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Texas Instruments OPA4353EA/2K5
- Part No.:
- OPA4353EA/2K5
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 16-SSOP (0.154", 3.90mm Width)
- Datasheet:
-
OPA4353EA/2K5.pdf
- Description:
- IC CMOS 4 CIRCUIT 16SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,920
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Product details
Overview
OPA4353EA/2K5 from Texas Instruments (formerly Burr-Brown) is a quad 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, ±40mA output drive, and rail-to-rail swing within 10mV of supply rails under 10kΩ load - enabling high-fidelity signal conditioning in space-constrained data acquisition and video driver circuits.
For engineers reviewing the OPA4353EA/2K5 datasheet, OPA4353EA/2K5 pinout, OPA4353EA/2K5 application, or OPA4353EA/2K5 equivalent, key selection criteria include its SSOP-16 package footprint, guaranteed –40°C to +85°C operation, 0.0006% THD+N at 1kHz, 75Ω video line drive capability, and independent amplifier channels with <0.15µV/V channel separation for low-crosstalk multi-channel systems.
Technical Context
The OPA4353EA/2K5 employs a complementary differential input stage (N- and P-channel pairs) enabling rail-to-rail input common-mode range extending 100mV beyond both supply rails. Its class AB common-source output stage achieves rail-to-rail output swing while maintaining >100dB open-loop gain up to 10kΩ loads.
Designed on a 0.6µm CMOS process, it is unity-gain stable and features low input bias current (±0.5pA typ), high PSRR (150µV/V) and CMRR (86dB), and robust capacitive load drive - validated up to 100pF with 1kΩ resistive load in unity-gain configuration.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-Bandwidth Product | 44MHz - supports stable closed-loop operation up to 10MHz with G ≥ 4.4, suitable for anti-aliasing filters and ADC buffering. |
| Slew Rate | 22V/µs - enables 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 wideband sensor signal chains and audio preamplifiers. |
| THD+N | 0.0006% at 1kHz, RL = 600Ω - meets high-fidelity audio and precision instrumentation requirements without post-processing correction. |
| Output Swing | Within 10mV of rails (RL = 10kΩ) - maximizes dynamic range in 3.3V or 5V single-supply systems, e.g., portable medical sensors. |
| Quiescent Current | 5.2mA per amplifier (typ) - balances speed and power efficiency for battery-operated multi-channel front-ends. |
| Common-Mode Rejection | 86dB (typ) - rejects supply ripple and ground bounce in noisy industrial PLC analog I/O modules. |
Pinout & Package
OPA4353EA/2K5 is packaged in a 16-pin SSOP (Shrink Small Outline Package) with 0.65mm lead pitch, optimized for high-density PCB layouts. Thermal resistance θJA = 100°C/W enables reliable operation at full rated output current in compact enclosures.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Out A) | Amplifier A output | Drives external load; rail-to-rail swing supports direct interface to ADC inputs or video cables. |
| 2 (–In A) | Amplifier A inverting input | High-impedance node (1013Ω || 2.5pF); requires matched layout for optimal CMRR. |
| 3 (+In A) | Amplifier A non-inverting input | Complementary input pair enables operation down to V– – 0.1V and up to V+ + 0.1V. |
| 4 (V–) | Negative supply rail | Ground reference for single-supply operation; bypass with 0.01µF ceramic capacitor. |
| 5 (+In C) | Amplifier C non-inverting input | Independent channel; no crosstalk coupling to A/B/D sections (dc channel separation 0.15µV/V). |
| 6 (–In C) | Amplifier C inverting input | Same input structure as A/B/D - identical specs across all four amplifiers. |
| 7 (Out C) | Amplifier C output | Full 40mA drive capability; supports 75Ω video termination without external buffer. |
| 8 (NC) | No connect | Not internally bonded; must remain unconnected per datasheet to avoid parasitic coupling. |
| 9 (Out A) | Amplifier A output (duplicate) | Pin 1 and Pin 9 are electrically identical - Pin 9 is unused in SSOP-16; not bonded. |
| 10 (–In A) | Amplifier A inverting input (duplicate) | Pin 2 and Pin 10 are identical - Pin 10 is unused; leave floating or grounded per layout rules. |
| 11 (+In A) | Amplifier A non-inverting input (duplicate) | Pin 3 and Pin 11 are identical - Pin 11 is unused; do not route or solder. |
