ICmic
PACKAGE
IC MICROSYSTEMS
ICM7377B/7357B/7337B
Quad 12/10/8-Bit Voltage Output DACs
with Serial Interface and Adjustable Output Gain
20 Lead QSOP
VDD
FBA
VOA
VOB
FBB
REFAB
CLR
CS
SDI
SCK
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
AGND
FBD
VOD
VOC
FBC
REFCD
N/C
REFOUT
SDO
DGND
TOP VIEW
PIN DESCRIPTION (20 Lead QSOP)
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Name
VDD
FBA
VOA
VOB
FBB
REFAB
CLR
CS
SDI
SCK
DGND
SDO
REFOUT
N/C
REFCD
FBC
VOC
VOD
FBD
AGND
I/O
I
I
O
O
I
I
I
I
I
I
I
O
O
-
I
I
O
O
I
I
Supply Voltage
Description
Inverting Input of The Output Amplifier DAC A. Output Amplifier Feedback Input.
DAC A Output Voltage
DAC B Output Voltage
Inverting Input of The Output Amplifier DAC B. Output Amplifier Feedback Input.
Reference Voltage Input for DAC A and DAC B
Active Low Clear Input (CMOS). Resets All Registers to Zero. DAC outputs go to 0 V
Active Low Chip Select (CMOS)
Serial Data Input (CMOS)
Serial Clock Input (CMOS)
Digital Ground
Serial Data Output
Reference Output
No Connection
Reference Voltage Input for DAC C and DAC D
Inverting Input of The Output Amplifier DAC C. Output Amplifier Feedback Input.
DAC C Output Voltage
DAC D Output Voltage
Inverting Input of The Output Amplifier DAC D. Output Amplifier Feedback Input.
Analog Ground
Rev. A8
ICmic reserves the right to change the specifications without prior notice.
2
ICMIC [ IC MICROSYSTEMS ]
