DAC8248 Analog Devices, DAC8248 Datasheet - Page 3

• Manufacturer Part Number: DAC8248
• Description: Dual 12-Bit (8-Bit Byte) Double-Buffered CMOS D/A Converter
• Manufacturer: Analog Devices

Specifications of DAC8248

• Resolution (bits): 12bit
• Dac Update Rate: 1MSPS
• Dac Settling Time: 1µs
• Max Pos Supply (v): +15.75V
• Single-supply: Yes
• Dac Type: Current Out
• Dac Input Format: Byte

REV. B
Parameter
Switching Characteristics
LSB/MSB Select to
LSB/MSB Select to
DAC Select to
DAC Select to
LDAC to
LDAC to
Data Valid to
Data Valid to
Write Pulse Width
LDAC Pulse Width
Reset Pulse Width
NOTES
11
12
13
14
15
16
17
18
19
10
Specifications subject to change without notice.
Measured using internal R
Guaranteed and not tested.
Gain TC is measured from +25 C to T
Absolute Temperature Coefficient is approximately +50 ppm/ C.
From 50% of digital input to 90% of final analog output current. V
WR, LDAC = 0 V; DB0–DB7 = 0 V to V
Settling time is measured from 50% of the digital input change to where the output settles within 1/2 LSB of full scale.
See Timing Diagram.
These limits apply for the commercial and industrial grade products.
These limits also apply as typical values for V
(Notes 2, 8)
Write Set-Up Time
Write Hold Time
Write Set-Up Time
Write Hold Time
Write Set-Up Time
Write Hold Time
Write Set-Up Time
Write Hold Time
FB A
and R
Symbol
t
t
t
t
t
t
t
t
t
t
t
FB B
CBS
CBH
AS
AH
LS
LH
DS
DH
WR
LWD
RWD
MIN
. Both DAC digital inputs = 1111 1111 1111.
DD
or from +25 C to T
or V
DD
= +12 V with +5 V CMOS logic levels and T
DD
to 0 V.
Conditions
MAX
.
REF A
Burn-In Circuit
= V
REF B
+25 C –40 C to +85 C
130
0
180
0
120
0
160
0
130
100
80
–3–
= +10 V; OUT A, OUT B load = 100
V
(Note 9)
170
0
210
0
150
0
210
0
150
110
90
DD
= +5 V
A
= +25 C.
DAC8248
–55 C to +125 C All Temps
180
0
220
0
160
0
220
0
170
130
90
, C
EXT
= 13 pF.
V
(Note 10)
80
0
80
0
80
0
70
10
90
60
60
DD
= +15 V
DAC8248
Units
ns min
ns min
ns min
ns min
ns min
ns min
ns min
ns min
ns min
ns min
ns min