AW86872QNR

14Bit,200Ksps,Low-power AFE with I2C Interface

产品手册 :

在线预览 - AW86872QNR-英语版 - 产品手册

参考价格：

1-99￥9.33
100-249￥7.65
250-499￥6.16
500-999￥4.85
1000+￥3.73

产品详细信息

PGA	1~256
INTN/GPIO	2
Watch Dog	YES
MCU	/
DAC (bit)	12
CTRL IF	I²C
Low Power Mode	YES
Channel	2
Temperature	-40℃~105℃
Package (mm)	QFN 3X3-16L
ADC (bit)	14

QFN 3X3-16L

2 analog input differential channel Selectable Gains of 1,8,16, 32, 64, 128, 256 150K/200K SPS 14-bit SAR ADC 12-bit offset calibration DAC Ultra-low PGA noise Support 400KHz/1MHz I²C Support 1.2V/1.8V/3.3V I²C 1 smart watch dog timer(SWDT) Support Temperature Sense Up to 2 INTN OD output pins Up to 2 PWM output pins Power-on reset Low power-consumption mode Built-in digital filter Built-in baseline-tracking algorithm for force touch Optional application mode (upload AFE data / report press pulse)

AW8687x is an AFE chip that can be used to collect, amplify, and process voltage signals. It integrated 1 I²C module, 1 system control module, 1 power management module and 1 AFE module (Include level 2 PGA, 12-bit offset calibration DAC, 14-bit SAR ADC). From the number of pins, there are two types of AW8687x. AW86872 can measures two pairs of differential analog inputs (AINP, AINN) in direct connection or buffered through the PGA. AW86874 can measures four pairs of differential analog inputs (AINP, AINN) in direct connection or buffered through the PGA. AW8687x can enter low power consumption mode automatically without the master participation and trigger AFE work through SWDT wake-up to sample and process the signal. AW8687x can be used for force touch. We provide users with baseline tracking and pressure recognition modules to facilitate the identification of pressing force and signals. Interrupt signals such as sampling completion, threshold comparison and press event trigger can be configured to output through interrupt pin. The number of channels and package type of AW8687x series chips are as folows. Chip Chip ID Channel Package AW86874CSR 0x74 4 WLCSP 1.41mmX1.41mmX0.34mm-16B AW86872CSR 0x72 2 WLCSP 1.41mmX1.41mmX0.34mm-16B AW86872QNR 0x72 2 WBQFN3mmX3mmX0.75mm-16L

技术文档

类型	项目标题	语言	日期
产品设计指南	AW8687X Software Design Guide	中文	2024-04-30
产品设计指南	AW8687X Software Design Guide	英文	2024-04-30
产品设计指南	AW8687X 硬件设计指南	中文	2024-11-12
产品手册	DS_AW8687x_EN_V1.2	英文	2025-03-21
Checklist	CL_客户_项目_AW8687x_Customer_CN_V1.0	中文	2026-02-02
应用方案	【应用方案】告别“盲刷”：艾为压力感应方案让电动牙刷实现“力度自由”	中文	2025-10-28