My Inquiry
My Account
Texas Instruments OPA357AIDBVT
- Part No.:
- OPA357AIDBVT
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SOT-23-6
- Datasheet:
-
OPA357AIDBVT.pdf
- Description:
- IC OPAMP VFB 1 CIRCUIT SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:1,551
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
OPA357AIDBVT 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, featuring 150 V/µs slew rate, 6.5 nV/√Hz input voltage noise, and shutdown capability with <6 µA quiescent current - optimized for high-fidelity video line driving and photodiode transimpedance amplification.
For engineers reviewing the OPA357AIDBVT datasheet, OPA357AIDBVT pinout, OPA357AIDBVT application, or OPA357AIDBVT equivalent, key selection criteria include its 100-MHz gain-bandwidth product, ±100 mA output drive into 75-Ω video loads, thermal shutdown protection at 160°C, and operation from 2.5 V to 5.5 V single supply - critical for portable ultrasound front-ends and optical networking bias control.
Technical Context
The OPA357AIDBVT implements a complementary rail-to-rail input stage (N- and P-channel parallel differential pairs) enabling common-mode range extension beyond rails by 100 mV, coupled with a Class AB rail-to-rail output stage delivering 100 mV from rails into 1 kΩ. Its voltage-feedback architecture supports unity-gain stability without external compensation.
Shutdown is controlled via a Schmitt-triggered Enable pin referenced to V−, with 100 ns turn-on and 30 ns turn-off times, placing the output in high-impedance state when disabled. The device integrates on-chip thermal shutdown (trip at 160°C, reset at 140°C) and features 2000-V HBM ESD rating per ANSI/ESDA/JEDEC JS-001.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Unity-Gain Bandwidth | 250 MHz - enables stable +1-V/V buffering of >100-MHz signals without peaking or oscillation |
| Slew Rate | 150 V/µs - supports full-scale 4-V step response in ≤27 ns, preserving fast transient fidelity |
| Input Voltage Noise | 6.5 nV/√Hz at 1 MHz - minimizes added noise in low-level photodiode or sensor signal chains |
| Output Drive | >±100 mA continuous - drives 75-Ω back-terminated video cables or laser diode bias networks directly |
| 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 3.3-V or 5-V systems |
| Shutdown IQ | <6 µA - reduces average power in battery-operated gated-amplifier or multiplexed-signal applications |
| Supply Range | 2.5 V to 5.5 V single supply - compatible with Li-ion, USB, and industrial 3.3-V/5-V rails without level-shifting |
Pinout & Package
SOT-23-6 package (2.90 mm × 1.60 mm body), thermally enhanced with exposed pad (DBV variant); pin 1 marked by dot, orientation per TI DBV drawing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - Out | Amplifier output | Class AB rail-to-rail driver capable of ±100 mA; high-Z when Enable = low |
| 2 - V− | Negative supply / ground reference | Reference for input common-mode and enable logic; supports single-supply operation down to 2.5 V |
| 3 - +In | Noninverting input | High-impedance CMOS node (10¹³ Ω || 2 pF); accepts signals up to V− −0.1 V and V+ +0.1 V |
| 4 - −In | Inverting input | Differential partner to +In; used in transimpedance or inverting gain configurations |
| 5 - Enable | Shutdown control input | Schmitt-triggered TTL-compatible input; low = disable (IQ <6 µA), high = active (IQ = 4.9 mA) |
| 6 - V+ | Positive supply | Accepts 2.5–5.5 V; internal bias generation ensures rail-to-rail performance across full range |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input stage | Complementary N/P-channel input pairs extend common-mode range 100 mV beyond supplies - eliminates level-shifting in single-supply sensor interfaces |
| Video-optimized performance | 0.02% differential gain / 0.09° differential phase error at NTSC frequencies - meets broadcast-grade analog video line driver requirements |
