AD7609 8-Channel Differential DAS with 18-Bit, Bipolar, Simultaneous Sampling ADC

The AD7609 is an 18-bit, 8-channel, true differential, simultaneous sampling analog-to-digital data acquisition system (DAS). The part contains analog input clamp protection, a second-order antialiasing filter, a track-and-hold amplifier, an 18-bit charge redistribution successive approximation analog-to-digital converter (ADC), a flexible digital filter, a 2.5 V reference and reference buffer, and high speed serial and parallel interfaces.

The AD7609 operates from a single 5 V supply and can accommodate ±10 V and ±5 V true bipolar differential input signals while sampling at throughput rates up to 200 kSPS for all channels. The input clamp protection circuitry can tolerate voltages up to ±16.5 V. The AD7609 has 1 MΩ analog input impedance regardless of sampling frequency. The single supply operation, on-chip filtering, and high input impedance elimi-nate the need for driver op amps and external bipolar supplies. The AD7609 antialiasing filter has a −3 dB cutoff frequency of 32 kHz and provides 40 dB antialias rejection when sampling at 200 kSPS. The flexible digital filter is pin driven, yields improvements in SNR, and reduces the −3 dB bandwidth.

APPLICATIONS
  • Power line monitoring and protection systems
  • Multiphase Motor Control
  • Instrumentation and control systems
  • Multiaxis positioning systems
  • Data Acquisition Systems
Features and Benefits
  • 8 simultaneously sampled inputs
  • True Differential Inputs
  • True bipolar analog input ranges: ±10 V, ±5 V
  • Single 5 V analog supply and 2.3 V to 5.25 V VDRIVE
  • Fully integrated data acquisition solution
    Analog input clamp protection
    Input buffer with 1 MΩ analog input impedance
    Second-order antialiasing analog filter
  • Flexible parallel/serial interface
  • See data sheet for additional features
Analog to Digital Converters
Design Tools
Software & Systems Requirements
Data Sheets
Documentnote
AD7609: 8-Channel Differential DAS with 18-Bit, Bipolar, Simultaneous Sampling ADC Data Sheet (Rev. B)PDF 1737 kB
Order Information
Part NumberPackagePacking QtyTemp RangePrice 100-499Price 1000+RoHS
AD7609BSTZ Production64 ld LQFP (10x10mm)OTH 160-40 to 85C26.4322.4Y
AD7609BSTZ-RL Production64 ld LQFP (10x10mm)REEL 1500-40 to 85C022.4Y
Evaluation Boards
Part NumberDescriptionPriceRoHS
EVAL-AD7609EDZEvaluation Board150Y
EVAL-CED1ZEvaluation Board249Y
Reference Materials
AD7609: 8-Channel Differential DAS with 18-Bit, Bipolar, Simultaneous Sampling ADC Data Sheet (Rev. B) ad7609
AD7609: 8通道差分DAS,内置18位、双极性、同步采样ADC (Rev. A) ad7609
AD7609 Filter Model ad7609
AD7609 评估软件 ad7609
MS-2210:高速ADC的电源设计 ad9861