OPA640P - 1.3 GHz Wideband Op Amp | Texas Instruments
MPN: OPA640P ✓ सक्रियOPA640P अवलोकन
An operational amplifier is a voltage-feedback amplifier that uses high open-loop gain to amplify the voltage difference between its inverting and non-inverting inputs. Within the broader semiconductor hierarchy, the OPA640P is an analog linear IC, an operational amplifier, and a wideband voltage-feedback amplifier. Its combination of bandwidth, slew rate, and low noise distinguishes it from general-purpose precision amplifiers intended mainly for slow signal conditioning.
The OPA640P's 1.3 GHz unity-gain bandwidth supports wide closed-loop bandwidth when the surrounding feedback network permits it. Unity-gain stability means the amplifier can provide useful closed-loop operation without requiring a high noise-gain setting. Its 350 V/µs slew rate supports rapid signal transitions, while the specified 2.9 nV/√Hz noise density supports high-gain amplification of low-level analog signals.
The verified source material also identifies 85 dB common-mode rejection and emphasizes low harmonic distortion at 10 MHz. These characteristics matter when the amplifier processes small signals superimposed on larger common-mode voltages or when broadband nonlinear distortion would limit measurement accuracy. The OPA640P is a voltage-feedback device rather than a current-feedback amplifier, so its feedback network and stability behavior should be evaluated using the manufacturer's guidance.
Typical applications include broadband instrumentation, communications-interface signal conditioning, video amplification, active filtering, buffer stages, and gain blocks requiring more bandwidth than ordinary precision op amps provide. The wide operating capability can help designers preserve signal fidelity when analog stages must operate over a substantially higher frequency range than conventional audio-frequency amplifiers.
Designers should confirm the complete electrical limits, recommended supply voltages, common-mode range, output swing, input bias current, offset voltage, and stability network requirements in the manufacturer datasheet before production use. Because the verified excerpts do not provide the complete pin mapping or application circuit values, those details must not be inferred from the package description alone.
This page combines verified distributor information, distributor availability context, and manufacturer-style technical parameters for OPA640P selection. It also identifies where additional engineering data is required rather than presenting unverified specifications, ensuring that bandwidth, noise, slew-rate, packaging, and lifecycle decisions can be traced to available source material.
के लिए ड्रॉप-इन विकल्प OPA640P — समान पैकेज, पिन-टू-पिन संगत। PCB रीवर्क आवश्यक करने वाले भिन्न-पैकेज पार्ट्स शामिल नहीं हैं।
इस उत्पाद के लिए कोई drop-in alternatives उपलब्ध नहीं।
विकल्प अनुरोध करेंOPA640P Maximum Ratings और Electrical Characteristics
| Product Type | Voltage-feedback operational amplifier |
| Number of Circuits | 1 circuit |
| Unity-Gain Bandwidth | 1.3 GHz |
| Unity-Gain Stability | Unity-gain stable |
| Input Voltage Noise Density | 2.9 nV/√Hz |
| Common-Mode Rejection Ratio | 85 dB |
| Slew Rate | 350 V/µs |
| Low-Harmonic-Distortion Frequency | 10 MHz |
| पैकेज | 8-pin PDIP |
| Package Technology | Through-hole DIP |
| Package Width | 0.300 in (7.62 mm) |
| Number of Terminals | 8 terminals |
| Temperature Grade | Industrial |
| माउंटिंग प्रकार | Through-hole |
OPA640P 0.300 in (7.62 mm) पिन कॉन्फ़िगरेशन गाइड
OPA640P (0.300 in (7.62 mm) पैकेज) के लिए पिन कॉन्फ़िगरेशन। इस एनालॉग कंपोनेंट में इनपुट, आउटपुट और पावर सप्लाई पिन हैं। ऑफ़सेट नल, कम्पनसेशन और एनेबल पिन कॉन्फ़िगरेशन के लिए निर्माता डेटाशीट देखें। सिग्नल कंडीशनिंग और एम्प्लीफ़ायर सर्किट के लिए आदर्श।
इसके लिए कोई विस्तृत pinout data उपलब्ध नहीं: OPA640P.
देखें डेटाशीट पूर्ण पिन कॉन्फ़िगरेशन के लिए।
सामान्य अनुप्रयोग
OPA640P के लिए उपयुक्त है 6 अनुप्रयोगs: Wideband Instrumentation Signal Conditioning, Communications Receive-Signal Amplification, Video Gain and Buffer Stages, Active Filtering and Equalization, Precision Low-Level Buffering, Broadband Test and Measurement Front Ends.
Wideband Instrumentation Signal Conditioning
OPA640P fits wideband instrumentation because its verified 1.3 GHz unity-gain bandwidth and 350 V/µs slew rate preserve signal amplitude and timing across substantially higher frequencies than conventional precision amplifiers. The unity-gain-stable voltage-feedback architecture allows the same device family to serve as a gain or buffer stage when feedback conditions remain appropriate. Its 2.9 nV/√Hz input noise is also relevant when amplifying small sensor or laboratory signals. The design must still verify supply limits, common-mode range, output swing, and stability against the complete manufacturer datasheet before implementation.
अनुशंसित
Communications Receive-Signal Amplification
OPA640P can amplify small received signals in communications equipment when the required frequency range approaches its verified 1.3 GHz unity-gain bandwidth. Its 350 V/µs slew rate provides additional margin for large or rapidly changing signal excursions, while 85 dB common-mode rejection helps reduce corruption from common-mode voltage. These characteristics make the device relevant to IF, baseband, and wideband interface blocks, although designers must confirm that the operating supply, common-mode input range, and output drive remain suitable for the selected gain and load.
