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The ADS7844 is an 8-channel, 12-bit sampling analog-
to-digital converter (ADC) with a synchronous
serial interface. Typical power dissipation is 3mW at
a 200kHz throughput rate and a +5V supply. The
reference voltage (VREF) can be varied between 100mV
and VCC, providing a corresponding input voltage
range of 0V to VREF. The device includes a shutdown
mode which reduces power dissipation to under 1mW.
The ADS7844 is guaranteed down to 2.7V operation.
Low power, high speed, and on-board multiplexer
make the ADS7844 ideal for battery operated systems
such as personal digital assistants, portable multichannel
data loggers, and measurement equipment.
The serial interface also provides low-cost isolation
for remote data acquisition. The ADS7844 is available
in a 20-lead QSOP package and the MAX147 equivalent
20-lead SSOP package and is guaranteed over the
–40°C to +85°C temperature range.
to-digital converter (ADC) with a synchronous
serial interface. Typical power dissipation is 3mW at
a 200kHz throughput rate and a +5V supply. The
reference voltage (VREF) can be varied between 100mV
and VCC, providing a corresponding input voltage
range of 0V to VREF. The device includes a shutdown
mode which reduces power dissipation to under 1mW.
The ADS7844 is guaranteed down to 2.7V operation.
Low power, high speed, and on-board multiplexer
make the ADS7844 ideal for battery operated systems
such as personal digital assistants, portable multichannel
data loggers, and measurement equipment.
The serial interface also provides low-cost isolation
for remote data acquisition. The ADS7844 is available
in a 20-lead QSOP package and the MAX147 equivalent
20-lead SSOP package and is guaranteed over the
–40°C to +85°C temperature range.
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