ADS7812 低功耗串行 12 位采样模数转换器

ADS7812
Resolution(Bits) 12
Sample Rate (max) 40kSPS
Architecture SAR
Power Consumption(Typ)(mW) 35
SINAD(dB) 74
SNR(dB) 74
SFDR(dB) 98
DNL(Max)(+/-LSB) 0.5
INL(Max)(+/-LSB) 0.5
No Missing Codes(Bits) 12
ENOB(Bits) 12
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, 10V, +/-3.3V, 5V, 10V
Reference Mode Int and Ext
Rating Catalog
Pin/Package 16PDIP, 16SOIC
# Input Channels 1
Operating Temperature Range(°C) -40 to 85

The ADS7812 is a low-power, single +5V supply, 12-bit sampling analog-to-digital converter. It contains a complete 12-bit capacitor-based SAR A/D with a sample/hold, clock, reference, and serial data interface.

The converter can be configured for a variety of input ranges including ±10V, ±5V, 0V to 10V, and 0.5V to 4.5V. A high impedance 0.3V to 2.8V input range is also available (input impedance > 10MΩ). For most input ranges, the input voltage can swing to +16.5V or –16.5V without damage to the converter.

A flexible SPI compatible serial interface allows data to be synchronized to an internal or external clock. The ADS7812 is specified at a 40kHz sampling rate over the –40°C to +85°C temperature range.

ADS7812 特性
ADS7812 芯片订购指南
器件 状态 温度(oC) 价格(美元) 封装 | 引脚 封装数量 | 封装载体 丝印标记
ADS7812P ACTIVE   12.40 | 1ku PDIP (N) | 16 25 | TUBE ADS7812P
ADS7812PB ACTIVE   14.20 | 1ku PDIP (N) | 16 25 | TUBE ADS7812P
ADS7812PBG4 ACTIVE   14.20 | 1ku PDIP (N) | 16 25 | TUBE ADS7812P
ADS7812PG4 ACTIVE   12.40 | 1ku PDIP (N) | 16 25 | TUBE ADS7812P
ADS7812U ACTIVE -40 to 85 11.80 | 1ku SOIC (DW) | 16 40 | TUBE ADS7812U
B
ADS7812UB ACTIVE -40 to 85 15.20 | 1ku SOIC (DW) | 16 40 | TUBE ADS7812U
B
ADS7812UB/1K ACTIVE -40 to 85 14.20 | 1ku SOIC (DW) | 16 1000 | LARGE T&R ADS7812U
B
ADS7812UB/1KE4 ACTIVE -40 to 85 14.20 | 1ku SOIC (DW) | 16 1000 | LARGE T&R ADS7812U
B
ADS7812UB/1KG4 ACTIVE -40 to 85 14.20 | 1ku SOIC (DW) | 16 1000 | LARGE T&R ADS7812U
B
ADS7812UBE4 ACTIVE -40 to 85 15.20 | 1ku SOIC (DW) | 16 40 | TUBE ADS7812U
B
ADS7812UBG4 ACTIVE -40 to 85 15.20 | 1ku SOIC (DW) | 16 40 | TUBE ADS7812U
B
ADS7812UE4 ACTIVE -40 to 85 11.80 | 1ku SOIC (DW) | 16 40 | TUBE ADS7812U
B
ADS7812UG4 ACTIVE -40 to 85 11.80 | 1ku SOIC (DW) | 16 40 | TUBE ADS7812U
B
ADS7812 质量与无铅数据
器件 环保计划* 铅/焊球涂层 MSL 等级/回流焊峰 环保信息与无铅 (Pb-free) DPPM / MTBF / FIT 率
ADS7812P Green (RoHS & no Sb/Br)  CU NIPDAU  N/A for Pkg Type   ADS7812P
ADS7812PB Green (RoHS & no Sb/Br)  CU NIPDAU  N/A for Pkg Type   ADS7812PB
ADS7812PBG4 Green (RoHS & no Sb/Br)  CU NIPDAU  N/A for Pkg Type ADS7812PBG4 ADS7812PBG4
ADS7812PG4 Green (RoHS & no Sb/Br)  CU NIPDAU  N/A for Pkg Type ADS7812PG4 ADS7812PG4
ADS7812U Green (RoHS & no Sb/Br)  CU NIPDAU  Level-3-260C-168 HR   ADS7812U
ADS7812UB Green (RoHS & no Sb/Br)  CU NIPDAU  Level-3-260C-168 HR   ADS7812UB
ADS7812UB/1K Green (RoHS & no Sb/Br)  CU NIPDAU  Level-3-260C-168 HR   ADS7812UB/1K
ADS7812UB/1KE4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-3-260C-168 HR   ADS7812UB/1KE4
ADS7812UB/1KG4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-3-260C-168 HR ADS7812UB/1KG4 ADS7812UB/1KG4
ADS7812UBE4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-3-260C-168 HR   ADS7812UBE4
ADS7812UBG4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-3-260C-168 HR ADS7812UBG4 ADS7812UBG4
ADS7812UE4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-3-260C-168 HR   ADS7812UE4
ADS7812UG4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-3-260C-168 HR ADS7812UG4 ADS7812UG4
ADS7812 应用技术支持与电子电路设计开发资源下载
  1. ADS7812 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
  3. 模数规格和性能特性术语表 (Rev. A) (PDF 1993 KB)
  4. 所选封装材料的热学和电学性质 (PDF 645 KB)
  5. 高速数据转换 (PDF 1967 KB)
  6. Shelf-Life Evaluation of Lead-Free Component Finishes (PDF 1305 KB)
  7. A Spreadsheet for Calculating the Frequency Response of the ADS1250-54 (PDF 461 KB)
  8. A Spreadsheet for Calculating the Frequency Response of the ADS1250-54
  9. Understanding the ADS1251, ADS1253, and ADS1254 Input Circuitry (PDF 39 KB)
  10. Analog-to-Digital Converter Grounding Practices Affect System Performance (PDF 56 KB)
  11. Principles of Data Acquisition and Conversion (PDF 50 KB)
  12. Interleaving Analog-to-Digital Converters (PDF 64 KB)
  13. What Designers Should Know About Data Converter Drift (PDF 95 KB)
  14. Giving Delta-Sigma Converters a Gain Boost with a Front End Analog Gain Stage (PDF 70 KB)
  15. Programming Tricks for Higher Conversion Speeds Utilizing Delta Sigma Converters (PDF 105 KB)
ADS7800 工具与软件
名称 型号 公司 工具/软件类型
用于模数转换器的抗混淆计算工具 ANTIALIASINGCALC Texas Instruments 计算实用程序
运算放大器至 ADC 电路拓扑计算器 ADC-INPUT-CALC Texas Instruments 计算实用程序