Datasheet

VA
COMA
COMA
ESD
Clamp
VA
ESD
Clamp
COMA
1
2
3
4
12
11
10
9
5 6 7 8
16 15 14 13
DAP=COMA
COMA
COMD
VD
DIN
C3
NC
LOW
OUT
BASE
VA
C1
C2
DBACK
ACKB
ERRB
ERRLVL
DAC161P997
SNAS515E –JULY 2011–REVISED OCTOBER 2013 www.ti.com
Connection Diagram
Figure 1. WQFN-16 (RGH0016A)
Top View
PIN DESCRIPTIONS
Name Pin Function ESD Protection
VA 15 Analog block positive supply rail
Analog block negative supply rail (local
COMA 1
COMMMON)
Digital block negative supply rail (local
COMD 2
COMMON)
VD 3 Digital block positive supply rail
DIN 4 SWIF input
DBACK 5 SWIF input loop back
SWIF acknowledge output - open drain,
ACKB 6
active LOW
ERRLVL 8 Sets the output current level at power-up
LOW 10 Must be tied to COMA, COMD potential
C1 14 External capacitor
C2 13 External capacitor, HART Input
C3 12 External capacitor
BASE 16 External NPN base drive
N.C. 11 User must not connect to this pin
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