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Texas Instruments OPA2353EA/2K5
- Part No.:
- OPA2353EA/2K5
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
OPA2353EA/2K5.pdf
- Description:
- IC CMOS 2 CIRCUIT 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:7,402
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Product details
Overview
OPA2353EA/2K5 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 to 5.5V). It delivers 44MHz gain-bandwidth, 22V/µs slew rate, 5nV/√Hz input voltage noise, ±10mV output swing to rails (RL = 10kΩ), and 0.0006% THD+N - making it ideal for driving medium-speed ADCs and video line drivers in space-constrained applications.
For engineers reviewing the OPA2353EA/2K5 datasheet, OPA2353EA/2K5 pinout, OPA2353EA/2K5 application, or OPA2353EA/2K5 equivalent, key selection criteria include rail-to-rail I/O performance at 2.7V supply, MSOP-8 thermal resistance (150°C/W), channel separation (>120dB @ 1kHz), unity-gain stability, and guaranteed –40°C to +85°C operation with 5.2mA per amplifier quiescent current.
Technical Context
The OPA2353EA/2K5 employs a complementary differential input stage enabling rail-to-rail common-mode range (–0.1V to V+ + 0.1V) and a class AB output stage delivering 10mV rail-to-rail swing under light load. Its 0.6µm CMOS process ensures low input bias current (±0.5pA typ) and high PSRR (150µV/V) at DC.
Designed for unity-gain stability, it maintains 100dB open-loop gain (AOL) over temperature and load, supports 75Ω video drive capability, and exhibits <0.5µs 0.01% settling time for 2V steps - critical for sampling A/D converter buffering and composite video signal conditioning.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-Bandwidth Product | 44MHz - enables stable closed-loop gain ≥10 at 4.4MHz, suitable for anti-aliasing filters and video bandwidth extension. |
| Slew Rate | 22V/µs - supports full-scale 2V step response in ≤0.22µs (0.1%), essential for fast-settling ADC driver stages. |
| Input Voltage Noise | 5nV/√Hz @ 100kHz - preserves SNR in precision signal chains, especially when driving 12-bit+ ADCs with >50kHz bandwidth. |
| Output Swing to Rail | 10mV @ RL = 10kΩ - maximizes dynamic range in 3.3V or 5V single-supply systems without headroom loss. |
| THD+N | 0.0006% @ 1kHz, RL = 600Ω - meets audio-grade distortion requirements for portable media and communication interfaces. |
| Quiescent Current | 5.2mA per amplifier - balances speed and power for battery-operated instrumentation where >20MHz BW is required. |
| Common-Mode Range | –0.1V to V+ + 0.1V - allows direct sensing of signals crossing ground in single-supply sensor front-ends. |
Pinout & Package
OPA2353EA/2K5 is packaged in an 8-pin MSOP (VSSOP-8, package drawing DGK), measuring 3.0mm × 3.0mm × 1.0mm with 0.65mm pitch. Thermal resistance θJA = 150°C/W enables reliable operation up to +85°C ambient in compact PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (NC) | No Connect | Internally unused; must be left floating or tied to GND per layout best practice - no routing or loading permitted. |
| 2 (V+) | Positive Supply | Accepts 2.7V–5.5V single supply; requires local 0.01µF ceramic bypass to minimize high-frequency PSRR degradation. |
| 3 (Out B) | Amplifier B Output | Class AB rail-to-rail source/sink capable of ±40mA; drives 75Ω video loads or 600Ω audio paths directly. |
| 4 (–In B) | Inverting Input B | Differential pair node with 10¹³Ω || 6.5pF impedance; input protection diodes clamp ±0.3V beyond rails. |
| 5 (+In B) | Non-Inverting Input B | Matches Pin 4 impedance and bias; rail-to-rail common-mode range enables ground-referenced sensor interfacing. |
| 6 (Out A) | Amplifier A Output | Electrically identical to Pin 3; independent output stage ensures <0.15µV/V channel separation up to 1MHz. |
