Datasheet

MAX531/MAX538/MAX539
+5V, Low-Power, Voltage-Output,
Serial 12-Bit DACs
_______________________________________________________________________________________ 3
ELECTRICAL CHARACTERISTICS—Single +5V Supply (continued)
(V
DD
= +5V ±10%, V
SS
= 0V, AGND = DGND = 0V, REFIN = 2.048V (external), RFB = BIPOFF = VOUT (MAX531), C
REFOUT
= 33µF
(MAX531), R
L
= 10kΩ, C
L
= 100pF, T
A
= T
MIN
to T
MAX
, unless otherwise noted.)
PARAMETER
Input Current
SYMBOL MIN TYP MAX
I
IN
±1
UNITS
Noise Voltage e
n
µA
400
Input Capacitance C
IN
µVp-p
Power-Supply Rejection Ratio
8
PSRR 300 µV/V
Resistance R
REFOUT
0.5 2
pF
Ω
Temperature Coefficient TC
REFOUT
30 50
ppm/°C
Minimum Required External
Capacitor
C
MIN
3.3 µF
Output High
Input High
V
OH
V
IH
2.4
V
DD
- 1
V
Input Low
V
V
IL
0.8 V
Output Low V
OL
0.4 V
Voltage-Output Slew Rate SR 0.15 0.25 V/µs
Voltage-Output Settling Time 25 µs
Digital Feedthrough
2.024 2.048 2.072
5 nV-s
Signal-to-Noise plus Distortion SINAD 68 dB
260 400
CONDITIONS
V
IN
= 0V or V
DD
0.1Hz to 10kHz
4.5V ≤ V
DD
≤ 5.5V
(Note 5)
MAX531AC/AE/AM/BM
I
SOURCE
= 2mA
I
SINK
= 2mA
T
A
= +25°C
To ±1/2LSB, VOUT = 2V
CS = V
DD
, DIN = 100kHz
REFIN = 1kHz, 2Vp-p (G = +1 or +2),
code = FFF hex
Power-Supply Current I
DD
All inputs = 0V or V
DD
,
output = no load
140 300
µA
CS Setup Time
t
CSS
20 ns
SCLK Fall to CS Fall Hold Time
t
CSH0
15 ns
SCLK Fall to CS Rise Hold Time
t
CSH1
0 ns
SCLK High Width t
CH
35 ns
SCLK Low Width t
CL
35 ns
DIN Setup Time t
DS
45 ns
DIN Hold Time t
DH
0 ns
DOUT Valid Propagation Delay t
DO
C
L
= 50pF 80 ns
CS High Pulse Width
t
CSW
20 ns
CLR Pulse Width
t
CLR
25 ns
MAX531BC/BE
MAX531
MAX538, MAX539
30
2.017 2.079
Reference Output Voltage V
2.013 2.083
V
DD
= 5.0V
CS Rise to SCLK Rise Setup Time
t
CS1
50 ns
T
A
= +25°C
MAX531BC
MAX531BE
Positive Supply Voltage V
DD
4.5 5.5 V
REFERENCE OUTPUT (REFOUT—MAX531 only)
DIGITAL INPUTS (DIN, SCLK, CS, CLR)
DIGITAL OUTPUT (DOUT)
DYNAMIC PERFORMANCE
POWER SUPPLY
SWITCHING CHARACTERISTICS