DATA SHEET
具有 ±1V 双极输入和 2.5V 基准电压输出的 AMC1035-Q1 Δ-Σ 调制器
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1 特性
3 说明
AMC1035-Q1是一款精密 Δ-Σ 调制器，可在 3.0V 至 5.5V 单电源下运行，并具有外部供电的 9MHz 至 21MHz 时钟信号。在曼彻斯特模式下，额定时钟范围为 9MHz 至 11MHz。该器件的差分 ±1V 输入结构针对电压和温度检测 渲染进行了优化。
AMC1035-Q1 可选择曼彻斯特编码式输出位流，这样便无需考虑接收器件的设置和保留时间要求，并可减少总体电路布局工作。当用于与数字滤波器（例如集成到 TMS320F28004x、TMS320F2807x 或 TMS320F2837x 微控制器系列中）一起抽取输出位流时，该器件可在 82 kSPS 的数据速率下实现具有 87dB 动态范围的 16 位分辨率。
AMC1035-Q1 的内部基准资源支持比例电路架构，可最大限度降低电源电压变化和温漂对测量精度的负面影响。
AMC1035-Q1 还可用于与数字隔离器和隔离式电源一起进行共模交流电压检测。
器件信息(1)
| 器件型号 | 封装 | 封装尺寸（标称值） |
|---|---|---|
| AMC1035-Q1 | SOIC (8) | 4.90mm × 3.90mm |
- 如需了解所有可用封装，请参阅产品说明书末尾的可订购产品附录。
Device Images
应用示例
5 Pin Configuration and Functions
D Package
8-Pin SOIC
Top View
Pin Functions
| PIN | I/O | DESCRIPTION | |
|---|---|---|---|
| NO. | NAME | ||
| 1 | MCE | I | Manchester coding enabled, active high, with internal pulldown resistor (typical value: 200 kΩ).
The polarity of this signal must not be changed when the clock signal is applied. |
| 2 | AINP | I | Noninverting analog input. |
| 3 | AINN | I | Inverting analog input. |
| 4 | REFOUT | O | Reference output: 2.5 V nominal, maximum ±5-mA sink and source capability. |
| 5 | GND | — | Ground reference. |
| 6 | DOUT | O | Modulator bitstream data output, updated with the rising edge of the clock signal present on CLKIN.
This pin is a Manchester coded output if MCE is pulled high. Use the rising edge of the clock to latch the modulator bitstream at the input of the digital filter device. |
| 7 | CLKIN | I | Modulator clock input: 9 MHz to 21 MHz with an internal pulldown resistor (typical value: 200 kΩ).
The clock signal must be applied continuously for proper device operation; see the Clock Input section for additional details. |
| 8 | VDD | — | Power supply, 3.0 V to 5.5 V.
See the Power Supply Recommendations section for decoupling recommendations. |
6 Specifications
6.1 Absolute Maximum Ratings
see(1)| PARAMETER | MIN | MAX | UNIT | |
|---|---|---|---|---|
| Supply voltage | VDD to GND | –0.3 | 7 | V |
| Analog input voltage | At AINP or AINN | GND – 5 | VDD + 0.5 | V |
| Analog output voltage | At REFOUT | GND – 0.5 | VDD + 0.5 | V |
| Digital input voltage | At CLKIN or MCE | GND – 0.5 | VDD + 0.5 | V |
| Digital output voltage | At DOUT | GND – 0.5 | VDD + 0.5 | V |
| Input current | Any pin except supply pins | –10 | 10 | mA |
| Temperature | Maximum virtual junction, TJ | 150 | °C | |
| Storage, Tstg | –65 | 150 | ||
(1) Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, and do not imply functional operation of the device at these or any other conditions beyond those indicated under Table 1. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
