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Texas Instruments OPA2353EA/2K5G4
- Part No.:
- OPA2353EA/2K5G4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
OPA2353EA/2K5G4.pdf
- Description:
- IC CMOS 2 CIRCUIT 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,137
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Product details
Overview
OPA2353EA/2K5G4 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, 5nV/√Hz input voltage noise, and ±40mA output drive - enabling high-fidelity signal conditioning in space-constrained analog front-ends such as ADC drivers and video line drivers.
For engineers reviewing the OPA2353EA/2K5G4 datasheet, OPA2353EA/2K5G4 pinout, OPA2353EA/2K5G4 application, or OPA2353EA/2K5G4 equivalent, key selection criteria include rail-to-rail swing within 10mV of rails at 10kΩ load, channel separation >120dB at 1kHz, and guaranteed operation from –40°C to +85°C in MSOP-8 packaging.
Technical Context
The OPA2353EA/2K5G4 employs a complementary differential input stage (N- and P-channel pairs) enabling rail-to-rail common-mode input range extending 100mV beyond supply rails. Its class AB output stage supports rail-to-rail output swing with <10mV headroom into 10kΩ and maintains >100dB open-loop gain across full output swing.
Designed on a 0.6µm CMOS process, it achieves unity-gain stability while delivering low THD+N (0.0006% at 1kHz), 75Ω video drive capability, and independent dual-amplifier circuitry minimizing crosstalk - critical for precision dual-path signal chains in data acquisition and communications systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-Bandwidth Product | 44MHz - enables stable G=10 closed-loop operation up to ~4.4MHz without phase margin degradation. |
| Slew Rate | 22V/µs - supports clean 2V-step settling in ≤0.22µs (0.1%) for high-speed sampling interfaces. |
| Input Voltage Noise Density | 5nV/√Hz at 100kHz - ensures minimal added noise in wideband sensor amplification and audio preamp stages. |
| Output Swing (10kΩ) | Within 10mV of V+ and V− rails - maximizes dynamic range in 3.3V or 5V single-supply systems. |
| Input Common-Mode Range | –0.1V to (V+) + 0.1V - allows direct interfacing to signals exceeding supply rails by 100mV without external level-shifting. |
| Quiescent Current per Amp | 5.2mA typical at 5V - balances speed and power efficiency for battery-sensitive portable instrumentation. |
| THD+N | 0.0006% at 1kHz, RL=600Ω - meets high-fidelity requirements in audio and precision measurement paths. |
Pinout & Package
OPA2353EA/2K5G4 is packaged in an 8-pin MSOP (VSSOP-8, package drawing DGK), measuring 3.0mm × 3.0mm × 1.0mm with 0.65mm lead pitch. Thermal resistance θJA = 150°C/W enables reliable operation at full rated output current in compact PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (NC) | No Connect | Internally unused; must be left floating or tied to ground per layout best practice. |
| 2 (V+) | Positive Supply | Accepts 2.7V–5.5V single supply; bypass with 0.01µF ceramic capacitor near pin. |
| 3 (Out B) | Amplifier B Output | Delivers rail-to-rail output swing; capable of ±40mA into resistive loads. |
| 4 (–In B) | Inverting Input B | Differential input node for Channel B; input bias current <10pA enables high-Z sensor interfaces. |
| 5 (+In B) | Non-Inverting Input B | Complementary input to Pin 4; common-mode range extends beyond supply rails. |
| 6 (Out A) | Amplifier A Output | Independent output with identical specs to Pin 3; no crosstalk coupling to Channel B. |
| 7 (–In A) | Inverting Input A | High-impedance input for Channel A; matched to Pin 4 for precision differential configurations. |
| 8 (V–) | Negative Supply / Ground | Reference for single-supply operation; connects to system ground or negative rail. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input | Common-mode range from –0.1V to (V+) + 0.1V enables direct connection to unbuffered DAC outputs or transducer signals near supply rails. |
