Product Details
●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
