AD9218 10-Bit, 40/65/80/105 MSPS 3 V Dual A/D Converter

Low Power. Only 275 mW power dissipation per channel at 105 MSPS. Other speed grades proportionally scaled down while maintaining high ac performance.  Pin Compatibility Upgrade. Allows easy migration from 8-bit to 10-bit devices. Pin compatible with the 8-bit AD9288 dual ADC.  Easy to Use. On-chip reference and user controls provide flexibility in system design.  High Performance. Maintains 54 dB SNR at 105 MSPS with a Nyquist input.  Channel Crosstalk. Very low at –75 dBc. 6. Fabricated on an Advanced CMOS Process. Available in a 48-lead low profile quad flat package (7 mm × 7 mm LQFP) specified over the industrial temperature range (−40°C to +85°C). Battery-powered instruments Hand-held scopemeters Low cost digital oscilloscopes I and Q communications Ultrasound equipment

The AD9218 is a dual 10-bit monolithic sampling analog-to-digital converter with on-chip track-and-hold circuits. The product is low cost, low power, and is small and easy to use. The AD9218 operates at a 105 MSPS conversion rate with outstanding dynamic performance over its full operating range. Each channel can be operated independently.

The ADC requires only a single 3.0 V (2.7 V to 3.6 V) power supply and a clock for full operation. No external reference or driver components are required for many applications. The digital outputs are TTL/CMOS compatible and a separate output power supply pin supports interfacing with 3.3 V or 2.5 V logic.

The clock input is TTL/CMOS compatible and the 10-bit digital outputs can be operated from 3.0 V (2.5 V to 3.6 V) supplies. User-selectable options offer a combination of power-down modes, digital data formats, and digital data timing schemes. In power-down mode, the digital outputs are driven to a high impedance state.

Product Highlights

Applications

Features and Benefits
  • Dual 10-bit, 40 MSPS, 65 MSPS, 80 MSPS, and 105 MSPS ADC
  • Low power: 275 mW at 105 MSPS per channel
  • On-chip reference and track-and-hold
  • 300 MHz analog bandwidth each channel
  • SNR = 57 dB @ 41 MHz, Encode = 80 MSPS
  • 1 V p-p or 2 V p-p analog input range each channel
  • 3.0 V single-supply operation (2.7 V to 3.6 V)
  • Power-down mode for single-channel operation
  • Twos complement or offset binary output mode
  • Output data alignment mode
  • Pin compatible with the 8-bit AD9288
  • –75 dBc crosstalk between channels
Analog to Digital Converters
AD9218 IBIS Models
Data Sheets
Documentnote
AD9218: 10-Bit, 40/65/80/105 MSPS 3 V Dual Analog-to-Digital Converter Data Sheet (Rev. C)PDF 945 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
Order Information
Part NumberPackagePacking QtyTemp RangePrice 100-499Price 1000+RoHS
AD9218BST-105 Production48 ld LQFPOTH 250-40 to 85C23.3421.01N
AD9218BST-RL105 Production48 ld LQFPREEL 2000-40 to 85C021.01N
AD9218BSTZ-105 Production48 ld LQFPOTH 250-40 to 85C19.2517.33Y
AD9218BSTZ-40 Production48 ld LQFPOTH 250-40 to 85C10.719.11Y
AD9218BSTZ-65 Production48 ld LQFPOTH 250-40 to 85C13.2311.9Y
AD9218BSTZ-80 Production48 ld LQFPOTH 250-40 to 85C15.0313.52Y
AD9218BSTZ-RL105 Production48 ld LQFPREEL 2000-40 to 85C017.33Y
AD9218BSTZ-RL40 Production48 ld LQFPREEL 2000-40 to 85C09.11Y
AD9218BSTZ-RL65 Production48 ld LQFPREEL 2000-40 to 85C011.9Y
AD9218BSTZ-RL80 Production48 ld LQFPREEL 2000-40 to 85C013.52Y
Reference Materials
AD9218: 10-Bit, 40/65/80/105 MSPS 3 V Dual Analog-to-Digital Converter Data Sheet (Rev. C) ad9218
AD9218BST (All Speed Grades) ad9218
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
Ultrasound System Considerations and their Impact on Front-End Components ad600
MS-2210:高速ADC的电源设计 ad9861
Single Chip Realizes Direct-Conversion Rx ad8346