AD573JD - 10-Bit SAR ADC | Analog Devices | Data Acquisition
MPN: AD573JD ✗ انتهى عمره الإنتاجيAD573JD نظرة عامة
An ADC is an interface IC that translates a continuously varying analog voltage into a digital code for processing, measurement, or control. The AD573 belongs to the SAR ADC family, whose internal comparator repeatedly selects residual-voltage bits until the 10-bit conversion is complete. Because the AD573 includes its reference, clock, and comparator, the manufacturer describes it as a complete converter requiring no external components to perform a conversion.
The AD573's principal engineering features include a 10-bit conversion resolution, no missing codes over temperature, and operation from +5 V and either -12 V or -15 V supplies. These characteristics make it suitable for instrumentation, industrial monitoring, sensor measurement, data acquisition, and embedded control systems where a compact parallel-output ADC is appropriate.
The AD573 family is available in multiple package configurations, including 20-pin hermetically sealed ceramic DIP. The manufacturer product page states that AD573J and AD573K versions can also be supplied in a 20-pin plastic DIP or 20-pin leaded chip carrier. The AD573JD ordering code identifies the hermetically sealed ceramic DIP configuration, whose package is suited to demanding temperature-range and reliability environments.
Typical uses include digitizing transducer outputs in industrial measurement systems, acquiring slowly changing sensor signals in data-acquisition equipment, monitoring process variables in instrumentation, and feeding sampled analog data into microprocessor-based embedded controllers. The parallel digital interface simplifies connection to systems with dedicated data and control buses, while the integrated converter functions reduce external component count.
Designers should verify the complete pinout, electrical limits, timing relationships, reference behavior, input range, and bus interface against the manufacturer datasheet before layout or replacement qualification. Because the device uses a negative supply alongside +5 V, bypassing and grounding must be planned carefully. A replacement should be accepted only when its package, pin assignment, logic levels, supply requirements, conversion timing, and temperature grade are verified as compatible.
This page consolidates the verified AD573JD converter characteristics, package information, application guidance, sourcing caveats, and replacement constraints. It also distinguishes verified facts from parameters that still require confirmation from the manufacturer datasheet, helping engineers avoid treating an incomplete distributor listing as a complete design specification.
بدائل مباشرة لـ AD573JD — نفس الحزمة، متوافق دبوس بدبوس. تُستثنى القطع ذات الحزم المختلفة التي تتطلب تعديل PCB.
لا تتوفر بدائل متوافقة تمامًا لهذا المنتج.
اطلب بدائلAD573JD الحدود القصوى والخصائص الكهربائية
| الدقة | 10 bit |
| Converter Architecture | 1 successive-approximation converter |
| Conversion Time | 20 µs typical |
| Positive Supply Voltage | +5 V |
| Negative Supply Voltage | -12 V or -15 V |
| Number of Channels | 1 channel |
| الواجهة | 1 parallel microprocessor bus interface |
| Bus Width Support | 10-bit or 16-bit microprocessor bus |
| العلبة | 20-pin hermetically sealed ceramic DIP |
| نوع التركيب | 1 through-hole package |
| Integrated Functions | 1 reference, 1 clock, and 1 comparator |
| External Components for Conversion | 0 components required |
| Missing Codes Over Temperature | 0 missing codes |
| Input Signal Type | 1 analog input |
دليل تكوين أطراف AD573JD 20-pin hermetically sealed ceramic dip
تكوين الأطراف لـ AD573JD (حزمة 20-pin hermetically sealed ceramic dip). 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 AD573JD.
راجع ورقة البيانات للحصول على تكوين الأطراف الكامل.
التطبيقات النموذجية
AD573JD مناسب لـ 6 التطبيقs: Industrial Process Measurement, Sensor Signal Acquisition, Data Acquisition Systems, Instrumentation and Measurement Equipment, Embedded Control Systems, Legacy Avionics and Military Systems.
Industrial Process Measurement
The AD573JD fits industrial process measurement because its 10-bit SAR architecture provides a stated 20 µs typical conversion time and its parallel interface can transfer each sample to a digital controller without a serial protocol. The integrated reference, clock, and comparator also reduce the number of external conversion components. An engineer can place the converter after a conditioned sensor signal and use the digital output for monitoring, thresholding, or feedback control. The principal design checks are the verified input range, acquisition timing, logic compatibility, and availability of +5 V and -12 V or -15 V supplies.
Sensor Signal Acquisition
AD573JD is applicable to sensor-signal acquisition when the conditioned output lies within the converter's verified analog input range and 10-bit resolution is adequate for the measurement. Its complete SAR conversion function includes a reference, clock, and comparator, allowing a system to acquire successive samples at a 20 µs typical conversion time without building a discrete successive-approximation stage. The parallel digital output can feed a microprocessor or programmable logic. Input settling, source impedance, sampling dynamics, and system noise must still be verified from the manufacturer datasheet.
