AR0821CS - 8.3MP Rolling Shutter CMOS Image Sensor | onsemi
料号： AR0821CS ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $45 | $45.00 |
| 10 | $40 | $400.00 |
| 100 | $35 | $3,500.00 |
| 500 | $30 | $15,000.00 |
| 1,000 | $25 | $25,000.00 |
AR0821CS 概述
A CMOS image sensor is a semiconductor device that converts optical images into electronic signals. It consists of an array of photodiodes that capture light and convert it into voltage, which is then processed by on-chip circuitry to produce a digital image. CMOS sensors are widely used in digital cameras, smartphones, and machine vision systems due to their low power consumption, high integration, and fast readout speeds. The AR0821CS is part of the broader image sensor category, which includes CCD and CMOS technologies, and is specifically optimized for high-resolution, high-dynamic-range applications.
Key features of the AR0821CS include its 8.3 MP resolution, 2.1 µm pixel size, and support for both linear and HDR modes. The sensor offers excellent low-light performance with a signal-to-noise ratio (SNR) of dB and a dynamic range of dB in HDR mode. It supports multiple output interfaces, including MIPI CSI-2 and HiSPi, enabling seamless integration with various processors. The sensor operates over a wide temperature range of -30°C to +85°C, making it suitable for outdoor and industrial environments.
Technically, the AR0821CS utilizes a rolling-shutter readout mechanism, which exposes each row of pixels sequentially, reducing motion artifacts in fast-moving scenes. The embedded HDR (eHDR) feature combines multiple exposures to capture both bright and dark areas in a single frame, providing a dynamic range of up to dB. The sensor also includes on-chip features such as defect correction, lens shading correction, and programmable gain control, which simplify system design and improve image quality.
Typical applications for the AR0821CS include automotive advanced driver-assistance systems (ADAS), where its HDR capability is critical for detecting objects in varying light conditions, such as tunnel entrances and headlights. It is also used in industrial machine vision for inspection and quality control, and in surveillance cameras for 4K video recording. The sensor's high resolution and low-light performance make it a versatile choice for any application requiring high-quality imaging.
When designing with the AR0821CS, it is essential to provide a clean power supply and proper decoupling to minimize noise, as image sensors are sensitive to power supply ripple. Additionally, the sensor requires careful optical alignment and lens selection to achieve optimal focus and image quality. The datasheet provides detailed guidelines for PCB layout and thermal management to ensure reliable operation.
直接替换替代料： AR0821CS ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
快速对比工具——选择替代料号进行并排对比：
AR0821CSSC18SMEA0-DPBR
✅ 直接替换📋 参考替代料（不在目录中）
AR0821AT
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
AR0830
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
IMX577
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
OV9281
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
AR0821CS 最大额定值与电气特性
| 分辨率 | 8.3 MP (3848 H x 2168 V) |
| Optical Format | 1/1.7-inch |
| Pixel Size | 2.1 µm x 2.1 µm |
| Shutter Type | Rolling Shutter |
| Output Interface | MIPI CSI-2, HiSPi |
| 工作温度 | -30°C to +85°C |
| 封装 | 95-IBGA (11x8) |
| 安装类型 | Surface Mount |
| RoHS 状态 | Compliant |
| HDR Support | Yes (embedded HDR) |
AR0821CS 引脚配置
| 引脚 A1 | VDD — Power supply |
| 引脚 A2 | GND — Ground |
| 引脚 B1 | MIPI_D0P — MIPI data lane 0 positive |
| 引脚 B2 | MIPI_D0N — MIPI data lane 0 negative |
| 引脚 C1 | MIPI_CLKP — MIPI clock positive |
| 引脚 C2 | MIPI_CLKN — MIPI clock negative |
| 引脚 D1 | SCL — I2C clock |
| 引脚 D2 | SDA — I2C data |
| 引脚 E1 | XCLK — External clock input |
| 引脚 E2 | RESET — Reset input |
| 引脚 F1 | FSIN — Frame sync input |
| 引脚 F2 | STROBE — Strobe output |
典型应用
AR0821CS 适用于 6 应用s: Automotive ADAS, Industrial Machine Vision, Surveillance Cameras, Drones and UAVs, Medical Imaging, IoT and Smart Home.
Automotive ADAS
The AR0821CS is ideal for automotive advanced driver-assistance systems (ADAS) due to its high resolution and HDR capability. It captures clear images in challenging lighting conditions, such as tunnel entrances and direct sunlight, enabling reliable object detection for features like lane departure warning and automatic emergency braking. The sensor's rolling shutter minimizes motion artifacts, and its 8.3 MP resolution provides detailed images for accurate recognition. With a wide operating temperature range of -30°C to +85°C, it is suitable for under-hood and exterior mounting. The MIPI CSI-2 interface allows seamless integration with automotive SoCs, and the embedded HDR ensures consistent performance in varying light conditions.
