AD7699:  16-Bit、8通道、500 kSPS PulSAR® ADC

AD7699是一款8通道、16-Bit、电荷再分配逐次逼近型模数转换器（ADC），采用单电源供电。AD7699拥有多通道、低功耗、数据采集系统所需的所有要素，包括：无失码的真16-bit SAR ADC；用于将输入配置为单端输入（使用或不使用参考地）、差分输入或双极输入的、4通道、低串扰的多路复用器；内部低漂移基准源（可以选择2.5V或4.096V）和缓冲器；温度传感器；可选择的1极点滤波器；和多通道连续采样时的序列器。

AD7699使用简单的SPI接口实现配置寄存器的写入和转换结果的接收。SPI接口使用单独的电源（VIO），其被设定为主逻辑电平。功耗与吞吐率成正比。AD7699采用小型20引脚LFCSP封装，工作温度范围是-40°C～+85°C。

AD7699 特点

• 16-bit resolution with no missing codes
• 8-channel multiplexer with choice of imputs Unipolar single ended Differential (GND sense) Psuedobipolar
• Throughput: 500 kSPS
• INL/DNL: ±0.5 LSB typical, ±1.5 LSB maximum (±23 ppm or FSR)
• Dynamic range: 93.3 dB
• SINAD: 91.5 dB @ 20 kHz
• THD: −97 dB @ 20 kHz
• Analog input range: 0 V to VREF with VREF up to VDD
• See data sheet for additional features

AD7699 技术指标

• Resolution (Bits): 16bit
• # Chan: 8
• Sample Rate: 500kSPS
• Interface: Ser,SPI
• Analog Input Type: Diff-Uni,SE-Bip,SE-Uni
• Ain Range: (Vref) p-p,4 V p-p,Bip (Vref) x 0.5,Uni (Vref)
• ADC Architecture: SAR
• Pkg Type: CSP

AD7699 应用领域

• 电池供电设备
  医疗仪器
  移动通信
  个人数字助理
• 数据采集
• 地震数据采集系统
• 仪器仪表
• 过程控制

AD7699 建议配套产品

• Recommended Driver Amplifiers for the AD7699
  • For low noise and low power applications, we recommend the ADA4841-1, ADA4841-2, AD8137 or the ADA4932-1.
  • For low noise and high frequency, we suggest the AD8021, ADA4899 or the dual AD8022.
  • For low noise and low frequency at high supply voltages( up to +-18V), we suggest the AD8597, ADA4627-1 or the dual AD8599.
  • For low noise and low frequency applications at medium supply voltages( up to +-13V), we recommend the AD8610, or the dual AD8620.
  • For low noise, low power and low frequency, we recommend the OP184.
  • For low noise and 5V single supply applications, we suggest the AD8655.
  • For low power and 5V single supply, we suggest the AD8605 or higher speed AD8615.
• Recommended Voltage References - 4.096V for the AD7699
  • For low noise, high current output, we recommend the ADR434.
  • For low noise, low dropout voltage, we suggest the ADR444.
  • Recommended Voltage References - 5.0V for the AD7699
  • For low noise, high current output, we recommend the ADR435.
• Recommended Power Solutions
  • For selecting voltage regulator products, use ADIsimPower.
  • For selecting supervisor products, use the Supervisor Parametric Search.

AD7699 功能框图

AD7699 芯片订购指南

产品型号	产品状态	封装	引脚	温度范围
AD7699BCPZ	量产	20 ld LFCSP 4x4mm (2.5EP	20	工业
AD7699BCPZRL7	量产	20 ld LFCSP 4x4mm (2.5EP	20	工业
EVAL-AD7699EDZ	量产	评估板	-	待定

AD7699 应用技术支持与电子电路设计开发资源下载

1. AD7699 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