ADS1148 用于温度传感器的 16 位模数转换器
The ADS1146, ADS1147, and ADS1148 are highly-integrated, precision, 16-bit analog-to-digital converters (ADCs). The ADS1146/7/8 feature an onboard, low-noise, programmable gain amplifier (PGA), a precision delta-sigma ADC with a single-cycle settling digital filter, and an internal oscillator. The ADS1147 and ADS1148 also provide a built-in voltage reference with 10mA output capacity, and two matched programmable current digital-to-analog converters (DACs). The ADS1146/7/8 provide a complete front-end solution for temperature sensor applications including thermal couples, thermistors, and resistance temperature detectors (RTDs).
An input multiplexer supports four differential inputs for the ADS1148, two for the ADS1147, and one for the ADS1146.
|
ADS1146 |
ADS1147 |
ADS1148 |
ADS1246 |
ADS1247 |
ADS1248 |
| Resolution(Bits) |
16 |
16 |
16 |
24 |
24 |
24 |
| Sample Rate (max) |
2kSPS |
2kSPS |
2kSPS |
2KSPS |
2KSPS |
2KSPS |
| Architecture |
Delta-Sigma |
Delta-Sigma |
Delta-Sigma |
Delta-Sigma |
Delta-Sigma |
Delta-Sigma |
| Power Consumption(Typ)(mW) |
1.2 |
1.2 |
1.2 |
2.56 |
2.56 |
2.56 |
| DNL(Max)(+/-LSB) |
1 |
1 |
1 |
1 |
1 |
1 |
| INL(Max)(+/-LSB) |
0.0015% |
0.0015% |
0.0015% |
0.0015% |
0.0015% |
0.0015% |
| No Missing Codes(Bits) |
15 |
15 |
15 |
24 |
24 |
24 |
| No. of Supplies |
3 |
3 |
3 |
3 |
3 |
3 |
| Analog Voltage AV/DD(Min)(V) |
2.5 |
2.5 |
2.5 |
2.5 |
2.5 |
2.5 |
| Analog Voltage AV/DD(Max)(V) |
5.8 |
5.8 |
5.8 |
5.8 |
5.8 |
5.8 |
| Logic Voltage DV/DD(Min)(V) |
2.5 |
2.5 |
2.5 |
2.5 |
2.5 |
2.5 |
| Logic Voltage DV/DD(Max)(V) |
5.8 |
5.8 |
5.8 |
5.8 |
5.8 |
5.8 |
| Input Configuration Range |
+/- Vref / PGA |
+/- Vref / PGA |
+/- Vref / PGA |
+/- Vref / PGA |
+/- Vref / PGA |
+/- Vref / PGA |
| Reference Mode |
Ext |
Int and Ext |
Int and Ext |
Ext |
Int and Ext |
Int and Ext |
| Rating |
Catalog |
Catalog |
Catalog |
Catalog |
Catalog |
Catalog |
| Pin/Package |
16TSSOP |
20TSSOP |
28TSSOP |
16TSSOP |
20TSSOP |
28TSSOP |
| # Input Channels |
1 |
3 |
7 |
1 |
3 |
7 |
| Operating Temp Range(Celsius) |
-40 to 125 |
-40 to 125 |
-40 to 125 |
-40 to 105 |
-40 to 105 |
-40 to 105 |
ADS1148 特性
- 16 Bits, No Missing Codes
- Data Output Rates Up to 2kSPS
- Single-Cycle Settling for All Data Rates
- Simultaneous 50/60Hz Rejection at 20SPS
- 4 Differential/7 Single-Ended Inputs (ADS1148)
- 2 Differential/3 Single-Ended Inputs (ADS1147)
- Matched Current Source DACs
- Internal Voltage Reference
- Sensor Burnout Detection
- 4/8 General-Purpose I/Os (ADS1147/8)
- Internal Temperature Sensor
- Power Supply and VREF Monitoring (ADS1147/8)
- Self and System Calibration
- SPI-Compatible Serial Interface
- Analog Supply Operation: +2.7V to +5.25V Unipolar, ±2.5V Bipolar
- Digital Supply: +2.7V to +5.25V
- Operating Temperature -40°C to +125°C
- APPLICATIONS
- Temperature Measurement
- RTDs, Thermocouples, and Thermistors
ADS1148 芯片订购指南
ADS1148 工具与软件
| 名称 |
型号 |
公司 |
工具/软件类型 |
| ADS1148 评估模块 |
ADS1148EVM |
Texas Instruments |
开发电路板/EVM |
| ADS1148 性能演示套件 |
ADS1148EVM-PDK |
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 |
| ADCPro™ 模数转换器评估软件 |
ADCPRO |
Texas Instruments |
应用软件 |
ADS1148 应用技术支持与电子电路设计开发资源下载
- ADS1148 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)
