首页 > TI 德州仪器 > 模数转换器

ADS7881 具有 Ref 引脚的 2.7V-5.25V 数字 5V 模拟的 12 位 4MSPS 并行 ADC

ADS7881
Resolution(Bits) 12
Sample Rate (max) 4MSPS
Architecture SAR
Power Consumption(Typ)(mW) 95
SINAD(dB) 71.5
SNR(dB) 71.5
SFDR(dB) 90
DNL(Max)(+/-LSB) 1
INL(Max)(+/-LSB) 1
No Missing Codes(Bits) 12
No. of Supplies 2
Analog Voltage AV/DD(Min)(V) 4.75
Analog Voltage AV/DD(Max)(V) 5.25
Logic Voltage DV/DD(Min)(V) 2.7
Logic Voltage DV/DD(Max)(V) 5.25
Input Configuration Range Vref
Reference Mode Int and Ext
Rating Catalog
Pin/Package 48TQFP, 48VQFN
# Input Channels 1
Operating Temperature Range(°C) -40 to 85

The ADS7881 is a 12-bit 4-MSPS A-to-D converter with 2.5-V internal reference. The device includes a capacitor based SAR A/D converter with inherent sample and hold. The device offers a 12-bit parallel interface with an additional byte mode that provides easy interface with 8-bit processors. The device has a pseudo-differential input stage.

The –IN swing of ±200 mV is useful to compensate for ground voltage mismatch between the ADC and sensor and also to cancel common-mode noise. With nap mode enabled, the device operates at lower power when used at lower conversion rates. The device is available in a 48-pin TQFP package.

ADS7881 特性
ADS7881 芯片订购指南
器件 状态 温度 (oC) 价格(美元) 封装 | 引脚
ADS7881IPFBR ACTIVE -40 to 85 7.35 | 1ku TQFP (PFB) | 48
ADS7881IPFBRG4 ACTIVE -40 to 85 7.35 | 1ku TQFP (PFB) | 48
ADS7881IPFBT ACTIVE -40 to 85 8.10 | 1ku TQFP (PFB) | 48
ADS7881IPFBTG4 ACTIVE -40 to 85 8.10 | 1ku TQFP (PFB) | 48
ADS7881IRGZR ACTIVE -40 to 85 7.35 | 1ku VQFN (RGZ) | 48
ADS7881IRGZRG4 ACTIVE -40 to 85 7.35 | 1ku VQFN (RGZ) | 48
ADS7881IRGZT ACTIVE -40 to 85 8.10 | 1ku VQFN (RGZ) | 48
ADS7881IRGZTG4 ACTIVE -40 to 85 8.10 | 1ku VQFN (RGZ) | 48
ADS7881 应用技术支持与电子电路设计开发资源下载
  1. ADS7881 数据资料 dataSheet 下载.PDF
  2. TI 德州仪器仪ADC 模数转换器产品选型与价格 . xls