DAC7802K Burr-Brown Corporation, DAC7802K Datasheet - Page 6

• Manufacturer Part Number: DAC7802K
• Description: Dual Monolithic CMOS 12-Bit Multiplying DIGITAL-TO-ANALOG CONVERTERS
• Manufacturer: Burr-Brown Corporation

DAC7801
DAC7802
LOGIC TRUTH TABLE
BLOCK DIAGRAM
TIMING CHARACTERISTICS
V
CS A
CS B
X = Don’t care.
DD
CSA
WR
X
1
0
1
0
= +5V, V
NOTES: (1) All input signal rise and fall times are measured from 10% to 90% of +5V. t = t = 5ns. (2) Timing measurement reference level is
V + V
19
20
5
PARAMETER
t
t
t
t
t
t
t
t
IH
1
2
3
4
5
6
7
8
CSB
— Address Valid to Write Setup Time
— Address Valid to Write Hold Time
— Data Setup Time
— Data Hold Time
— Chip Select or Update to Write Setup Time
— Chip Select or Update to Write Hold Time
— Write Pulse Width
— Clear Pulse Width
2
DGND
REF A
DAC7802
X
1
1
0
0
12
IL
V
®
21
.
DD
= V
DAC7800, 01, 02
means rising edge triggered.
WR
REF B
X
1
0
(CONT)
DB11–DB0
18
= +10V, T
FUNCTION
No Data Transfer
No Data Transfer
A Rising Edge on CSA or CSB Loads
Data to the Respective DAC
DAC A Register Loaded from Data Bus
DAC B Register Loaded from Data Bus
DAC A and DAC B Registers Loaded
from Data Bus
6
CK
CK
A
= –40 C to +85 C.
DAC B
DAC A
DAC B Register
12
12
12
12
DAC A Register
MINIMUM
22
23
24
2
3
4
1
30ns
10ns
40ns
10ns
10ns
40ns
0ns
0ns
I
R
V
V
R
I
AGND
OUT A
OUT B
REF A
REF B
FB A
FB B
6
CS, UPD
A0–A1
TIMING CHARACTERISTICS
At V
DATA
PIN CONFIGURATION
CLR
WR
CSA, CSB
NOTES: (1) All input signal rise and fall times are measured from 10%
to 90% of +5V. t = t = 5ns. (2) Timing measurement reference level
is
DD
t
t
t
t
t
1
2
3
4
5
V + V
= +5V, and T
DATA
- Data Setup Time
- Data Hold Time
- Chip Select to Write Setup Time
- Chip Select to Write Hold Time
- Write Pulse Width
IH
(LSB) DB0
WR
2
R
AGND
V
DGND
IL
I
R
CS A
OUT A
REF A
PARAMETER
DB1
DB2
DB3
DB4
DB5
.
F
FB A
R
t
1
A
10
11
12
= –40
1
2
3
4
5
6
7
8
9
F
t
5
o
C to +85
t
7
t
DAC7802
Top View
3
t
DIP
3
t
o
1
C.
t
4
t
t
6
t
5
2
24
23
22
21
20
19
18
17
16
15
14
13
MINIMUM
t
t
2
8
20ns
15ns
30ns
30ns
t
4
0ns
I
R
V
V
CS B
WR
DB11 (MSB)
DB10
DB9
DB8
DB7
DB6
OUT B
FB B
REF B
DD
5V
0V
5V
0V
5V
0V
5V
0V
5V
0V
5V
0V
5V
5V