MAX5102
+2.7V to +5.5V, Low-Power, Dual, Parallel
8-Bit DAC with Rail-to-Rail Voltage Outputs
_______________________________________________________________________________________
5
-80
-60
-70
-50
-20
-10
-30
-40
0
1
10
100
TOTAL HARMONIC DISTORTION
PLUS NOISE AT DAC OUTPUT
vs. REFERENCE FREQUENCY
MAX5102
toc07
FREQUENCY (kHz)
THD
+
NOISE
(dB)
DAC CODE = FF HEX
VREF = SINE WAVE CENTERED AT 1.5V
1kHz FREQUENCY
500kHz FILTER
REF = 1Vp-p
REF = 2Vp-p
REF = 0.5Vp-p
0
-90
0.01
10
1
0.1
REFERENCE INPUT
FREQUENCY RESPONSE
-60
-80
-20
-40
10
-50
-70
-10
-30
MAX5100
toc08
FREQUENCY (MHz)
OUTPUT
AMPLITUDE
(dB)
CODE = FF HEX REF IS IVp-p SIGNAL
VREF = 1.5V
2
1
WORST-CASE 1LSB DIGITAL STEP CHANGE
(NEGATIVE)
MAX55102
toc09
2
s/div
CH1 = WR, 1V/div, CH2 = VOUTA, 50mV/div, AC-COUPLED
DAC CODE FROM 80 TO 7F HEX
2
1
WORST-CASE 1LSB DIGITAL STEP CHANGE
(POSITIVE)
MAX55102
toc10
1
s/div
CH1 = WR, 1V/div, CH2 = VOUTA, 50mV/div, AC-COUPLED
DAC CODE FROM 7F TO 80 HEX
2
1
DIGITAL FEEDTHROUGH GLITCH IMPULSE
(0 TO 1 DIGITAL TRANSITION)
MAX55102
toc11
20ns/div
CH1 = D7, 2V/div, CH2 = VOUTA, 1mV/div
0 TO 1 DIGITAL TRANSITION ON
ALL DATA BITS (WITH WR HIGH)
2
1
DIGITAL FEEDTHROUGH GLITCH IMPULSE
(1 TO 0 DIGITAL TRANSITION)
MAX55102
toc12
20ns/div
1 TO 0 DIGITAL TRANSITION ON
ALL DATA BITS (WITH WR HIGH)
CH1 = D7, 2V/div, CH2 = VOUTA, 1mV/div
2
1
POSITIVE SETTLING TIME
MAX55102
toc13
1
s/div
CH1 = WR = 2V/div, CH2 = VOUTA = 2V/div
DAC CODE FROM 10 TO F0 HEX
2
1
NEGATIVE SETTLING TIME
MAX55102
toc14
1
s/div
CH1 = WR, 2V/div, CH2 = VOUTA, 2V/div
DAC CODE FROM F0 TO 10 HEX
0.5
0.4
0.3
0.2
0.1
0
-0.1
-0.2
-0.3
-0.4
-0.5
0
32
64
96
128
160 192
224 256
INTEGRAL AND DIFFERENTIAL
NONLINEARITY vs. DIGITAL CODE
MAX5102
toc15
DIGITAL CODE
INL/DNL
(LSB)
RL =
DNL
INL
Typical Operating Characteristics (continued)
(VDD = VREF = +3V, RL = 10k
, CL = 100pF, code = FF hex, TA = +25°C, unless otherwise noted.)
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