AD7768-1BCPZ - 24-Bit 1.024 MSPS Sigma-Delta ADC | Analog Devices
부품 번호: AD7768-1BCPZ ✓ 활성| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
AD7768-1BCPZ 개요
A sigma-delta ADC is a data-converter type that uses oversampling, noise shaping, and digital filtering to obtain high-resolution results from low-resolution internal converters. In the broader electronics hierarchy, a sigma-delta ADC belongs to the ADC/DAC category, then to precision data converters, analog-to-digital converters, and ultimately semiconductor signal-processing devices. Its strengths are high resolution and strong performance for slowly changing or bandwidth-limited signals; its trade-offs include latency and a conversion rate determined by the digital filter and output-data-rate settings.
The AD7768-1 is the single-channel member of the AD7768 family. Analog Devices describes it as a precision 24-bit ADC for precision conversion of AC and DC signals. The verified distributor data specifies a 1.024 MSPS conversion capability, one analog input, one sigma-delta conversion channel, a serial interface, and a 28-LFCSP package with exposed-pad construction. These features suit instrumentation, sensor acquisition, industrial monitoring, and test systems where a filtered measurement is preferred over a high-rate flash-conversion waveform capture.
The converter’s digital filter is central to its operation. The manufacturer page identifies selectable power modes for trading output-data-rate and bandwidth against power consumption in the related AD7768 family documentation. For the AD7768-1, filtering and decimation help suppress out-of-band noise, while the serial interface transfers filtered conversion results to a controller or FPGA. System designers should verify the exact data rate, filter mode, clocking, supply arrangement, and digital timing against the manufacturer datasheet before finalizing a PCB.
Typical uses include precision bridge or sensor measurement, low-level DC voltage acquisition, laboratory instrumentation, industrial process monitoring, and embedded measurement systems. The ADC is not a general-purpose high-speed waveform ADC: input bandwidth and filter latency should be checked against the signal dynamics. A front-end amplifier, reference circuit, protection network, and suitable grounding are usually needed to preserve accuracy.
For layout, place input, reference, digital-interface, and decoupling connections according to the Analog Devices datasheet and recommended application guidance. Pay particular attention to the exposed thermal pad, analog supply routing, reference noise, and return paths. The verified data does not provide complete electrical limits, pricing, pin names, or alternate equivalent parts, so those fields are explicitly marked for validation rather than inferred.
This page combines the verified Analog Devices product description, distributor package and speed information, source traceability, and engineering-oriented selection guidance. It is intended to help engineers identify whether the AD7768-1BCPZ matches a 24-bit single-channel precision-conversion requirement before requesting quotation, checking stock, or downloading the authoritative datasheet.
드롭인 대체품: AD7768-1BCPZ — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 시리즈의 변형
다음과 드롭인 호환되는 동일 시리즈 모델: AD7768-1BCPZ (동일 폼 팩터 및 풋프린트) — 차이점: Package, Interface, Number of Channels, Power Modes.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
AD7768-1BCPZ
✅ 드롭인✓ 재고 있음
가격 문의
데이터시트 보기 →AD7768-1BSTZ
✅ 드롭인✓ 재고 있음
$13.1 / 개
데이터시트 보기 →AD7768BCPZ
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
AD7768-4BCPZ
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
AD7768-4BSTZ
✅ 드롭인✓ 재고 있음
$25.4545 / 개
데이터시트 보기 →AD7768-1BCPZ 최대 정격 & 전기적 특성
| ADC Type | Sigma-delta analog-to-digital converter |
| 분해능 | 24 bit |
| Number of Input Channels | 1 channel |
| Output Data Rate | 1.024 MSPS |
| Signal Bandwidth | 100 kHz bandwidth |
| Input Signal Support | AC and DC signals |
| Conversion Architecture | Sigma-delta modulator with digital filter |
| 인터페이스 | Serial interface |
| 패키지 | 28-LFCSP (5 mm x 4 mm) |
| Package Construction | 28-lead LFCSP with exposed pad |
| 실장 유형 | Surface mount |
| Power Mode Control | Manufacturer family documentation describes selectable power modes for bandwidth, data-rate, and power trade-offs |
| Digital Filter | Integrated digital filter |
| Precision Class | Precision measurement ADC |
| Data Transfer | Serial conversion data output |
| Channel Architecture | Single-channel version of the AD7768 family |
| Application Category | Precision data acquisition |
AD7768-1BCPZ 28-lead lfcsp with exposed pad 핀 구성 가이드
AD7768-1BCPZ(28-lead lfcsp with exposed pad 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: AD7768-1BCPZ.
다음을 참조하십시오: 데이터시트 전체 핀 구성은 다음을 참조하십시오.
일반적인 애플리케이션
AD7768-1BCPZ 적합 용도: 7 애플리케이션s: Precision Sensor Acquisition, Industrial Process Monitoring, Laboratory Instrumentation, Low-Level Voltage Measurement, Test and Measurement Equipment, Data-Acquisition Modules, Condition Monitoring.
Precision Sensor Acquisition
AD7768-1BCPZ fits precision sensor acquisition when the sensor signal is bandwidth-limited and the measurement benefits from a high-resolution sigma-delta conversion stage. Its verified 24-bit resolution and 1.024 MSPS output data rate provide digital headroom for conditioning low-level outputs from pressure, temperature, strain, and chemical sensors. The integrated digital filter can reject out-of-band noise, but the system must still provide a low-noise reference, suitable analog front end, controlled grounding, and input protection. Because this is a single-channel converter, multiplexed sensor systems may need external switching and settling time. The key design trade-off is measurement latency from digital filtering versus improved rejection of noise outside the selected bandwidth.