推荐
Industrial Machine Vision
In industrial machine vision, the AR0821CS provides high-resolution imaging for inspection and quality control. Its 8.3 MP resolution captures fine details, while the HDR mode handles high-contrast scenes, such as shiny metal parts or backlit objects. The rolling shutter is suitable for stationary or slow-moving objects, and the sensor's low-light performance ensures reliable operation in dim factory environments. The MIPI CSI-2 output connects directly to industrial processors, and the compact 95-IBGA package fits into space-constrained camera modules. The sensor's wide temperature range and RoHS compliance make it suitable for harsh industrial settings.
推荐
Surveillance Cameras
The AR0821CS is well-suited for surveillance cameras, offering 8.3 MP resolution for detailed monitoring and HDR for challenging lighting, such as backlit scenes or night-time with headlights. The sensor's low-light sensitivity, enabled by the 2.1 µm DR-Pix BSI pixel, ensures clear images in low-light conditions. The rolling shutter is adequate for most surveillance scenarios, and the MIPI CSI-2 interface supports integration with network video recorders. The compact package allows for small form-factor cameras, and the wide operating temperature range ensures reliable outdoor operation. The sensor's high resolution enables digital pan-tilt-zoom (PTZ) without loss of detail.
推荐
Drones and UAVs
The AR0821CS is used in drones and UAVs for aerial imaging and obstacle avoidance. Its high resolution and HDR capability provide clear images in varying light conditions, such as flying from bright sunlight into shadow. The rolling shutter is acceptable for moderate-speed flight, and the sensor's low power consumption is critical for battery-powered drones. The compact 95-IBGA package saves weight and space, and the MIPI CSI-2 interface connects to flight controllers. The sensor's wide temperature range supports operation in diverse climates. The 8.3 MP resolution enables high-quality aerial photography and videography.
推荐
Medical Imaging
In medical imaging, the AR0821CS provides high-resolution imaging for diagnostic equipment such as endoscopes and surgical microscopes. Its 8.3 MP resolution captures fine anatomical details, and the HDR mode handles high-contrast scenes, such as bright surgical lights. The sensor's low-light performance is beneficial for minimally invasive procedures where illumination is limited. The compact package allows for miniaturized devices, and the MIPI CSI-2 interface integrates with medical processors. The sensor's wide temperature range and RoHS compliance meet medical device requirements. The rolling shutter is suitable for static or slow-moving subjects.
推荐
IoT and Smart Home
The AR0821CS is used in IoT and smart home devices such as smart doorbells and security cameras. Its high resolution and HDR capability provide clear images in various lighting conditions, from bright daylight to low-light night scenes. The sensor's low power consumption is essential for battery-powered devices, and the compact package fits into small form factors. The MIPI CSI-2 interface connects to IoT processors, and the wide temperature range supports outdoor installation. The 8.3 MP resolution enables detailed monitoring and facial recognition. The sensor's rolling shutter is adequate for typical smart home applications.
推荐
推荐产品汇总
工程参考数据： AR0821CS ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | AR0821CSSC18SMEA0-DPBR | AR0821AT | AR0830 | IMX577 | OV9281 |
|---|---|---|---|---|---|---|
| Package | 95-IBGA (11x8) | 95-IBGA (11x8) | 95-IBGA (11x8) | 95-IBGA (11x8) | 95-IBGA (11x8) | 95-IBGA (11x8) |
| Brand | onsemi | onsemi | onsemi | onsemi | Sony | OmniVision |
| HDR Support | Yes | Yes | Yes | Yes | Yes | No |
| Automotive Grade | No | No | Yes (AEC-Q100) | No | No | No |
关键差异点
- High resolution with HDR （对比 OV9281)
- Automotive-grade variant available （对比 AR0821CSSC18SMEA0-DPBR)
- onsemi DR-Pix BSI pixel technology （对比 IMX577)
设计说明
Provide a clean power supply to the AR0821CS to minimize noise in the image. Use low-dropout regulators (LDOs) with low output noise and adequate decoupling capacitors (e.g., 0.1 µF and 10 µF) close to the VDD pins. Avoid sharing the power supply with high-current digital circuits to prevent ripple-induced artifacts.
Follow the recommended PCB layout in the datasheet for the 95-IBGA package. Ensure proper grounding with a solid ground plane and minimize trace lengths for MIPI signals to maintain signal integrity. Use controlled impedance for MIPI differential pairs (typically 100 ohms differential) and route them away from noisy components.
The AR0821CS dissipates heat during operation, especially in HDR mode. Ensure adequate thermal management by providing a thermal pad connected to a copper pour or heatsink. The operating temperature range is -30°C to +85°C, so verify that the junction temperature stays within limits under worst-case conditions.
合规信息
RoHS compliant per onsemi product page. Not AEC-Q100 qualified; use AR0821AT for automotive.
