Datasheet

LTC1661
2
1661fa
ABSOLUTE MAXIMUM RATINGS
V
CC
to GND .............................................. –0.3V to 7.5V
Logic Inputs to GND
............................... –0.3V to 7.5V
V
OUT A
, V
OUT B
, REF to GND ...........–0.3V to V
CC
+ 0.3V
Maximum Junction Temperature...........................125°C
Storage Temperature Range
.................. –65°C to 150°C
(Note 1)
1
2
3
4
CS/LD
SCK
D
IN
REF
8
7
6
5
V
OUT A
GND
V
CC
V
OUT B
TOP VIEW
MS8 PACKAGE
8-LEAD PLASTIC MSOP
T
JMAX
= 125°C, θ
JA
= 150°C/W
1
2
3
4
8
7
6
5
TOP VIEW
CS/LD
SCK
D
IN
REF
V
OUT A
GND
V
CC
V
OUT B
N8 PACKAGE
8-LEAD PLASTIC DIP
T
JMAX
= 150°C, θ
JA
= 100°C/W
PIN CONFIGURATION
ELECTRICAL CHARACTERISTICS
The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. V
CC
= 2.7V to 5.5V, V
REF
≤ V
CC
, V
OUT
unloaded unless otherwise noted.
ORDER INFORMATION
LEAD FREE FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC1661CMS8#PBF LTC1661CMS8#TRPBF LTDV 8-Lead Plastic MSOP 0°C to 70°C
LTC1661IMS8#PBF LTC1661IMS8#TRPBF LTDW 8-Lead Plastic MSOP –40°C to 85°C
LTC1661CN8#PBF LTC1661CN8#TRPBF LTC1661CN8 8-Lead Plastic DIP 0°C to 70°C
LTC1661IN8#PBF LTC1661IN8#TRPBF LTC1661IN8 8-Lead Plastic DIP –40°C to 85°C
Consult LTC Marketing for parts specified with wider operating temperature ranges.
Consult LTC Marketing for information on non-standard 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/
Operating Temperature Range
LTC1661C ............................................... 0°C to 70°C
LTC1661I ............................................ –40°C to 85°C
Lead Temperature (Soldering, 10 sec)
................. 300°C
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
Accuracy
Resolution
l
10 Bits
Monotonicity 1V ≤ V
REF
≤ V
CC
– 0.1V (Note 2)
l
10 Bits
DNL Differential Nonlinearity 1V ≤ V
REF
≤ V
CC
– 0.1V (Note 2)
l
±0.1 ±0.75 LSB
INL Integral Nonlinearity 1V ≤ V
REF
≤ V
CC
– 0.1V (Note 2)
l
±0.4 ±2 LSB
V
OS
Offset Error Measured at Code 20
l
±5 ±30 mV
V
OS
Temperature Coefficient ±15 µV/°C
FSE Full-Scale Error V
CC
= 5V, V
REF
= 4.096V
l
±1 ±12 LSB
Full-Scale Error Temperature Coefficient ±30 µV/°C
PSR Power Supply Rejection V
REF
= 2.5V 0.18 LSB/V