MAX152CPP+ - 8-Bit 400 kSPS ADC | Analog Devices
부품 번호: MAX152CPP+ ✓ 활성MAX152CPP+ 개요
An ADC is an analog-to-digital converter, a data-conversion IC that samples a continuous voltage and represents it as a digital value. Within the conversion hierarchy, the MAX152CPP+ is a parallel-output ADC: an 8-bit flash architecture converts the sampled input directly, providing 256 possible codes. A parallel ADC belongs to the data-converter and signal-processing semiconductor category and is commonly used when digital data can be captured directly by a microcontroller, logic device, or memory.
The MAX152CPP+ combines an 8-bit resolution with a 400 kSPS throughput rate, making it suitable for sampled control and monitoring loops that require faster updates than a slow sensor interface. Its internal track-and-hold circuit simplifies acquisition of changing input voltages, and the absence of an external reference reduces the number of required support components. The 20-pin PDIP package also facilitates straightforward through-hole prototyping and inspection.
Its low-power behavior supports both active acquisition and intermittent operation. At 1.5 mA during operation, the converter is appropriate for compact battery-powered and portable systems that can place it into the 1 microamp power-down state between conversions. Power-up in 900 ns allows the system to resume acquisition quickly after enabling the device, although the host circuitry must still allow sufficient settling time before sampling the conversion result.
Typical uses include industrial process monitoring, portable instrumentation, battery-powered sensing, consumer control, and low-speed data acquisition. The 300 kHz full-power bandwidth makes the ADC suitable for input signals below the converter's Nyquist frequency for its 400 kSPS sampling rate. Digital filtering may still be required if the input contains noise near the sampling or aliasing boundaries.
The main design consideration is analog signal conditioning. The input must remain within the device's allowed analog range, and the source impedance should be compatible with the internal sample-and-hold network. Keep the analog trace short, provide a stable reference derived from the internal reference arrangement, and use suitable bypass capacitance near the supply pins according to the manufacturer datasheet.
This page consolidates the verified conversion rate, power data, packaging information, sourcing links, application guidance, and engineering considerations for the MAX152CPP+. It also distinguishes verified drop-in alternatives from merely similar components, helping engineers avoid footprint or logic incompatibilities.
드롭인 대체품: MAX152CPP+ — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 시리즈의 변형
다음과 드롭인 호환되는 동일 시리즈 모델: MAX152CPP+ (동일 폼 팩터 및 풋프린트) — 차이점: Conversion Time, Operating Supply Current, Package, Resolution.
이 제품에는 사용 가능한 드롭인 대체품이 없습니다.
대체품 요청MAX152CPP+ 최대 정격 & 전기적 특성
| Converter Type | 8-bit flash analog-to-digital converter |
| Input Channels | 1 analog input |
| 분해능 | 8 bits |
| Conversion Throughput | 400 kSPS |
| Conversion Time | 1.8 microseconds |
| 공급 전압 | Single supply up to +3.6 V |
| Full-Power Bandwidth | 300 kHz |
| Sample-and-Hold | Internal track-and-hold |
| External Reference Requirement | No external reference required |
| Operating Supply Current | 1.5 mA |
| Power-Down Supply Current | 1 microamp |
| Power-Up Time | 900 ns |
| Output Interface | 8-bit parallel |
| 패키지 | 20-pin PDIP, 0.300 inch (7.62 mm) |
| 실장 유형 | Through-hole |
MAX152CPP+ 20-pin pdip, 0.300 inch (7.62 mm) 핀 구성 가이드
MAX152CPP+(20-pin pdip, 0.300 inch (7.62 mm) 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: MAX152CPP+.
다음을 참조하십시오: 데이터시트 전체 핀 구성은 다음을 참조하십시오.
일반적인 애플리케이션
MAX152CPP+ 적합 용도: 6 애플리케이션s: Battery-Powered Sensor Measurement, Industrial Process Monitoring, Portable Laboratory Instrumentation, Consumer Control and Interface, Low-Speed Data Acquisition, Audio and Communication Control Loops.
Battery-Powered Sensor Measurement
The MAX152CPP+ fits duty-cycled battery-powered sensor acquisition because it combines 8-bit resolution with a 400 kSPS maximum sampling rate, 1.8 microsecond conversion time, and a 1 microamp power-down current. Place the converter behind the sensor's analog front end, enable it near the start of a measurement, acquire one or more samples, and return it to power-down between readings. The 1.5 mA operating current and 900 ns power-up time support periodic measurements, although average battery life also depends on the sensor, host controller, and signal-conditioning circuitry.
Industrial Process Monitoring
The MAX152CPP+ can serve as the ADC in a compact industrial monitoring module that samples slowly changing process signals such as temperature, pressure, or position. Its 400 kSPS throughput provides ample sampling margin for typical sensor bandwidth, while the internal track-and-hold circuit simplifies front-end acquisition. Use a protected, conditioned input network and retain the 300 kHz converter bandwidth limit when designing the analog path. For noisy plant environments, averaging or digital filtering can improve the effective quality of the 8-bit result without changing the converter.
