ADS1234 24 位超低噪声模数转换器

ADS1242 相关产品

The ADS1232 and ADS1234 are precision 24-bit analog-to-digital converters (ADCs). With an onboard, low-noise programmable gain amplifier (PGA), precision delta-sigma ADC and internal oscillator, the ADS1232/4 provide a complete front-end solution for bridge sensor applications including weigh scales, strain gauges and pressure sensors.

The input multiplexer accepts either two (ADS1232) or four (ADS1234) differential inputs. The ADS1232 also includes an onboard temperature sensor to monitor ambient temperature. The onboard, low-noise PGA has a selectable gain of 1, 2, 64, or 128 supporting a full-scale differential input of ±2.5V, ±1.25V, ±39mV, or ±19.5mV. The delta-sigma ADC has 23.5-bit effective resolution and is comprised of a 3rd-order modulator and 4th-order digital filter.

ADS1130 ADS1131 ADS1230 ADS1231 ADS1232 ADS1234
Resolution(Bits) 18 20 24 24
Sample Rate (max) 80SPS 80SPS 80SPS 80SPS 80SPS
Architecture Delta-Sigma Delta-Sigma Delta-Sigma Delta-Sigma Delta-Sigma Delta-Sigma
Power Consumption(Typ)(mW) 2.9 2.9 2.9 2.9 4.3 4.3
DNL(Max)(+/-LSB) 1 1 1 1 1 1
INL(Max)(+/-LSB) 0.0006% 0.0006% 0.0006% 0.0002% 0.0002%
No Missing Codes(Bits) 18 18 20 24 24 24
ENOB(Bits) 17.5 17.5 19.5 23.5 23.5 23.5
No. of Supplies 2 2 2 2 2 2
Analog Voltage AV/DD(Min)(V) 2.7 2.7 2.7 2.7 2.7 2.7
Analog Voltage AV/DD(Max)(V) 5.3 5.3 2.3 5.3 5.3 5.3
Logic Voltage DV/DD(Min)(V) 2.7 2.7 2.7 2.7 2.7
Logic Voltage DV/DD(Max)(V) 5.3 5.3 5.3 5.3 5.3
Input Configuration Range 0.5Vref/PGA (1,2,64) 0.5Vref/PGA 0.5Vref/PGA (1,2,64,128) 0.5Vref/PGA 0.5Vref/PGA (1,2,64,128) 0.5Vref/PGA (1,2,64,128)
Reference Mode Ext Ext Ext EXT Ext Ext
Rating Catalog Catalog Catalog Catalog Catalog Catalog
Pin/Package 16TSSOP 16TSSOP 16TSSOP 16TSSOP 24TSSOP 28TSSOP
# Input Channels 1 1 1 1 2 4
Operating Temp Range(Celsius) -40 to 85 -40 to 85 -40 to 105 -40 to 105
ADS1234 特性
ADS1234 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
ADS1234IPW ACTIVE -40 to 105 4.50 | 1ku TSSOP(PW) | 28 50 | TUBE ADS1234
ADS1234IPWG4 ACTIVE -40 to 105 4.50 | 1ku TSSOP(PW) | 28 50 | TUBE ADS1234
ADS1234IPWR ACTIVE -40 to 105 4.05 | 1ku TSSOP(PW) | 28 2000 | LARGE T&R ADS1234
ADS1234IPWRG4 ACTIVE -40 to 105 4.05 | 1ku TSSOP(PW) | 28 2000 | LARGE T&R ADS1234
ADS1234 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
ADS1234 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
ADS1234IPW Green (RoHS & no Sb/Br)  CU NIPDAU  Level-2-260C-1 YEAR ADS1234IPW ADS1234IPW
ADS1234IPWG4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-2-260C-1 YEAR ADS1234IPWG4 ADS1234IPWG4
ADS1234IPWR Green (RoHS & no Sb/Br)  CU NIPDAU  Level-2-260C-1 YEAR ADS1234IPWR ADS1234IPWR
ADS1234IPWRG4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-2-260C-1 YEAR ADS1234IPWRG4 ADS1234IPWRG4
ADS1234 应用技术支持与电子电路设计开发资源下载
  1. ADS1234 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)