Rainbow Electronics MAX5259 - Manual (Page 8)

MAX5258/MAX5259
+3V/+5V, Low-Power, 8-Bit Octal DAC
with Rail-to-Rail Output Buffers
8 _______________________________________________________________________________________
Typical Operating Characteristics (continued)
(T A = +25°C, unless otherwise noted.)
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
0 2 1 3 4 5
SUPPLY CURRENT vs. REFERENCE
VOLTAGE (V DD = +5V)
MAX5258/9 toc10
REFERENCE VOLTAGE (V)
SUPPLY CURRENT (mA)
ALL DAC CODES = FF HEX
ALL DAC CODES = OO HEX
-80
-70
-60
-50
-40
-30
-20
-10
0
0 0.5 1.0 1.5 2.0
THD + NOISE AT DAC OUTPUT vs.
REFERENCE AMPLITUDE
MAX5258/9 toc11
REFERENCE AMPLITUDE (V p-p )
THD + NOISE (dB)
V REF = 20kHz
V REF = 1kHz
V REF = SINE-WAVE
V DD = +3V
CENTERED AT +1.5V
DAC CODE = FF HEX
80kHz LOWPASS FILTER
-70
-55
-60
-65
-50
-45
-40
-35
-30
-25
-20
10 1k 100 10k 100k
THD + NOISE AT DAC OUTPUT vs.
REFERENCE FREQUENCY
MAX5258/9 toc12
FREQUENCY (Hz)
THD + NOISE (dB)
V REF = SINE-WAVE
V DD = +3V
CENTERED AT +1.5V
DAC CODE = FF HEX
500kHz LOWPASS FILTER
V REF = 0.5V p-p
V REF = 1V p-p
V REF = 2V p-p
5
0
-5
-10
-15
-20
-25
-30
-35
-40
-45
1 100 1k 10 10k 100k 1M 10M
REFERENCE INPUT FREQUENCY
RESPONSE
MAX5258/9 toc13
FREQUENCY (Hz)
RELATIVE OUTPUT (dB) V
REF
= 0.1V
p-p
SINE-WAVE
CENTERED AT 2.5V
DAC CODE = FF HEX
V
DD
= +3V
-90
-85
-55
-75
-80
-70
-65
-60
-50
100 1k 10k 100k 1M 10M
REFERENCE FEEDTHROUGH
vs. FREQUENCY
MAX5258/9 toc14
FREQUENCY (Hz)
RELATIVE OUTPUT (dB)
V REF = 3V p-p SINE-WAVE
DAC CODE = OO HEX
V
DD = +3V
OUTA
WORST-CASE 1LSB DIGITAL STEP CHANGE
(POSITIVE)
MAX5258/9 toc15
1 µs/div
3V
0
50mV/div
CS
V DD = +3V
V REF = +2.5V
DAC CODE = 7F TO 80 HEX
NO-LOAD
OUTA
WORST-CASE 1LSB DIGITAL STEP CHANGE
(NEGATIVE)
MAX5258/9 toc16
1 µs/div
3V
0
50mV/div
CS
V DD = +3V
V REF = +2.5V
DAC CODE = 80 TO 7F HEX
NO-LOAD
OUTA
WORST-CASE 1LSB DIGITAL STEP CHANGE
(POSITIVE)
MAX5258/9 toc17
1 µs/div
3V
0
50mV/div
CS
V DD = +5V
V REF = +4.5V
DAC CODE = 7F TO 80 HEX
NO-LOAD