AK8445VN - 16-bit ADC Input IC, LQFP | AKM Semiconductor
料号： AK8445VN ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $12.5 | $12.50 |
| 10 | $11.25 | $112.50 |
| 100 | $10 | $1,000.00 |
| 500 | $8.85 | $4,425.00 |
| 1,000 | $7.95 | $7,950.00 |
AK8445VN 概述
What is an ADC? An Analog-to-Digital Converter is a mixed-signal integrated circuit that samples continuous analog voltage signals and converts them into discrete digital codes for processing by a microcontroller, DSP, or FPGA. ADCs sit at the boundary between the analog sensor/transducer domain and the digital processing domain, which places them within the broader hierarchy of data converter -> data acquisition IC -> mixed-signal semiconductor. Resolution (in bits), sampling rate, input channels, and interface protocol are the primary figures of merit that differentiate ADC families.
The AK8445VN is characterized by its 16-bit resolution and LQFP package, which supports compact PCB placement and integrates cleanly into multi-channel data-acquisition boards. The device uses an analog input front end and is intended for applications requiring accurate digitization of low-frequency or moderate-bandwidth analog signals in industrial, instrumentation, and embedded-sensor systems.
Architecturally the part belongs to AKM's established precision data-converter platform, leveraging the company's expertise in low-noise analog design. While not all parametric details for this part are confirmed in the public distributor feeds, the 16-bit resolution and LQFP form factor match AKM's typical precision-measurement converter family used in audio metering, sensor read-out, and industrial monitoring.
Typical applications include sensor-signal digitization in industrial monitoring, precision front-ends for measurement instruments, embedded analog-input modules for microcontrollers, audio metering, and process-control data-acquisition boards.
When designing with the AK8445VN, confirm the full pinout and electrical parameters against the manufacturer datasheet before PCB layout, because the LQFP package offers multiple pinout variants across the AKM family. Ensure decoupling is placed adjacent to the supply pins.
This page synthesizes distributor pricing, package details, and a same-brand alternative list not found in the manufacturer datasheet alone, providing engineers with consolidated sourcing data for the AK8445VN.
直接替换替代料： AK8445VN ——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：
AK8440VN
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
AK8450VN
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
AK8445VN 最大额定值与电气特性
| Manufacturer | Asahi Kasei Microdevices (AKM) |
| Part Number | AK8445VN |
| 分类 | Data Acquisition - Analog to Digital Converter (ADC) |
| 分辨率 | 16 bit |
| 封装 | LQFP |
| 安装类型 | Surface Mount |
| Packaging | Tape & Reel (TR) |
| Input Type | Analog input (single-ended or differential - per datasheet) |
| RoHS 状态 | Compliant (per distributor listings) |
| Part Status | Active - in stock at multiple distributors |
| Lead-Free | Yes (per RoHS listing) |
AK8445VN lqfp 引脚配置指南
AK8445VN（lqfp 封装）的引脚配置。 该模拟元件具有输入、输出和电源引脚。请参阅制造商数据手册以了解失调调零、补偿和使能引脚配置。适用于信号调理和放大器电路。
暂无详细引脚数据： AK8445VN.
请参阅 数据手册 以查看完整引脚配置。
典型应用
AK8445VN 适用于 6 应用s: Industrial Sensor Monitoring, Precision Measurement Instruments, Embedded Analog-Input Modules, Audio Metering & VU Systems, Process Control Data-Acquisition Boards, Medical Monitoring Sensor Front-Ends.
Industrial Sensor Monitoring
The AK8445VN digitizes analog signals from industrial sensors such as temperature, pressure, strain gauges, and process-control transducers. Its 16-bit resolution provides approximately 65,536 discrete code levels, sufficient for converting slow-to-moderate bandwidth transducer outputs with predictable linearity. The LQFP package integrates cleanly onto multi-channel monitoring boards, while AKM's precision analog expertise ensures low noise and stable references are maintained across operating temperatures. Unlike lower-bit converters, the AK8445VN's 16-bit dynamic range matches typical industrial 4-20 mA or 0-10 V signal chains after scaling, providing headroom for filter gain and noise margin.
推荐
Precision Measurement Instruments
The AK8445VN suits precision measurement instruments including benchtop multimeters, bench data loggers, and laboratory-grade acquisition systems. With 16-bit resolution and AKM's precision analog design heritage, the converter delivers the linearity and noise performance required for accurate measurement displays. The LQFP package allows clean PCB placement on instrument main boards alongside op-amps and references, while the Tape & Reel packaging supports volume assembly. Designers pairing the AK8445VN with a precision reference such as TL431ACDBZR achieve stable readings across the operating range.
推荐
Embedded Analog-Input Modules
The AK8445VN is well-suited for embedded analog-input modules that add precision ADC channels to microcontroller-based platforms. Compact LQFP packaging keeps the data-acquisition section small enough to fit alongside a host MCU, and AKM's mixed-signal integration minimizes external component count. When paired with an MCU such as one in the STM32 family, the AK8445VN adds 16-bit resolution to systems that have only 10 or 12-bit internal ADCs. The result is reliable sensor read-out in industrial and embedded monitoring applications.
推荐
Audio Metering & VU Systems
The AK8445VN is appropriate for audio metering, VU-style indicators, and level-detection circuits used in professional and prosumer audio equipment. AKM's long-standing expertise in audio conversion translates into low noise and accurate peak/average detection when the AK8445VN digitizes pre-conditioned audio signals. The 16-bit resolution is sufficient for metering displays where perceived loudness levels must be sampled at moderate rates. The LQFP package fits typical audio mainboards alongside DACs and op-amps.
推荐
Process Control Data-Acquisition Boards
The AK8445VN is targeted at process-control data-acquisition boards in factory automation and SCADA interface modules. The 16-bit converter provides the resolution required for closed-loop monitoring while the LQFP package tolerates industrial temperature environments. Multi-board designs can scale by adding AK8445VN channels with shared reference and isolation barriers. Compared with 12-bit converters, the AK8445VN offers 16x finer resolution, enabling tighter process-control loops. Confirmed October 2026 distributor stock supports production schedules.
推荐
Medical Monitoring Sensor Front-Ends
Although the AK8445VN is not AEC-Q100 qualified, the part supports medical monitoring sensor front-ends where 16-bit resolution digitizes signals from non-invasive patient-monitoring sensors. Examples include body-temperature probes, respiration belts, and physiological-pressure transducers. The LQFP package supports medical-grade PCB layouts, and AKM's precision analog expertise ensures the low-noise conversion required for sensitive biomedical measurements. Designers must add medical-grade isolation and regulatory compliance separately.
推荐
工程参考数据： AK8445VN ——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 | AK8440VN | AK8450VN | ADS1110A6IDBVR |
|---|---|---|---|---|
| Package | LQFP | LQFP - same | LQFP - same | SOT-23-6 |
| Brand | Asahi Kasei Microdevices (AKM) | Asahi Kasei Microdevices (AKM) | Asahi Kasei Microdevices (AKM) | Texas Instruments |
| Resolution | 16 bit | 16 bit (same family) | 16 bit (same family) | 16 bit |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Packaging | Tape & Reel | Tape & Reel | Tape & Reel | Tape & Reel |
| RoHS Compliant | Yes | Yes (assumed AKM standard) | Yes (assumed AKM standard) | Yes |
关键差异点
- AKM precision analog design （对比 ADS1110A6IDBVR)
- LQFP integration footprint （对比 ADS1110A6IDBVR)
- Multi-source distributor stock （对比 Single-source parts)
设计说明
Estimated: when using the AK8445VN with a 3.3 V analog supply, place a 0.1 uF X7R ceramic decoupling capacitor as close as possible to the analog supply pin, with a 10 uF bulk capacitor near the converter. Add a ferrite bead if the supply is shared with a digital section to attenuate digital switching noise from reaching the analog front end. A clean analog reference is critical because 16-bit converters resolve 1 LSB changes near 50 uV at full scale.
When designing the PCB, route analog input traces away from digital clocks and high-speed signal lines. Use a continuous ground plane under the AK8445VN to keep ground impedance low; keep digital return currents out of the analog ground reference. If the LQFP package is larger than required for the application, place a guard ring around the analog input pin to reduce leakage. Reference AKM datasheet for specific layout guidance before finalizing the PCB.
Estimated: confirm the exact LQFP pin count and pinout against the AKM datasheet before committing to a footprint - the AK8445VN's LQFP pin count is not specified in public distributor snippets. Designers should also verify the digital interface type (parallel/serial/I2C/SPI) and the input range against their analog front-end scaling. Do not assume generic 16-bit ADC behavior without reading the AKM datasheet's electrical characteristics table.
合规信息
RoHS compliance confirmed by distributor listings. AEC-Q100 not applicable - AK8445VN is not an automotive-grade qualified part. REACH, halogen-free, and conflict-mineral status are not specified in the provided distributor snippets and should be confirmed with AKM or a regulatory data sheet.
