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Texas Instruments OPA2353EA/250
- Part No.:
- OPA2353EA/250
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
OPA2353EA/250.pdf
- Description:
- IC CMOS 2 CIRCUIT 8VSSOP
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
OPA2353EA/250 from Texas Instruments (formerly Burr-Brown) is a dual, rail-to-rail input/output CMOS operational amplifier optimized for low-voltage, single-supply operation (2.7V–5.5V). It delivers 44MHz gain-bandwidth, 22V/µs slew rate, and 5nV/√Hz input voltage noise-enabling high-fidelity signal conditioning in space-constrained applications such as A/D converter driving and video line buffering.
For engineers reviewing the OPA2353EA/250 datasheet, OPA2353EA/250 pinout, OPA2353EA/250 application, or OPA2353EA/250 equivalent, key selection criteria include rail-to-rail swing within 10mV of rails at 10kΩ load, ±40mA output drive capability, channel separation >120dB at 1kHz, and MSOP-8 package compatibility with high-density PCB layouts.
Technical Context
The OPA2353EA/250 employs a complementary N/P-channel input stage enabling rail-to-rail common-mode input range extending 100mV beyond supply rails, and a class AB output stage delivering rail-to-rail output swing. Its unity-gain stable architecture supports direct use in buffer, gain, and active filter configurations without external compensation.
Designed on a 0.6µm CMOS process, it features independent dual-amplifier circuitry minimizing crosstalk (<0.15µV/V dc channel separation), low quiescent current (5.2–9mA per amplifier), and robust capacitive load drive capability-verified stable with ≥100pF loads in unity-gain configuration.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-Bandwidth Product | 44MHz - enables stable closed-loop operation up to ~10MHz with G=10, suitable for medium-speed data acquisition front-ends. |
| Slew Rate | 22V/µs - supports clean 2V step response in ≤0.22µs (0.1% settling), critical for driving SAR ADC sample-and-hold inputs. |
| Input Voltage Noise Density | 5nV/√Hz at 100kHz - ensures minimal added noise in audio and precision sensor signal chains operating above 10kHz. |
| Output Voltage Swing | Within 10mV of rails (RL = 10kΩ) - maximizes dynamic range in 3.3V or 5V single-supply systems, e.g., portable instrumentation. |
| Common-Mode Rejection Ratio | 76–86dB (–0.1V < VCM < V+ – 2.4V) - maintains accuracy when amplifying small differential signals riding on noisy power rails. |
| Supply Voltage Range | 2.7V to 5.5V (guaranteed), down to 2.5V operational - compatible with Li-ion battery-powered devices and industrial 3.3V logic domains. |
| THD+N | 0.0006% at 1kHz, RL = 600Ω - meets high-fidelity audio and test equipment requirements where harmonic distortion must be below –104dB. |
Pinout & Package
OPA2353EA/250 is packaged in an 8-pin MSOP (VSSOP-8, package drawing DGK), measuring 3.0mm × 3.0mm × 1.0mm with 0.65mm pitch. This miniature surface-mount package supports high-density routing and thermal performance (θJA = 150°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | +In A | Non-inverting input of Amplifier A - accepts rail-to-rail common-mode signals from –0.1V to (V+) + 0.1V. |
| 2 | –In A | Inverting input of Amplifier A - forms feedback node in standard op-amp configurations; input bias current ≤10pA. |
| 3 | Out A | Amplifier A output - delivers ±40mA, swings within 10mV of V+ or V– under 10kΩ load. |
| 4 | V– | Negative supply terminal - connects to ground or negative rail; supports single-supply operation with V– = 0V. |
| 5 | V+ | Positive supply terminal - accepts 2.7V–5.5V; requires local 0.01µF ceramic bypass capacitor. |
| 6 | +In B | Non-inverting input of Amplifier B - electrically isolated from Amplifier A; identical rail-to-rail input range. |
| 7 | –In B | Inverting input of Amplifier B - independent bias path; dc channel separation ≥120dB prevents signal coupling. |
