+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
ELECTRICAL CHARACTERISTICS—Dual Supplies (MAX531 Only)
(V = +5V ±10%, V = -5V ±10%, AGND = DGND = 0V, REFIN = 2.048V (external), RFB = BIPOFF = VOUT, C = 33µF,
DD
SS
REFOUT
R = 10kΩ, C = 100pF, T = T
to T , unless otherwise noted.)
MAX
L
L
A
MIN
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Resolution
N
12
Bits
MAX531AC/E
MAX531BC/E
±0.5
±1
Tested at V = 5V,
DD
Relative Accuracy
INL
LSB
V
= -5V
SS
Differential Nonlinearity
Bipolar Offset Error
DNL
Guaranteed monotonic
±1
LSB
LSB
V
OS
BIPOFF = REFIN, MAX531_C/E
BIPOFF = REFIN
±8
Bipolar Offset Tempco
TCV
3
ppm/°C
LSB
OS
Gain Error (Unipolar or Bipolar)
Gain-Error Tempco
GEU
MAX531_C/E
±1
1
1
ppm/°C
Power-Supply Rejection Ratio
(Note 3)
PSRR
4.5V ≤ V ≤ 5.5V, -5.5V ≤ V ≤ -4.5V
0.4
LSB/V
DD
SS
REFERENCE INPUT (REFIN)
Voltage Range
V
SS
+ 2
V
DD
- 2
V
Input Resistance
Code dependent, minimum at code 555 hex
Code dependent (Note 4)
40
kΩ
pF
dB
Input Capacitance
AC Feedthrough
10
50
REFIN = 1kHz, 2.0Vp-p
-80
REFERENCE OUTPUT (REFOUT—MAX531 only)
18/MAX539
T
= +25°C
2.024
2.017
2.013
2.048
2.072
2.079
2.083
50
A
MAX531BC
MAX531BE
Reference Output Voltage
Temperature Coefficient
V
= 5.0V
V
DD
MAX531AC/AE/AM/BM
MAX531BC/BE
(Note 5)
30
30
TC
ppm/°C
REFOUT
Resistance
R
0.5
2
Ω
REFOUT
PSRR
Power-Supply Rejection Ratio
Noise Voltage
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)
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
DD
V
V
OH
SOURCE
Output Low
V
I
= 2mA
0.4
OL
SINK
4
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MAXIM [ MAXIM INTEGRATED PRODUCTS ]
