ADS1282 用于地震监测和能源开发的具有 PGA 的超高分辨率 Σ-Δ ADC
|
ADS1281 |
ADS1282 |
| Resolution(Bits) |
31 |
31 |
| Sample Rate (max) |
4kSPS |
4kSPS |
| Architecture |
Delta-Sigma |
Delta-Sigma |
| Power Consumption(Typ)(mW) |
12 |
27 |
| SNR(dB) |
130 |
130 |
| SNR(Typ)(dB) |
130 |
130 |
| SFDR(dB) |
123 |
123 |
| DNL(Max)(+/-LSB) |
1 |
1 |
| INL(Max)(+/-LSB) |
0.00006% |
0.00006% |
| No Missing Codes(Bits) |
31 |
31 |
| No. of Supplies |
2 |
2 |
| Analog Voltage AV/DD(Min)(V) |
4.75 |
4.75 |
| Analog Voltage AV/DD(Max)(V) |
5.25 |
5.25 |
| Logic Voltage DV/DD(Min)(V) |
1.65 |
1.65 |
| Logic Voltage DV/DD(Max)(V) |
3.6 |
3.6 |
| Input Configuration Range |
0.5Vref |
0.5Vref/PGA |
| Reference Mode |
Ext |
Ext |
| Rating |
Catalog |
Catalog |
| Pin/Package |
24TSSOP |
28TSSOP |
| # Input Channels |
1 |
2 |
The ADS1282 is an extremely high-performance, single-chip analog-to-digital converter (ADC) with an integrated, low-noise programmable gain amplifier (PGA) and two-channel input multiplexer (MUX). The ADS1282 is suitable for the demanding needs of energy exploration and seismic monitoring environments.
The converter uses a fourth-order, inherently stable, delta-sigma (
) modulator that provides outstanding noise and linearity performance. The modulator is used either in conjunction with the on-chip digital filter, or can be bypassed for use with post processing filters.
The flexible input MUX provides an additional external input for measurement, as well as internal self-test connections. The PGA features outstanding low noise (5nV/
Hz) and high input impedance, allowing easy interfacing to geophones and hydrophones over a wide range of gains.
ADS1282 特性
- High Resolution:
130dB SNR (250SPS, High-Resolution Mode)
127dB SNR (250SPS, Low-Power Mode)
- High Accuracy:
THD: –122dB
INL: 0.5ppm
- Low-Noise PGA
- Two-Channel Input MUX
- Inherently-Stable Modulator with Fast Responding
Over-Range Detection
- Flexible Digital Filter:
Sinc + FIR + IIR (Selectable)
Linear or Minimum Phase Response
Programmable High-Pass Filter
Selectable FIR Data Rates: 250SPS to 4kSPS
- Filter Bypass Option
- Low Power Consumption:
High-Resolution Mode: 25mW
Low-Power Mode: 17mW
Shutdown: 10uW
- Offset and Gain Calibration Engine
- SYNC Input
- Analog Supply:
Unipolar (+5V) or Bipolar (±2.5V)
- Digital Supply: 1.8V to 3.3V
- APPLICATIONS
- Energy Exploration
- Seismic Monitoring
- High-Accuracy Instrumentation
ADS1282 芯片订购指南
ADS1282 工具与软件
| 名称 |
型号 |
公司 |
工具/软件类型 |
| ADS1281 性能开发套件 (PDK) |
ADS1281EVM-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 |
| ADCProTM 模数转换器评估软件 |
ADCPRO |
Texas Instruments |
应用软件 |
ADS1282 质量与无铅数据
ADS1282 应用技术支持与电子电路设计开发资源下载
- ADS1282 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)