AD9281 Dual Channel 8-Bit Resolution CMOS ADC

The AD9281 is a complete dual channel, 28 MSPS, 8-bit CMOS ADC. The AD9281 is optimized specifically for applications where close matching between two ADCs is required (e.g., I/Q channels in communications applications). The 28 MHz sampling rate and wide input bandwidth will cover both narrow-band and spread-spectrum channels. The AD9281 integrates two 8-bit, 28 MSPS ADCs, two input buffer amplifiers, an internal voltage reference and multiplexed digital output buffers.

Features and Benefits
  • Complete Dual Matching ADC
  • Low Power Dissipation:
  • 225 mW (+3 V Supply)
  • Single Supply: 2.7 V to 5.5 V
  • Differential Nonlinearity Error: 0.1 LSB
  • On-Chip Analog Input Buffers
  • On-Chip Reference
  • Signal-to-Noise Ratio: 49.2 dB
  • Over Seven Effective Bits
  • Spurious-Free Dynamic Range: –65 dB
  • No Missing Codes Guaranteed
  • 28-Lead SSOP
Analog to Digital Converters
Data Sheets
Documentnote
AD9281: Dual Channel 8-Bit Resolution CMOS ADC Data Sheet (Rev. F)PDF 406 kB
Application Notes
Documentnote
AN-905: Visual Analog Converter Evaluation Tool Version 1.0 User Manual (Rev. 0)PDF 2124 kB
AN-835: Understanding High Speed ADC Testing and Evaluation (Rev. B)PDF 985 kB
AN-501: Aperture Uncertainty and ADC System Performance (Rev. A)PDF 227 kB
AN-282: Fundamentals of Sampled Data SystemsPDF 2131 kB
AN-756: Sampled Systems and the Effects of Clock Phase Noise and Jitter (Rev. 0)PDF 291.7 K
AN-935: Designing an ADC Transformer-Coupled Front End (Rev. 0)PDF 363 kB
AN-345: Grounding for Low-and-High-Frequency CircuitsPDF 455 kB
AN-737: How ADIsimADC Models an ADC (Rev. B)PDF 373 kB
AN-715: A First Approach to IBIS Models: What They Are and How They Are Generated (Rev. 0)PDF 370.2 K
AN-741: Little Known Characteristics of Phase Noise (Rev. 0)PDF 1679 kB
AN-297: Test Video A/D Converters Under Dynamic ConditionsPDF 731 kB
AN-302: Exploit Digital Advantages in an SSB ReceiverPDF 417 kB
Order Information
Part NumberPackagePacking QtyTemp RangePrice 100-499Price 1000+RoHS
AD9281ARS Production28 ld SSOPOTH 47-40 to 85C54.75N
AD9281ARSRL Production28 ld SSOPREEL 1500-40 to 85C04.75N
AD9281ARSZ Production28 ld SSOPOTH 47-40 to 85C4.123.91Y
AD9281ARSZRL Production28 ld SSOPREEL 1500-40 to 85C03.91Y
Reference Materials
AD9281: Dual Channel 8-Bit Resolution CMOS ADC Data Sheet (Rev. F) ad9281
AN-905: Visual Analog Converter Evaluation Tool Version 1.0 User Manual (Rev. 0) ad9220
AN-835: Understanding High Speed ADC Testing and Evaluation (Rev. B) ad9220
AN-501: Aperture Uncertainty and ADC System Performance (Rev. A) ad9220
AN-282: Fundamentals of Sampled Data Systems ad1674
AN-756: Sampled Systems and the Effects of Clock Phase Noise and Jitter (Rev. 0) ad9220
AN-935: Designing an ADC Transformer-Coupled Front End (Rev. 0) ad9220
AN-345: Grounding for Low-and-High-Frequency Circuits ad9220
AN-835: 高速ADC测试和评估 (Rev. 0) ad9510
AN-282: 采样数据系统基本原理[中文版] (Rev. A) ad75019
AN-737: 如何用ADIsimADC完成ADC建模 (Rev. B) ad6642
AN-737: How ADIsimADC Models an ADC (Rev. B) ad9220
AN-905: VisualAnalog™转换器评估工具1.0版用户手册 (Rev. 0) ad6655
AN-935: ADC变压器耦合前端设计[中文版] (Rev. 0) ad6655
AN-715: 走近IBIS模型：什么是IBIS模型？它们是如何生成的？ (Rev. 0) ad6655
AN-715: A First Approach to IBIS Models: What They Are and How They Are Generated (Rev. 0) ad9220
AN-345: 低频和高频电路接地 ad9540
AN-756: 系统采样以及时钟相位噪声和抖动的影响[中文版] (Rev. 0) ad9540
AN-501: 孔径不确定度与ADC系统性能[中文版] (Rev. A) ad9540
AN-741: Little Known Characteristics of Phase Noise (Rev. 0) ad9221
AN-741: 鲜为人知的相位噪声特性 ad9540
AN-297: Test Video A/D Converters Under Dynamic Conditions ad9814
AN-302: Exploit Digital Advantages in an SSB Receiver ad6600
MS-2210：高速ADC的电源设计 ad9861
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