| Rail-to-rail output | Swings to within 10mV of V+ and V− with 10kΩ load - preserves >99.6% of available voltage range in 3.3V systems. |
| 44MHz bandwidth | Supports G=2 closed-loop gain up to 22MHz - sufficient for driving 12-bit, 500kHz SAR ADCs with minimal settling error. |
| Low 5nV/√Hz noise | Minimizes contribution to total system noise floor in low-level signal paths like microphone preamps or strain gauge bridges. |
| 75Ω video drive | Stable into 75Ω loads with <0.2% differential gain/phase error - suitable for composite video line driving without external buffers. |
| Unity-gain stable | Operates reliably at G=1 without external compensation - simplifies design of active filters, I/V converters, and buffer stages. |
Applications
| ADC Driver | Video Line Driver |
|---|---|
Use Scenario: Driving the analog input of a 12-bit, 500kHz sampling ADC (e.g., ADS7861) in a portable data logger. IC Role / Device Role / Timing Role: Buffering and gain-setting amplifier that isolates ADC input capacitance and absorbs charge injection kickback. Use Value: 0.22µs 0.1% settling time and rail-to-rail swing ensure full-scale accuracy without dead time between conversions. |
Use Scenario: Single-supply composite video line driver for security camera output feeding 75Ω coaxial cable. IC Role / Device Role / Timing Role: G=2 non-inverting amplifier with ac-coupled input and dc bias shift to handle sync-tip excursions below ground. Use Value: 0.17% differential gain/phase error and 75Ω drive capability maintain NTSC/PAL color fidelity without external termination. |
| Cell Phone PA Control | Audio Preamp |
Use Scenario: Closed-loop power amplifier (PA) envelope control in GSM/EDGE handset RF front-end. IC Role / Device Role / Timing Role: High-speed error amplifier comparing detected RF output to baseband envelope reference. Use Value: 22V/µs slew rate and 44MHz bandwidth enable accurate tracking of fast PA modulation envelopes up to 200kHz. |
Use Scenario: Low-noise microphone preamplifier stage in voice-controlled IoT device with 3.3V supply. IC Role / Device Role / Timing Role: First-stage gain block with adjustable gain and high input impedance for electret condenser mic biasing. Use Value: 5nV/√Hz input noise and 0.0006% THD+N preserve SNR and harmonic integrity in 20Hz–20kHz audio band. |
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 |
|---|---|---|---|
| OPA2350EA/250 | Lower 3.8MHz GBW, 1.5V/µs slew rate; same MSOP-8 package and rail-to-rail I/O. | Better suited for low-power, low-frequency precision applications (e.g., sensor signal conditioning) where speed is secondary. | Select when quiescent current <1.5mA is required and bandwidth <4MHz suffices. |
| ADA4891-2ARZ | Higher 225MHz GBW and 170V/µs slew rate; SO-8 only; higher 4.4mA IQ per amp. | Targeted at high-speed imaging and video reconstruction where >100MHz small-signal bandwidth is needed. | Select when driving high-resolution video DACs or multi-MSPS ADCs requiring sub-10ns settling. |
Compared with OPA2353EA/2K5G4, OPA2350EA/250 trades bandwidth for lower power, while ADA4891-2ARZ provides significantly higher speed at increased supply current - making OPA2353EA/2K5G4 the optimal balance of speed, noise, and efficiency for mid-bandwidth precision analog interfaces.
Availability
OPA2353EA/2K5G4 is available at Aetrix Electronics and suitable for data acquisition systems, video processing modules, and portable instrumentation requiring stable component supply with RoHS-compliant, green packaging and guaranteed -40°C to +85°C operation.
Supply support for OPA2353EA/2K5G4 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 legacy of high-performance analog ICs. TI is a global leader in analog semiconductors, with broad portfolio spanning precision amplifiers, data converters, and interface solutions.
