DAC7800_04 BURR-BROWN [Burr-Brown Corporation], DAC7800_04 Datasheet - Page 6

• Manufacturer Part Number: DAC7800_04
• Description: Dual Monolithic CMOS 12-Bit Multiplying DIGITAL-TO-ANALOG CONVERTERS
• Manufacturer: BURR-BROWN [Burr-Brown Corporation]

LOGIC TRUTH TABLE
6
DAC7802
TIMING CHARACTERISTICS
At V
BLOCK DIAGRAM
CS A
CS B
X = Don’t care.
CSA
WR
X
1
0
1
0
DD
t
t
t
t
t
1
2
3
4
5
= +5V, and T
- Data Setup Time
- Data Hold Time
- Chip Select to Write Setup Time
- Chip Select to Write Hold Time
- Write Pulse Width
19
20
5
CSB
DGND
DAC7802
X
1
1
0
0
PARAMETER
12
V
21
DD
A
means rising edge triggered.
WR
= –40
X
1
0
DB11–DB0
18
o
C to +85
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
o
C.
DAC B
DAC A
DAC B Register
12
12
12
12
DAC A Register
MINIMUM
20ns
15ns
30ns
30ns
0ns
22
23
24
4
2
3
1
I
R
V
V
R
I
AGND
OUT A
OUT B
REF A
REF B
FB A
FB B
www.ti.com
PIN CONFIGURATION
Top View
CSA, CSB
NOTES: (1) All input signal rise and fall times are measured from 10%
to 90% of +5V. t
is
(LSB) DB0
V
DATA
IH
WR
2
+ V
AGND
V
DGND
I
R
CS A
OUT A
REF A
DB1
DB2
DB3
DB4
DB5
FB A
IL
.
R
10
11
12
1
2
3
4
5
6
7
8
9
= t
R
= 5ns. (2) Timing measurement reference level
DAC7802
t
DAC7800, 7801, 7802
3
t
1
t
5
24
23
22
21
20
19
18
17
16
15
14
13
SBAS005A
t
2
I
R
V
V
CS B
WR
DB11 (MSB)
DB10
DB9
DB8
DB7
DB6
OUT B
t
FB B
REF B
DD
4
DIP
5V
0V
5V
5V