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16-Channel, 1MSPS, 12-Bit ADC with Sequencer in 28-Lead TSSOP
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16-Channel, 1 MSPS, 12-Bit ADC
with Sequencer in 28-Lead TSSOP
AD7490 Data Sheet
FEATURES FUNCTIONAL BLOCK DIAGRAM
VDD Fast throughput rate: 1 MSPS
Specified for VDD of 2.7 V to 5.25 V
Low power at maximum throughput rates
5.4 mW maximum at 870 kSPS with 3 V supplies
12.5 mW maximum at 1 MSPS with 5 V supplies
16 (single-ended) inputs with sequencer
Wide input bandwidth
69.5 dB SNR at 50 kHz input frequency
Flexible power/serial clock speed management
No pipeline delays
High speed serial interface, SPI/QSPI™/MICROWIRE™/
DSP compatible
Full shutdown mode: 0.5 µA maximum
28-lead TSSOP and 32-lead LFCSP packages AD7490
REFIN VIN0 12-BIT
SUCCESSIVE
APPROXIMATION
ADC T/H INPUT
MUX VIN15 …