अनुशंसित
Video Gain and Buffer Stages
OPA640P is well matched to video gain and buffer stages because the verified data combines a 1.3 GHz unity-gain bandwidth, 350 V/µs slew rate, and low harmonic distortion at 10 MHz. The bandwidth supports high-frequency gain stages, and the slew rate allows the output to follow larger video transitions without the slew limitation found in slower amplifiers. Unity-gain stability is useful when the stage operates at or near a follower configuration. Cable loading, gain, output swing, and allowable distortion must still be checked against the actual video standard and complete OPA640P datasheet.
अनुशंसित
Active Filtering and Equalization
OPA640P can serve in active filters and equalizer stages whose useful signal band approaches hundreds of megahertz. Its 1.3 GHz unity-gain bandwidth provides more closed-loop bandwidth potential than conventional audio op amps, while unity-gain stability supports low-noise-gain configurations when correctly compensated. The 2.9 nV/√Hz noise density contributes favorably to high-gain sections, and the 350 V/µs slew rate helps preserve large-signal behavior. Exact resistor and capacitor values require the manufacturer's stability guidance and must be checked for target gain, Q, load, and supply conditions.
अनुशंसित
Precision Low-Level Buffering
OPA640P can buffer low-level sensor or laboratory signals where noise and input loading are important but wide bandwidth remains useful. Its 2.9 nV/√Hz input noise density is the principal benefit for high-gain measurement paths, while 85 dB common-mode rejection reduces interference caused by voltage shared by both inputs. The unity-gain-stable topology is particularly relevant to voltage-follower implementations. Before using the device in a precision DC measurement path, however, engineers should confirm input bias current, offset voltage, input bias-current cancellation, and output settling specifications, which are not present in the supplied excerpts.
अनुशंसित
Broadband Test and Measurement Front Ends
OPA640P is relevant to broadband test and measurement front ends where attenuation, gain, or buffering must occur over a high frequency range. The verified 1.3 GHz unity-gain bandwidth and 350 V/µs slew rate offer the headroom needed for fast test signals, while the 2.9 nV/√Hz noise density supports low-amplitude measurements. Because instruments often impose strict requirements for output swing, offset, input bias current, settling, and long-term drift, those specifications must be taken from the full manufacturer document. The component should also be evaluated for the instrument's intended gain bandwidth, load, and calibration architecture.
अनुशंसित
अनुशंसित उत्पादों का सारांश
के लिए इंजीनियरिंग संदर्भ डेटा OPA640P — तुलना, डिज़ाइन मार्गदर्शन और अनुपालन जानकारी।
चयन गाइड
विकल्पों के साथ तुलना
| पैरामीटर | यह उत्पाद |
|---|---|
| Package | 8-pin PDIP |
| Brand | Texas Instruments |
| Product Type | Voltage-feedback operational amplifier |
| Number of Circuits | 1 circuit |
| Unity-Gain Bandwidth | 1.3 GHz |
| Unity-Gain Stability | Unity-gain stable |
| Input Voltage Noise Density | 2.9 nV/√Hz |
| Common-Mode Rejection Ratio | 85 dB |
| Slew Rate | 350 V/µs |
| Low-Harmonic-Distortion Frequency | 10 MHz |
| Mounting Technology | Through-hole PDIP |
| Verified Single-Unit Price | $7.45 as of 2026-10-28 |
मुख्य विशेषताएँ
- Combines very wide bandwidth with low input noise (बनामGeneral-purpose precision operational amplifiers)
- Provides high slew rate for fast signal transitions (बनामAudio-frequency operational amplifiers)
- Maintains common-mode rejection in wideband systems (बनामGeneral-purpose single-supply amplifiers with restricted common-mode range)
- Supports direct unity-gain buffer operation (बनामCurrent-feedback amplifiers)
डिज़ाइन नोट्स
Do not treat a related OPA640-family part as a substitute merely because its bandwidth appears similar. Confirm the exact package, pin numbers, supply limits, input common-mode range, output swing, offset behavior, and stability requirements against the official OPA640P datasheet. The verified sources identify an 8-pin PDIP device but do not provide the complete numbered pin map, so the PCB footprint and schematic assignments must be checked directly before layout release or socket substitution.
Keep the feedback loop compact and use the manufacturer's recommended feedback topology for the intended closed-loop gain. With a 1.3 GHz unity-gain bandwidth and 350 V/µs slew rate, parasitic capacitance, long traces, and excessive loading can affect stability, peaking, and settling. Place input and feedback components close to the device, maintain a short ground-return path, and evaluate the completed board with appropriate bandwidth and time-domain measurements rather than relying on nominal gain calculations alone.
Confirm the allowable supply range and output swing from the complete datasheet before selecting bypass capacitors or defining the downstream power budget. The verified data does not state operating voltage, quiescent current, output-current capability, or output swing, so those values cannot be substituted from a generic op-amp family. Use adequately rated, low-ESR decoupling close to the supply pins and verify startup, shutdown, and load-transient behavior against the final regulator and output-load configuration.
Assess dissipation from the actual supply voltage, output voltage, quiescent current, load current, and package thermal resistance rather than from slew rate alone. The verified excerpt provides 350 V/µs slew rate but does not provide the supply-current or thermal-resistance values needed for a complete power calculation. Through-hole assembly may improve heat spreading compared with a small surface-mount package, but the actual board copper, airflow, and ambient conditions must be included in the thermal review.
अनुपालन जानकारी
The supplied verified excerpts identify OPA640P as an industrial-grade 8-PDIP device but do not explicitly state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status. AEC-Q100 is treated as not applicable to the industrial-grade designation, not as evidence of automotive qualification.