OPA2350UA/2K5 - Dual 38MHz Rail-to-Rail Op Amp | Texas Instruments
MPN: OPA2350UA/2K5 ✓ NakahandaOPA2350UA/2K5 Ulas
What is a rail-to-rail operational amplifier? A rail-to-rail input amplifier accepts input voltages across nearly the entire supply range, while a rail-to-rail output amplifier can swing its output close to the positive and negative supply rails. The OPA2350 combines these capabilities with high-speed small-signal performance and low noise. In the broader electronics hierarchy, it is a CMOS operational amplifier within the linear-amplifier and signal-conditioning categories.
The verified feature set emphasizes 38 MHz bandwidth, 22 V/µs slew rate, 5 nV/√Hz noise density, and rail-to-rail output operation within 10 mV. These figures make the device suitable for applications that require fast settling or low-noise amplification, including sampling analog-to-digital converter input stages. The family is also identified for cell-phone power-amplifier control loops and 75-ohm video-processing drive applications.
OPA2350UA/2K5 is specified as a dual amplifier in an 8-pin SOIC (D) package. The verified operating-temperature entry is -40°C to +85°C for this ordering variant. Rail-to-rail input and output behavior is particularly useful in low-voltage systems where the usable signal range is close to the supply limits and where conventional non-rail-to-rail amplifiers would clip or compress the signal.
Typical circuit roles include ADC signal conditioning, video-buffer or drive functions, control-loop amplification, and other high-speed analog front-end stages. The dual configuration can process two related channels, such as a differential or paired sensor signal, without requiring two separate packages. Designers should verify the supply voltage, load, stability, and output-swing requirements against the complete manufacturer datasheet before finalizing the analog path.
A key design consideration is to preserve the amplifier’s high-speed behavior by minimizing parasitic capacitance and using short, well-routed traces. Decoupling capacitors should be placed close to the supply pins, and sensitive input nodes should avoid proximity to switching nodes and high-current return paths. Because the verified data does not provide a complete electrical parameter table for every operating condition, consult the TI datasheet for precise limit values.
This page combines verified TI product facts, distributor availability references, practical design guidance, and structured comparison information. It is intended to help engineers identify whether the OPA2350UA/2K5 matches the required bandwidth, slew-rate, noise, supply, and package constraints.
Mga alternatibo na pwedeng ilagay na OPA2350UA/2K5 — parehas na package, pin-to-pin na katugmang. Hindi kasama ang mga bahagi ng iba't-ibang package na nangangailangan ng pagpapaayos ng PCB.
OPA2320AID
✅ Drop-In📋 Alternatibo na Reference (hindi sa katalogo)
OPA2325ID
✅ Drop-In📋 Alternatibo na Reference (hindi sa katalogo)
OPA2313QDRQ1
✅ Drop-In📋 Alternatibo na Reference (hindi sa katalogo)
OPA2350UA/2K5 Mga Pinakamataas na Rating at Electrical Characteristics
| Product Type | Dual operational amplifier |
| Architecture | CMOS rail-to-rail operational amplifier |
| Channel Count | 2 channels |
| Supply Type | Single-supply |
| Gain-Bandwidth | 38 MHz |
| Slew Rate | 22 V/µs |
| Input Noise Density | 5 nV/√Hz |
| Input Common-Mode Range | Rail-to-rail |
| Output Swing | Rail-to-rail within 10 mV |
| Total Harmonic Distortion plus Noise | 0.0006% |
| Temperature na Operasyon | -40°C to +85°C |
| Packhaging | 8-pin SOIC (D) |
| Package Type | Surface-mount SOIC |
Gabay sa Pin Configuration ng OPA2350UA/2K5 surface-mount soic
Pin configuration para sa OPA2350UA/2K5 (surface-mount soic package). Ang analog component na ito ay may input, output, at power supply pins. Sumangguni sa datasheet ng manufacturer para sa offset null, compensation, at enable pin configurations. Perpekto para sa signal conditioning at amplifier circuits.
Wala ng detalyadong pinout data na magagamit para sa OPA2350UA/2K5.
Sumangguni sa datasheet para sa buong pin configuration.
Tipikal na mga Gamit
OPA2350UA/2K5 ay nararapat para sa 6 aplikasyons: Sampling ADC Input Conditioning, Video Signal Buffering, Cell Phone Power Amplifier Control, Low-Voltage Sensor Signal Conditioning, High-Speed Analog Buffering, Precision Control and Feedback Loops.
Sampling ADC Input Conditioning
The OPA2350UA/2K5 fits high-speed ADC front ends because its verified 38 MHz gain-bandwidth and 22 V/µs slew rate support wideband signal conditioning, while 5 nV/√Hz input noise helps preserve small analog signals. The dual package can condition two channels or provide separate gain and filtering paths. Place the amplifier close to the ADC input, keep feedback traces short, and account for ADC input capacitance before choosing the final noise gain and external compensation. The rail-to-rail input/output characteristics are useful when the converter operates from a low-voltage supply and the usable signal range approaches the rails.
