Typical operating characteristics (continued) – Rainbow Electronics MAX5547 User Manual
Page 6
MAX5547
Dual, 10-Bit, Current-Sink Output DAC
6
_______________________________________________________________________________________
Typical Operating Characteristics (continued)
(V
DD
= +3.0V, GND = 0, external reference = +2.5V, T
A
= +25°C, unless otherwise noted.)
1.12
1.11
1.10
1.09
1.08
2.5
4.0
3.0
3.5
4.5
5.0
5.5
SUPPLY CURRENT vs. SUPPLY VOLTAGE
MAX5547 toc13
SUPPLY VOLTAGE (V)
I
DD
(mA)
INTERNAL REFERENCE,
CS = SCLK = DIN = GND
1.2
1.0
0.8
0.6
0.4
-40
10
-15
35
60
85
SUPPLY CURRENT
vs. TEMPERATURE
MAX5547 toc14
TEMPERATURE (
°C)
I
DD
(mA)
INTERNAL REFERENCE
EXTERNAL REFERENCE
1.190
1.200
1.195
1.210
1.205
1.215
1.220
0
2
3
1
4
5
6
I
OUT
vs. V
OUT
(1.2mA SETTING)
MAX5547 toc15
OUTPUT VOLTAGE (V)
I
OUT_
(mA)
V
DD
= 5.25V
T
A
= +85
°C
T
A
= -40
°C
T
A
= +25
°C
3.50
3.60
3.55
3.70
3.65
3.75
3.80
0
2
3
1
4
5
6
I
OUT
vs. V
OUT
(3.6mA SETTING)
MAX5547 toc16
OUTPUT VOLTAGE (V)
I
OUT_
(mA)
V
DD
= 5.25V
T
A
= +85
°C
T
A
= -40
°C
T
A
= +25
°C
SUPPLY CURRENT vs. DIGITAL
INPUT VOLTAGE
100
1000
10,000
DIGITAL INPUT VOLTAGE (V)
5
4
3
2
1
0
6
I
DD
(µ
A)
CS, DIN, SCLK SHORTED TOGETHER
V
DD
= 5.25V
V
DD
= 3V
MAX5547 toc17
OUTPUT NOISE vs. FREQUENCY
MAX5547 toc18
FREQUENCY (kHz)
1
0.1
0.02
0.04
0.06
0.08
0.10
0
0.01
10
NOISE (LSB
RMS
/
√
Hz)
1.00
µs/div
SETTLING TIME
(FULL-SCALE POSITIVE STEP)
(I
OUT
= 1.2mA)
MAX5547 toc19
OUT_
500mV/div
SCLK
2V/div
GND
3V
V
PULLUP
= 3V, R
OUT
= 500
Ω, C
OUT
= 10pF
15
16
1.00
µs/div
SETTLING TIME
(FULL-SCALE POSITIVE STEP)
(I
OUT
= 3.6mA)
MAX5547 toc20
OUT_
500mV/div
SCLK
2V/div
GND
3V
V
PULLUP
= 3V,
R
OUT
= 500
Ω,
C
OUT
= 10pF
15
16
1.00
µs/div
SETTLING TIME
(FULL-SCALE NEGATIVE STEP)
(I
OUT
= 1.2mA)
MAX5547 toc21
OUT_
500mV/div
SCLK
2V/div
GND
3V
V
PULLUP
= 3V,
R
OUT
= 500
Ω,
C
OUT
= 10pF
15
16