ICM7563/7543/7523
ICmic
IC MICROSYSTEMS
12/10/8-Bit Low Power Quad DACs
With Serial Interface and Voltage Output
FEATURES
•
12/10/8-Bit Quad DAC in 10 Lead MSOP
Package
•
Ultra-Low Power Consumption
•
Guaranteed Monotonic
•
Wide Voltage Swing Output Buffer
•
Three-wire SPI/QSP and Microwire Interface
Compatible
•
Three Software-Selectable Power-Down Output
Impedances (1 K Ohm, 100 K Ohm and Hi-Z)
•
Schmitt-Triggered Inputs for Direct Interfacing to
Opto-couplers
APPLICATION
•
Battery-Powered Applications
•
Industrial Process Control
•
Digital Gain and Offset Adjustment
BLOCK DIAGRAM
OVERVIEW
The ICM7563, ICM7543 and ICM7523 are 12-Bit, 10-Bit
and 8-Bit Voltage Output, Low Power, Quad DACs
respectively, with guaranteed monotonic behavior. These
DACs are available in 10 Lead MSOP package. They have
three
Software-Selectable
Power-Down
Output
Impedances (1 K Ohm, 100 K Ohm and Hi-Z) as additional
safety feature for applications that drive transducers or
valves. The operating supply range is 2.7V to 5.5V.
The input interface is an easy to use three-wire SPI, QSPI
and Microwire compatible interface. The DAC has Schmitt-
Triggered Inputs for Direct Interfacing to Opto-couplers
easily.
REFIN
ICM7563/7543/7523
INPUT
REGISTER A
DAC
REGISTER A
x2
VOA
DAC A
RESISTOR
NETWORK A
x2
VOB
INPUT
REGISTER B
DAC
REGISTER B
DAC B
RESISTOR
NETWORK B
x2
INPUT
REGISTER C
DAC
REGISTER C
VOC
DAC C
RESISTOR
NETWORK C
x2
INPUT
REGISTER D
DAC
REGISTER D
VOD
DAC D
RESISTOR
NETWORK D
INPUT CONTROL LOGIC, REGISTERS AND LATCHES
POWER DOWN CONTROL
CS
SDI
SCK
Rev. A7
ICmic reserves the right to change specifications without prior notice
ICM7563/7543/7523
PACKAGE
10 Lead MSOP
CS
SCK
VDD
GND
SDI
1
2
3
4
5
TOP VIEW
10
9
8
7
6
VOD
VOC
VOB
VOA
REFIN
PIN DESCRIPTION (10 Lead MSOP)
Pin
1
2
3
4
5
6
7
8
9
10
Name
CS
SCK
VDD
GND
SDI
REFIN
VOA
VOB
VOC
VOD
I/O
I
I
I
I
I
I
O
O
O
O
Active Low Chip Select (CMOS)
Serial Clock Input (CMOS)
Supply Voltage
Ground
Serial Data Input (CMOS)
Reference Voltage Input to DAC A-B-C-D
DAC A Output Voltage
DAC B Output Voltage
DAC C Output Voltage
DAC D Output Voltage
Description
2
Rev. A7
ICmic reserves the right to change specifications without prior notice
ICM7563/7543/7523
ABSOLUTE MAXIMUM RATINGS
Symbol
V
DD
I
IN
V
IN_
V
IN_REF
T
STG
T
SOL
Parameter
Supply Voltage
Input Current
Digital Input Voltage (SCK, SDI , CLR , CS )
Reference Input Voltage
Storage Temperature
Soldering Temperature
Value
-0.3 to 7.0
+/- 25.0
-0.3 to 7.0
-0.3 to 7.0
-65 to +150
300
Unit
V
mA
V
V
o
C
o
C
Stress greater than those listed under ABSOLUTE MAXIMUM RATINGS may cause permanent damage to the device. This is a stress rating only
and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not
implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability.
