AD573SD - 10-Bit 20 us SAR ADC, 20-CDIP | Analog Devices
부품 번호: AD573SD ✗ 단종| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
AD573SD 개요
An ADC converts an analog input voltage into a digital code for measurement, control, instrumentation, and industrial signal-processing systems. The AD573 belongs to the SAR ADC family: a successive-approximation register controls an internal DAC while a comparator tests successive bit decisions. SAR converters are useful when a compact, deterministic conversion process and direct digital output are preferred over continuous delta-sigma modulation. The integrated reference, clock, comparator, and output buffers reduce external circuitry and simplify system implementation.
The main verified features include 10-bit resolution, no missing codes over temperature, full or 16-bit microprocessor bus-interface capability, fast successive-approximation conversion with 20 us typical timing, operation from +5 V and -15 V supplies, and monolithic construction. The integrated design can reduce board area and assembly complexity. The parallel three-state outputs are useful when the ADC must share a processor data bus or interface directly with digital control logic.
The AD573SD is suitable for industrial process measurement, data acquisition, instrumentation, test equipment, and legacy control systems requiring a deterministic parallel ADC. A 20-CDIP package provides through-hole mechanical compatibility for systems designed around ceramic DIP footprints, but it is not interchangeable with a surface-mount package without a PCB change. Supply arrangement, signal conditioning, grounding, and digital-bus timing remain important design considerations.
For a new design, use the AD573SD when its 10-bit SAR architecture, integrated functions, parallel interface, and 20-CDIP footprint are specifically required. For higher resolution, different supply architecture, or surface-mount assembly, select a newer ADC whose electrical and pin requirements have been verified. This product page synthesizes verified manufacturer and distributor information, application guidance, and compatibility cautions; missing electrical values are explicitly marked rather than estimated.
드롭인 대체품: AD573SD — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
이 제품에는 사용 가능한 드롭인 대체품이 없습니다.
대체품 요청AD573SD 최대 정격 & 전기적 특성
| 분해능 | 10 bit |
| Converter Type | Successive Approximation (SAR) |
| Conversion Time | 20 us typical |
| Analog Input Count | 1 input |
| Output Interface | Parallel, three-state outputs |
| Microprocessor Interface | Full or 16-bit microprocessor bus interface |
| Positive Supply | +5 V |
| Negative Supply Options | -12 V or -15 V |
| Integrated Functions | DAC, voltage reference, clock, comparator, successive-approximation register, and three-state output buffers |
| Missing Codes | No missing codes over temperature |
| 패키지 | 20-pin ceramic DIP (20-CDIP) |
| Package Type | Through-hole ceramic DIP |
| Construction | Monolithic |
| External Components Required | None required for a full-accuracy 10-bit conversion |
AD573SD through-hole ceramic dip 핀 구성 가이드
AD573SD(through-hole ceramic dip 패키지)의 핀 구성입니다. 이 아날로그 부품에는 입력, 출력, 전원 공급 핀이 있습니다. 오프셋 널, 보상, 인에이블 핀 구성은 제조사 데이터시트를 참조하십시오. 신호 컨디셔닝 및 증폭기 회로에 이상적입니다.
다음에 대한 상세 핀아웃 데이터 없음: AD573SD.
다음을 참조하십시오: 데이터시트 전체 핀 구성은 다음을 참조하십시오.
일반적인 애플리케이션
AD573SD 적합 용도: 6 애플리케이션s: Industrial Process Measurement, Data-Acquisition Interface, Laboratory Instrumentation, Legacy Control Systems, Educational Electronics, Instrumentation Retrofit.
Industrial Process Measurement
The AD573SD fits legacy industrial measurement systems that need deterministic 10-bit sampling, parallel data transfer, and a ceramic through-hole package. Its integrated DAC, voltage reference, clock, comparator, SAR register, and three-state buffers reduce the number of external support components. The 20 us typical conversion is suitable for many process-control loops where a faster converter is not required. Designers should preserve the verified +5 V and -12 V or -15 V supply arrangement and follow the manufacturer’s analog grounding recommendations.