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Industrial Process Monitoring
AD7768-1BCPZ is suitable for industrial process monitoring when a sensor or control signal requires more resolution than a basic control ADC but does not require flash-converter speed. The 24-bit sigma-delta architecture is useful for slowly varying process variables, while the 100 kHz bandwidth listing indicates that the usable signal range must be checked against the selected filter and output rate. A transmitter interface, isolated supply, input filter, and robust grounding network can improve field reliability. The design should account for electrical noise, temperature drift, reference accuracy, and the latency needed for digital filtering before using the measured value in a closed-loop control decision.
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Laboratory Instrumentation
AD7768-1BCPZ can serve in laboratory instruments that measure DC or filtered AC signals rather than arbitrary high-frequency waveforms. Its verified 24-bit resolution and 1.024 MSPS output data rate allow a controller to retrieve detailed numeric measurements for calibration, logging, or signal analysis. The serial interface supports integration with a digital controller, while the integrated digital filter can simplify the first stage of bandwidth management. Instrument designers should characterize offset, gain error, noise density, reference behavior, settling time, and filter latency. These specifications were not fully present in the supplied excerpts, so the manufacturer datasheet should control calibration and accuracy claims.
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Low-Level Voltage Measurement
AD7768-1BCPZ is appropriate for low-level voltage acquisition when the signal is sufficiently slow or bandlimited for a sigma-delta converter and the system benefits from digital filtering. The 24-bit result format supports fine measurement resolution, but effective accuracy still depends on analog-front-end noise, reference stability, grounding, PCB leakage, and the input range. A low-offset amplifier or buffer may be needed before the ADC, while an anti-alias network should be selected according to the actual filter bandwidth. The converter should not be treated as a universal precision voltmeter without verifying input impedance, common-mode limits, excitation architecture, and calibration procedures in the datasheet.
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Test and Measurement Equipment
AD7768-1BCPZ can be integrated into test and measurement equipment that repeatedly records filtered analog values and transfers them through a serial data path. Its 1.024 MSPS output data rate is useful when the instrument needs higher resolution than a low-cost multiplexed control ADC, while the integrated digital filter helps define the measurement bandwidth. A practical design should synchronize the ADC clock, control converter latency, and separate analog and digital return currents as far as the package and system architecture allow. The exposed pad also needs a deliberate thermal strategy. Exact timing, supply, filter, and calibration details must be taken from the AD7768-1 datasheet before firmware and schematic sign-off.
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Data-Acquisition Modules
AD7768-1BCPZ is a natural fit for a compact precision data-acquisition module requiring one high-resolution analog channel. The part can convert a conditioned sensor or instrument output and provide serial data to a host processor, FPGA, or data logger. Its single-channel architecture keeps the signal path focused, but it also means that multi-channel expansion requires multiplexing and careful settling-time analysis. Designers should budget for analog filtering, reference conditioning, digital isolation where required, and PCB creepage or clearance according to the application environment. The verified source data does not establish operating-temperature, supply-voltage, or accuracy limits, so those specifications remain validation items.
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Condition Monitoring
AD7768-1BCPZ can be applied to condition-monitoring systems that digitize filtered vibration, temperature, pressure, or strain signals for trend analysis. A sigma-delta ADC is attractive when high resolution and digital noise filtering are more valuable than instantaneous waveform capture. The external signal conditioning should limit bandwidth, protect the ADC, and prevent common-mode or transient damage. Firmware must account for digital-filter delay and should label measurements with their bandwidth and settling assumptions. The 100 kHz bandwidth figure from the distributor listing should not be interpreted as an unrestricted 100 kHz analog waveform capability; the exact input bandwidth and decimation behavior require the manufacturer documentation.
추천
추천 제품 요약
엔지니어링 참조 데이터: AD7768-1BCPZ — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | AD7768-1 | AD7768BCPZ | AD7768-4BCPZ | AD7768 |
|---|---|---|---|---|---|
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Manufacturer | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
주요 차별점
- Single-channel precision conversion (vs AD7768)
- 24-bit sigma-delta resolution (vs AD7768-1)
- Integrated digital filtering (vs AD7768BCPZ)
설계 노트
Do not finalize the power tree from the distributor summary alone. The verified excerpts do not provide the AD7768-1BCPZ analog supply, digital supply, current consumption, or power-mode current table. Before schematic release, use the manufacturer datasheet to identify every supply rail, its operating range, sequencing requirement, decoupling value, and allowable power dissipation. Confirm that the source regulator has adequate headroom for the highest specified data rate and filter mode.
Treat the analog input, reference, supply, and exposed-pad networks as separate high-impedance paths. Place input filtering and decoupling components close to the relevant package pins, keep the analog return current controlled, and avoid routing digital clock or serial signals beneath sensitive input and reference areas. The verified data confirms a 28-LFCSP package but does not provide a pin table or recommended land pattern, so use the Analog Devices package drawing and layout guidance.
Do not interpret 1.024 MSPS or the 100 kHz bandwidth listing as permission to capture every waveform detail without checking the digital-filter response. Sigma-delta conversion introduces decimation and latency, and the usable measurement bandwidth depends on filter mode and output data rate. Also avoid assuming that nominal 24-bit resolution equals 24-bit effective accuracy; verify offset, gain, noise, reference, and calibration specifications in the manufacturer datasheet.
The 28-LFCSP includes an exposed pad according to the verified distributor description, but thermal requirements are not provided in the excerpts. Use the manufacturer’s exposed-pad land pattern and thermal data to define copper area, via count, and heat-sinking strategy. Estimated: actual self-heating must be calculated from the selected supply voltages, power mode, data rate, and measured or datasheet current; those inputs were not supplied, so no thermal value is estimated here.
규정 준수 정보
The supplied manufacturer and distributor excerpts do not state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status. These fields must be confirmed from current Analog Devices product documentation or the distributor compliance record.
