AD7401A

Rev. 0 | Page 9 of 20

PIN CONFIGURATION AND FUNCTION DESCRIPTIONS

16

NC

15

14

MCLKIN

13

NC

12

MDAT

11

NC

10

9

NC = NO CONNECT

AD7401A

TOP VIEW

(Not to Scale)

Figure 5. Pin Configuration

Table 8. Pin Function Descriptions

Pin No.

Mnemonic

Description

1, 7

2

Positive Analog Input. Specified range of ±250 mV.

3

4 to 6, 10,

12, 15

NC

No Connect.

8

Ground 1. This is the ground reference point for all circuitry on the isolated side.

9, 16

Ground 2. This is the ground reference point for all circuitry on the nonisolated side.

11

MDAT

Serial Data Output. The single bit modulator output is supplied to this pin as a serial data stream.

The bits are clocked out on the rising edge of the MCLKIN input and valid on the following MCLKIN rising edge.

13

MCLKIN

Master Clock Logic Input. 20 MHz maximum. The bit stream from the modulator is valid on the rising edge of MCLKIN.

14