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ADS7951 12 位、1MSPS、8 通道、单端、微功耗、串行接口、SAR ADC

The ADS79XX is a 12/10/8-bit multichannel analog-to-digital converter family. The following table shows all twelve devices from this product family.

The devices include a capacitor based SAR A/D converter with inherent sample and hold.

The devices accept a wide analog supply range from 2.7V to 5.25V. Very low power consumption makes these devices suitable for battery-powered and isolated power supply applications.

A wide 1.7V to 5.25V I/O supply range facilitates a glue-less interface with the most commonly used CMOS digital hosts.

The serial interface is controlled by CS and SCLK for easy connection with microprocessors and DSP.

The input signal is sampled with the falling edge of CS.


ADS7950 ADS7951 ADS7952 ADS7953 ADS7954 ADS7955 ADS7956 ADS7957 ADS7958 ADS7959 ADS7960 ADS7961
Resolution(Bits) 12 12 12 12 10 10 10 10 8 8 8 8
Sample Rate (max) 1MSPS 1MSPS 1MSPS 1MSPS 1MSPS 1MSPS 1MSPS 1MSPS 1MSPS 1MSPS 1MSPS 1MSPS
Architecture SAR SAR SAR SAR SAR SAR SAR SAR SAR SAR SAR SAR
Power Consumption(Typ)(mW) 11.5 11.5 11.5 11.5 11.5 11.5 11.5 11.5 11.5 11.5 11.5 11.5
SINAD(dB) 69 69 69 69 60 60 60 60 49 49 49 49
SNR(dB) 70 70 70 70 60 60 60 60 49 49 49 49
SNR(Typ)(dB) 71.7 71.7 71.7 71.7 61.7 61.7 61.7 61.7 49.8 49.8 49 49
SFDR(dB) 84 84 84 84 82 82 82 82 78 78 78 78
DNL(Max)(+/-LSB) 1 1 1 1 0.5 0.5 0.5 0.5 0.3 0.3 0.3 0.3
INL(Max)(+/-LSB) 1 1 1 1 0.5 0.5 0.5 0.5 0.3 0.3 0.3 0.3
No Missing Codes(Bits) 12 12 12 12 10 10 10 10 8 8 8 8
ENOB(Bits) 11.29 11.29 11.29 11.29 9.66 9.66 9.66 9.66 7.85 7.85 7.85 7.85
No. of Supplies 2 2 2 2 2 2 2 2 2 2 2 2
Analog Voltage AV/DD(Min)(V) 2.7 2.7 2.7 2.7 2.7 2.7 2.7 2.7 2.7 2.7 2.7 2.7
Analog Voltage AV/DD(Max)(V) 5.25 5.25 5.25 5.25 5.25 5.25 5.25 5.25 5.25 5.25 5.25 5.25
Logic Voltage DV/DD(Min)(V) 1.7 1.7 1.7 1.7 1.7 1.7 1.7 1.7 1.7 1.7 1.7 1.7
Logic Voltage DV/DD(Max)(V) 5.25 5.25 5.25 5.25 5.25 5.25 5.25 5.25 5.25 5.25 5.25 5.25
Input Configuration Range Vref, 2Vref Vref, 2Vref Vref, 2Vref Vref, 2Vref Vref, 2Vref Vref, 2VREF Vref, 2VREF Vref, 2Vref Vref. 2Vref Vref, 2Vref Vref, 2Vref Vref, 2Vref
Reference Mode Ext Ext Ext Ext Ext Ext Ext Ext Ext Ext Ext Ext
Rating Catalog Catalog Catalog Catalog Catalog Catalog Catalog Catalog Catalog Catalog Catalog Catalog
Pin/Package 24VQFN, 30TSSOP 24VQFN, 30TSSOP 32QFN, 38TSSOP 32QFN, 38TSSOP 24VQFN, 30TSSOP 24VQFN, 30TSSOP 32QFN, 38TSSOP 32QFN, 38TSSOP 24VQFN, 30TSSOP 24VQFN, 30TSSOP 32QFN, 38TSSOP 32QFN, 38TSSOP
# Input Channels 4 8 12 16 4 8 12 16 4 8 12 16
Operating Temperature Range(°C) -40 to 125 -40 to 125 -40 to 125 -40 to 125 -40 to 125 -40 to 125 -40 to 125 -40 to 125 -40 to 125 -40 to 125 -40 to 125 -40 to 125
ADS7951 特性
ADS7951 芯片订购指南
器件 状态 温度 (oC) 价格(美元) 封装 | 引脚
ADS7951SBDBT ACTIVE -40 to 125 3.60 | 1ku TSSOP (DBT) | 30
ADS7951SBDBTG4 ACTIVE -40 to 125 3.60 | 1ku TSSOP (DBT) | 30
ADS7951SBDBTR ACTIVE -40 to 125 3.30 | 1ku TSSOP (DBT) | 30
ADS7951SBDBTRG4 ACTIVE -40 to 125 3.30 | 1ku TSSOP (DBT) | 30
ADS7951SBRGER ACTIVE -40 to 125 3.00 | 1ku VQFN (RGE) | 24
ADS7951SBRGET ACTIVE -40 to 125 3.30 | 1ku VQFN (RGE) | 24
ADS7951SDBT ACTIVE -40 to 125 3.30 | 1ku TSSOP (DBT) | 30
ADS7951SDBTG4 ACTIVE -40 to 125 3.30 | 1ku TSSOP (DBT) | 30
ADS7951SDBTR ACTIVE -40 to 125 3.00 | 1ku TSSOP (DBT) | 30
ADS7951SDBTRG4 ACTIVE -40 to 125 3.00 | 1ku TSSOP (DBT) | 30
ADS7951SRGER ACTIVE -40 to 125 2.70 | 1ku VQFN (RGE) | 24
ADS7951SRGET ACTIVE -40 to 125 3.00 | 1ku VQFN (RGE) | 24
ADS7951 应用技术支持与电子电路设计开发资源下载
  1. ADS7951 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