Datasheet

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SLAS353 − DECEMBER 2001
4
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31 30 29 28 27
910
1
2
3
4
5
6
7
8
24
23
22
21
20
19
18
17
V
OUT
V
OUT
Sense
AGND
V
REF
L
V
REF
H
AV
DD
DV
DD
DGND
DB15
DB14
DB13
DB12
DB11
DB10
DB9
DB8
32 26
11 12 13 14 15
DB7 DB6 DB5 DB4 DB1
CS R/W LDAC RST RSTSEL BTC/USB PD1
16
PD0
25
DB0 DB3 DB2
DAC8541
Terminal Functions
TERMINAL
I/O
DESCRIPTION
NAME NO.
I/O
DESCRIPTION
DB15−DB0 1−16 I/O Data input/output, (pin 1-MSB: pin 16-LSB)
DGND 17 I Digital ground
DV
DD
18 I Digital supply input, 1.8 V to 5.5 V
AV
DD
19 I Analog power supply input, 2.7 V to 5.5 V
V
REF
H 20 I Positive reference voltage input (referenced to AGND)
V
REF
L 21 I Negative reference voltage input (referenced to AGND), nominally V
REF
L = AGND
AGND 22 I Analog ground
V
OUT
Sense 23 I Analog output sense. The feedback terminal of the output amplifier.
V
OUT
24 O Analog output voltage from DAC. The output amplifier has rail-to-rail operation.
PD0 25 I Powerdown control bit 0
PD1 26 I Powerdown control bit 1
BTC/USB 27 I Data input format: binary twos complement or unipolar straight binary
RSTSEL 28 I Reset V
OUT
on active RST to min-scale (RSTSEL = 0) or mid-scale (RSTSEL = 1)
RST 29 I V
OUT
reset to min-scale or mid-scale, rising edge (Does not reset input register data.)
LDAC 30 I Asynchronous load command, rising edge
R/W 31 I Read/Write control input
CS 32 I Chip select, active low