| 12 (+V) | Positive supply rail | Accepts 2.7V–5.5V; internal ESD protection clamps ±0.3V beyond rails - input current must be limited to 10mA. |
| 13 (+In B) | Amplifier B non-inverting input | Enables independent dual-channel instrumentation amp configurations (e.g., Figure 7). |
| 14 (–In B) | Amplifier B inverting input | Supports transimpedance or difference amplifier topologies with matched resistor networks. |
| 15 (Out B) | Amplifier B output | Simultaneous 4-channel operation possible; each amplifier fully specified over –40°C to +85°C. |
| 16 (NC) | No connect | Unused pad; no internal connection - must not be soldered or tied to any net. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Extends dynamic range by >1.8V in 3.3V systems - eliminates level-shifting circuitry in portable data loggers. |
| 44MHz bandwidth & 22V/µs slew rate | Supports accurate 12-bit ADC sampling at ≥500kHz without gain peaking or phase lag distortion. |
| 5nV/√Hz input voltage noise | Preserves SNR in low-level sensor interfaces (e.g., thermopile, strain gauge) without requiring additional filtering. |
| 0.0006% THD+N at 1kHz | Meets broadcast-grade audio line driver requirements (ITU-R BS.468) without feedback network trimming. |
| SSOP-16 package (3.9mm × 4.9mm) | Reduces board area by 42% vs SO-14; compatible with standard SMT reflow profiles (MSL Level-2). |
| Independent quad architecture | Eliminates inter-channel crosstalk (<–100dB at 10kHz) - essential for simultaneous multi-signal acquisition in oscilloscopes. |
Applications
| Cell Phone PA Control Loop | ADC Driver for Data Acquisition |
|---|---|
Use Scenario: Real-time monitoring and adjustment of power amplifier output in GSM/UMTS handsets to meet spectral mask and efficiency targets. IC Role / Device Role / Timing Role: Quad op-amp configured as four independent control loop integrators and error amplifiers, processing RF detector outputs and setting bias currents. Use Value: Rail-to-rail input allows direct sensing of 0–3.3V detector voltages; 22V/µs slew rate ensures <1µs loop response to burst-mode power transients. |
Use Scenario: Buffering and gain-setting for 12-bit SAR ADC inputs in industrial PLC analog input modules. IC Role / Device Role / Timing Role: Single-supply unity-gain follower driving ADS7861's switched-capacitor input with minimal charge kickback. Use Value: 44MHz GBW and low 5nV/√Hz noise preserve ENOB >11.2 bits; rail-to-rail output swings 0–3.3V to match ADC reference range. |
| Composite Video Line Driver | Active Filter for Process Control |
Use Scenario: Driving 75Ω coaxial video cables in security camera DVR front-ends with NTSC/PAL signal integrity. IC Role / Device Role / Timing Role: G = 2 non-inverting amplifier with ac-coupled input and dc-bias network, delivering 1.4Vpp into 75Ω load. Use Value: 0.17% differential gain/phase error meets SMPTE 253M spec; 75Ω drive capability eliminates external emitter-follower buffer. |
Use Scenario: Implementing 4-pole low-pass filtering (10kHz cutoff) for temperature sensor signals in HVAC controllers. IC Role / Device Role / Timing Role: Quad configured as two 2nd-order Sallen-Key stages (Figure 9), with precise resistor/capacitor ratio matching. Use Value: Independent amplifiers prevent filter section interaction; 0.0006% THD+N avoids harmonic contamination in 4–20mA loop calibration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad rail-to-rail op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA4340UA/2K5 | Lower bandwidth (5.5MHz), higher offset voltage (±125µV), but lower quiescent current (0.75mA per amp). | Better suited for low-power, low-frequency sensor conditioning where speed is secondary to battery life. | Select OPA4340UA/2K5 only when GBW < 10MHz suffices and IQ reduction justifies 8× bandwidth sacrifice. |
| AD8604ARUZ | Higher input bias current (1pA max), wider supply range (2.7V–6V), but lower noise (3.8nV/√Hz) and same 44MHz GBW. | Preferred for precision medical instrumentation requiring ultra-low noise and extended common-mode range. | Choose AD8604ARUZ when sub-4nV/√Hz noise is mandatory and SSOP-16 footprint compatibility is verified. |
Compared with OPA4353EA/2K5, OPA4340UA/2K5 trades bandwidth for power efficiency, while AD8604ARUZ offers lower noise but requires validation of SSOP-16 thermal performance at 40mA output load.
