DS4432 View Datasheet(PDF) - Maxim Integrated
Part Name
Description
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DS4432 Datasheet PDF : 9 Pages
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Dual-Channel, I2C, 7-Bit Sink/Source
Current DAC
NAME
SDA
SCL
FS1
FS0
GND
OUT0
OUT1
VCC
Pin Description
PIN
FUNCTION
1
I2C Serial Data. Input/output for I2C data.
2
I2C Serial Clock. Input for I2C clock.
3
Full-Scale Calibration Inputs. A resistor to ground on these pins determines the full-scale current
5
for each output. FS0 controls OUT0; FS1 controls OUT1.
4
Ground
6
Current Outputs. Sinks or sources the current determined by the register settings and the
7
resistance connected to FS0 and FS1.
8
Power Supply
Typical Operating Characteristics
(Applies to OUT0 and OUT1. VCC = 2.7V to 5.0V, SDA = SCL = VCC, TA = +25°C, and no loads on OUT0, OUT1, FS0, or FS1, unless
otherwise noted.)
SUPPLY CURRENT
vs. SUPPLY VOLTAGE
150
DOES NOT INCLUDE CURRENT DRAWN BY
RESISTORS CONNECTED TO FS0 OR FS1.
125
100
SUPPLY CURRENT
vs. TEMPERATURE
150
DOES NOT INCLUDE CURRENT DRAWN BY
RESISTORS CONNECTED TO FS0 OR FS1.
125
100
VOLTCO (SOURCE)
-150
40kΩ LOAD ON FS0 AND FS1.
-175
75
75
VCC = 5.5V
-200
VCC = 2.7V
50
50
VCC = 3.3V
-225
25
25
0
2.5 3.0 3.5 4.0 4.5 5.0 5.5
SUPPLY VOLTAGE (V)
VOLTCO (SINK)
250
40kΩ LOAD ON FS0 AND FS1.
225
200
175
150
0
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
VOUT (V)
0
-40 -20 0 20 40 60 80
TEMPERATURE (°C)
TEMPERATURE COEFFICIENT
vs. SETTING (SOURCE)
300
RANGE FOR THE 50μA TO 200μA CURRENT
250 SOURCE RANGE.
200
150
+25°C TO -40°C
100
50
0
-50
0
+25°C TO +85°C
25
50
75 100 125
SETTING (DEC)
-250
0
1
2
3
4
5
VOUT (V)
TEMPERATURE COEFFICIENT
vs. SETTING (SINK)
650
RANGE FOR THE 50μA TO 200μA CURRENT
550 SINK RANGE.
450
350
250
150
+25°C TO -40°C
50
-50
+25°C TO +85°C
-150
-250
0
25
50
75 100 125
SETTING (DEC)
4 _______________________________________________________________________________________
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