AD4853BCPZ - 16-Bit 4-Ch 1MSPS DAS | Analog Devices
부품 번호: AD4853BCPZ ✓ 활성| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $29.13 | $29.13 |
| 10 | $27.5 | $275.00 |
| 100 | $25 | $2,500.00 |
| 500 | $22 | $11,000.00 |
| 1,000 | $20 | $20,000.00 |
AD4853BCPZ 개요
A data acquisition system (DAS) is a complete signal chain that converts analog signals into digital data, typically integrating an ADC, input conditioning, and reference circuitry. The AD4853 is a buffered, simultaneous-sampling DAS, meaning it includes internal input buffers that eliminate the need for external op-amps and allows direct connection to sensors. It belongs to the hierarchy: DAS -> ADC -> data converter -> mixed-signal IC -> semiconductor. This integration simplifies design, reduces board space, and improves performance by minimizing external component variability.
Key features include 16-bit resolution, 1 MSPS throughput per channel, four simultaneously sampled channels, and an integrated reference. The device offers a 94.6 dB signal-to-noise ratio (SNR) and 0.2 LSB typical integral nonlinearity (INL). It supports both SPI and LVDS digital interfaces, making it versatile for high-speed data transfer. The input range is bipolar, and the device can be configured for external or built-in reference operation.
Technically, the AD4853 uses a SAR architecture with internal input buffers that provide high input impedance and low leakage, enabling direct sensor connection. The integrated reference and buffer ensure stable and accurate conversions. The device includes power scaling, reducing power consumption at lower throughputs, which is critical for battery-powered applications. The 64-ball BGA package (7x7 mm) offers a compact footprint with excellent thermal performance.
Typical applications include industrial automation, motor control, power monitoring, and medical instrumentation. In motor control, the simultaneous sampling of three-phase currents and voltages enables accurate vector control. In power monitoring, the high SNR and low leakage ensure precise measurement of voltage and current waveforms. The device's wide common-mode range and differential inputs make it suitable for shunt-based current sensing.
When designing with the AD4853, ensure proper decoupling of the analog and digital supplies, and use a low-noise reference. The integrated reference simplifies design, but for higher accuracy, an external reference can be used. The SPI interface allows easy connection to microcontrollers, while LVDS is available for high-speed data transfer over longer distances.
드롭인 대체품: AD4853BCPZ — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
AD4853BBCZ
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
AD4853BBCZ-RL-13
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
AD4853BCPZ 최대 정격 & 전기적 특성
| 분해능 | 16 bits |
| Number of Channels | 4 |
| 샘플링 속도 | 1 MSPS per channel |
| Input Type | Differential, bipolar |
| Input Leakage Current | ±75 pA typical at 25°C |
| Full-Scale Step Settling Time | < 300 ns |
| Integrated Reference | 4.096 V |
| SNR | 94.6 dB |
| INL | 0.2 LSB typical |
| Power Dissipation | 57 mW per channel at 1 MSPS |
| Analog Supply Voltage | 4.75 V to 5.25 V |
| Digital Interface | SPI, LVDS |
| 동작 온도 범위 | -40°C to +125°C |
| 패키지 | 64-BGA (7x7 mm) |
| RoHS | Compliant |
AD4853BCPZ 핀 구성
| 핀 A1 | VDD — Analog power supply (4.75V to 5.25V) |
| 핀 A2 | VIN1+ — Positive analog input channel 1 |
| 핀 A3 | VIN1- — Negative analog input channel 1 |
| 핀 A4 | VIN2+ — Positive analog input channel 2 |
| 핀 A5 | VIN2- — Negative analog input channel 2 |
| 핀 A6 | VIN3+ — Positive analog input channel 3 |
| 핀 A7 | VIN3- — Negative analog input channel 3 |
| 핀 A8 | VIN4+ — Positive analog input channel 4 |
| 핀 A9 | VIN4- — Negative analog input channel 4 |
| 핀 A10 | GND — Ground |
| 핀 B1 | VREF — Reference voltage input/output |
| 핀 B2 | REFBUF — Reference buffer output |
| 핀 B3 | AVDD — Analog supply |
| 핀 B4 | DVDD — Digital supply |
| 핀 B5 | SCLK — Serial clock input |
| 핀 B6 | SDI — Serial data input |
| 핀 B7 | SDO — Serial data output |
| 핀 B8 | CS — Chip select (active low) |
| 핀 B9 | CNV — Convert input |
| 핀 B10 | GND — Ground |
일반적인 애플리케이션
AD4853BCPZ 적합 용도: 6 애플리케이션s: Industrial Automation, Motor Control, Power Monitoring, Medical Instrumentation, Test and Measurement, Aerospace and Defense.
Industrial Automation
The AD4853BCPZ is ideal for industrial automation systems that require precise, simultaneous monitoring of multiple analog signals. Its 16-bit resolution and 1 MSPS per channel sampling rate enable accurate capture of fast-changing process variables. The integrated input buffers simplify sensor interfacing, reducing external component count. The wide common-mode range and differential inputs allow direct connection to shunt resistors and bridge sensors. The device's low input leakage (±75 pA) ensures minimal loading on sensitive sources. With a 94.6 dB SNR, it delivers high-fidelity data for control loops. The SPI interface facilitates easy integration with industrial microcontrollers, while the LVDS option supports high-speed data transfer over longer distances. The -40°C to +125°C operating range suits harsh industrial environments.
