Datasheet Analog Devices AD7291BCPZ — 数据表

8-Channel, I2C, 12-Bit SAR ADC
with Temperature Sensor
AD7291 FEATURES FUNCTIONAL BLOCK DIAGRAM 12-bit SAR ADC
8 single-ended analog input channels
Analog input range: 0 V to 2.5 V
12-bit temperature-to-digital converter
Temperature sensor accuracy of ±1°C typical
Channel sequencer operation
Specified for VDD of 2.8 V to 3.6 V
Logic voltage VDRIVE = 1.65 V to 3.6 V
Internal 2.5 V reference
I2C-compatible serial interface supports standard and
fast speed modes
Out of range indicator/alert function
Autocycle mode
Power-down current: 12 μA maximum
Temperature range: −40°C to +125°C
20-lead LFCSP package VDD GND VREF
REF BUF 12-BIT
SUCCESSIVE
APPROXIMATION
ADC VIN0
T/H VIN7 INPUT …

8-Channel, I2C, 12-Bit SAR ADC
with Temperature Sensor
AD7291-EP FEATURES FUNCTIONAL BLOCK DIAGRAM 12-bit SAR ADC
8 single-ended analog input channels
Analog input range: 0 V to 2.5 V
12-bit temperature to digital converter
Temperature sensor accuracy of ±1°C typical
Channel sequencer operation
Specified for VDD of 2.8 V to 3.6 V
Logic voltage VDRIVE = 1.65 V to 3.6 V
Internal 2.5 V reference
I2C-compatible serial interface supports standard and
fast speed modes
Out of range indicator/alert function
Autocycle mode
Power-down current: 13 µA maximum
20-lead LFCSP package VDD ENHANCED PRODUCT FEATURES GND VREF
REF 12-BIT
SUCCESSIVE
APPROXIMATION
ADC VIN0
T/H VIN7 INPUT
MUX AD7291-EP …