ADS1282-HT 用于地震监测和能源开发的具有 PGA 的超高分辨率 Σ-Δ ADC

	ADS1282-HT
Resolution(Bits)	31
Sample Rate (max)	4kSPS
Architecture	Delta-Sigma
Power Consumption(Typ)(mW)	30
SNR(Typ)(dB)	124
DNL(Max)(+/-LSB)	1
INL(Max)(+/-LSB)	0.01
No Missing Codes(Bits)	31
No. of Supplies	2
Analog Voltage AV/DD(Min)(V)	4.75
Analog Voltage AV/DD(Max)(V)	5.25
Logic Voltage DV/DD(Min)(V)	1.75
Logic Voltage DV/DD(Max)(V)	3.6
Input Configuration Range	0.5Vref/PGA
Reference Mode	External
Rating	Catalog
Pin/Package	28CDIP
# Input Channels	2
Operating Temperature Range (°C)	-55 to 210
Operating Temp Range(Celsius)	-55 to 210

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.

ADS1282-HT 特性

• High Resolution:
  122-dB SNR (250 SPS, High-Resolution Mode)
  119-dB SNR (250 SPS, Low-Power Mode)
• High Accuracy:
  THD: –122 dB
  INL: 0.5 ppm
• 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: 250 SPS to 4 kSPS
• Filter Bypass Option
• Low Power Consumption:
  High-Resolution Mode: 30 mW
  Low-Power Mode: 22 mW
  Shutdown: 0.9 mW
• Offset and Gain Calibration Engine
• SYNC Input
• Analog Supply:
  Unipolar (5 V) or Bipolar (±2.5 V)
• Digital Supply: 1.75 V to 3.3 V
• SUPPORTS EXTREME TEMPERATURE APPLICATIONS
  • Controlled Baseline
  • One Assembly/Test Site
  • One Fabrication Site
  • Extended Product Life Cycle
  • Extended Product-Change Notification
  • Product Traceability
  • Texas Instruments high temperature products utilize highly optimized silicon (die) solutions with design and process enhancements to maximize performance over extended temperatures.

ADS1282-HT 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
ADS1282SJT	PREVIEW	-55 to 210		CDIP (JT) | 28
ADS1282SKGDA	ACTIVE	-55 to 210	175.00 | 1ku	XCEPT (KGD) | 0	400

ADS1282-HT 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

ADS1282-HT 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
ADS1282SJT					ADS1282SJT
ADS1282SKGDA	TBD	Call TI	N/A for Pkg Type	ADS1282SKGDA	ADS1282SKGDA

ADS1282-HT 应用技术支持与电子电路设计开发资源下载

1. ADS1282-HT 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)