AD5381 Analog Devices, AD5381 Datasheet - Page 8

• Manufacturer Part Number: AD5381
• Description: 40-Channel 12-Bit 3 V/5 V Single-Supply Voltage-Output DAC
• Manufacturer: Analog Devices

Specifications of AD5381

• Resolution (bits): 12bit
• Dac Update Rate: 167kSPS
• Dac Settling Time: 6µs
• Max Pos Supply (v): +5.5V
• Single-supply: Yes
• Dac Type: Voltage Out
• Dac Input Format: Par,Ser,SPI

AD5381
TIMING CHARACTERISTICS
SERIAL INTERFACE TIMING
DVDD = 2.7 V to 5.5 V; AVDD= 4.5 V to 5.5 V or 2.7 V to 3.6 V; AGND = DGND = 0 V;
all specifications T
Table 6.
Parameter
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
1
2
3
4
5
1
2
3
4
5
6
7
7A
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
Guaranteed by design and characterization, not production tested.
All input signals are specified with t
See Figure 2, Figure 3, Figure 4, and Figure 5.
Standalone mode only.
Daisy-chain mode only.
4
4
4
4
5
5
5
1, , 2 3
MIN
to T
Limit at T
33
13
13
13
13
33
10
50
5
4.5
30
670
20
20
100
0
100
8
20
12
20
5
8
20
MAX
, unless otherwise noted.
r
= t
f
= 5 ns (10% to 90% of V
MIN
, T
MAX
TO OUTPUT PIN
Figure 2. Load Circuit for Digital Output Timing
CC
Unit
ns min
ns min
ns min
ns min
ns min
ns min
ns min
ns min
ns min
ns min
ns max
ns max
ns min
ns min
ns max
ns min
ns min
μs typ
ns min
μs max
ns max
ns min
ns min
ns min
) and are timed from a voltage level of 1.2 V.
Rev. B | Page 8 of 40
C
50pF
L
200μA
200μA
Description
SCLK cycle time
SCLK high time
SCLK low time
SYNC falling edge to SCLK falling edge setup time
24
Minimum SYNC low time
Minimum SYNC high time
Minimum SYNC high time in Readback mode
Data setup time
Data hold time
24
BUSY pulse width low (single channel update)
24th SCLK falling edge to LDAC falling edge
LDAC pulse width low
BUSY rising edge to DAC output response time
BUSY rising edge to LDAC falling edge
LDAC falling edge to DAC output response time
DAC output settling time
CLR pulse width low
CLR pulse activation time
SCLK rising edge to SDO valid
SCLK falling edge to SYNC rising edge
SYNC rising edge to SCLK rising edge
SYNC rising edge to LDAC falling edge
th
th
SCLK falling edge to SYNC falling edge
SCLK falling edge to BUSY falling edge
I
I
OL
OH
V
V
OH
OL
(MAX)
(MIN) OR