AD7805 Analog Devices, AD7805 Datasheet - Page 4

• Manufacturer Part Number: AD7805
• Description: +3.3 V to +5 V Quad/Octal 10-Bit DAC
• Manufacturer: Analog Devices

Specifications of AD7805

• Resolution (bits): 10bit
• Dac Update Rate: 667kSPS
• Dac Settling Time: 1.5µs
• Max Pos Supply (v): +5.5V
• Single-supply: Yes
• Dac Type: Voltage Out
• Dac Input Format: Par

AD7804/AD7805/AD7808/AD7809
Internal Reference. All specifications T
Parameter
t
t
t
t
t
t
t
t
t
t
NOTES
1
Specifications subject to change without notice.
AD7804/AD7808 TIMING CHARACTERISTICS
Sample tested during initial release and after any redesign or process change that may affect this parameter. All input signals are specified with tr = tf = 5 ns and
1
2
3
4
5
6
6A
7
8
9
timed from a voltage of (V
CLKIN(I)
FSIN(I)
LDAC 1
LDAC 2
SDIN(I)
CLR
1
2
TIMING REQUIREMENTS FOR SYNCHRONOUS LDAC UPDATE OR LDAC MAY BE TIED PERMANENTLY LOW IF REQUIRED.
TIMING REQUIREMENTS FOR ASYNCHRONOUS LDAC UPDATE.
IL
+ V
Limit at T
All Versions
100
40
40
30
30
5
6
90
20
40
100
IH
)/2.
DB15
t
t
5
4
t
MIN
6
MIN
Figure 1. Timing Diagram for AD7804 and AD7808
to T
, T
MAX
MAX
unless otherwise noted.)
t
2
t
1
t
3
DB0
t
5
–4–
t
7
1
Units
ns min
ns min
ns min
ns min
ns min
ns min
ns min
ns max
ns min
ns min
ns min
(V
t
9
DD
t
6A
= 3.3 V
t
8
10% to 5 V
t
8
10%; AGND = DGND = 0 V; Reference =
Description
CLKIN Cycle Time
CLKIN High Time
CLKIN Low Time
FSIN Setup Time
Data Setup Time
Data Hold Time
LDAC Hold Time
FSIN Hold Time
LDAC, CLR Pulsewidth
LDAC Setup Time
REV. A