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Texas Instruments OPA2350EA/250G4
- Part No.:
- OPA2350EA/250G4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
OPA2350EA/250G4.pdf
- Description:
- IC CMOS 2 CIRCUIT 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,544
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Product details
Overview
OPA2350EA/250G4 from Texas Instruments is a dual, rail-to-rail input/output CMOS operational amplifier optimized for low-voltage, single-supply operation. It delivers 38 MHz gain-bandwidth, 22 V/µs slew rate, and 5 nV/√Hz input voltage noise, enabling high-fidelity signal conditioning in space-constrained analog front-ends-particularly for driving medium-speed ADCs and video line drivers.
For engineers reviewing the OPA2350EA/250G4 datasheet, OPA2350EA/250G4 pinout, OPA2350EA/250G4 application, or OPA2350EA/250G4 equivalent, key selection criteria include its rail-to-rail swing within 10 mV of supply rails at 10 kΩ load, 0.0006% THD+N at 1 kHz, and guaranteed operation from 2.7 V to 5.5 V across −40°C to 85°C.
Technical Context
The OPA2350EA/250G4 employs a complementary N/P-channel input stage enabling true rail-to-rail common-mode input range (−0.1 V to V+ + 0.1 V), with laser trimming minimizing offset discontinuity in the transition region. Its class AB output stage supports 600 Ω drive capability while maintaining <10 mV output swing from rails under light loads.
Unity-gain stable with 122 dB open-loop gain, it achieves 0.22 µs 0.1% settling time for 2-V steps and drives capacitive loads up to 100 pF without external compensation-critical for ADC buffer and active filter applications where phase margin and transient fidelity are design-critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-bandwidth product | 38 MHz - enables stable unity-gain operation and supports closed-loop bandwidths up to ~35 MHz in low-noise configurations |
| Slew rate | 22 V/µs - ensures distortion-free reproduction of fast 1–2 V step signals in data acquisition and video timing paths |
| Input voltage noise density | 5 nV/√Hz at 10 kHz - preserves SNR in precision sensor interfaces and audio preamplifier stages |
| THD+N | 0.0006% at 1 kHz, RL = 600 Ω, VO = 2.5 VPP - meets broadcast-grade video and high-resolution ADC driver requirements |
| Output swing from rail | ≤10 mV at 10 kΩ load - maximizes dynamic range in 3.3 V or 5 V single-supply systems without level-shifting circuitry |
| Supply voltage range | 2.7 V to 5.5 V - supports direct interfacing with modern microcontrollers and low-power FPGAs |
| Quiescent current per amplifier | 5.2 mA typical - balances speed and power efficiency for battery-powered instrumentation |
Pinout & Package
OPA2350EA/250G4 is packaged in an 8-pin MSOP (DGK) with body size 3.00 mm × 3.00 mm, optimized for high-density PCB layouts and thermal performance (RθJA = 169.2°C/W).
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | NC | No internal connection - must be left unconnected or tied to ground per layout best practices |
| 2 | Inverting input (Channel A) | Differential input node for first op-amp; accepts signals down to −0.1 V with rail-to-rail common-mode range |
| 3 | Noninverting input (Channel A) | Reference input for Channel A; matched bias current (<10 pA) minimizes offset error in high-Z sensor interfaces |
| 4 | V− | Negative supply terminal - supports single-supply operation when tied to ground or dual-supply operation at −2.75 V |
| 5 | NC | No internal connection - electrically isolated; avoid routing critical signals nearby |
| 6 | Output (Channel A) | Class AB buffered output capable of sourcing/sinking ±40 mA; swings to within 10 mV of V− or V+ under 10 kΩ load |
| 7 | V+ | Positive supply terminal - operates from 2.7 V to 5.5 V; requires local 0.01 µF ceramic bypass capacitor |
| 8 | NC | No internal connection - unused pad; may be used as thermal relief or ground tie in thermal management |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full-scale signal utilization in 3.3 V systems without clamping or level-shifting, increasing effective resolution by >1 LSB in 12-bit ADC interfaces |
| Low THD+N (0.0006%) | Meets NTSC/PAL video differential gain/phase specs (0.17%/0.17°) for 75 Ω cable drivers without post-compensation |
| High slew rate (22 V/µs) | Supports clean 100 kHz sine wave generation at 2 VPP into 600 Ω, eliminating slew-induced distortion in test equipment outputs |
| Laser-trimmed input offset | ±150 µV max at 25°C ensures minimal DC error in precision transimpedance amplifiers and current-sense feedback loops |
| Unity-gain stability | Eliminates need for external compensation components in gain-of-one configurations-reducing BOM count and board area |
Applications
| Cell Phone PA Control Loop | Driving A/D Converters |
|---|---|
Use Scenario: Closed-loop RF power amplifier output monitoring in GSM/UMTS handsets using directional coupler feedback. IC Role / Device Role / Timing Role: Precision DC-coupled difference amplifier conditioning detector voltage before ADC sampling. Use Value: Rail-to-rail input allows direct sensing of 0–3 V detector range; low 5 nV/√Hz noise prevents degradation of ENOB in 10-bit baseband converters. |
Use Scenario: Buffering analog inputs to medium-speed SAR ADCs such as ADS7861 in portable data loggers. IC Role / Device Role / Timing Role: High-speed, low-distortion unity-gain buffer isolating source impedance from ADC sample-and-hold capacitance. Use Value: 0.22 µs 0.1% settling ensures accurate sampling at 500 kSPS; 22 V/µs slew rate suppresses charge injection artifacts. |
| Video Processing | Active Filters |
Use Scenario: Driving 75 Ω coaxial video lines in HDMI receiver front-ends or composite video reconstruction circuits. IC Role / Device Role / Timing Role: Line driver with precise gain accuracy and minimal group delay variation across 0–10 MHz. Use Value: 0.17% differential gain and 0.17° differential phase meet SMPTE RP-168 broadcast standards without external tuning. |
