ADS831E - 8-Bit 80-MSPS ADC | Texas Instruments
MPN: ADS831E ✓ نشطADS831E نظرة عامة
An ADC is a data-acquisition semiconductor that samples an analog voltage and converts it into a digital code. The ADS831E belongs to the pipeline ADC family within data converters and ICs. Its high-bandwidth track-and-hold circuit samples the input rapidly, while the pipeline architecture supports conversion rates up to 80 million samples per second for communications, video, medical imaging, and test-instrumentation systems.
Key verified features include an 8-bit quantizer, 80-MSPS maximum sampling rate, 49 dB high SNR, 275 mW low power, 0.35 LSB low DNL, internal or external reference options, and programmable input range. The converter supports single-ended operation for conventional analog signals and differential operation when improved spurious performance is required.
The device operates from one +5 V supply and is specified in a 20-SSOP package. The TI product page identifies low distortion and high SNR as useful for medical imaging, communications, video, and test instrumentation. The verified single-ended range is 1.5 V to 3.5 V, giving the system designer a defined input window for analog front-end scaling and reference selection.
Typical signal-chain implementation places the analog source, driver or front end, and ADS831E before a digital processor or FPGA. The 80-MSPS rate supports high-speed waveform acquisition, communications-channel digitization, video sampling, and instrumentation. Differential input can reduce common-mode sensitivity and improve spurious performance, while internal reference support simplifies designs that do not require an external reference voltage.
Designers should confirm the complete electrical limits, reference requirements, timing, pin functions, and thermal limits in the TI ADS831 datasheet and the ADS831E ordering information. The available verified data does not establish a public price for every quantity tier, so purchasing decisions should use distributor confirmation rather than an assumed price.
بدائل مباشرة لـ ADS831E — نفس الحزمة، متوافق دبوس بدبوس. تُستثنى القطع ذات الحزم المختلفة التي تتطلب تعديل PCB.
الطرازات في هذه السلسلة
طرازات من نفس السلسلة متوافقة تمامًا مع ADS831E (نفس عامل الشكل والبصمة) — يختلف في Architecture, Package, Resolution, Input Type, Reference.
ADS830EG4
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عرض ورقة البيانات ←ADS831E الحدود القصوى والخصائص الكهربائية
| الدقة | 8 bit |
| Maximum Sampling Frequency | 80 MSPS |
| Architecture | Pipeline CMOS ADC |
| Input Type | Single-ended or differential analog input |
| Single-Ended Input Range | 1.5 V to 3.5 V |
| جهد التغذية | Single +5 V supply |
| High SNR | 49 dB |
| Low Power | 275 mW |
| Low DNL | 0.35 LSB |
| Reference | Internal or external reference |
| Input Range | Programmable |
| درجة حرارة التشغيل | -40 C to +85 C |
| العلبة | 20-pin SSOP |
| نوع التركيب | Surface mount |
| Application Areas | Medical imaging, communications, video, test instrumentation |
دليل تكوين أطراف ADS831E 20-pin ssop
تكوين الأطراف لـ ADS831E (حزمة 20-pin ssop). يتميز هذا المكوّن التناظري بأطراف الإدخال والإخراج وإمداد الطاقة. راجع ورقة بيانات الشركة المصنعة لتكوينات طرف إلغاء الإزاحة والتعويض والتمكين. مثالي لدوائر تكييف الإشارة والمضخمات.
لا تتوفر بيانات مفصلة لمخطط التوصيلات لـ ADS831E.
راجع ورقة البيانات للحصول على تكوين الأطراف الكامل.
التطبيقات النموذجية
ADS831E مناسب لـ 6 التطبيقs: Communications Signal Acquisition, Video Sampling, Medical Imaging, Test and Measurement Equipment, Industrial Waveform Monitoring, Portable Measurement Systems.
Communications Signal Acquisition
The ADS831E fits communications front ends that need an 8-bit converter capable of sampling at up to 80 MSPS. Place it after the RF or baseband gain stage and its driver so the analog signal reaches the ADC within the 1.5 V to 3.5 V single-ended range, or use differential operation to improve spurious performance. The 80-MSPS rate leaves bandwidth for wideband channel digitization, while the selectable internal or external reference helps align the converter with the system measurement chain. Designers should verify analog bandwidth, settling time, clock jitter, and digital interface timing in the complete signal-path specification.
موصى به
Video Sampling
The ADS831E is suitable for video-related sampling when the design requires an 8-bit digital representation and a maximum conversion rate of 80 MSPS. Use the converter in a video sensor or video front-end chain after level shifting and impedance conditioning, with the analog input scaled into the supported 1.5 V to 3.5 V single-ended window. Differential input can be valuable when the video source requires improved common-mode rejection or lower spurious content. The final design must check pixel timing, horizontal and vertical blanking requirements, output coding, and analog settling; those details are not specified in the supplied search snippets.