| 7 (–In A) | Inverting Input A | Same electrical specs as Pin 4; dual-channel independence eliminates crosstalk in multi-channel data acquisition. |
| 8 (+In A) | Non-Inverting Input A | Matches Pin 5; complementary input stage transitions smoothly across rail boundaries without phase inversion. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full-scale signal utilization in 2.7V–5.5V systems - e.g., 0–3.3V ADC input range without level-shifting circuitry. |
| 44MHz GBW with unity-gain stability | Supports wideband active filters (e.g., 10kHz low-pass with >60dB stopband attenuation) without external compensation. |
| 5nV/√Hz input voltage noise | Preserves resolution in 16-bit+ data acquisition when gain ≥10 is applied before ADC sampling. |
| 0.0006% THD+N at 1kHz | Meets broadcast-grade audio line driver specs (e.g., AES3 interface analog stages) without post-filtering. |
| MSOP-8 package (3×3mm) | Reduces board area by 60% vs SO-8 while maintaining same pinout compatibility - ideal for handheld medical and test equipment. |
Applications
| ADC Driver for Sampling Systems | Single-Supply Video Line Driver |
|---|---|
Use Scenario: Buffering and gain-setting stage preceding a 12-bit, 500kHz SAR ADC (e.g., ADS7861) in portable data loggers. IC Role / Device Role / Timing Role: High-speed, low-noise op-amp providing charge injection immunity and 0.22µs 0.1% settling to meet ADC aperture uncertainty requirements. Use Value: Eliminates need for external RC snubber networks; 44MHz GBW ensures <0.01LSB error from bandwidth-induced gain droop at Nyquist. | Use Scenario: Driving 75Ω coaxial video cable in composite NTSC/PAL signal paths within security cameras or portable monitors. IC Role / Device Role / Timing Role: G = 2 non-inverting amplifier with ac-coupled input biasing to handle sync-tip excursions below ground on single 5V supply. Use Value: 75Ω drive capability and 0.17% differential gain error preserve color fidelity; rail-to-rail output avoids clipping on 1.4Vpp video peaks. |
| Cell Phone PA Control Loop | Audio Signal Conditioning |
Use Scenario: Closed-loop feedback amplifier regulating RF power amplifier output in GSM/EDGE handset transceivers. IC Role / Device Role / Timing Role: High-speed comparator-like buffer converting DAC output to precise PA bias voltage with minimal latency. Use Value: 22V/µs slew rate ensures <100ns response to PA envelope variations; low THD+N prevents spectral regrowth in adjacent channels. | Use Scenario: Pre-amplifier and filter stage in Bluetooth headset analog front-end processing microphone and codec signals. IC Role / Device Role / Timing Role: Dual-channel op-amp implementing 2nd-order active low-pass (10kHz) and high-pass (100Hz) filtering with gain. Use Value: 5nV/√Hz noise floor maintains >90dB SNR in 20Hz–20kHz audio band; MSOP-8 footprint fits tight earpiece PCB real estate. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual rail-to-rail op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2353UA/2K5 | SO-8 package (θJA = 150°C/W), same electrical specs, larger footprint (4.9×6.0mm), higher thermal mass. | Better suited for prototyping and through-hole-compatible reflow; less optimal for ultra-dense portable PCBs. | Select when board assembly uses standard SOIC tooling or thermal cycling reliability outweighs size constraints. |
| TLV2462IDR | Lower GBW (6.4MHz), slower slew rate (1.6V/µs), higher input bias current (1pA max), but lower IQ (525µA per amp). | Targeted at cost-sensitive, lower-bandwidth sensor interfaces - not viable for ADC driving or video. | Choose only for sub-1MHz applications where power savings justify 7× bandwidth reduction and degraded settling. |
Compared with OPA2353UA/2K5, the OPA2353EA/2K5 saves >50% board area with identical performance; versus TLV2462IDR, it provides 6.9× higher bandwidth and 14× faster settling - critical for time-domain accuracy in sampling systems.
