max5235 Maxim Integrated Products, Inc., max5235 Datasheet - Page 6

• Manufacturer Part Number: max5235
• Description: Single-supply 3v/5v, Voltage-output, Dual, Precision 12-bit Dacs
• Manufacturer: Maxim Integrated Products, Inc.

Single-Supply 3V/5V, Voltage-Output, Dual,
Precision 12-Bit DACs
TIMING CHARACTERISTICS—MAX5234 (FIGURES 1 AND 2)
(V
Note 1: Accuracy is guaranteed in the following way:
Note 2: Offset is measured at the code closest to 10mV.
Note 3: Gain from V
Note 4: DC crosstalk is measured as follows: set DAC A to midscale, and DAC B to zero, and measure DAC A output; then change
Note 5: The DAC output voltage is derived by gaining up V
Note 6: Accuracy is better than 1LSB for V
Note 7: Guaranteed by design. Not production tested.
Note 8: R
Note 9: This timing requirement applies only to CS rising edges, which execute commands modifying the DAC input register contents.
6
SCLK Clock Period
SCLK Pulse Width High
SCLK Pulse Width Low
CS Fall to SCLK Rise Setup Time
SCLK Rise to CS Rise Hold Time
DIN Setup Time
DIN Hold Time
SCLK Rise to CS Fall Delay
CS Rise to SCLK Rise Hold Time
CS Pulse Width High
LDAC Pulse Width Low
CS Rise to LDAC Rise Hold Time
DD
_______________________________________________________________________________________
= +2.7V to +3.6V, GND = 0, T
DAC B to full scale and measure ∆V
DC crosstalk is the maximum ∆V
exceed the supplies. The maximum value of V
scale. The minimum V
LOAD
PARAMETER
V
DD
3
5
= ∞ and digital inputs are at either V
REF
V
1.250
2.500
REF
_ to V
_
OUT
REF
ACCURACY GUARANTEED FROM CODE
_ is typically 1.638 x CODE/4096.
value of 0.25V is determined by linearity constraints, not DAC functionality.
A
SYMBOL
= T
t
t
t
t
CSLD
t
t
t
CSW
t
CSH
t
t
t
CSS
t
CS0
CS1
LDL
MIN
CH
DH
CP
CL
DS
OUT
OUT
OUT
to T
measured.
= 10mV to V
MAX
(Note 9)
for DAC A. Repeat the same measurement with DAC A and DAC B interchanged.
DD
, unless otherwise noted. Typical values are at T
20
10
REF
or GND. V
in the reference input range spec prevents this from happening at full
REF
DD
- 180mV.
by 1.638 x CODE/4096. This gain factor may cause V
CONDITIONS
OUT
= full-scale output voltage.
TO CODE
4095
4095
MIN
74
30
30
30
30
10
30
75
30
75
0
0
A
= +25°C.)
TYP
OUT
MAX
to try to
UNITS
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns