Datasheet

MAX1415/MAX1416

16-Bit, Low-Power, 2-Channel,

Sigma-Delta ADCs

18 ______________________________________________________________________________________

Pin Description

PIN NAME FUNCTION

1 SCLK

Serial Clock Input. Apply an external serial clock to transfer data to and from the device at data rates

up to 5MHz.

2 CLKIN

Clock Input. Connect a crystal/resonator between CLKIN and CLKOUT, or drive CLKIN externally with

a CMOS-compatible clock source. Connect CLKIN to GND when using the internal oscillator.

3 CLKOUT

Clock Output. Connect a crystal/resonator between CLKIN and CLKOUT. When enabled, CLKOUT

provides a CMOS-compatible, inverted clock output. CLKOUT can drive one CMOS load. Set CLKDIS

= 0 in the clock register to enable CLKOUT. Set CLKDIS = 1 in the clock register to disable CLKOUT.

4 CS

Active-Low Chip-Select Input. CS selects the active device in systems with more than one device on

the serial bus. Drive CS low to clock data in on DIN and to clock data out on DOUT. When CS is high,

DOUT is high impedance. Connect CS to GND for 3-wire operation.

5 RESET Active-Low Reset Input. Drive RESET low to reset the MAX1415/MAX1416 to power-on reset status.

6 AIN2+ Channel 2 Positive Analog Input

7 AIN1+ Channel 1 Positive Analog Input

8 AIN1- Channel 1 Negative Analog Input

9 REF+ Positive Reference Input

10 REF- Negative Reference Input

11 AIN2- Channel 2 Negative Analog Input

12 DRDY

Active-Low Data Ready Output. DRDY goes low when a new conversion result is available in the data

13 DOUT

Serial Data Output. DOUT outputs serial data from the data register. DOUT changes on the falling

edge of SCLK and is valid on the rising edge of SCLK. When CS is high, DOUT is high impedance.

14 DIN Serial Data Input. Data on DIN is clocked in on the rising edge of SCLK when CS is low.

15 V

Power Input. Connect V

to a 2.7V to 3.6V power supply for the MAX1415, and connect V

to a

4.75V to 5.25V power supply for the MAX1416.

16 GND Ground