| Fast enable/disable timing | 100 ns turn-on / 30 ns turn-off - enables precise gating in time-of-flight or pulsed-laser systems without output glitches |
| Thermal shutdown protection | Auto-shutdown at 160°C junction temperature, auto-recovery at 140°C - prevents permanent damage during sustained overload or poor PCB heatsinking |
| Low input bias current | 3 pA typical - preserves accuracy in high-impedance photodiode or piezoelectric sensor front-ends |
Applications
| Video Processing | Photodiode Transimpedance Amplifiers |
|---|---|
Use Scenario: Driving 75-Ω coaxial cable for composite or RGB video signals in medical imaging displays and industrial vision systems. IC Role / Device Role / Timing Role: Single-supply, rail-to-rail output buffer with back-termination support and 0.1-dB gain flatness to 40 MHz. Use Value: Eliminates external AC-coupling capacitors and level shifters while maintaining NTSC-compliant differential gain/phase (<0.02%/0.09°). | Use Scenario: Converting nanoampere-level photocurrent from silicon photodiodes into measurable voltage in pulse oximetry or spectrophotometry. IC Role / Device Role / Timing Role: Low-noise (6.5 nV/√Hz), low-input-bias (3 pA) transimpedance amplifier with wide bandwidth for fast light-pulse detection. Use Value: Enables sub-10-ns pulse response and high SNR without compromising stability due to 250-MHz unity-gain bandwidth. |
| Ultrasound Front-Ends | Laser Diode Bias Control |
Use Scenario: Amplifying weak echo signals from piezoelectric transducers in portable handheld ultrasound probes. IC Role / Device Role / Timing Role: High-speed, low-noise preamplifier with shutdown for power-gating between transmit/receive cycles. Use Value: Reduces average system power via 30-ns disable time and <6 µA shutdown current, extending battery life without sacrificing receive-bandwidth. | Use Scenario: Providing precision, low-noise bias current to tunable lasers in optical transceivers and DWDM modules. IC Role / Device Role / Timing Role: Current-source configured amplifier with ±100 mA output drive and rail-to-rail compliance for 0–5 V laser anode/cathode control. Use Value: Delivers stable bias under varying temperature and load conditions while supporting fast modulation via enable pin gating. |
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 |
|---|---|---|---|
| OPA355IDBVT | 200-MHz GBW, same SOT-23-6 package, rail-to-rail output only (not input), no thermal shutdown | Lacks rail-to-rail input and thermal protection - unsuitable for wide common-mode sensor interfaces or high-power-density layouts | Select OPA355IDBVT only if 200-MHz bandwidth suffices and input rail-to-rail is not required |
| LMH6629MA/NOPB | 1.5-GHz GBW, 900-V/µs slew rate, SOIC-8, no shutdown, higher IQ (12.5 mA) | Higher speed but larger package and no enable function - better for fixed-gain RF IF stages than portable gated systems | Choose LMH6629MA/NOPB when >1-GHz closed-loop bandwidth is mandatory and board space allows SOIC-8 |
Compared with OPA355IDBVT and LMH6629MA/NOPB, the OPA357AIDBVT uniquely balances 250-MHz bandwidth, rail-to-rail I/O, integrated shutdown, and SOT-23-6 footprint - making it optimal for space-constrained, battery-aware, wide-dynamic-range analog signal paths.
Availability
OPA357AIDBVT is available at Aetrix Electronics and suitable for video processing, ultrasound front-ends, photodiode transimpedance amplification, and laser diode bias control requiring stable component supply across industrial, medical, and test equipment programs.
Supply support for OPA357AIDBVT 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 designing analog ICs, embedded processors, and digital signal solutions for industrial, automotive, and communications markets.
The OPA357AIDBVT belongs to TI's high-speed precision op amp product line, engineered specifically for wideband video, optical, and medical sensing applications demanding rail-to-rail operation, low noise, and robust thermal behavior.
FAQ
What is the maximum operating supply voltage for the OPA357AIDBVT?
