LTC1446/LTC1446L
ELECTRICAL CHARACTERISTICS
The ● denotes the specifications which apply over the full operating temperature range. VCC = 4.5V to 5.5V (LTC1446), 2.7V to 5.5V
(LTC1446L), VOUT A and VOUT B unloaded, TA = TMIN to TMAX, unless otherwise noted.
SYMBOL
Op Amp DC Performance
Short-Circuit Current Low
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
V
V
Shorted to GND
●
●
●
55
70
40
120
120
160
mA
mA
Ω
OUT
Short-Circuit Current High
Output Impedance to GND
Shorted to V
CC
OUT
Input Code = 0
AC Performance
Voltage Output Slew Rate
(Note 3)
●
0.5
1
V/µs
µs
Voltage Output Settling Time
(Notes 3, 4) to ±0.5LSB
14
The ● denotes the specifications which apply over the full operating temperature range.VCC = 5V (LTC1446), VCC = 3V (LTC1446L),
TA = TMIN to TMAX, unless otherwise noted.
LTC1446
MIN TYP MAX
LTC1446L
MIN TYP MAX
SYMBOL
PARAMETER
CONDITIONS
UNITS
Digital I/O
V
V
V
V
Digital Input High Voltage
Digital Input Low Voltage
Digital Output High Voltage
Digital Output Low Voltage
Digital Input Leakage
●
●
●
●
●
●
2.4
2
V
V
IH
IL
0.8
0.6
I
I
= –1mA
= 1mA
V
– 1.0
V – 0.7
CC
V
OH
OL
OUT
OUT
CC
0.4
±10
10
0.4
±10
10
V
I
V
= GND to V
CC
µA
pF
LEAK
IN
C
Digital Input Capacitance
Guaranteed by Design
IN
Switching
t
t
t
t
t
t
t
t
t
D
D
Valid to CLK Setup
Valid to CLK Hold
●
●
●
●
●
●
●
●
●
40
60
ns
ns
ns
ns
ns
ns
ns
ns
ns
1
2
3
4
5
6
7
8
9
IN
IN
0
0
CLK High Time
40
40
50
40
20
60
60
80
60
30
CLK Low Time
CS/LD Pulse Width
LSB CLK to CS/LD
CS/LD Low to CLK
D
Output Delay
C
LOAD
= 15pF
150
220
OUT
CLK Low to CS/LD Low
20
30
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 4: DAC switched between all 1s and the code corresponding to V
for the part.
OS
Note 2: Nonlinearity is defined from the first code that is greater than or
equal to the maximum offset specification to code 4095 (full scale).
Note 5: Digital inputs at 0V or V
.
CC
Note 3: Load is 5kΩ in parallel with 100pF.
3
Linear [ Linear ]
