Datasheet
2
LTC1446/LTC1446L
A
U
G
W
A
W
U
W
ARB
S
O
LU
T
EXI T
I
S
V
CC
to GND ................................................ –0.5 to 7.5V
Logic Inputs to GND ................................... –0.5 to 7.5V
Operating Temperature Range
LTC1446C/LTC1446LC ............................ 0°C to 70°C
LTC1446I/LTC1446LI ..........................–40°C to 85°C
V
OUT A
/V
OUT B
................................. –0.5V to V
CC
+ 0.5V
Maximum Junction Temperature ..........................125°C
Storage Temperature Range ..................–65°C to 150°C
Lead Temperature (Soldering, 10 sec)................. 300°C
PACKAGE/ORDER INFORMATION
W
U
U
ORDER PART
NUMBER
LTC1446CS8
LTC1446IS8
LTC1446LCS8
LTC1446LIS8
S8 PART MARKING
1446 1446L
1446I 1446LI
ORDER PART
NUMBER
LTC1446CN8
LTC1446IN8
LTC1446LCN8
LTC1446LIN8
T
JMAX
= 125°C, θ
JA
= 100°C/W
T
JMAX
= 125°C, θ
JA
= 150°C/W
1
2
3
4
8
7
6
5
TOP VIEW
V
OUT B
V
CC
GND
V
OUT A
CLK
D
IN
CS/LD
D
OUT
N8 PACKAGE
8-LEAD PDIP
Consult factory for Military grade parts.
ELECTRICAL CHARACTERISTICS
1
2
3
4
8
7
6
5
TOP VIEW
V
OUT B
V
CC
GND
V
OUT A
CLK
D
IN
CS/LD
D
OUT
S8 PACKAGE
8-LEAD PLASTIC SO
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
DAC
Resolution ● 12 Bits
DNL Differential Nonlinearity Guaranteed Monotonic (Note 2) ● ±0.2 ±0.5 LSB
INL Integral Nonlinearity T
A
= 25°C ±2.0 4.5 LSB
● ±2.5 5.0 LSB
ZSE Zero-Scale Error ● 0318mV
V
OS
Offset Error ● ±2 ±18 mV
V
OS
TC Offset Error Tempco ±15 µV/°C
V
FS
Full-Scale Voltage LTC1446, T
A
= 25°C 4.065 4.095 4.125 V
LTC1446 ● 4.045 4.095 4.145 V
LTC1446L, T
A
= 25°C 2.470 2.500 2.530 V
LTC1446L
● 2.460 2.500 2.540 V
V
FS
TC Full-Scale Voltage Tempco ±0.1 LSB/°C
Power Supply (LTC1446)
V
CC
Positive Supply Voltage For Specified Performance ● 4.5 5.5 V
I
CC
Supply Current 4.5V ≤ V
CC
≤ 5.5V (Note 5) ● 1000 1500 µA
Power Supply (LTC1446L)
V
CC
Positive Supply Voltage For Specified Performance ● 2.7 5.5 V
I
CC
Supply Current 2.7V ≤ V
CC
≤ 5.5V (Note 5) ● 650 1000 µA
The ● denotes the specifications which apply over the full operating
temperature range. V
CC
= 4.5V to 5.5V (LTC1446), 2.7V to 5.5V (LTC1446L), V
OUT A
and V
OUT B
unloaded, T
A
= T
MIN
to T
MAX,
unless
otherwise noted.
(Note 1)