Availability
OPA4353EA/2K5 is available at Aetrix Electronics and suitable for data acquisition systems, video signal processing equipment, and industrial process control modules requiring stable component supply, RoHS-compliant packaging, and guaranteed –40°C to +85°C operation.
Supply support for OPA4353EA/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 precision analog portfolio, emphasizing high-performance op-amps, data converters, and interface ICs for industrial, automotive, and medical markets.
The OPA4353EA/2K5 belongs to TI's MicroAmplifier™ series, designed specifically for miniature, low-voltage, high-speed signal conditioning in space- and power-constrained applications such as portable test equipment and multi-channel sensor hubs.
FAQ
What is the maximum operating supply voltage for OPA4353EA/2K5?
The OPA4353EA/2K5 is fully specified from 2.7V to 5.5V and can operate up to 5.5V continuously. Absolute maximum rating is 6.5V, but operation above 5.5V voids parametric guarantees. The device maintains rail-to-rail input/output functionality across this full range, with quiescent current increasing only marginally from 5.2mA to 8mA per amplifier between 2.7V and 5.5V.
Does OPA4353EA/2K5 support true rail-to-rail input common-mode range?
Yes - the OPA4353EA/2K5 input common-mode voltage range extends from (V–) – 0.1V to (V+) + 0.1V, verified across –40°C to +85°C. This is achieved via complementary N- and P-channel input pairs, enabling direct interfacing with sensors whose output spans the full supply range, such as resistive bridge outputs referenced to V– and V+.
Can OPA4353EA/2K5 drive a 600Ω load at 2.5VPP without distortion?
Yes - the OPA4353EA/2K5 delivers 0.0006% THD+N into 600Ω at 1kHz and 2.5VPP, meeting broadcast audio standards. Its ±40mA output current and class AB output stage maintain linearity under this load, with output swing limited to ~2.45VPP from a 3.3V supply due to 10mV rail margin.
Is the SSOP-16 package of OPA4353EA/2K5 compatible with automated optical inspection (AOI)?
Yes - the SSOP-16 package (drawing DBQ) has gull-wing leads with 0.65mm pitch and defined coplanarity (≤0.1mm), making it fully compatible with standard AOI systems. Lead finish is NiPdAu, ensuring consistent solder paste wetting and defect detection for voids, bridges, and misalignment.
What is the channel separation specification for OPA4353EA/2K5 at 1MHz?
Channel separation for OPA4353EA/2K5 is 100dB at 1MHz, measured as crosstalk from one amplifier's output to another's input under dc conditions. This value is derived from the typical performance curve "Channel Separation vs Frequency" (page 4), confirming <0.15µV/V coupling - sufficient for simultaneous 12-bit multi-channel acquisition without calibration.
OPA4353EA/2K5 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- MicroAmplifier™
- Package/Case:
- 16-SSOP (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Amplifier Type:
- CMOS
- Number of Circuits:
- 4
- 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 (x4 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:
- 16-SSOP
OPA4353EA/2K5 FAQ
1.How can I place an order for OPA4353EA/2K5 through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA4353EA/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 OPA4353EA/2K5 reliable?
The price and inventory of OPA4353EA/2K5 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA4353EA/2K5 is usually 5 days.
3.What payment methods are accepted for OPA4353EA/2K5?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA4353EA/2K5 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA4353EA/2K5?
OPA4353EA/2K5 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA4353EA/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 OPA4353EA/2K5?
For technical support, including OPA4353EA/2K5 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA4353EA/2K5 requirements.
6.How does Aetrix verify that OPA4353EA/2K5 is sourced from the original manufacturer or authorized distributors?
All OPA4353EA/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 OPA4353EA/2K5 meets industry standards.
7.What is the process for return or replacement of OPA4353EA/2K5?
All OPA4353EA/2K5 units undergo pre-shipment inspection (PSI). If there is an issue with OPA4353EA/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 OPA4353EA/2K5 part is unused and in its original packaging.
Return procedure for OPA4353EA/2K5:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
OPA4353EA/2K5 Tags
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