موصى به
Medical Imaging
The ADS831E can support medical-imaging signal acquisition because TI identifies low distortion and high SNR as useful in this domain. Position the converter after the imaging sensor buffer and gain stage, then provide a controlled +5 V supply and reference arrangement. The 80-MSPS rate is useful for fast sampled waveforms, while differential operation may improve behavior when the source is balanced or common-mode variation is present. It is not a medical certification by itself; system designers must separately address applicable medical, isolation, diagnostic, environmental, and qualification requirements.
موصى به
Test and Measurement Equipment
The ADS831E is appropriate for instrumentation that digitizes repetitive or high-speed analog waveforms. Its 8-bit resolution and 80-MSPS capability provide a compact sampling path for oscilloscope-like, automated test, or control-system front ends when the required bandwidth and accuracy fit those specifications. Use the internal or external reference option to match the measurement architecture, and connect the digital output to an FPGA, microcontroller, or capture logic. Validate sample-clock jitter, input bandwidth, full-scale calibration, and data timing; the supplied data does not specify the complete ADC dynamic-performance test conditions.
موصى به
Industrial Waveform Monitoring
The ADS831E can serve as the ADC in an industrial waveform-monitoring subsystem when the monitored signal bandwidth is compatible with its 80-MSPS maximum sampling rate. The single +5 V supply requirement simplifies power distribution, and the single-ended range of 1.5 V to 3.5 V provides a defined target for input conditioning. Differential operation may be preferred for noisy environments or balanced sensor outputs. Industrial qualification, isolation, surge protection, EMC behavior, and long-term drift are system-level requirements that are not established by the supplied ADS831E search data.
موصى به
Portable Measurement Systems
The ADS831E can support portable measurement systems where a low-power, compact high-speed ADC is required. Its stated 275 mW low-power characteristic is useful for battery-operated equipment, while the 20-SSOP package supports dense board layouts. The system must still budget for the +5 V supply conversion, analog reference, input driver, digital capture logic, and thermal dissipation. Verify the complete datasheet power conditions and ensure that the converter's 80-MSPS rate matches the signal bandwidth; the verified snippets do not provide battery-life calculations or mobile-specific operating profiles.
موصى به
ملخص المنتجات الموصى بها
بيانات مرجعية هندسية لـ ADS831E — المقارنة وإرشادات التصميم ومعلومات الامتثال.
دليل الاختيار
المقارنة مع البدائل
| المعامل | هذا المنتج | ADS830 |
|---|---|---|
| Package | 20-pin SSOP | SSOP-20 - package family stated in verified TI cross-reference data |
| Brand | Texas Instruments | Texas Instruments |
| Resolution | 8 bit | 8 bit |
| Maximum Sampling Frequency | 80 MSPS | 60 MHz |
أبرز الفروقات
- Higher verified maximum sampling rate than ADS830 (مقابلADS830)
- Explicit single-ended input range (مقابلADS830)
- Verified high SNR and low DNL positioning (مقابلADS830)
ملاحظات التصميم
Plan the +5 V rail for the ADC analog supply, digital interface, reference requirements, and analog front end rather than assuming the converter is the only load. The verified family description identifies a single +5 V supply, but the supplied data does not provide the complete regulator sequencing or decoupling table. Place required bypass capacitors close to the supply pins according to the manufacturer layout guidance and validate ripple at the ADC pins.
Condition the analog input so it reaches the converter within the specified 1.5 V to 3.5 V single-ended range or the applicable differential limits. The verified data identifies both single-ended and differential operation; differential operation may improve spurious performance, but it requires correct common-mode voltage, source impedance, and timing. Check track-and-hold settling, analog bandwidth, sampling-clock edge placement, and source drive margin with the complete datasheet.
Keep the analog input path, reference connection, supply bypass network, and ground-return structure compact and physically separated from fast digital output and clock routing. The supplied search results do not provide a complete PCB layout or pin table, so obtain the official TI package drawing and recommended layout before making footprint or decoupling decisions. Verify pin numbering against the selected SSOP symbol.
Do not treat the ADS831E and ADS830 cross-reference statement as proof that every operating condition is identical. TI identifies them as pin-for-pin compatible, but the verified snippets state 80 MSPS for ADS831 and 60 MHz for ADS830. A replacement decision must also check input range, reference behavior, timing, power, digital coding, temperature, and lifecycle requirements.
معلومات الامتثال
The supplied verified snippets do not explicitly state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status. No compliance claim is inferred.
