Rainbow Electronics MAX5121 - Manual (Page 5)

MAX5120/MAX5121
+3V/+5V, 12-Bit, Serial Voltage-Output DACs
with Internal Reference
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Note 1: Accuracy is guaranteed as shown in the following table:
Note 2: Offset is measured at the code closest to 10mV.
Note 3: The temperature coefficient is determined by the “box” method in which the maximum
∆
V OUT over the temperature range is
divided by
∆
T.
Note 4: Accuracy is better than 1.0LSB for V OUT = 10mV to (V DD - 180mV). Guaranteed by PSR test on end points.
Note 5: R LOAD =
∞
and digital inputs are at either V DD or DGND.
TIMING CHARACTERISTICS—MAX5121 (+3V)
(V DD = +3V ±10%, OS = AGND = DGND = 0V, 33nF capacitor at REFADJ, internal reference, R L = 5k
Ω
, C L = 100pF, T A = T MIN to
T MAX , unless otherwise noted. Typical values are at T A = +25°C.)
ns 60 t CSS
CS Fall to SCLK Rise Setup Time
ns 150
ns
C LOAD = 200pF
75
t CSW
t CL SCLK Pulse Width Low
CONDITIONS
ns 150 t CP SCLK Clock Period
ns 75 t CH SCLK Pulse Width High
ns 0 t CSH SCLK Rise to CS Rise Hold Time
CS Pulse Width High
ns 75 t CS1
CS Rise to SCLK Rise Hold Time
C LOAD = 200pF ns 200 t DO1
SCLK Rise to DOUT Valid
Propagation Delay Time
ns 200 t DO2
SCLK Fall to DOUT Valid
Propagation Delay Time
ns 10 t CS0 SCLK Rise to CS Fall Delay Time
ns 60 t DS SDI Setup Time
ns 0 t DH SDI Hold Time
UNITS MIN TYP MAX SYMBOL PARAMETER
10 5
20 3
4095
4095
Accuracy Guaranteed
To Code: From Code:
V DD
(V)
Typical Operating Characteristics
(V DD = +5V (MAX5120), V DD = +3V (MAX5121), R L = 5k
Ω
, C L = 100pF, OS = AGND, T A = +25°C, unless otherwise noted.)
-0.20
-0.15
-0.10
-0.05
0
0.05
0.10
0.15
0.20
0 1000 2000 3000 4000 5000
MAX5120
INTEGRAL NONLINEARITY vs.
DIGITAL INPUT CODE
MAX5120/21 toc01
DIGITAL INPUT CODE
INL (LSB)
-0.20
-0.15
-0.10
-0.05
0
0.05
0.10
0.15
0.20
0 1000 2000 3000 4000 5000
MAX5120
DIFFERENTIAL NONLINEARITY vs.
DIGITAL INPUT CODE
MAX5120/21 toc02
DIGITAL INPUT CODE
DNL (LSB)
2.490
2.495
2.500
2.505
2.510
-60 -20 20 60 -40 0 40 80 100
MAX5120
REFERENCE VOLTAGE vs. TEMPERATURE
MAX5120/21 toc03
TEMPERATURE (°C)
REFERENCE VOLTAGE (V)