AD7661:  16位、100 kSPS、内置基准电压的PulSAR®单极性ADC

AD7661是一款16位、100 kSPS、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16位高速采样ADC、一个内部转换时钟、一个内部基准电压、纠错电路,以及串行和并行系统接口。该器件使用ADI公司的0.6微米高性能CMOS工艺制造,成本很低;可提供48引脚LQFP和48引脚小型LFCSP两种封装;工作温度范围为−40°C至+85°C。

The AD7661 is a 16-bit, 100kSPS, charge redistribution SAR, analog-to-digital converter that operates from a single 5 V power supply. The part contains a high-speed 16-bit sampling ADC, an internal conversion clock, internal reference, error correction circuits, and both serial and parallel system interface ports.It is fabricated using Analog Devices’ high-performance, 0.6 micron CMOS process, with correspondingly low cost and is available in a 48-lead LQFP and a tiny 48-lead LFCSP with operation specified from –40°C to +85°C.

技术特性
  • 2.5 V内部基准电压:
    典型漂移量为3 ppm/°C
    最大漂移:15 ppm/°C
  • 吞吐量:100 kSPS
  • 积分非线性(INL):最大值±2.5 LSB(满量程的±0.0038%)
  • 16位分辨率、无失码
  • S/(N+D):88 dB(20 kHz,最大值);总谐波失真(THD):-96 dB(20 kHz,最大值)
  • 模拟输入电压范围:0 V至2.5 V
  • 无流水线延迟
  • 并行和串行5 V/3 V接口
  • SPI®/QSPI™/MICROWIRE™/DSP 兼容
  • 采用5 V单电源供电
  • 功耗:典型值为16 mW,无基准电压、1 kSPS时为160 µW;有基准电压时的典型值为40 mW
  • 封装:
    48引线四方扁平封装(LQFP)
    48引线芯片级封装(LFCSP)
    与PulSAR®此系列ADC引脚兼容
  • 2.5 V Internal Reference:
    Typical Drift 3 ppm/°C
    - Guaranteed Max Drift: 15 ppm/°C
  • Throughput: 100 kSPS
  • INL: ±2.5 LSB Max (±0.0038% of Full Scale)
  • 16 Bits Resolution with No Missing Codes
  • S/(N+D): 88 dB max @ 20 kHz; THD: -96 dB max @ 20 kHz
  • Analog Input Voltage Range: 0 V to 2.5 V
  • No Pipeline Delay
  • Parallel and Serial 5 V/3 V Interface
  • SPI®/QSPI™/MICROWIRE™/DSP Compatible
  • Single 5 V Supply Operation
  • Power Dissipation:
    16 mW typ, 160 µW @ 1 kSPS
    without REF, 40 mW typ with REF
  • Package:
    48-Lead Quad Flat Pack (LQFP)
    48-Lead Chip Scale Package (LFCSP)
    Pin-to-Pin Compatible with
    PulSAR® ADCs
技术指标
  • Resolution (Bits): 16bit
  • # Chan: 1
  • Sample Rate: 100kSPS
  • Interface: Par,Ser,SPI
  • Analog Input Type: Diff-Uni
  • Ain Range: (Vref) p-p,2.5V p-p,Uni (Vref),Uni 2.5V
  • ADC Architecture: SAR
  • Pkg Type: CSP,QFP
功能框图

AD7661 功能框图

订购指南
产品型号 产品状态 封装 引脚 温度范围
AD7661ACP Prodn 48 ld LFCSP 7x7mm (5.25EP) 48 工业
AD7661ACPRL Prodn 48 ld LFCSP 7x7mm (5.25EP) 48 工业
AD7661ACPZ Prodn 48 ld LFCSP 7x7mm (5.25EP) 48 工业
AD7661ACPZRL Prodn 48 ld LFCSP 7x7mm (5.25EP) 48 工业
AD7661AST Prodn 48 ld LQFP 48 工业
AD7661ASTRL Prodn 48 ld LQFP 48 工业
AD7661ASTZ Prodn 48 ld LQFP 48 工业
AD7661ASTZRL Prodn 48 ld LQFP 48 工业
EVAL-AD7661CB Prodn Evaluation Boards - 工业
EVAL-AD7661CBZ Prodn EVALUATION BOARDS - 工业
AD7661 应用技术支持与电子电路设计开发资源下载
  1. AD7661 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