max5259 Maxim Integrated Products, Inc., max5259 Datasheet - Page 8

• Manufacturer Part Number: max5259
• Description: +3v/+5v, Low-power, 8-bit Octal Dacs With Rail-to-rail Output Buffers
• Manufacturer: Maxim Integrated Products, Inc.

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