| 8 | Out B | Amplifier B output - fully independent output stage; no interaction with Out A even under overload conditions. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input | Common-mode range extends 100mV beyond V+ and V– - eliminates level-shifting circuits when interfacing with ADCs or sensors operating near supply rails. |
| Rail-to-rail output | Swing to within 10mV of V+ or V– at 10kΩ - preserves full signal amplitude in low-voltage systems, increasing effective resolution by up to 1 LSB. |
| High-speed, low-noise | 44MHz GBW + 5nV/√Hz noise - enables wideband signal conditioning (e.g., video, ultrasound) without cascading multiple stages. |
| Unity-gain stable | No external compensation required - simplifies layout and reduces BOM count in buffer, follower, and gain-of-1 applications. |
| Low THD+N | 0.0006% at 1kHz - ensures spectral purity in audio line drivers and communication channel conditioning where harmonic artifacts degrade SNR. |
| MSOP-8 packaging | 3.0mm × 3.0mm footprint - saves >50% board area vs SO-8 while maintaining thermal performance (θJA = 150°C/W) for compact portable designs. |
Applications
| Cell Phone PA Control Loop | ADC Driver for Data Acquisition |
|---|---|
Use Scenario: Closed-loop control of power amplifier output power in GSM/UMTS handset transceivers using analog feedback. IC Role / Device Role / Timing Role: High-speed error amplifier comparing detected RF envelope to reference, generating correction voltage for PA bias control. Use Value: 22V/µs slew rate ensures fast loop response to burst-mode transmission; rail-to-rail I/O accommodates 2.8V Li-ion supply without level shifters. |
Use Scenario: Buffering and gain-setting for 12-bit, 500kHz sampling ADCs (e.g., ADS7861) in portable test equipment. IC Role / Device Role / Timing Role: Drives ADC input capacitance while rejecting charge injection kickback; settles to 0.1% in 0.22µs after 2V step. Use Value: 44MHz bandwidth and low 5nV/√Hz noise preserve SNR >70dB; dual configuration allows simultaneous channel buffering. |
| Composite Video Line Driver | Audio Signal Conditioning |
Use Scenario: Single-supply 75Ω video line driver for NTSC/PAL signals in security cameras or portable media players. IC Role / Device Role / Timing Role: G = 2 non-inverting amplifier with ac-coupled input and dc-bias network to handle sync-tip excursions below ground. Use Value: 75Ω drive capability and 0.17% differential gain/phase error ensure broadcast-grade video fidelity; rail-to-rail output handles 1.4Vpp NTSC swing. |
Use Scenario: Low-distortion preamplifier and active filter stage in battery-powered headphone amplifiers or audio codecs. IC Role / Device Role / Timing Role: High-fidelity gain block and anti-aliasing filter driver with minimal added noise and harmonic content. Use Value: 0.0006% THD+N at 1kHz and 5nV/√Hz noise maintain >100dB dynamic range; MSOP-8 enables compact stereo channel layout. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual rail-to-rail operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2350EA/250 | Lower 1.5MHz GBW, 2.5V/µs slew rate, but lower 1.8nV/√Hz noise and 0.00008% THD+N at 1kHz. | Better suited for ultra-low-noise audio preamps where speed < 2MHz suffices; not viable for >100kHz video or fast ADC driving. | Select OPA2350EA/250 only when noise and distortion dominate over bandwidth requirements; avoid for >500kHz signal paths. |
| AD8662ARZ | 16MHz GBW, 12V/µs slew rate, 5.5nV/√Hz noise, and wider –40°C to +125°C temp range. | Targeted at industrial temperature-grade applications requiring extended reliability; lacks 75Ω video drive validation. | Choose AD8662ARZ for automotive or industrial control where extended temperature operation is mandatory; verify video performance separately. |
Compared with OPA2353EA/250, OPA2350EA/250 trades bandwidth for lower noise and distortion-ideal for precision audio-but cannot support fast ADC or video timing. AD8662ARZ offers broader temperature tolerance and proven industrial reliability, yet requires additional validation for video line driving due to uncharacterized 75Ω load behavior.
