Rainbow Electronics DS4412 - Manual (Page 4)

Pin Description
NAME PIN FUNCTION
SDA 1 I 2 C Serial Data. Input/output for I 2 C data.
SCL 2 I 2 C Serial Clock. Input for I 2 C clock.
FS1 3
FS0 5
Full-Scale Calibration Inputs. A resistor to ground on these pins determines the full-scale current
for each output. FS0 controls OUT0, FS1 controls OUT1.
GND 4 Ground
OUT0 6
OUT1 7
Current Outputs. Sinks or sources the current determined by the register settings and the
resistance connected to FS0 and FS1.
V CC 8 Power Supply
DS4412
Dual-Channel, I
2
C Adjustable
Sink/Source Current DAC
4 _______________________________________________________________________________________
Typical Operating Characteristics
(Applies to OUT0 and OUT1. V CC = 2.7V to 5.0V, SDA = SCL = V CC , T A = +25°C, and no loads on OUT0, OUT1, FS0, or FS1, unless
otherwise noted.)
SUPPLY CURRENT
vs. TEMPERATURE
DS4412 toc02
TEMPERATURE ( °C)
SUPPLY CURRENT (mA)
80 60 40 20 0 -20
0.05
0.10
0.15
0.20
0.25
0.30
0.35
0
-40
V CC = 5.0V
V CC = 3.3V
V CC = 2.7V
DOES NOT INCLUDE CURRENT DRAWN BY
RESISTORS CONNECTED TO FS0 AND FS1.
VOLTCO (SOURCE)
DS4412 toc03
V OUT (V)
I OUT
(mA)
4 3 2 1
2.1
2.2
2.3
2.4
2.5
2.0
0 5
2.2k Ω LOAD ON FS0 AND FS1
SUPPLY CURRENT
vs. SUPPLY VOLTAGE
DS4412 toc01
SUPPLY VOLTAGE (V)
SUPPLY CURRENT (mA)
5.2 4.7 4.2 3.7 3.2
0.1
0.2
0.3
0.4
0.5
0
2.7
DOES NOT INCLUDE CURRENT DRAWN BY
RESISTORS CONNECTED TO FS0 AND FS1.
VOLTCO (SINK)
DS4412 toc04
V OUT (V)
I OUT
(mA)
3 2 1
-2.4
-2.3
-2.2
-2.1
-2.0
-2.5
0 4
2.2k Ω LOAD ON FS0 AND FS1
TEMPERATURE COEFFICIENT
vs. SETTING (SOURCE)
DS4412 toc05
SETTING (DEC)
TEMPERATURE COEFFICIENT (
°C/ppm)
10 5
10
20
30
40
50
60
70
80
0
0 15
+25 °C TO -40°C
+25 °C TO +85°C
RANGE FOR THE 0.5mA TO 2.0mA
CURRENT-SOURCE RANGE.
TEMPERATURE COEFFICIENT
vs. SETTING (SINK)
DS4412 toc06
SETTING (DEC)
TEMPERATURE COEFFICIENT (
°C/ppm)
10 5
10
20
30
40
50
60
70
80
0
0 15
+25 °C TO -40°C
+25 °C TO +85°C
RANGE FOR THE 0.5mA TO 2.0mA
CURRENT-SOURCE RANGE.