Inirekomenda
Video Signal Buffering
For video-processing buffers, the OPA2350UA/2K5 provides the verified 38 MHz bandwidth, 22 V/µs slew rate, and rail-to-rail output capability needed to preserve rapidly changing video signals. The dual amplifier allows two related video channels to be processed in one 8-pin SOIC, simplifying channel matching and board space. The manufacturer identifies the family as suitable for 75-ohm video drive applications. Exact output swing, load capability, distortion, and stability must be checked against the complete TI datasheet for the selected supply and termination.
Inirekomenda
Cell Phone Power Amplifier Control
The OPA2350UA/2K5 can support fast control-loop signal conditioning in cell-phone power-amplifier systems, an application specifically identified by TI for the OPA350 family. Its 38 MHz bandwidth and 22 V/µs slew rate allow the amplifier to respond quickly to envelope or feedback signals, while the rail-to-rail output helps use a low-voltage supply efficiently. The two channels can handle complementary or sequential control functions. Validate loop stability, gain, output swing, load, and supply noise at the intended operating point rather than relying only on headline bandwidth.
Inirekomenda
Low-Voltage Sensor Signal Conditioning
The OPA2350UA/2K5 is suitable for low-amplitude sensor signals when the system benefits from low-noise, high-speed amplification without requiring a large headroom voltage. The verified 5 nV/√Hz input-noise density helps limit amplifier-added noise, while rail-to-rail input operation can improve usable range in compact sensor modules. Use the dual configuration for two correlated sensor channels or gain and filter stages. Source impedance, sensor bandwidth, common-mode voltage, ADC input range, and power dissipation must be evaluated together because a fast amplifier does not eliminate noise from the complete signal chain.
Inirekomenda
High-Speed Analog Buffering
Where an analog node needs low-impedance buffering but the signal changes rapidly, the OPA2350UA/2K5 combines its 38 MHz gain-bandwidth, 22 V/µs slew rate, and rail-to-rail output operation in a compact dual SOIC-8 package. One channel can buffer a sensor or converter output while the other handles a reference or auxiliary signal. Proper layout is essential: terminate feedback close to the pins, minimize input-node capacitance, and use local supply decoupling. Check the complete datasheet for capacitive-load stability and output-drive limits before attaching a high-capacitance ADC or cable.
Inirekomenda
Precision Control and Feedback Loops
The OPA2350UA/2K5 can be used in fast feedback or control blocks where loop bandwidth and signal settling matter more than minimum power. Its verified 38 MHz small-signal bandwidth and 22 V/µs slew rate provide ample dynamic range for responsive loops, while the dual arrangement allows two error signals or two complementary control channels to be handled together. Designers should verify loop gain, phase margin, noise, output range, and stability using the complete electrical model and datasheet curves. Keep compensation components close to the relevant pins and isolate the analog loop from switching regulators.
Inirekomenda
Buod ng mga Inirekomendang Produkto
Impormasyon ng Talumpati sa Engineering for OPA2350UA/2K5 — ikabit, gabay sa disenyo, at impormasyon ng pagsunod sa kautusan.
Paunawang Hanapin
Ikabit sa Mga Alternatibo
| Parametro | Ito ang Producto | OPA2320AID | OPA2325ID | OPA2313QDRQ1 |
|---|---|---|---|---|
| Package | 8-pin SOIC (D) | SOIC-8 - package context requires final confirmation | SOIC-8 - package context requires final confirmation | SOIC-8 - package context requires final confirmation |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Channel Count | 2 channels | Dual amplifier; verify exact channel implementation | Dual amplifier; verify exact channel implementation | Dual amplifier; verify exact channel implementation |
Pangunahing mga Pagkakaiba
- Higher verified speed than OPA2320AID (kumpara saOPA2320AID)
- Rail-to-rail high-speed signal conditioning (kumpara saOPA2325ID)
- Low-noise performance for fast analog paths (kumpara saOPA2320AID)
Talaan ng Disenyo
Place supply-decoupling capacitors immediately adjacent to the OPA2350UA/2K5 supply pins and keep the input, feedback, and output traces short. The verified 38 MHz bandwidth and 22 V/µs slew rate make parasitic capacitance and long routing more important than in a low-frequency amplifier. Use a continuous ground reference, minimize loop area in feedback paths, and route the dual channels to maintain channel-to-channel timing and noise symmetry.
Treat the amplifier as a high-speed analog signal-path component rather than a general-purpose slow op amp. Check ADC input capacitance, cable or load capacitance, output drive, and feedback-network stability against the complete TI electrical data. For video or 75-ohm drive use cases, verify the required termination and output swing. A 38 MHz bandwidth specification does not by itself guarantee stable operation with every capacitive load.
Do not substitute a related OPA family member based only on the dual-amplifier and package description. OPA2320AID is described by TI as lower in gain-bandwidth and slew rate, while OPA2325ID and OPA2313QDRQ1 require separate verification. Confirm the exact pinout, supply range, temperature grade, electrical limits, and package marking before using any replacement in production.
Impormasyon ng Pagsunod sa Kautusan
The supplied verified data does not state compliance declarations for OPA2350UA/2K5. AEC-Q100 is marked not_applicable only because no automotive qualification claim was provided; confirm current manufacturer documentation before regulated use.
