Datasheet

1
2
3
4
12
11
10
9
SCLK
SYNC
IOV
DD
SDO
V
OUT
A
V
DD
GND
V
OUT
B
VFBA VREFA
PD
DCEN
CLR SDIN
VFBB
VREFB
16 15 14 13
5 6 7 8
DAC7552
www.ti.com SLAS442D –JANUARY 2005– REVISED JUNE 2011
PIN DESCRIPTION
RGT PACKAGE
(TOP VIEW)
Terminal Functions
TERMINAL DESCRIPTION
NO. NAME
1 V
OUT
A Analog output voltage from DAC A
2 V
DD
Analog voltage supply input
3 GND
(1)
Ground
4 V
OUT
B Analog output voltage from DAC B
5 VFBB DAC B amplifier sense input. (For voltage output operation, connect to VOUTB externally.)
6 VREFB Positive reference voltage input for DAC B
7 PD Power-down
8 DCEN Daisy-chain enable
9 SDO Serial data output
10 IOVDD I/O voltage supply input. (For single supply operation, connect to VDD externally.)
11 SYNC Frame synchronization input. The falling edge of the SYNC pulse indicates the start of a serial data frame shifted out
to the DAC7552
12 SCLK Serial clock input
13 SDIN Serial data input
14 CLR Asynchronous input to clear the DAC registers. When CLR is low, the DAC registers are set to 000H and the output
voltage to 0 V.
15 VREFA Positive reference voltage input for DAC A
16 VFBA DAC A amplifier sense input. (For voltage output operation, connect to VOUTA externally.)
(1) Thermal pad should be connected to GND.
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