The OPA2353EA/2K5G4 belongs to TI's MicroAmplifier™ series - designed specifically for miniature, low-voltage, single-supply applications demanding rail-to-rail performance, low noise, and high speed in space-constrained systems.
FAQ
What is the operating voltage range for OPA2353EA/2K5G4?
The OPA2353EA/2K5G4 operates from a single supply of 2.7V to 5.5V, with functionality guaranteed over this range. It can tolerate down to 2.5V supply voltage, though some parameters may fall outside specified limits below 2.7V. The device supports rail-to-rail input and output swing across the full 2.7V–5.5V range, making OPA2353EA/2K5G4 ideal for 3.3V and 5V systems without level-shifting circuitry.
Does OPA2353EA/2K5G4 require external compensation for unity-gain stability?
No, the OPA2353EA/2K5G4 is internally compensated and unity-gain stable. It does not require external capacitors or feedback network adjustments to maintain stability at G=1. This simplifies implementation in buffer, active filter, and I/V converter configurations. However, for high-impedance feedback networks (>10kΩ), adding a small feedback capacitor (e.g., 0.5–2pF) across RF may improve settling time and reduce peaking, as documented in the OPA2353EA/2K5G4 application notes.
What is the thermal resistance (θJA) of the MSOP-8 package used by OPA2353EA/2K5G4?
The OPA2353EA/2K5G4 in MSOP-8 (DGK) package has a junction-to-ambient thermal resistance (θJA) of 150°C/W under standard JEDEC test conditions. This value assumes a two-layer PCB with 1in² copper pour under the exposed pad. For continuous ±40mA output current per amplifier at 5V supply, power dissipation reaches ~416mW, resulting in ~62°C junction rise above ambient - well within the 150°C maximum junction temperature limit. Proper board layout is essential to realize this θJA in production.
Can OPA2353EA/2K5G4 drive a 75Ω video load directly?
Yes, the OPA2353EA/2K5G4 is characterized for 75Ω video drive capability. At G=2, it delivers <0.17% differential gain error and <0.17° differential phase error with NTSC signals, meeting broadcast-grade video specifications. The output stage sustains rail-to-rail swing into 75Ω loads, and the device remains stable without external isolation resistors. This makes OPA2353EA/2K5G4 suitable for composite video line drivers in single-supply CCTV and portable video equipment.
What is the input bias current specification for OPA2353EA/2K5G4?
The OPA2353EA/2K5G4 features ultra-low input bias current: ±0.5pA typical and ±10pA maximum at +25°C, with performance maintained across the full –40°C to +85°C temperature range. This enables high-impedance sensor interfaces (e.g., pH electrodes, photodiode transimpedance amps) without significant offset drift due to input current flow. The CMOS input stage ensures bias current remains stable over common-mode voltage and supply variations - a key advantage over bipolar-input op amps.
OPA2353EA/2K5G4 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:
- 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/2K5G4 FAQ
1.How can I place an order for OPA2353EA/2K5G4 through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA2353EA/2K5G4 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/2K5G4 reliable?
The price and inventory of OPA2353EA/2K5G4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA2353EA/2K5G4 is usually 5 days.
3.What payment methods are accepted for OPA2353EA/2K5G4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA2353EA/2K5G4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA2353EA/2K5G4?
OPA2353EA/2K5G4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA2353EA/2K5G4 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/2K5G4?
For technical support, including OPA2353EA/2K5G4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA2353EA/2K5G4 requirements.
6.How does Aetrix verify that OPA2353EA/2K5G4 is sourced from the original manufacturer or authorized distributors?
All OPA2353EA/2K5G4 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/2K5G4 meets industry standards.
7.What is the process for return or replacement of OPA2353EA/2K5G4?
All OPA2353EA/2K5G4 units undergo pre-shipment inspection (PSI). If there is an issue with OPA2353EA/2K5G4, 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/2K5G4 part is unused and in its original packaging.
Return procedure for OPA2353EA/2K5G4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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