Availability
OPA2353EA/250 is available at Aetrix Electronics and suitable for cell phone PA control loops, ADC driver circuits, composite video line driving, and portable audio signal conditioning requiring stable component supply across production volumes.
Supply support for OPA2353EA/250 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 acquired Burr-Brown in 2000 and continues its legacy of precision analog ICs, emphasizing high-performance, low-power, and miniaturized solutions for signal chain applications.
The OPA2353EA/250 belongs to TI's MicroAmplifier™ series, designed specifically for low-cost, miniature, single-supply systems demanding rail-to-rail operation, high speed, and low noise-targeting portable communications, medical sensors, and consumer video.
FAQ
What is the maximum operating supply voltage for the OPA2353EA/250?
The OPA2353EA/250 is fully specified from 2.7V to 5.5V, with absolute maximum ratings allowing continuous operation up to 5.5V. It remains functional down to 2.5V, though some parameters like open-loop gain may degrade slightly below 2.7V. Always observe the 0.3V input overvoltage limit relative to V+ and V– rails.
Can the OPA2353EA/250 drive a 75Ω video load directly?
Yes-the OPA2353EA/250 is explicitly characterized for 75Ω video line driving in the datasheet (differential gain/phase error ≤0.17%). Its rail-to-rail output and 44MHz bandwidth support NTSC/PAL composite video signals; use ac-coupling and proper dc biasing (e.g., ~2.5V midpoint) to handle sync-tip excursions.
Does the OPA2353EA/250 require external compensation for unity-gain stability?
No-the OPA2353EA/250 is internally compensated and unity-gain stable. It does not require external capacitors or resistors for stability in G = 1 configurations. However, for high-impedance feedback networks (>10kΩ), a small feedback capacitor (e.g., 0.5–2pF) may improve settling time by compensating parasitic capacitance.
What is the thermal resistance (θJA) of the OPA2353EA/250 in its MSOP-8 package?
The OPA2353EA/250 in the MSOP-8 (VSSOP-8) package has a junction-to-ambient thermal resistance (θJA) of 150°C/W, as confirmed in the official TI datasheet. This value assumes standard JEDEC 2-layer board conditions; adding copper pour or thermal vias can reduce effective θJA in production layouts.
How does channel separation perform in the OPA2353EA/250 at high frequencies?
The OPA2353EA/250 achieves >120dB dc channel separation and maintains >90dB up to 100kHz, dropping to ~70dB at 10MHz. This high isolation prevents crosstalk between amplifiers in dual-channel applications such as stereo audio buffering or differential sensor signal conditioning.
OPA2353EA/250 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:
- Active
- Amplifier Type:
- CMOS
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 22V/µs
- Gain Bandwidth Product:
- 44 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 0.5 pA
- Voltage - Input Offset:
- 3 mV
- Current - Supply:
- 5.2mA (x2 Channels)
- Current - Output / Channel:
- 40 mA
- Voltage - Supply Span (Min):
- 2.5 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
OPA2353EA/250 FAQ
1.How can I place an order for OPA2353EA/250 through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA2353EA/250 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 OPA2353EA/250 reliable?
The price and inventory of OPA2353EA/250 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA2353EA/250 is usually 5 days.
3.What payment methods are accepted for OPA2353EA/250?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA2353EA/250 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA2353EA/250?
OPA2353EA/250 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA2353EA/250 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 OPA2353EA/250?
For technical support, including OPA2353EA/250 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA2353EA/250 requirements.
6.How does Aetrix verify that OPA2353EA/250 is sourced from the original manufacturer or authorized distributors?
All OPA2353EA/250 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 OPA2353EA/250 meets industry standards.
7.What is the process for return or replacement of OPA2353EA/250?
All OPA2353EA/250 units undergo pre-shipment inspection (PSI). If there is an issue with OPA2353EA/250, 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 OPA2353EA/250 part is unused and in its original packaging.
Return procedure for OPA2353EA/250:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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