Rainbow Electronics MAX5102 - Manual (Page 5)

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
V
REF
= SINE WAVE CENTERED AT 1.5V
1kHz FREQUENCY
500kHz FILTER
REF = 1V p-p
REF = 2V
p-p
REF = 0.5V p-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 IV p-p SIGNAL
V REF = 1.5V
2
1
WORST-CASE 1LSB DIGITAL STEP CHANGE
(NEGATIVE)
MAX55102 toc09
2 µs/div
CH1 = WR, 1V/div, CH2 = V OUTA , 50mV/div, AC-COUPLED
DAC CODE FROM 80 TO 7F HEX
2
1
WORST-CASE 1LSB DIGITAL STEP CHANGE
(POSITIVE)
MAX55102 toc10
1 µs/div
CH1 = WR, 1V/div, CH2 = V OUTA , 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 = V OUTA , 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 = V OUTA , 1mV/div
2
1
POSITIVE SETTLING TIME
MAX55102 toc13
1 µs/div
CH1 = WR = 2V/div, CH2 = V OUTA = 2V/div
DAC CODE FROM 10 TO F0 HEX
2
1
NEGATIVE SETTLING TIME
MAX55102 toc14
1 µs/div
CH1 = WR, 2V/div, CH2 = V OUTA , 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)
R L = ∞
DNL
INL
Typical Operating Characteristics (continued)
(V
DD
= V
REF
= +3V, R
L
= 10k Ω, C
L
= 100pF, code = FF hex, T
A
= +25°C, unless otherwise noted.)