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ADS8508 具有串行接口的 12 位 250kHz CMOS 模数转换器,2.5V 内部参考

ADS8508
Resolution(Bits) 12
Sample Rate (max) 250kSPS
Architecture SAR
Power Consumption(Typ)(mW) 70
SINAD(dB) 73
SNR(dB) 73
SFDR(dB) 90
DNL(Max)(+/-LSB) 0.45
INL(Max)(+/-LSB) 0.45
No Missing Codes(Bits) 12
ENOB(Bits) 11.83
No. of Supplies 1
Analog Voltage AV/DD(Min)(V) 4.75
Analog Voltage AV/DD(Max)(V) 5.25
Logic Voltage DV/DD(Min)(V) 4.75
Logic Voltage DV/DD(Max)(V) 5.25
Input Configuration Range +4V, 5V, 10V; +/-3.3V, 5V, 10V
Reference Mode Int and Ext
Rating Catalog
Pin/Package 20SOIC
Comments Input Impedance is half of 7808
# Input Channels 1
Operating Temperature Range(°C) -40 to 85

The ADS8508 is a complete 12-bit sampling analog-to-digital (A/D) converter using state-of-the-art CMOS structures. It contains a complete 12-bit, capacitor-based, successive approximation register (SAR) A/D converter with sample-and-hold, reference, clock, and a serial data interface. Data can be output using the internal clock or can be synchronized to an external data clock. The ADS8508 also provides an output synchronization pulse for ease of use with standard DSP processors.

The ADS8508 is specified at a 250-kHz sampling rate over the full temperature range. Precision resistors provide various input ranges including ±10 V and 0 V to 5 V, while the innovative design allows operation from a single +5-V supply with power dissipation under 100 mW.

ADS8508 特性
ADS8508 芯片订购指南
器件 状态 温度(oC) 价格(美元) 封装 | 引脚
ADS8508IBDW ACTIVE -40 to 85 10.95 | 1ku SOIC (DW) | 20
ADS8508IBDWG4 ACTIVE -40 to 85 10.95 | 1ku SOIC (DW) | 20
ADS8508IBDWR ACTIVE -40 to 85 9.95 | 1ku SOIC (DW) | 20
ADS8508IBDWRG4 ACTIVE -40 to 85 9.95 | 1ku SOIC (DW) | 20
ADS8508 应用技术支持与电子电路设计开发资源下载
  1. ADS8508 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