | Select OPA354AIDBVR only if shutdown functionality is unnecessary and lower BOM count is prioritized over power gating. |
| OPA355AIDBVR | 200-MHz GBW, rail-to-rail output only (not input), 110 V/µs slew rate, same shutdown feature and 3.4 µA IQ in disable mode. | Better suited for cost-sensitive, moderate-bandwidth applications where input rail-to-rail is not required. | Choose OPA355AIDBVR when 200-MHz bandwidth suffices and input common-mode range beyond V− is not needed. |
Compared with OPA354AIDBVR and OPA355AIDBVR, the OPA357AIDBVTG4 uniquely combines full rail-to-rail input/output, 250-MHz unity-gain bandwidth, and sub-µA shutdown current - making it the only option among the three for battery-powered, wide-dynamic-range video or precision pulsed-signal conditioning.
Availability
OPA357AIDBVTG4 is available at Aetrix Electronics and suitable for video processing, photodiode transimpedance amplification, and high-speed A/D converter input buffering requiring stable component supply across industrial temperature ranges (–40°C to +125°C).
Supply support for OPA357AIDBVTG4 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 specializing in analog, embedded processing, and connectivity technologies, with decades of expertise in high-performance op amp design and manufacturing.
The OPA357AIDBVTG4 belongs to TI's OPAx357 family of high-speed, rail-to-rail CMOS op amps engineered specifically for video signal conditioning, optical networking, and precision high-frequency analog signal chains.
FAQ
What is the maximum operating supply voltage for the OPA357AIDBVTG4?
The OPA357AIDBVTG4 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 is not specified and risks parametric degradation or permanent damage. The device is fully characterized from 2.7 V to 5.5 V, with guaranteed performance including 250 MHz bandwidth and 150 V/µs slew rate within this range.
Does the OPA357AIDBVTG4 support true rail-to-rail input operation?
Yes, the OPA357AIDBVTG4 supports true rail-to-rail input: its common-mode input voltage range extends from (V−) −0.1 V to (V+) +0.1 V, enabled by a complementary N-channel/P-channel input stage. This allows direct interfacing with sensors or DACs operating at the supply rails without external level-shifting, and is confirmed across the full –40°C to +125°C temperature range.
How does the enable function behave during power-up?
The OPA357AIDBVTG4 enable pin defaults to high-impedance until externally driven; it must be actively pulled high (≥2 V) or low (≤0.8 V) relative to V− to ensure defined operation. During power-up, if left floating, the internal 100-kΩ pull-up to V+ may cause unpredictable startup behavior. TI recommends tying Enable to V+ via a 10-kΩ resistor or controlling it with a GPIO to guarantee reliable initialization.
Can the OPA357AIDBVTG4 drive a 75-Ω video load directly?
Yes - the OPA357AIDBVTG4 is explicitly characterized for 75-Ω back-terminated video loads, delivering 0.02% differential gain error and 0.09° differential phase error under NTSC conditions. Its ±100 mA output current and rail-to-rail swing allow direct connection to 75-Ω coax without external emitter/source followers or passive termination networks.
What is the thermal shutdown threshold for the OPA357AIDBVTG4?
The OPA357AIDBVTG4 activates thermal shutdown at a junction temperature of 160°C and automatically recovers when the junction cools to 140°C. This hysteresis prevents oscillatory shutdown/restart during transient overloads. The shutdown circuit is internal and independent of the enable pin - the amplifier remains disabled until thermal recovery completes, even if Enable remains asserted.
OPA357AIDBVTG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SOT-23-6
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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
OPA357AIDBVTG4 FAQ
1.How can I place an order for OPA357AIDBVTG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA357AIDBVTG4 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 OPA357AIDBVTG4 reliable?
The price and inventory of OPA357AIDBVTG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA357AIDBVTG4 is usually 5 days.
3.What payment methods are accepted for OPA357AIDBVTG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA357AIDBVTG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA357AIDBVTG4?
OPA357AIDBVTG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA357AIDBVTG4 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 OPA357AIDBVTG4?
For technical support, including OPA357AIDBVTG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA357AIDBVTG4 requirements.
6.How does Aetrix verify that OPA357AIDBVTG4 is sourced from the original manufacturer or authorized distributors?
All OPA357AIDBVTG4 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 OPA357AIDBVTG4 meets industry standards.
7.What is the process for return or replacement of OPA357AIDBVTG4?
All OPA357AIDBVTG4 units undergo pre-shipment inspection (PSI). If there is an issue with OPA357AIDBVTG4, 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 OPA357AIDBVTG4 part is unused and in its original packaging.
Return procedure for OPA357AIDBVTG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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