ORDERING INFORMATION
Part
ICM7563
ICM7543
ICM7523
DC ELECTRICAL CHARACTERISTICS
(V
DD
= 2.7V to 5.5V, V
OUT
unloaded; all specifications T
MIN
to T
MAX
unless otherwise noted)
Operating Temperature Range
-40
o
C to 85
o
C
-40
o
C to 85
o
C
-40
o
C to 85
o
C
Package
10-Lead MSOP
10-Lead MSOP
10-Lead MSOP
Symbol
Parameter
Test Conditions
Min
Typ
Max
Unit
DC PERFORMANCE
ICM7563
N
DNL
INL
ICM7543
N
DNL
INL
ICM7523
N
DNL
INL
GE
OE
V
DD
I
DD
Resolution
Differential Nonlinearity
Integral Nonlinearity
Gain Error
Offset Error
Supply Voltage
Supply Current
Full Scale at VDD=5..5
Full Scale at VDD=3.6
2.7
5
250
210
(Notes 1 & 3)
(Notes 1 & 3)
8
0.05
0.25
+1.0
+0.75
+0.5
+25
5.5
410
390
Bits
LSB
LSB
% of FS
mV
V
A
A
Resolution
Differential Nonlinearity
Integral Nonlinearity
(Notes 1 & 3)
(Notes 1 & 3)
10
0.1
1.0
+1.0
+3.0
Bits
LSB
LSB
Resolution
Differential Nonlinearity
Integral Nonlinearity
(Notes 1 & 3)
(Notes 1 & 3)
12
0.4
4.0
+1.0
+12.0
Bits
LSB
LSB
STATIC ACCURACY
POWER REQUIREMENTS
Rev. A7
ICmic reserves the right to change specifications without prior notice
3
ICM7563/7543/7523
DC ELECTRICAL CHARACTERISTICS (continued)
(V
DD
= 2.7V to 5.5V, V
OUT
unloaded; all specifications T
MIN
to T
MAX
unless otherwise noted)
Symbol
Parameter
Test Conditions
Min
Typ
Max
Unit
OUTPUT CHARACTERISTICS
Vout
VO
SC
Rout
Output Voltage Range
Short Circuit Current
Output Impedance
Output Line Regulation
LOGIC INPUTS
V
IH
V
IL
Digital Input High
Digital Input Low
Digital Input Leakage
AC ELECTRICAL CHARACTERISTICS
(V
DD
= 2.7V to 5.5V, V
OUT
unloaded; all specifications T
MIN
to T
MAX
unless otherwise noted)
(Note 3)
Power-Down at 1 K Ohm
Power-Down at 100 K Ohm
V
DD
=2.7V to 5.5V
(Note 2)
(Note 2)
0
60
0.9
90
-3.0
2.4
1
100
0.4
V
DD
150
1.1
110
3.0
V
mA
K
K
mV/V
V
0.8
5
V
Symbol
SR
Parameter
Slew Rate
Settling Time
Mid-scale Transition Glitch
Energy
Test Conditions
Min
Typ
2
8
40
Max
Unit
V/ s
s
nV-S
Note 1:
Note 2:
Note 3:
Linearity is defined from code 110 to 3990 (ICM7563)
Linearity is defined from code 16 to 1023 (ICM7543)
Linearity is defined from code 4 to 255 (ICM7523)
Guaranteed by design; not tested in production
See Applications Information
TIMING CHARACTERISTICS
(V
DD
= 2.7V to 5.5V, all specifications T
MIN
to T
MAX
unless otherwise noted)
Symbol
t
1
t
2
t
3
t
4
t
5
t
6
Parameter
SCK Cycle Time
Data Setup Time
Data Hold Time
CS Rising
Edge
CS Falling Edge to SCK Rising Edge
SCK Falling edge to
CS Pulse Width
Test Conditions
(Note 2)
(Note 2)
(Note 2)
(Note 2)
(Note 2)
(Note 2)
Min
30
10
10
0
15
20
Typ
Max
Unit
ns
ns
ns
ns
ns
ns
4
Rev. A7
ICmic reserves the right to change specifications without prior notice
ICM7563/7543/7523
SERIAL INTERFACE TIMING AND OPERATION DIAGRAM
t
5
t
1
t
4
t
6
CS
SCK
SDI
C3
t
2
t
3
MSB
C2
C1
D0
LSB
Figure 1.
Serial Interface Timing Diagram
CS
(ENABLE
SCK)
(UPDATE
OUTPUT)
SCK
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
SDI
C3
C2
C1
C0
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
MSB
LSB
Figure 2. Serial Interface Operation Diagram
CONTENTS OF INPUT SHIFT REGISTER
DEVICE
BIT
CONTROL WORD
MSB
DATA WORD
LSB
ICM7563
ICM7543
ICM7523
12
10
8
C3
C3
C3
C2
C2
C2
C1
C1
C1
C0
C0
C0
D11 D10
D9
D7
D8
D6
D9
D7
D5
D8
D6
D4
D7
D5
D3
D6
D4
D2
D5
D3
D1
D4
D2
D0
D3
D1
A3
D2
D0
A2
D1
A1
A1
D0
A0
A0
Figure 3.
Contents of Input Shift Register
Rev. A7
ICmic reserves the right to change specifications without prior notice
5
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