Analog Devices Inc. AD7609BSTZ

Description
The AD7609 is an 8-channel, 18-bit, simultaneous sampling analog-to-digital converter (ADC) with true differential inputs and true bipolar analog input ranges of ±10 V and ±5 V. It features a fully integrated data acquisition solution with analog input clamp protection, an input buffer with 1 MΩ analog input impedance, a second-order antialiasing analog filter, an on-chip accurate reference and reference buffer, and a 18-bit ADC with 200 kSPS on all channels. The AD7609 also has oversampling capability with a digital filter and a flexible parallel/serial interface that is SPI/QSPI/MICROWIRE™/DSP compatible.

Features
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
On-chip accurate reference and reference buffer
18-bit ADC with 200 kSPS on all channels
Oversampling capability with digital filter
Flexible parallel/serial interface
SPI/QSPI/MICROWIRE™/DSP compatible
Performance
7 kV ESD rating on analog input channels
98 dB SNR, -107 dB THD
Dynamic range: up to 105 dB typical
Low power: 100 mW
Standby mode: 25 mW
64-lead LQFP package

Applications
Power line monitoring and protection systems
Multiphase motor control
Instrumentation and control systems
Multiaxis positioning systems
Data acquisition systems (DAS)