AD7606/AD7606-6/AD7606-4
GENERAL DESCRIPTION
The AD76061/AD7606-6/AD7606-4 are 16-bit, simultaneous
sampling, analog-to-digital data acquisition systems (DAS) with
eight, six, and four channels, respectively. Each part contains
analog input clamp protection, a second-order antialiasing filter,
a track-and-hold amplifier, a 16-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.
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 AD7606 has 1 MΩ analog input
impedance regardless of sampling frequency. The single supply
operation, on-chip filtering, and high input impedance eliminate
the need for driver op amps and external bipolar supplies. The
AD7606/AD7606-6/AD7606-4 antialiasing filter has a 3 dB cutoff
frequency of 22 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.
The AD7606/AD7606-6/AD7606-4 operate from a single 5 V
supply and can accommodate 10 V and 5 V true bipolar input
1 Patent pending.
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