DS4426T+TR MAXIM [Maxim Integrated Products], DS4426T+TR Datasheet - Page 4

• Manufacturer Part Number: DS4426T+TR
• Description: Quad-Channel, I2C-Margining IDACs with Three Channels of Power-Supply Tracking
• Manufacturer: MAXIM [Maxim Integrated Products]

Quad-Channel, I
Three Channels of Power-Supply Tracking
POWER-SUPPLY TRACKING CHARACTERISTICS
(V
Note 1: All voltages are referenced to GND. Current entering the IC is specified positive, and current exiting the IC is negative.
Note 2: Input resistors (R
Note 3: Supply current specified with all outputs set to zero current setting and with all inputs at V
Note 4: The output-voltage full-scale ranges must be satisfied to ensure the device meets its accuracy and linearity specifications.
Note 5: Temperature drift excludes drift caused by external resistors.
Note 6: Differential linearity is defined as the difference between the expected incremental current increase with respect to position
Note 7: Integral linearity is defined as the difference between the expected value as a function of the setting and the actual value.
Note 8: Timing shown is for fast-mode operation (400kHz). This device is also backward-compatible with I
Note 9: C
4
Input Divider Ratio
Output Load
Feedback Resistor Ratio
Gain Resistor
Gain Setting Ratio
Power-Supply Tracking Gain
Power-Supply Tracking Input
Bias Current
Power-Supply Tracking Input
Voltage
Unity Gain Bandwidth
Output Voltage While Tracking
Output Current While Tracking
Tracking Accuracy
Output Leakage
Comparator Input Bias Current
Comparator Input Offset
Switch Delay
Comparator Hysteresis
CC
_______________________________________________________________________________________
= +2.7V to +5.5V, T
cations.
connected to V
Only applies to current DAC operation, not power-supply tracking operation.
and the actual increase. The expected incremental increase is the full-scale range divided by 127.
The expected value is a straight line between the zero and the full-scale values proportional to the setting.
B
PARAMETER
—Total capacitance of one bus line in pF.
CC
A
FS[3:0]
. Excludes current through R
= -40°C to +85°C, see Figure 5.)
) must be between the specified values to ensure the device meets its accuracy and linearity specifi-
SYMBOL
V
I
OUT:TRK
OUT:TRK
R
R
GBW
V
R
I
V
L
G
V
I
t
F
R
OFF
R
HYS
BC
DC
DIV
I
/R
OS
/R
B
IN
G
VI
L
B
G
2
C-Margining IDACs with
R
R
R
T
R
T
INP[3:1] and INN[3:1]
R
Switch closed, V
OUT[3:1], R
R
V
Switch open
A
A
FB
A
L
L
L
L
L
/R
/R
/R
/R
/R
= (R
= +25°C
= +25°C
= +0.8V
G
G
G
G
B
FS
and R
= 2, R
= 5, R
= 1.4; R
= 1.4, R
F
resistors (I
x R
L
E
C
L
L
= 5k
/R
)/(R
= 5k , V
= 5k , V
L
CONDITIONS
G
D
= 5k
CC
= 1k , V
F
RFS
+R
= +3.0V, measured at
E
). Total current including I
)
CC
CC
CC
= +3.6V,
= +3.6V,
= +3.0V,
MIN
RFS
0.5
0.5
0.8
1.4
3.8
CC
1
0
0
or GND. SDA and SCL are
is I
CC
2
TYP
12.5
2.4
6.2
±5
12
C standard-mode timing.
5
+ (2 x I
RFS
V
±600
MAX
4.5
1.4
1.5
0.5
20
10
10
CC
1
5
1
1
1
).
-
UNITS
mA/V
MHz
mA
mV
mV
mV
k
k
μA
μA
μA
μs
V
V