Datasheet

LTC1257
2
1257fc
ABSOLUTE MAXIMUM RATINGS
V
CC
to GND ............................................. –0.5V to 16.5V
TTL Input Voltage
.......................... –0.5V to V
CC
+ 0.5V
V
OUT
................................................ –0.5V to V
CC
+ 0.5V
REF
................................................. –0.5V to V
CC
+ 0.5V
Operating Temperature Range
LTC1257C ................................................ 0°C to 70°C
LTC1257I ............................................. –40°C to 85°C
(Note 1)
ORDER INFORMATION
ELECTRICAL CHARACTERISTICS
LEAD FREE FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC1257CN8#PBF LTC1257CN8#TRPBF LTC1257CN8 8-Lead PDIP 0°C to 70°C
LTC1257IN8#PBF LTC1257IN8#TRPBF LTC1257IN8 8-Lead PDIP –40°C to 85°C
LTC1257CS8#PBF LTC1257CS8#TRPBF 1257 8-Lead Plastic SO 0°C to 70°C
LTC1257IS8#PBF LTC1257IS8#TRPBF 1257I 8-Lead Plastic SO –40°C to 85°C
Consult LT C Marketing for parts specified with wider operating temperature
ranges.
Consult LT C Marketing for information on nonstandard lead based finish parts.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/
1
2
3
4
8
7
6
5
TOP VIEW
N8 PACKAGE
8-LEAD PDIP
V
CC
V
OUT
REF
GND
CLK
D
IN
LOAD
D
OUT
T
JMAX
= 125°C, θ
JA
= 100°C/W
1
2
3
4
8
7
6
5
TOP VIEW
S8 PACKAGE
8-LEAD PLASTIC SO
V
CC
V
OUT
REF
GND
CLK
D
IN
LOAD
D
OUT
T
JMAX
= 125°C, θ
JA
= 150°C/W
PIN CONFIGURATION
Maximum Junction Temperature
Plastic Package
...................................... –65°C to 125°C
Storage Temperature Range
.................. –65°C to 150°C
Lead Temperature (Soldering, 10 sec)
...................300°C
The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= T
MIN
to T
MAX
. V
CC
= 4.75V to 15.75V, internal or external reference
(2.475V ≤ V
REF
≤ V
CC
– 2.7V), unless otherwise noted.
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
DAC
Resolution
l
12 Bits
DNL Differential Nonlinearity Guaranteed Monotonic (Note 4)
l
±0.5 LSB
INL Integral Nonlinearity LTC1257C (Note 4)
LTC1257I (Note 4)
l
l
±3.5
±4.0
LSB
LSB