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Data-Acquisition Interface
Use the AD573SD when a data-acquisition card must acquire one analog channel and present the result through a processor data bus. Its full or 16-bit microprocessor bus interface and three-state output buffers support bus-oriented digital designs, while the integrated reference and clock reduce support circuitry. The 10-bit conversion result provides 1,024 codes, and the 20 us typical conversion rate supports moderate-speed acquisition. Validate bus timing, output coding, and input acquisition behavior against the Analog Devices datasheet.
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Laboratory Instrumentation
The AD573SD is appropriate for laboratory instruments and legacy test equipment that require a stable, integrated 10-bit conversion function rather than the very high resolution or small surface-mount package of newer converters. Its 20-CDIP format is useful for through-hole instrument construction, repair, and modular insertion. The analog front end should provide suitable input conditioning and grounding, while the digital side should account for the converter's three-state outputs and specified bus interface.
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Legacy Control Systems
The AD573SD can serve as the measurement front end in older embedded control equipment that uses a parallel ADC and through-hole ceramic DIP construction. Its 10-bit SAR architecture offers a straightforward digital code output, and the integrated converter functions help limit support-component count. The dual supply arrangement must be retained or deliberately redesigned, and the input signal must remain within the converter's specified range. This application is best suited to maintenance and legacy-product designs rather than unrestricted new-platform development.
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Educational Electronics
AD573SD is useful in educational ADC experiments because it combines a DAC, voltage reference, clock, comparator, SAR register, and output buffers in one converter. Students can observe how a successive-approximation converter produces a digital result and how parallel output signals connect to a processor bus. The 20-CDIP package is mechanically accessible for through-hole teaching boards. Because the device uses +5 V with a negative supply, laboratory supplies and logic-level interfacing must be wired carefully.
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Instrumentation Retrofit
For retrofitting an older analyzer or controller, the AD573SD provides a path to preserve a 20-CDIP footprint and existing parallel-bus architecture. Its integrated clock and reference are particularly useful when replacing discrete converter circuitry, while the 20 us typical conversion time supports continuous panel-meter or process-monitor updates. Before installation, verify the original device's pinout, supply sequencing, input range, and output coding. A modern ADC is generally preferable when PCB area or supply complexity is no longer constrained.
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추천 제품 요약
엔지니어링 참조 데이터: AD573SD — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 |
|---|---|
| Package | 20-CDIP |
| Brand | Analog Devices |
| Resolution | 10 bit |
| Converter Architecture | Successive Approximation (SAR) |
| Conversion Time | 20 us typical |
| Positive Supply | +5 V |
| Negative Supply Options | -12 V or -15 V |
| Interface | Parallel microprocessor bus interface |
주요 차별점
- Complete converter integration (vs Discrete or partially integrated legacy ADC circuit)
- Deterministic 10-bit SAR conversion (vs Delta-sigma or higher-resolution legacy ADC)
- Legacy-compatible 20-CDIP construction (vs Surface-mount ADC)
설계 노트
The AD573SD requires the manufacturer-specified +5 V and negative supply arrangement. Place bypass capacitors close to the supply pins and keep the analog return path low impedance. Because the converter combines reference, clock, DAC, comparator, and output functions in one monolithic device, supply disturbance can appear directly in the conversion result. Confirm exact capacitor values and sequencing requirements from the Analog Devices datasheet rather than inferring them from generic ADC layouts.
The AD573SD is a 20-CDIP through-hole device, so a replacement or retrofit must match the ceramic DIP footprint and pin numbering. Keep analog input routing short and away from digital clock and bus traces. Provide a quiet ground connection near the converter and route high-current return paths separately. If redesigning the assembly, verify lead spacing, insertion orientation, and thermal clearance before committing to a board layout.
Do not substitute a converter merely because it has 10-bit resolution. A valid replacement must also match the 20-CDIP package, supply rails, output coding, bus interface, conversion timing, input range, and timing requirements. The supplied web results mention AD573KN as a comparison candidate but do not verify it as a pin-compatible substitute. Obtain the complete manufacturer data before treating any related AD573 suffix as a drop-in replacement.
규정 준수 정보
The supplied verified data does not state compliance or environmental-material status for AD573SD. Obtain current documentation from Analog Devices before regulated use.
