Datasheet

MAX531/MAX538/MAX539
+5V, Low-Power, Voltage-Output,
Serial 12-Bit DACs
4 _______________________________________________________________________________________
PARAMETER SYMBOL MIN TYP MAX UNITS
Bipolar Offset Error V
OS
±8
Gain Error (Unipolar or Bipolar) GEU
LSB
Differential Nonlinearity
±1
DNL ±1 LSB
Relative Accuracy INL
LSB
LSB
±1
Gain-Error Tempco
Bipolar Offset Tempco TCV
OS
3 ppm/°C
1 ppm/°C
Power-Supply Rejection Ratio
(Note 3)
PSRR 0.4 1 LSB/V
Voltage Range
Resolution
V
SS
+ 2 V
DD
- 2
N 12
V
Input Resistance
Bits
40 kΩ
Input Capacitance
±0.5
10 50 pF
AC Feedthrough -80 dB
CONDITIONS
BIPOFF = REFIN, MAX531_C/E
MAX531_C/E
Guaranteed monotonic
Tested at V
DD
= 5V,
V
SS
= -5V
BIPOFF = REFIN
4.5V ≤ V
DD
≤ 5.5V, -5.5V ≤ V
SS
≤ -4.5V
Code dependent, minimum at code 555 hex
Code dependent (Note 4)
REFIN = 1kHz, 2.0Vp-p
ELECTRICAL CHARACTERISTICS—Dual Supplies (MAX531 Only)
(V
DD
= +5V ±10%, V
SS
= -5V ±10%, AGND = DGND = 0V, REFIN = 2.048V (external), RFB = BIPOFF = VOUT, C
REFOUT
= 33µF,
R
L
= 10kΩ, C
L
= 100pF, T
A
= T
MIN
to T
MAX
, unless otherwise noted.)
MAX531AC/E
MAX531BC/E
2.024 2.048 2.072
MAX531AC/AE/AM/BM 30 50
Temperature Coefficient TC
REFOUT
MAX531BC/BE 30
ppm/°C
Resistance R
REFOUT
(Note 5) 0.5 2 Ω
Power-Supply Rejection Ratio PSRR 4.5V ≤ V
DD
≤ 5.5V 300 µV/V
e
n
0.1Hz to 10kHz 400 µVp-pNoise Voltage
Minimum Required External
Capacitor
C
MIN
3.3 µF
Input High V
IH
2.4 V
Input Low V
IL
0.8 V
Input Current I
IN
V
IN
= 0V or V
DD
±1 µA
Input Capacitance C
IN
8 pF
Output High V
OH
I
SOURCE
= 2mA V
DD
- 1 V
Output Low V
OL
I
SINK
= 2mA 0.4 V
2.017 2.079
V
DD
= 5.0V
2.013 2.083
VReference Output Voltage
T
A
= +25°C
MAX531BC
MAX531BE
REFERENCE INPUT (REFIN)
REFERENCE OUTPUT (REFOUT—MAX531 only)
DIGITAL INPUTS (DIN, SCLK, CS)
DIGITAL OUTPUT (DOUT)