Data Acquisition Systems
The AD573JD suits legacy data-acquisition systems that use a parallel-bus ADC and require a hermetically sealed ceramic DIP implementation. Its 10-bit resolution and 20 µs typical conversion time support periodic measurement of slowly varying industrial signals, while the integrated reference, clock, and comparator simplify the converter subsystem. A practical implementation would connect the digital outputs to an addressable bus interface or latch and use converter-control signals for acquisition sequencing. Because the exact pinout and timing were not included in the verified snippets, layout must wait for the official datasheet.
Instrumentation and Measurement Equipment
AD573JD can serve as the ADC in laboratory or field instrumentation that digitizes conditioned analog measurements and presents the resulting 10-bit codes to a controller. The 20 µs typical successive-approximation conversion time is useful for periodic sampling rather than high-rate waveform capture, and the integrated converter functions help limit board complexity. The device's military-oriented packaging context may suit long-life or demanding equipment, but temperature limits, accuracy, power dissipation, and environmental qualification must be confirmed before treating it as a design standard.
Embedded Control Systems
AD573JD can provide the analog measurement front end for an embedded controller that must monitor pressure, temperature, position, or another conditioned analog quantity. Its parallel output can feed a microprocessor data bus more directly than a serial-interface ADC, while the 20 µs typical conversion time supports supervisory control loops with modest sampling demands. A practical design should buffer high-impedance sensor sources as required, isolate noisy digital return paths, and provide local decoupling. The +5 V and -12 V or -15 V supply arrangement must be included in the system power plan.
Legacy Avionics and Military Systems
AD573JD is relevant to legacy avionics, instrumentation, and military-system applications because the manufacturer identifies a MIL-STD-883-compliant version of the AD573 family and the AD573JD ordering option uses a hermetically sealed ceramic DIP package. Its 10-bit SAR conversion and 20 µs typical timing suit controlled measurement channels rather than modern high-speed waveform acquisition. The exact AD573JD temperature grade, screening status, radiation or reliability requirements, and qualification documentation must be obtained before treating it as suitable for a new safety-critical program.
بيانات مرجعية هندسية لـ AD573JD — المقارنة وإرشادات التصميم ومعلومات الامتثال.
دليل الاختيار
المقارنة مع البدائل
| المعامل | هذا المنتج |
|---|---|
| Package | 20-pin hermetically sealed ceramic DIP |
| Brand | Analog Devices |
| Resolution | 10 bit |
| Converter Architecture | Successive-approximation register (SAR) |
| Typical Conversion Time | 20 µs |
| Positive Supply | +5 V |
| Negative Supply | -12 V or -15 V |
| Digital Interface | Full or 16-bit microprocessor-bus compatible parallel output |
| Integrated Functions | Reference, clock, and comparator |
| External Components for Conversion | None required |
أبرز الفروقات
- Complete converter integration (مقابلDiscrete reference, clock, and comparator implementation)
- Parallel microprocessor-bus compatibility (مقابلSerial-interface ADC architecture)
- Hermetically sealed ceramic-DIP implementation (مقابلAD573 family options in plastic DIP or leaded chip carrier)
- Documented no-missing-codes behavior (مقابلAD573JN and AD573KNZ comparison candidates)
ملاحظات التصميم
Design the AD573JD supply rails around its verified +5 V and -12 V or -15 V operating requirement. Place stable, low-inductance bypass capacitors close to the device's power and ground pins, and keep return currents from digital outputs away from the analog input and comparator paths. The negative rail must remain within its specified operating range during startup, shutdown, and load transients; the complete decoupling and supply-sequence requirements should be taken from the manufacturer datasheet.
Route the analog input directly to the converter with a short, guarded trace and keep switching nodes and digital-bus return currents away from it. Use a quiet ground strategy and place input conditioning, reference bypass, and power bypass close to their associated device pins. Because the verified snippets do not provide the complete pinout or recommended-layout artwork, these practices should be refined against the official Analog Devices datasheet before PCB release.
Do not infer electrical or pin compatibility from an AD573-family comparison listing alone. The AD573JD includes a hermetically sealed ceramic DIP configuration, while related AD573 order codes may use plastic DIP or leaded chip-carrier packages with different temperature grades. Before substituting any part, compare the physical footprint, terminal names, analog input range, logic levels, acquisition timing, clocking, control polarity, supply tolerances, and operating-temperature limits against the original AD573JD datasheet.
معلومات الامتثال
The Analog Devices product page states that the AD573 is available in a version compliant with MIL-STD-883 and refers users to the Military Products Databook or current /883B datasheet. RoHS, REACH, lead-free, halogen-free, and conflict-minerals status were not included in the verified data and remain unknown.
