DAC7800_04 BURR-BROWN [Burr-Brown Corporation], DAC7800_04 Datasheet - Page 4

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

4
DAC7800
DATA INPUT FORMAT
TIMING CHARACTERISTICS
V
DD
Data In
DAC B
MSB
CLK
Bit 0
= +5V, V
PARAMETER
t
t
t
t
t
t
t
t
1
2
3
4
5
6
7
8
— Data Setup Time
— Data Hold Time
— Chip Select to CLK,
— Chip Select to CLK,
— CLK Pulse Width
— Clear Pulse Width
— Update Pulse Width
— CLK Edge to UPD A
Update, Data Setup Time
Update, Data Hold Time
or UPD B
Bit 1
REF A
Bit 2
= V
REF B
UPD B
UPD A
Data In
CLK
Bit 3
(Cont.)
= +10V, T
Bit 4
LSB
Bit
23
Bit 5
A
MINIMUM
= –40 C to +85 C.
15ns
15ns
15ns
40ns
40ns
40ns
40ns
15ns
Bit 6
DAC A Register
Bit 7
UPD A
UPD B
DATA
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
CLK
CLR
CS
Bit 8
DAC7800 Digital Interface Block Diagram
Bit 9
t
3
DAC7800 Data Input Sequence
MSB
Bit
12
Bit 10
t
1
DAC B
www.ti.com
Shift Register
t
LSB
Bit 11
2
24-Bit
Bit 12
MSB
DAC A
t
5
Bit 13
LSB
Bit
11
Bit 14
IH
2
IL
Bit 15
.
DAC B Register
Bit 16
Bit 17
Bit 18
DAC7800, 7801, 7802
t
MSB
8
Bit 19
Bit
0
t
7
Bit 20
SBAS005A
R
t
4
Bit 21
F
Bit 22
t
6
DAC A
Bit 23
LSB
0V
5V
0V
5V
5V
5V