AD573KD/+ - 10-Bit Single-Input SAR ADC | Analog Devices
MPN: AD573KD/+ ✓ نشطAD573KD/+ نظرة عامة
An ADC is a data-conversion IC that converts a time-varying analog voltage into a numeric representation. The AD573 belongs to the SAR ADC hierarchy, where successive-approximation conversion compares the input against internally generated reference levels. It is used when a system needs compact, standalone conversion rather than the throughput and integration provided by a more complex high-speed converter.
The principal verified specifications are 10-bit resolution, one analog input, SAR architecture, and a 20-CDIP package. Performance is guaranteed with +5 V and -12 V or -15 V supplies. The AD573KD/+ also appears as a 20-CDIP component with 2.54 mm leads, while the broader AD573 family is offered in multiple package configurations. Its digital outputs are suitable for parallel-processing systems, instrumentation, and industrial control equipment.
The AD573 family is a complete converter according to the manufacturer product page, and no external components are required to perform a conversion. This simplifies analog front-end design when the available input range and acquisition rate meet the application requirements. The single-ended input arrangement also keeps the signal interface straightforward, although system-level grounding and signal conditioning remain essential for reliable measurements.
Typical uses include process monitoring, industrial data acquisition, instrumentation, laboratory equipment, and embedded control systems. Designs must accommodate the converter's separate positive and negative supply requirements and interface its parallel outputs correctly to the host controller, counter, latch, or digital bus.
When laying out the AD573KD/+, place the device close to the analog source and provide suitable bypass decoupling on the supply pins. The ceramic DIP package is suited to conventional through-hole assembly rather than high-density surface-mount designs. Confirm the complete pinout and timing behavior against the manufacturer datasheet before finalizing routing.
This page consolidates verified manufacturer and distributor information for the AD573KD/+, adds application-focused design context, distinguishes confirmed specifications from unavailable details, and clearly records that no verified pin-to-pin substitute was found rather than presenting a merely similar converter as a drop-in replacement.
بدائل مباشرة لـ AD573KD/+ — نفس الحزمة، متوافق دبوس بدبوس. تُستثنى القطع ذات الحزم المختلفة التي تتطلب تعديل PCB.
لا تتوفر بدائل متوافقة تمامًا لهذا المنتج.
اطلب بدائلAD573KD/+ الحدود القصوى والخصائص الكهربائية
| الدقة | 10 bit |
| Analog Input Count | 1 input |
| Converter Architecture | SAR |
| Input Type | Single-ended |
| Digital Interface | Parallel |
| Positive Supply Voltage | +5 V |
| Negative Supply Voltage | -12 V or -15 V |
| العلبة | 20-CDIP, ceramic DIP |
| Package Pin Count | 20 pins |
| Lead Pitch | 2.54 mm |
| Maximum Power Dissipation | 800 mW |
| External Conversion Components | None required |
| نمط التركيب | Through-hole |
دليل تكوين أطراف AD573KD/+ 20 pins
تكوين الأطراف لـ AD573KD/+ (حزمة 20 pins). 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 AD573KD/+.
راجع ورقة البيانات للحصول على تكوين الأطراف الكامل.
التطبيقات النموذجية
AD573KD/+ مناسب لـ 6 التطبيقs: Industrial Process Monitoring, Laboratory Instrumentation, Embedded Control Systems, Data Acquisition Systems, Sensor Signal Conditioning Interface, Legacy Test and Measurement Equipment.
Industrial Process Monitoring
The AD573KD/+ fits a single-channel industrial process-monitoring path when the measured variable can be conditioned into the converter's supported input range. Its 10-bit SAR architecture provides a straightforward successive-approximation conversion function, while the 20-CDIP package supports conventional through-hole assembly and serviceable control systems. The converter's separate +5 V and -12 V or -15 V supplies require a deliberate dual-rail design, and its parallel outputs must connect to the host counter, latch, or processor interface. Because conversion speed and temperature limits were not included in the verified excerpts, engineers should confirm those specifications before selecting it for fast-loop or extended-temperature installations.
Laboratory Instrumentation
The AD573KD/+ can serve as the analog measurement front end in laboratory instrumentation that converts one conditioned analog voltage into a 10-bit digital result. Its SAR conversion architecture and complete converter function make it appropriate for repeatable, moderate-speed measurements rather than high-bandwidth waveform acquisition. The 20-CDIP ceramic package is practical for instrument boards assembled with through-hole components and for applications where long service life and field replaceability matter. Designers should bypass both supply rails, maintain a controlled reference and analog ground arrangement, and consult the manufacturer datasheet for the complete timing and accuracy data before defining measurement bandwidth.