The OPA357AIDBVT 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 single supply. Operation above 5.5 V risks exceeding safe junction temperature or violating electrical specifications - always refer to Section 6.1 Absolute Maximum Ratings in the SBOS235F datasheet for derating guidance. The OPA357AIDBVT must never be operated continuously at 7.5 V.
Does the OPA357AIDBVT support true rail-to-rail input and output simultaneously?
Yes, the OPA357AIDBVT supports rail-to-rail input (common-mode range extends 100 mV beyond both rails) and rail-to-rail output (swing within 100 mV of V+ and V− into 1 kΩ). This dual rail-to-rail capability is confirmed in Sections 7.3.4 and 7.3.5 of the SBOS235F datasheet and enables full-scale signal handling in 3.3-V and 5-V systems without external level-shifting circuitry - a key advantage over many competing high-speed op amps.
How does the Enable pin function on the OPA357AIDBVT, and what happens to the output when disabled?
The Enable pin on the OPA357AIDBVT is a TTL-compatible Schmitt-trigger input referenced to V−: logic high (>2 V) enables normal operation (IQ ≈ 4.9 mA), logic low (<0.8 V) disables the amplifier (IQ < 6 µA). When disabled, the output enters a high-impedance state - verified in Figure 5 (Enable/Disable Response) and Section 7.3.3. This allows safe multiplexing onto shared buses without loading or contention, unlike op amps that clamp or short the output in shutdown.
Can the OPA357AIDBVT drive a 75-Ω video cable directly, and what layout considerations apply?
Yes, the OPA357AIDBVT can directly drive a 75-Ω back-terminated video cable - demonstrated in Figure 35 and specified by 0.02% differential gain / 0.09° differential phase error at NTSC frequencies. For reliable performance, use a series 75-Ω resistor at the amplifier output (not at the load end), minimize trace length before the resistor, and avoid stubs. Do not connect the OPA357AIDBVT output directly to unterminated 75-Ω loads, as capacitive reactance degrades stability and flatness.
What thermal protection features does the OPA357AIDBVT include, and how do they behave?
The OPA357AIDBVT integrates on-chip thermal shutdown that activates at 160°C junction temperature and resets automatically at 140°C. This protects against permanent damage during sustained overload, poor heatsinking, or ambient temperature excursions. Unlike simple current limiting, this feature fully disables the amplifier until safe temperature is restored - confirmed in Section 7.3.6 and Electrical Characteristics Table (Thermal Shutdown row). The OPA357AIDBVT resumes normal operation without external intervention once cooled.
OPA357AIDBVT 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
OPA357AIDBVT FAQ
1.How can I place an order for OPA357AIDBVT through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA357AIDBVT 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 OPA357AIDBVT reliable?
The price and inventory of OPA357AIDBVT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA357AIDBVT is usually 5 days.
3.What payment methods are accepted for OPA357AIDBVT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA357AIDBVT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA357AIDBVT?
OPA357AIDBVT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA357AIDBVT 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 OPA357AIDBVT?
For technical support, including OPA357AIDBVT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA357AIDBVT requirements.
6.How does Aetrix verify that OPA357AIDBVT is sourced from the original manufacturer or authorized distributors?
All OPA357AIDBVT 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 OPA357AIDBVT meets industry standards.
7.What is the process for return or replacement of OPA357AIDBVT?
All OPA357AIDBVT units undergo pre-shipment inspection (PSI). If there is an issue with OPA357AIDBVT, 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 OPA357AIDBVT part is unused and in its original packaging.
Return procedure for OPA357AIDBVT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
OPA357AIDBVT Tags
-
LM358DT
STMicroelectronics
-
LM358DR
Texas Instruments
-
LM2904DR
Texas Instruments
-
LM358ADR
Texas Instruments
-
LM2904DGKR
Texas Instruments
-
LM324DR
Texas Instruments
-
MCP6006T-E/OT
Microchip Technology
-
MCP6006UT-E/OT
Microchip Technology
-
LM324PWR
Texas Instruments
-
LM2902PWR
Texas Instruments
-
LM2902DR
Texas Instruments
-
LM358P
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