Use Scenario: Implementing 4th-order low-pass anti-aliasing filters in industrial sensor signal chains. IC Role / Device Role / Timing Role: Dual-amplifier topology enabling cascaded biquad sections with matched AC response. Use Value: Identical specifications between channels ensure <0.01 dB gain matching and <0.1° phase skew across temperature. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2322AIDR | Higher GBW (20 MHz vs 38 MHz), lower noise (8.5 nV/√Hz), but only 10 V/µs slew rate and no guaranteed 600 Ω drive | Better suited for low-frequency precision instrumentation; insufficient for 100 kHz video or fast-settling ADC buffering | Select OPA2322AIDR only when ultra-low quiescent current (1.8 mA) outweighs speed and drive strength requirements |
| AD8642ARZ | Lower THD+N (0.0003%), wider supply range (2.7–36 V), but slower (12 MHz GBW, 5 V/µs slew) and higher input bias current (1 pA) | Preferred for high-voltage industrial sensors; unsuitable for high-speed video or fast-settling data acquisition | Choose AD8642ARZ when operating above 5.5 V or requiring sub-100 µV offset drift over temperature |
Compared with OPA2350EA/250G4, OPA2322AIDR trades bandwidth and drive capability for lower power, while AD8642ARZ sacrifices speed for wider supply tolerance and lower distortion-neither offers drop-in replacement due to differing slew rate, load drive, and settling behavior.
Availability
OPA2350EA/250G4 is available at Aetrix Electronics and suitable for video processing, data acquisition, cell phone PA control, and active filter design requiring stable component supply, consistent parametric performance, and long-term industrial availability.
Supply support for OPA2350EA/250G4 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 and embedded processing technologies, with decades of expertise in high-performance op-amps and precision signal chain solutions.
The OPA2350EA/250G4 belongs to TI's MicroAmplifier™ series, designed specifically for low-voltage, single-supply applications demanding rail-to-rail operation, high speed, and low noise-including ADC buffering, video line driving, and portable instrumentation.
FAQ
What is the maximum operating temperature range for the OPA2350EA/250G4?
The OPA2350EA/250G4 is specified from −40°C to +85°C for reliable operation, with extended functionality up to +150°C. This makes the OPA2350EA/250G4 suitable for automotive under-hood modules and industrial motor control environments where ambient temperatures exceed standard commercial limits.
Does the OPA2350EA/250G4 require external compensation for unity-gain stability?
No, the OPA2350EA/250G4 is internally compensated and unity-gain stable. It maintains phase margin >60° with 100 pF capacitive load in G = 1 configuration, eliminating the need for external compensation networks and simplifying layout in ADC buffer and follower applications.
Can the OPA2350EA/250G4 drive a 75 Ω video load directly?
Yes-the OPA2350EA/250G4 delivers 0.17% differential gain and 0.17° differential phase error into 75 Ω loads at NTSC frequencies, meeting broadcast video standards. Its 600 Ω drive capability and rail-to-rail output ensure full-swing 1 VPP video signals without clipping or distortion.
What is the input common-mode voltage range of the OPA2350EA/250G4?
The OPA2350EA/250G4 supports an input common-mode voltage range from −0.1 V to V+ + 0.1 V, extending 100 mV beyond both supply rails. This rail-to-rail input capability allows direct interfacing with sensors and DACs operating near ground or supply rails without level-shifting circuitry.
How does the OPA2350EA/250G4 handle capacitive loads in active filter designs?
The OPA2350EA/250G4 maintains stability driving up to 100 pF capacitive loads in unity-gain configuration. Its low-output-impedance class AB stage and optimized internal compensation prevent peaking or ringing in Sallen-Key and multiple-feedback active filter topologies commonly used in anti-aliasing and tone control circuits.
OPA2350EA/250G4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- MicroAmplifier™
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Amplifier Type:
- CMOS
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 22V/µs
- Gain Bandwidth Product:
- 38 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 0.5 pA
- Voltage - Input Offset:
- 150 µV
- Current - Supply:
- 5.2mA (x2 Channels)
- Current - Output / Channel:
- 40 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-VSSOP
OPA2350EA/250G4 FAQ
1.How can I place an order for OPA2350EA/250G4 through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA2350EA/250G4 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 OPA2350EA/250G4 reliable?
The price and inventory of OPA2350EA/250G4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA2350EA/250G4 is usually 5 days.
3.What payment methods are accepted for OPA2350EA/250G4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA2350EA/250G4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA2350EA/250G4?
OPA2350EA/250G4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA2350EA/250G4 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 OPA2350EA/250G4?
For technical support, including OPA2350EA/250G4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA2350EA/250G4 requirements.
6.How does Aetrix verify that OPA2350EA/250G4 is sourced from the original manufacturer or authorized distributors?
All OPA2350EA/250G4 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 OPA2350EA/250G4 meets industry standards.
7.What is the process for return or replacement of OPA2350EA/250G4?
All OPA2350EA/250G4 units undergo pre-shipment inspection (PSI). If there is an issue with OPA2350EA/250G4, 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 OPA2350EA/250G4 part is unused and in its original packaging.
Return procedure for OPA2350EA/250G4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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