ADS1258 24 位快速通道循环 Δ-Σ ADC
ADS1271 相关产品
- ADS1278 - 器件与被比较器件具有相似功能，但并不功能等效。 Similar Device with better AC performance
- ADS1274 - 器件与被比较器件具有相似功能，但并不功能等效。 4 channel version of ADS1278
- ADS1256 - 器件与被比较器件具有相似功能，但并不功能等效。 4 channel version of ADS1258
|
ADS1158 |
ADS1250 |
ADS1251 |
ADS1252 |
ADS1253 |
ADS1254 |
ADS1255 |
ADS1258 |
| Resolution(Bits) |
16 |
20 |
24 |
24 |
24 |
24 |
24 |
24 |
| Sample Rate (max) |
125KSPS |
25kSPS |
20kSPS |
41kSPS |
20kSPS |
20kSPS |
30kSPS |
125kSPS |
| Architecture |
Delta-Sigma |
Delta-Sigma |
Delta-Sigma |
Delta-Sigma |
Delta-Sigma |
Delta-Sigma |
Delta-Sigma |
Delta-Sigma |
| Power Consumption(Typ)(mW) |
42 |
75 |
7.5 |
40 |
7.5 |
4.36 |
36 |
42 |
| DNL(Max)(+/-LSB) |
1 |
1 |
1 |
1 |
1 |
1 |
2 |
1 |
| INL(Max)(+/-LSB) |
1 |
0.0012% |
0.0002% |
0.0003% |
0.0002% |
0.0002% |
0.0003% |
0.0003% |
| No Missing Codes(Bits) |
16 |
20 |
24 |
24 |
24 |
24 |
24 |
24 |
| ENOB(Bits) |
16 |
18 |
19 |
19 |
19 |
19 |
23 |
21.6 |
| No. of Supplies |
2 |
1 |
1 |
1 |
1 |
2 |
2 |
2 |
| Analog Voltage AV/DD(Min)(V) |
4.75 |
4.75 |
4.75 |
4.75 |
4.75 |
4.75 |
4.75 |
4.75 |
| Analog Voltage AV/DD(Max)(V) |
5.25 |
5.25 |
5.25 |
5.25 |
5.25 |
5.25 |
5.25 |
5.25 |
| Logic Voltage DV/DD(Min)(V) |
2.5 |
4.75 |
4.75 |
4.75 |
4.75 |
1.8 |
1.8 |
2.5 |
| Logic Voltage DV/DD(Max)(V) |
3.6 |
5.25 |
5.25 |
5.25 |
5.25 |
3.6 |
3.6 |
3.6 |
| Input Configuration Range |
1.06 Vref |
Vref/PGA (1-8) |
Vref |
Vref |
Vref |
Vref |
2Vref/PGA(1-64) |
1.06Vref |
| Reference Mode |
Ext |
Ext |
Ext |
Ext |
Ext |
Ext |
Ext |
Ext |
| Rating |
Catalog |
Catalog |
Catalog |
Catalog |
Catalog |
Catalog |
Catalog |
Catalog |
| Pin/Package |
48VQFN |
16SOIC |
8SOIC |
8SOIC |
16SSOP/QSOP |
20SSOP/QSOP |
20SSOP |
48VQFN |
| # Input Channels |
16 |
1 |
1 |
1 |
4 |
4 |
2 |
16 |
| Operating Temp Range(Celsius) |
-40 to 105 |
-40 to 85 |
-40 to 85 |
|
-40 to 85 |
-40 to 85 |
-40 to 85 |
-40 to 105 |
The ADS1258 is a 16-channel (multiplexed), low-noise, 24-bit, delta-sigma analog-to-digital converter (ADC) that provides single-cycle settled data at channel scan rates from 1.8k to 23.7k samples per second (SPS) per channel. A flexible input multiplexer accepts combinations of eight differential or 16 single-ended inputs with a full-scale differential range of 5V or true bipolar range of ±2.5V when operating with a 5V reference. The fourth-order delta-sigma modulator is followed by a fifth-order sinc digital filter optimized for low-noise performance.
The differential output of the multiplexer is accessible to allow signal conditioning prior to the input of the ADC. Internal system monitor registers provide supply voltage, temperature, reference voltage, gain, and offset data.
ADS1258 特性
- 24 Bits, No Missing Codes
- Fixed-Channel or Automatic Channel Scan
- Fixed-Channel Data Rate: 125kSPS
- Auto-Scan Data Rate: 23.7kSPS/Channel
- Single-Conversion Settled Data
- 16 Single-Ended or 8 Differential Inputs
- Unipolar (+5V) or Bipolar (±2.5V) Operation
- Low Noise: 2.8uVRMS at 1.8kSPS
- 0.0003% Integral Nonlinearity
- DC Stability (typical):
0.02uV/°C Offset Drift, 0.4ppm/°C Gain Drift
- Open-Sensor Detection
- Conversion Control Pin
- Multiplexer Output for External Signal Conditioning
- On-Chip Temperature, Reference, Offset, Gain, and Supply Voltage Readback
- 42mW Power Dissipation
- Standby, Sleep, and Power-Down Modes
- 8 General-Purpose Inputs/Outputs (GPIO)
- 32.768kHz Crystal Oscillator or External Clock
- APPLICATIONS
- Medical, Avionics, and Process Control
ADS1258 芯片订购指南
ADS1258 工具与软件
| 名称 |
型号 |
公司 |
工具/软件类型 |
| ADS1258 性能开发套件 (PDK) |
ADS1258EVM-PDK |
Texas Instruments |
开发电路板/EVM |
| ADS1258 评估模块 |
ADS1258EVM |
Texas Instruments |
开发电路板/EVM |
| 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 |
| ADCProTM 模数转换器评估软件 |
ADCPRO |
Texas Instruments |
应用软件 |
ADS1258 质量与无铅数据
ADS1258 应用技术支持与电子电路设计开发资源下载
- ADS1258 数据资料 dataSheet 下载.PDF
- TI 德州仪器仪ADC 模数转换器产品选型与价格 . xls
- 模数规格和性能特性术语表 (Rev. A) (PDF 1993 KB)
- 所选封装材料的热学和电学性质 (PDF 645 KB)
- 高速数据转换 (PDF 1967 KB)
- Shelf-Life Evaluation of Lead-Free Component Finishes (PDF
1305 KB)
- A
Spreadsheet for Calculating the Frequency Response of the ADS1250-54 (PDF
461 KB)
- A Spreadsheet for Calculating the Frequency Response of the
ADS1250-54
- Understanding the ADS1251, ADS1253, and ADS1254 Input
Circuitry (PDF 39 KB)
- Analog-to-Digital Converter Grounding Practices Affect System
Performance (PDF 56 KB)
- Principles of Data Acquisition and Conversion (PDF 50 KB)
- Interleaving Analog-to-Digital Converters (PDF 64 KB)
- What
Designers Should Know About Data Converter Drift (PDF 95 KB)
- Giving Delta-Sigma Converters a Gain Boost with a Front End
Analog Gain Stage (PDF 70 KB)
- Programming Tricks for Higher Conversion Speeds Utilizing Delta
Sigma Converters (PDF 105 KB)