AD7675: 16位、100 kSPS、差分PulSAR® ADC

AD7675是一款1.5 LSB INL、电荷再分配SAR型模数转换器(ADC),采用5 V单电源供电。该器件内置一个100 kSPS 16位采样ADC、一个差分输入结构、一个内部转换时钟、纠错电路,以及串行和并行系统接口。AD7675拥有无失码性能,92 dB的信纳比(SINAD),100 kSPS时功耗仅为15mW,采用48引脚LQFP封装。AD7675基于PulSAR内核,是业界精度最高的器件之一。另外,与其它器件相比,该器件在功耗方面有显著的改善。

The AD7675 is a 1.5 LSB INL charge redistribution SAR Analog-to-Digital Converter that operates from a single 5 V power supply. It contains a 100 kSPS 16-Bit sampling ADC, a differential input structure, an internal conversion clock, error correction circuits, and both serial and parallel system interface ports. The AD7675 has No Missing Codes performance, a SINAD of 92 dB, consumes only 15mW power at 100 kSPS, and comes in a 48-pin LQFP package.The AD7675 is based on the PulSAR core and is among the the industry's most accurate parts. It also offers a dramatic improvement in power over other parts.

技术特性
  • 吞吐量:100 kSPS
  • 积分非线性(INL):最大值±1.5 LSB(满量程的±0.0015%)
  • 16位分辨率、无失码
  • S/(N+D):典型值94 dB(45 kHz时)
  • 总谐波失真(THD):典型值-110 dB (45 kHz时)
  • 差分输入范围:±2.5 V
  • 具有交流和直流两种规格
  • 无流水线延迟
  • 并行(8位、16位)和串行5 V/3 V接口
  • SPI®/QSPI™/MICROWIRE™/DSP兼容
  • 采用5 V单电源供电
  • 功耗:典型值15 mW,15 W(100 SPS时)
  • Throughput: 100 kSPS
  • INL: ±1.5 LSB Max (±0.0015% of Full Scale)
  • 16 Bits Resolution with No Missing Codes
  • S/(N+D): 94 dB Typ @ 45 kHz
  • THD: –110 dB Typ @ 45 kHz
  • Differential Input Range: ±2.5 V
  • Both AC and DC Specifications
  • No Pipeline Delay
  • Parallel (8 Bits/16 Bits) and Serial 5 V/3 V Interface
  • SPI®/QSPI™/MICROWIRE™/DSP Compatible
  • Single 5 V Supply Operation
  • 15 mW Typical Power Dissipation, 15 µW @ 100 SPS
技术指标
  • Resolution (Bits): 16bit
  • # Chan: 1
  • Sample Rate: 100kSPS
  • Interface: Par,Ser,SPI
  • Analog Input Type: Diff-Uni
  • Ain Range: (2Vref) p-p
  • ADC Architecture: SAR
  • Pkg Type: QFP
功能框图

AD7675 功能框图

订购指南
产品型号 产品状态 封装 引脚 温度范围
AD7675ACP Prodn 48 ld LFCSP 7x7mm (5.25EP) 48 工业
AD7675ACPRL Prodn 48 ld LFCSP 7x7mm (5.25EP) 48 工业
AD7675ACPZ Prodn 48 ld LFCSP 7x7mm (5.25EP) 48 工业
AD7675ACPZRL Prodn 48 ld LFCSP 7x7mm (5.25EP) 48 工业
AD7675AST Prodn 48 ld LQFP 48 工业
AD7675ASTZ Prodn 48 ld LQFP 48 工业
AD7675ASTZRL Prodn 48 ld LQFP 48 工业
EVAL-AD7675CB Prodn Evaluation Boards - 工业
EVAL-AD7675CBZ Prodn EVALUATION BOARDS - 工业
AD7675 应用技术支持与电子电路设计开发资源下载
  1. AD7675 数据手册DataSheet下载 .pdf
  2. Analog Devices, Inc.ADI 美国模拟器件公司产品订购手册 .pdf
  3. ADC模数转换器选型指南 . pdf