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Motor Control
In motor control applications, the AD4853BCPZ enables simultaneous sampling of three-phase currents and voltages, which is essential for accurate vector control and fault detection. The 1 MSPS per channel throughput allows real-time monitoring of fast-switching PWM signals. The integrated reference and buffers reduce external component count, saving board space. The device's high SNR (94.6 dB) ensures precise current sensing, improving torque control and efficiency. The differential inputs with wide common-mode range are ideal for shunt-based current sensing. The SPI interface connects directly to motor control DSPs or FPGAs. The power scaling feature reduces dissipation at lower sampling rates, which is beneficial for variable-speed drives. The compact 64-BGA package fits space-constrained motor drives.
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Power Monitoring
The AD4853BCPZ is well-suited for power monitoring systems that require accurate measurement of voltage and current waveforms. Its 16-bit resolution and 1 MSPS sampling rate capture harmonics up to the 50th order in 50/60 Hz systems. The simultaneous sampling of multiple channels ensures accurate phase alignment between voltage and current measurements, which is critical for power quality analysis. The integrated reference and buffers simplify the analog front-end, reducing component count and cost. The device's high SNR (94.6 dB) enables precise measurement of small signals in the presence of large common-mode voltages. The SPI interface allows easy connection to energy metering ICs or microcontrollers. The wide operating temperature range supports outdoor and industrial installations.
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Medical Instrumentation
In medical instrumentation, the AD4853BCPZ provides high-precision, simultaneous sampling for applications such as patient monitoring and diagnostic equipment. The 16-bit resolution and 94.6 dB SNR ensure accurate capture of physiological signals like ECG, EEG, and blood pressure. The low input leakage (±75 pA) minimizes loading on high-impedance sensors. The integrated reference and buffers reduce external component count, which is crucial for compact, portable devices. The device's wide common-mode range and differential inputs reject interference from other medical equipment. The SPI interface connects to medical-grade microcontrollers. The -40°C to +125°C operating range ensures reliability in clinical environments. The power scaling feature extends battery life in portable monitors.
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Test and Measurement
The AD4853BCPZ is an excellent choice for test and measurement equipment such as data acquisition cards, spectrum analyzers, and oscilloscopes. Its 1 MSPS per channel sampling rate and 16-bit resolution provide high-speed, high-resolution data capture. The simultaneous sampling of four channels enables accurate time-correlated measurements across multiple signals. The integrated reference and buffers simplify the analog front-end, reducing design complexity. The device's low input leakage and high SNR ensure accurate measurement of small signals. The SPI and LVDS interfaces offer flexibility in data transfer to FPGAs or DSPs. The compact 64-BGA package allows high-density channel integration. The wide operating temperature range supports benchtop and portable instruments.
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Aerospace and Defense
In aerospace and defense applications, the AD4853BCPZ offers high-reliability, high-precision data acquisition for avionics, radar, and electronic warfare systems. The 16-bit resolution and 1 MSPS sampling rate meet the demanding requirements of modern sensor systems. The simultaneous sampling of multiple channels is essential for phased-array radar and direction-finding systems. The integrated reference and buffers reduce component count, improving system reliability. The device's wide operating temperature range (-40°C to +125°C) and RoHS compliance make it suitable for harsh environments. The LVDS interface supports high-speed data transfer to FPGAs for real-time processing. The compact 64-BGA package is ideal for space-constrained military electronics.
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추천 제품 요약
엔지니어링 참조 데이터: AD4853BCPZ — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | AD4853BBCZ | AD4853BBCZ-RL-13 | AD7384-4BCPZ |
|---|---|---|---|---|
| Package | 64-BGA (7x7 mm) | 64-BGA (7x7 mm) | 64-BGA (7x7 mm) | LFCSP-24 |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Resolution | 16 bits | 16 bits | 16 bits | 16 bits |
| Number of Channels | 4 | 4 | 4 | 4 |
| Sampling Rate | 1 MSPS per channel | 1 MSPS per channel | 1 MSPS per channel | 4 MSPS per channel |
| Integrated Reference | Yes (4.096V) | Yes (4.096V) | Yes (4.096V) | No |
| Digital Interface | SPI, LVDS | SPI, LVDS | SPI, LVDS | SPI |
주요 차별점
- Integrated input buffers and reference (vs AD7384-4BCPZ)
- Lower power dissipation (vs AD7384-4BCPZ)
- Wide operating temperature range (vs AD7980BCPZ-RL7)
설계 노트
The AD4853BCPZ requires a clean analog supply (AVDD) of 4.75V to 5.25V and a digital supply (DVDD) typically 3.3V. Use low-dropout regulators (LDOs) with low noise and high PSRR to power AVDD. Decouple each supply pin with a 0.1uF ceramic capacitor placed as close as possible to the pin, and a 10uF bulk capacitor on the board. The integrated supply decoupling capacitors reduce external requirements, but proper layout is still critical.
For optimal performance, use a 4-layer PCB with dedicated ground and power planes. Place the AD4853BCPZ away from high-speed digital circuits to minimize noise coupling. Route analog inputs as differential pairs with controlled impedance. Keep the reference and analog input traces short and shielded. Use a solid ground plane under the device and connect the exposed pad (if any) to ground. Follow the layout guidelines in the AD4853 datasheet for best SNR.
A common mistake is driving the analog inputs with signals that exceed the common-mode range. The AD4853BCPZ supports differential inputs with a wide common-mode range, but ensure the input signals stay within the specified limits to avoid distortion. Also, do not leave the reference pin unconnected if using the internal reference; connect a 0.1uF decoupling capacitor. When using the SPI interface, ensure the serial clock is clean and free of ringing to avoid data corruption.
규정 준수 정보
RoHS compliant per JLCPCB listing. No AEC-Q100 qualification indicated. Lead-free per RoHS compliance.
