Datasheet

MAX11270 24-Bit, 10mW, 130dB SNR, 64ksps Delta-Sigma
ADC with Integrated PGA
www.maximintegrated.com
Maxim Integrated │ 3
TABLE OF CONTENTS (continued)
Register Address Map........................................................................30
Status Register (Read Only) ...................................................................31
Control Registers ...........................................................................33
Control 1 Register (Read/Write) .............................................................33
Control 2 Register (Read/Write) .............................................................34
Control 3 Register (Read/Write) .............................................................35
Control 4 Register (Read/Write) .............................................................35
Control 5 Register (Read/Write) .............................................................36
Data Register (Read Only) ....................................................................36
Calibration .................................................................................37
Self-Calibration ..........................................................................37
System Calibration........................................................................37
SPI System Offset Calibration Register (SOC_SPI) ..............................................38
ADC System Offset Calibration Register (SOC_ADC) ............................................38
SPI System Gain Calibration Register (SGC_SPI) ...............................................38
ADC System Gain Calibration Register (SGC_ADC) .............................................38
SPI Self-Cal Offset Calibration Register (SCOC_SPI) ............................................39
ADC Self-Cal Offset Calibration Register (SCOC_ADC) ..........................................39
SPI Self-Cal Gain Calibration Register (SCGC_SPI) .............................................39
ADC Self-Cal Gain Calibration Register (SCGC_ADC) ...........................................39
GPIOs ....................................................................................41
Conversion Synchronization Using SYNC Pin or SYNC_SPI Function ..................................41
Continuous Mode.........................................................................41
Pulse Mode .............................................................................42
Modulator MODBITS Mode....................................................................42
Initializing MODBITS Mode .................................................................42
Exiting MODBITS Mode....................................................................42
MODBITS Mode Pin Configurations ..........................................................42
DOUT/MB0..............................................................................43
GPIO3/MSYNC ..........................................................................43
GPIO1/MB1 .............................................................................43
RDYB/ICLK .............................................................................43
Typical Application Circuit ...................................................................... 45
Ordering Information .......................................................................... 46
Chip Information .............................................................................. 46
Package Information .......................................................................... 46
Revision History .............................................................................. 47