_______________________________________________________________________________________ 7

20-Bit, Single-Channel, Ultra-Low-Power, Delta-

Sigma ADCs with Programmable Gain and GPIO

Functional Diagram

TIMING

CLOCK GENERATOR

DIGITAL LOGIC

AND SERIAL-

INTERFACE

CONTROLLER

3RD-ORDER

DELTA-SIGMA

MODULATOR

SCLK

DIN

CLK

GPIO

CS

RDY/DOUT

GPIO1

GPIO2

GPIO3

GPIO4

AVDD

REFP

REFN

AINP

AINN

DVDD

GND

*PROGRAMMABLE GAIN ONLY AVAILABLE ON THE MAX11206.

DIGITAL FILTER

PROGRAMMABLE

GAIN*

1–128

MAX11206*

MAX11207