Portable Laboratory Instrumentation
The MAX152CPP+ is useful in portable laboratory and field instrumentation where an instrument must capture a small control or sensor signal without a large converter footprint. Its 8-bit parallel output directly matches digital buses in older microprocessor and controller designs, and the 20-pin PDIP package is straightforward to assemble and inspect on a through-hole prototype. Conversion takes 1.8 microseconds and full-power bandwidth reaches 300 kHz, but the designer should still add suitable input attenuation, buffering, and filtering for the measured signal.
Consumer Control and Interface
The MAX152CPP+ can be used in a low-speed consumer-control subsystem that converts an analog setting, sensor output, or status level into an 8-bit digital value. Its 1.5 mA operating current is modest for continuously sampled circuitry, and the 1 microamp power-down mode helps when the function is only needed occasionally. The parallel output requires eight signal lines, so the application is best suited to boards where pin availability and legacy bus compatibility matter more than connector minimization or serial-interface simplicity.
Low-Speed Data Acquisition
The MAX152CPP+ supports low-speed data-acquisition functions requiring more frequent updates than a slow-resolution-only ADC. At up to 400 kSPS, it can sample rapidly varying control or waveform information while providing 256 digital output levels. The 1.8-microsecond conversion interval leaves useful acquisition headroom, but the 300 kHz full-power bandwidth constrains the usable analog bandwidth. Designers should apply anti-alias filtering and compare sampled results against the required measurement accuracy before committing to an 8-bit resolution implementation.
Audio and Communication Control Loops
The MAX152CPP+ can monitor slow control levels in audio equipment or communication interfaces, including gain-control, bias, or supply-status nodes. Its 300 kHz full-power bandwidth exceeds the bandwidth of many slow control loops, while the internal track-and-hold circuit helps isolate the sampling instant. The 8-bit output is normally sufficient for supervisory control rather than high-fidelity audio capture. The converter should not replace a dedicated audio ADC when waveform fidelity, sampling frequency, and audio-specific signal handling are primary requirements.
엔지니어링 참조 데이터: MAX152CPP+ — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 |
|---|---|
| Converter Type | 8-bit flash ADC |
| Input Channels | 1 |
| Conversion Throughput | 400 kSPS |
| Conversion Time | 1.8 microseconds |
| Full-Power Bandwidth | 300 kHz |
| Operating Supply Current | 1.5 mA |
| Power-Down Current | 1 microamp |
| Package | 20-pin PDIP, 0.300 inch (7.62 mm) |
| Brand | Analog Devices |
| Reference Requirement | No external reference required |
주요 차별점
- High conversion throughput for an 8-bit parallel ADC (vs No verified drop-in alternative in the supplied cross-reference data)
- Very low inactive current (vs No verified drop-in alternative in the supplied cross-reference data)
- Reduced analog support circuitry (vs No verified drop-in alternative in the supplied cross-reference data)
설계 노트
Keep the analog input route short and isolate it from digital output and clock activity. The MAX152CPP+ reaches 400 kSPS and has 300 kHz full-power bandwidth, so a long input trace can introduce capacitive loading, pickup, and settling errors before the internal track-and-hold acquires the voltage. Use a compact source path, a defined ground reference, and local supply bypassing. The supplied data does not specify the maximum source impedance or recommended capacitor values, so those values must be obtained from the complete manufacturer datasheet rather than guessed.
Use power-down mode when conversion activity is intermittent, but confirm that the 900 ns power-up interval is compatible with the host's acquisition sequence. The verified operating current is 1.5 mA and the power-down current is 1 microamp. Do not assume that enabling and reading the converter are complete at the same instant; allow the device and external analog network to settle according to the manufacturer timing specification. This is especially important in battery-powered loops where rapid wake-up is needed but an undersettled conversion would reduce measurement accuracy.
Do not treat an SO or SSOP version of the MAX152 family as a drop-in replacement for this PDIP-20 device, even if its converter resolution and speed are similar. A physical footprint change requires new routing or an adapter, and a different pin arrangement may also change control or interface behavior. Verify the numbered 20-pin assignments, supply pins, analog range, and output logic levels directly from the manufacturer datasheet. No specific pin-level replacement was confirmed in the supplied cross-reference data, so BOM substitutions require a deliberate engineering qualification.
규정 준수 정보
The supplied manufacturer and distributor excerpts do not provide specific RoHS, REACH, lead-free, halogen-free, or conflict-minerals declarations. AEC-Q100 is not applicable because the MAX152CPP+ is a general-purpose ADC rather than an automotive-qualified device in the supplied data.
