User guide

DS4426
Quad-Channel, I
2
C-Margining IDACs with
Three Channels of Power-Supply Tracking
_______________________________________________________________________________________ 3
DAC OUTPUT CURRENT CHARACTERISTICS (continued)
(V
CC
= +2.7V to +5.5V, T
A
= -40°C to +85°C.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Output Voltage for Sinking
Current
V
OUT:SINK
(Note 4) 0.5 3.5 V
Output Voltage for Sourcing
Current
V
OUT:SOURCE
(Note 4) 0
V
CC
-
0.75
V
Full-Scale Sink Output Current I
OUT:SINK
(Note 4) 50 200 μA
Full-Scale Source Output Current I
OUT:SOURCE
(Note 4) -200 -50 μA
Output-Current Full-Scale
Accuracy
I
OUT:FS
T
A
= +25°C ±5 %
Output-Current Temperature
Coefficient
I
OUT:TC
(Note 5) ±130 ppm/°C
Output-Current Power-Supply
Rejection Ratio
0.33 %/V
Output-Leakage Current at Zero
Current Setting
I
ZERO
-1 +1 μA
Output-Current Differential
Linearity
DNL (Note 6) 0.5 LSB
Output-Current Integral Linearity INL (Note 7) 1 LSB
I
2
C ELECTRICAL CHARACTERISTICS
(V
CC
= +2.7V to +5.5V, T
A
= -40°C to +85°C. Timing referenced to V
IL(MAX)
and V
IH(MIN)
. See Figure 6.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
SCL Clock Frequency f
SCL
(Note 8) 0 400 kHz
Bus Free Time Between STOP
and START Conditions
t
BUF
1.3 μs
Hold Time (Repeated) START
Condition
t
HD:STA
0.6 μs
Low Period of SCL t
LOW
1.3 μs
High Period of SCL t
HIGH
0.6 μs
Data Hold Time t
HD:DAT
0 0.9 μs
Data Setup Time t
SU:DAT
100 ns
START Setup Time t
SU:STA
0.6 μs
SDA and SCL Rise Time t
R
(Note 9)
20 +
0.1C
B
300 ns
SDA and SCL Fall Time t
F
(Note 9)
20 +
0.1C
B
300 ns
STOP Setup Time t
SU:STO
0.6 μs
SDA and SCL Capacitive
Loading
C
B
(Note 9) 400 pF