Datasheet

www.ti.com
PIN DESCRIPTION
25
26
27
28
29
30
31
32
1 2 3 4 5 6 7 8
16
15
14
13
12
11
10
9
24 23 22 21 20 19 18 17
VREF4
DCEN
PD
VDD
AGND
RSTSEL
RST
VREF1
VREF3
SYNC
SCLK
SDIN
DGND
IOVDD
SDO
VREF2
VFBHVFBA
VOUTA VOUTB
VFBB
VFBC
VOUTC VOUTD
VFBD
VOUTH
VOUTG
VFBG
VFBF
VOUTF
VOUTE
VFBE
RHB PACKAGE
(TOP VIEW)
DAC7558
SLAS435A – MAY 2005 – REVISED DECEMBER 2005
Terminal Functions
TERMINAL DESCRIPTION
NO. NAME
1 VFBA DAC A amplifier sense input
2 VOUTA Analog output voltage from DAC A
3 VOUTB Analog output voltage from DAC B
4 VFBB DAC B amplifier sense input
5 VFBC DAC C amplifier sense input
6 VOUTC Analog output voltage from DAC C
7 VOUTD Analog output voltage from DAC D
8 VFBD DAC D amplifier sense input
9 VREF2 Positive reference voltage input for DAC C and DAC D
10 SDO Serial data output
11 IOVDD I/O voltage supply input
12 DGND Digital ground
13 SDIN Serial data input
14 SCLK Serial clock input
15 SYNC Frame synchronization input. The falling edge of the SYNC pulse indicates the start of a serial data frame shifted out
to the DAC7558.
16 VREF3 Positive reference voltage input for DAC E and DAC F
17 VFBE DAC E amplifier sense input
18 VOUTE Analog output voltage from DAC E
19 VOUTF Analog output voltage from DAC F
20 VFBF DAC F amplifier sense input
21 VFBG DAC G amplifier sense input
22 VOUTG Analog output voltage from DAC G
23 VOUTH Analog output voltage from DAC H
24 VFBH DAC H amplifier sense input
6