+5 V, Lo w -P o w e r, Vo lt a g e -Ou t p u t ,
S e ria l 1 2 -Bit DACs
18/MAX539
ELECTRICAL CHARACTERISTICS—Single +5V Supply (continued)
(V = +5V ±10%, V = 0V, AGND = DGND = 0V, REFIN = 2.048V (external), RFB = BIPOFF = VOUT (MAX531), C
= 33µF
DD
SS
REFOUT
(MAX531), R = 10kΩ, C = 100pF, T = T
to T , unless otherwise noted.)
L
L
A
MIN
MAX
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
REFERENCE OUTPUT (REFOUT—MAX531 only)
T
= +25°C
2.024
2.017
2.013
2.048
2.072
2.079
2.083
50
A
Reference Output Voltage
Temperature Coefficient
V
= 5.0V
MAX531BC
MAX531BE
V
DD
MAX531AC/AE/AM/BM
MAX531BC/BE
(Note 5)
30
30
TC
ppm/°C
REFOUT
Resistance
R
0.5
2
Ω
REFOUT
Power-Supply Rejection Ratio
Noise Voltage
PSRR
4.5V ≤ V ≤ 5.5V
300
µV/V
µVp-p
DD
e
0.1Hz to 10kHz
400
n
Minimum Required External
Capacitor
C
3.3
2.4
µF
MIN
DIGITAL INPUTS (DIN, SCLK, CS, CLR)
Input High
V
V
V
IH
Input Low
V
0.8
±1
IL
Input Current
I
V
= 0V or V
DD
µA
pF
IN
IN
Input Capacitance
DIGITAL OUTPUT (DOUT)
Output High
C
8
IN
V
I
= 2mA
V
- 1
V
V
SOURCE
DD
OH
Output Low
V
I
= 2mA
0.4
OL
SINK
DYNAMIC PERFORMANCE
Voltage-Output Slew Rate
Voltage-Output Settling Time
Digital Feedthrough
SR
T
= +25°C
0.15
0.25
25
5
V/µs
µs
A
To ±1/2LSB, VOUT = 2V
nV-s
CS = V , DIN = 100kHz
DD
REFIN = 1kHz, 2Vp-p (G = +1 or +2),
code = FFF hex
Signal-to-Noise plus Distortion
SINAD
68
dB
POWER SUPPLY
Positive Supply Voltage
V
4.5
5.5
400
300
V
DD
MAX531
,
260
140
All inputs = 0V or V
output = no load
DD
Power-Supply Current
I
DD
µA
MAX538, MAX539
SWITCHING CHARACTERISTICS
CS Setup Time
t
20
15
0
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
CSS
CSH0
CSH1
t
t
SCLK Fall to CS Fall Hold Time
SCLK Fall to CS Rise Hold Time
SCLK High Width
t
35
35
45
0
CH
SCLK Low Width
t
CL
DS
DH
DO
DIN Setup Time
t
DIN Hold Time
t
DOUT Valid Propagation Delay
CS High Pulse Width
t
C
= 50pF
80
L
t
20
25
50
CSW
t
CLR Pulse Width
CLR
t
CS Rise to SCLK Rise Setup Time
CS1
_______________________________________________________________________________________
3
MAXIM [ MAXIM INTEGRATED PRODUCTS ]
