ADuC845:精密模拟微控制器：12MIPS 8052 Flash MCU + 10通道24位ADC + 12位DAC
ADuC845 MicroConverter将双路24位多通道Σ-Δ型ADC和Flash微控制器完全集成在一个芯片上。这款器件是ADI公司颇受欢迎的ADuC844和ADuC846 MicroConverter系列的多通道扩充产品，针对要求精密采集多个（最多10个）通道的工业控制、智能传感器、称重传感器和仪器仪表应用进行了优化。ADuC845采用52引脚PQFP或56引脚CSP封装，采用3 V或5 V电源，在标准工业温度范围内工作。与ADI公司的所有MicroConverter产品一样，QuickStart和QuickStart-Plus开发系统也支持这款器件。
The ADuC845 MicroConverter is a fully integrated Dual 24-bit, Multi-Channel Sigma Delta ADC and Flash microcontroller on a single chip. This device is a multi-channel extension of ADI’s popular ADuC844 and ADuC846 MicroConverter family and is optimized for applications in industrial control, smart sensors, loadcells and instrumentation that require precison acquisition of multiple (up to 10) channels.The ADuC845 is available in 52-pin PQFP or 56-pin CSP packages and operates on a 3 V or 5 V power supply over the standard industrial temperature range. Like all of ADI's MicroConverter products, the device is supported by the QuickStart and QuickStart-Plus development systems.
ADuC845 特点
- 双路24位精密Σ-Δ型ADC
- 10通道单端输入或5通道差分输入选项
- 缓冲可编程增益、自校准、24位主ADC
- 自校准、24位辅助ADC
- 两个独立的差分参考输入选项
- 片内熔断和激励电流选项
- 单通道12位轨到轨电压输出DAC
- 精密温度传感器
- 两路灵活的PWM输出
- 单周期8052内核
- 62KB在线重新编程能力
- 4KB读写存取能力
- Dual 24-Bit, Precision Sigma-Delta ADCs
- 10-Channel Single-Ended Input or 5-Channel Differential Input Options
- Buffered Programmable Gain, Self-Calibrating, 24-Bit Primary ADC
- Self Calibrating, 24-Bit Auxiliary ADC
- Two Independent, Differential Reference Inputs Options
- On-Chip, Burn-out and Excitation Current Options
- Single 12-Bit Rail-to-Rail Voltage-Output DAC
- Precision Temperature Sensor
- Two Flexible PWM Outputs
- Single Cycle 8052 Core to
- 62K-Byte In-Circuit Re-Programmable
- 4K-Byte Read/Write Accessible
ADuC845 技术指标
- Flash (kbytes): 0
- SRAM (bytes): 2304Bytes
- GPIO Pins: 34
- ADC # Channels: 10
- Other: PWM
- MCU Core: 8052 (1-clk)
- MCU Speed (MIPS): 12
ADuC845 功能框图
| 产品型号 | 产品状态 | 封装 | 引脚 | 温度范围 |
|---|---|---|---|---|
| ADuC845BCP62-3 | 量产 | 56 ld LFCSP (8x8mm) | 56 | 工业 |
| ADuC845BCP62-5 | 量产 | 56 ld LFCSP (8x8mm) | 56 | 工业 |
| ADuC845BCP8-3 | 量产 | 56 ld LFCSP (8x8mm) | 56 | 工业 |
| ADuC845BCPZ62-3 | 量产 | 56 ld LFCSP (8x8mm) | 56 | 工业 |
| ADuC845BCPZ62-5 | 量产 | 56 ld LFCSP (8x8mm) | 56 | 工业 |
| ADuC845BCPZ8-3 | 量产 | 56 ld LFCSP (8x8mm) | 56 | 工业 |
| ADuC845BCPZ8-5 | 量产 | 56 ld LFCSP (8x8mm) | 56 | 工业 |
| ADuC845BSZ62-3 | 量产 | 52 ld MQFP (13.90mm width) | 52 | 工业 |
| ADuC845BSZ62-5 | 量产 | 52 ld MQFP (13.90mm width) | 52 | 工业 |
| ADuC845BSZ8-3 | 量产 | 52 ld MQFP (13.90mm width) | 52 | 工业 |
| ADuC845BSZ8-5 | 量产 | 52 ld MQFP (13.90mm width) | 52 | 工业 |
| EVAL-ADuC-CABLE1Z | 量产 | 评估板 | - | 待定 |
| EVAL-ADuC845QSZ | 量产 | 评估板 | - | 待定 |