Availability
OPA2353EA/2K5 is available at Aetrix Electronics and suitable for cell phone PA control loops, video line drivers, ADC buffering, and portable audio signal conditioning requiring stable component supply across industrial and consumer production cycles.
Supply support for OPA2353EA/2K5 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 maintains its high-precision analog portfolio, emphasizing rail-to-rail, low-noise, and low-power op-amps for signal chain integrity.
The OPA2353EA/2K5 belongs to TI's MicroAmplifier™ series - designed specifically for miniature, single-supply applications demanding wide bandwidth, low distortion, and robust rail-to-rail operation in portable and space-constrained systems.
FAQ
What is the minimum operating supply voltage for the OPA2353EA/2K5?
The OPA2353EA/2K5 operates down to 2.5V, though all specifications are guaranteed from 2.7V to 5.5V. At 2.5V, parameters like GBW and slew rate decrease slightly, but rail-to-rail input/output functionality remains fully functional - verified across –40°C to +85°C. This makes OPA2353EA/2K5 suitable for Li-ion battery-powered devices nearing end-of-discharge.
Does the OPA2353EA/2K5 require external compensation for unity-gain stability?
No, the OPA2353EA/2K5 is internally compensated and unity-gain stable across all load conditions specified in the datasheet. No external capacitors or resistors are needed for stable operation at G = 1. However, for high-impedance feedback networks (>10kΩ), a small feedback capacitor (e.g., 0.5–2pF) may improve settling time by compensating layout parasitics - as documented in the OPA2353EA/2K5 application notes.
Can the OPA2353EA/2K5 drive a 75Ω video load directly?
Yes, the OPA2353EA/2K5 is explicitly characterized for 75Ω video drive capability, delivering <0.17% differential gain and phase error with NTSC signals. Its class AB output stage sources/sinks ±40mA, enabling direct connection to coaxial cable without external buffers - confirmed in Figure 6 of the OPA2353EA/2K5 datasheet for G = 2 single-supply configurations.
What is the thermal resistance (θJA) of the OPA2353EA/2K5 in its MSOP-8 package?
The OPA2353EA/2K5 in MSOP-8 (DGK) package has a junction-to-ambient thermal resistance of 150°C/W under standard JEDEC 2-layer board conditions. This value assumes proper copper pour and thermal vias beneath the exposed pad - critical for sustaining 5.2mA per amplifier quiescent current at +85°C ambient without exceeding 125°C junction temperature.
Is the OPA2353EA/2K5 RoHS compliant and lead-free?
Yes, the OPA2353EA/2K5 is RoHS compliant and lead-free, with "Green" (low-halogen) packaging and NIPDAUAG lead finish. It meets JEDEC MSL Level-2 moisture sensitivity classification and is rated for peak reflow temperatures up to 260°C - fully compatible with lead-free manufacturing processes as confirmed in TI's Package Option Addendum.
OPA2353EA/2K5 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/2K5 FAQ
1.How can I place an order for OPA2353EA/2K5 through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA2353EA/2K5 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/2K5 reliable?
The price and inventory of OPA2353EA/2K5 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA2353EA/2K5 is usually 5 days.
3.What payment methods are accepted for OPA2353EA/2K5?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA2353EA/2K5 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA2353EA/2K5?
OPA2353EA/2K5 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA2353EA/2K5 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/2K5?
For technical support, including OPA2353EA/2K5 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA2353EA/2K5 requirements.
6.How does Aetrix verify that OPA2353EA/2K5 is sourced from the original manufacturer or authorized distributors?
All OPA2353EA/2K5 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/2K5 meets industry standards.
7.What is the process for return or replacement of OPA2353EA/2K5?
All OPA2353EA/2K5 units undergo pre-shipment inspection (PSI). If there is an issue with OPA2353EA/2K5, 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/2K5 part is unused and in its original packaging.
Return procedure for OPA2353EA/2K5:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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