DAC8420 Analog Devices, DAC8420 Datasheet - Page 13

• Manufacturer Part Number: DAC8420
• Description: Quad 12-Bit Serial Voltage Output DAC
• Manufacturer: Analog Devices

Specifications of DAC8420

• Resolution (bits): 12bit
• Dac Update Rate: 125kSPS
• Dac Settling Time: 8µs
• Max Pos Supply (v): +15.75V
• Single-supply: Yes
• Dac Type: Voltage Out
• Dac Input Format: Ser

+5V/DIV
–25V
CLR
25V
–10
–20
–30
LD
–33.6µs
100
10
90
80
70
60
50
40
30
20
10
0
0
0
10
10
T
DATA = 0x000
V
V
V
V
T
V
V
V
V
ALL BITS HIGH 200mV p-p
A
DD
SS
VREFHI
VREFLO
A
DD
SS
VREFHI
VREFLO
= +25°C
= +25°C
= –15V
= –15V
= +15V ±1V
SR
= +15V
100
RISE
= 0 ±100mV
= +10V
100
= –10V
= –10V
Figure 25. Small-Signal Response
Figure 26. PSRR vs. Frequency
= 1.9
Figure 24. Slew Rate (±15 V)
T
V
V
V
V
1k
µs
V
A
DD
SS
VREFHI
VREFLO
FREQUENCY (Hz)
= +25°C
FREQUENCY (Hz)
= –15V
= +15V
1k
20µs/DIV
= +10V
= –10V
10k
10k
SR
100k
FALL
= 2.02
100k
1M
µs
V
166.4µs
10M
1M
Rev. B | Page 13 of 24
–2
–4
–6
10
6
4
2
0
8
6
4
2
0
–75
10
Figure 27. Power Supply Current vs. Temperature
Figure 29. Output Swing vs. Load Resistance
VOUTA THROUGH VOUTD
T
V
V
V
V
DATA = 0x800
Figure 28. DAC Output Current vs. VOUTx
A
DD
SS
VREFHI
VREFLO
V
V
V
V
ALL DACS HIGH (FULL SCALE)
DD
SS
VREFHI
VREFLO
= +25°C
= –15V
= +15V
= +15V
= –15V
= +10V
= –10V
= +10V
= –10V
100
LOAD RESISTANCE (Ω)
0
TEMPERATURE (°C)
5V/DIV
T
V
V
V
V
DATA = 0xFFF OR 0x000
A
DD
SS
VREFHI
VREFLO
= +25°C
= –15V
= +15V
75
1k
= +10V
= –10V
DAC8420
I
I
DD
SS
150
10k