Embedded Control Systems
AD573KD/+ is applicable in embedded control systems that accept a single analog command or sensor signal and require a digital value for control or status reporting. Its 10-bit resolution provides 1,024 representable codes across the converter's operating range, while the parallel interface allows direct connection to suitable digital acquisition logic. The device uses a through-hole 20-CDIP package and requires +5 V together with -12 V or -15 V, which makes power planning more involved than for a single-rail converter. Firmware and hardware developers must also confirm conversion timing and available output settling behavior against the official datasheet.
Data Acquisition Systems
The AD573KD/+ is well suited to legacy or deliberately serviceable single-channel data-acquisition systems using parallel digital buses. Its one-input SAR configuration supports repeated sampling of a conditioned analog signal, and no external components are required specifically to perform a conversion according to Analog Devices. The 20-CDIP ceramic package allows sockets or conventional through-hole assembly, which can simplify repair and expansion in equipment that has not migrated to surface-mount parts. Acquisition-clock rate, input bandwidth, and exact digital timing must be checked from the complete manufacturer data before setting the system sampling frequency.
Sensor Signal Conditioning Interface
AD573KD/+ can form the conversion stage of a sensor interface when a transducer produces one conditioned, single-ended analog voltage. The 10-bit result may be used for thresholding, compensation, or supervisory control rather than high-fidelity waveform reproduction. The ADC requires +5 V and either -12 V or -15 V, so the analog sensor circuit and digital interface should be referenced carefully to avoid offset or saturation errors. Input protection, anti-alias filtering, grounding, and supply bypass remain external design tasks even though no external components are needed for the basic conversion operation.
Legacy Test and Measurement Equipment
The AD573KD/+ is a practical candidate for retrofitting or maintaining legacy test and measurement equipment that uses a 20-CDIP data-acquisition interface. Its SAR architecture provides a deterministic conversion sequence, and the ceramic DIP package is mechanically compatible with repair-oriented through-hole construction. The main engineering constraints are the required +5 V and -12 V or -15 V supplies and the need to preserve the original parallel-bus timing. Before substitution, verify the exact footprint, pin functions, acquisition clock, and converter behavior against the original board documentation and the official AD573 datasheet.
بيانات مرجعية هندسية لـ AD573KD/+ — المقارنة وإرشادات التصميم ومعلومات الامتثال.
دليل الاختيار
المقارنة مع البدائل
| المعامل | هذا المنتج |
|---|---|
| Package | 20-CDIP |
| Brand | Analog Devices |
| Resolution | 10 bit |
| Input Count | 1 input |
| Architecture | SAR |
| Input Type | Single-ended |
| Digital Interface | Parallel |
| Supply Configuration | +5 V and -12 V or -15 V |
| Maximum Power Dissipation | 800 mW |
| Lead Pitch | 2.54 mm |
ملاحظات التصميم
Plan the AD573KD/+ power tree for both a +5 V rail and a -12 V or -15 V rail. The manufacturer's product page explicitly guarantees performance with those supply combinations. Place suitable bypass capacitors close to the device supply pins, observe the polarity of the negative rail, and keep switching-converter and digital return currents out of the analog signal path to reduce supply-coupled conversion errors.
Use a through-hole layout matching the 20-CDIP footprint and its 2.54 mm lead pitch. Do not substitute a plastic-DIP or leaded-chip-carrier footprint without comparing every pin mechanically and electrically. Route the parallel outputs away from the analog input and supply nodes where practical, provide a solid ground reference, and follow the complete manufacturer pin table before fixing the board layout.
Condition the single-ended analog input so that it remains within the converter's supported input range during startup, transient events, and normal operation. The verified data does not state the input range, conversion rate, or acquisition time, so those values must be obtained from the AD573 datasheet. Add appropriate source impedance and filtering only after considering the specified input settling requirements rather than selecting capacitors generically.
Do not treat the 10-bit resolution alone as sufficient evidence that the AD573KD/+ can meet an application's acquisition bandwidth. Verify the sampling rate, conversion timing, output settling, input range, and accuracy from the complete manufacturer datasheet. Also avoid assuming that a related AD573-family suffix is pin-compatible: the verified sources establish the AD573KD/+ 20-CDIP configuration but do not validate a drop-in substitute.
معلومات الامتثال
The verified excerpts mention a MIL-STD-883-compliant AD573 version for the broader family, but they do not identify whether the AD573KD/+ ordering option is that version. RoHS, REACH, lead-free, halogen-free, and conflict-minerals status were not provided for this exact MPN.
