Datasheet

2
LTC1661
A
U
G
W
A
W
U
W
ARB
S
O
LU
T
EXI T
I
S
(Note 1)
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
Operating Temperature Range
LTC1661C ............................................. 0°C to 70°C
LTC1661I........................................... –40°C to 85°C
Lead Temperature (Soldering, 10 sec)................ 300°C
E
LECTR
IC
AL C CHARA TERIST
ICS
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
Accuracy
Resolution ● 10 Bits
Monotonicity 1V ≤ V
REF
≤ V
CC
– 0.1V (Note 2) ● 10 Bits
DNL Differential Nonlinearity 1V ≤ V
REF
≤ V
CC
– 0.1V (Note 2) ● ±0.1 ±0.75 LSB
INL Integral Nonlinearity 1V ≤ V
REF
≤ V
CC
– 0.1V (Note 2) ● ±0.4 ±2 LSB
V
OS
Offset Error Measured at Code 20 ● ±5 ±30 mV
V
OS
Temperature Coefficient ±15 µV/°C
FSE Full-Scale Error V
CC
= 5V, V
REF
= 4.096V ● ±1 ±12 LSB
Full-Scale Error Temperature Coefficient ±30 µV/°C
PSR Power Supply Rejection V
REF
= 2.5V 0.18 LSB/V
Reference Input
Input Voltage Range ● 0V
CC
V
Resistance Active Mode ● 140 260 kΩ
Capacitance ● 15 pF
I
REF
Reference Current Sleep Mode ● 0.001 1 µA
Power Supply
V
CC
Positive Supply Voltage For Specified Performance ● 2.7 5.5 V
I
CC
Supply Current V
CC
= 5V (Note 3) ● 120 195 µA
V
CC
= 3V (Note 3) ● 95 154 µA
Sleep Mode (Note 3)
● 13µA
WU
U
PACKAGE
/
O
RDER I FOR ATIO
ORDER PART
NUMBER
MS8 PART MARKING
ORDER PART
NUMBER
T
JMAX
= 125°C, θ
JA
= 150°C/W
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
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
LTC1661CN8
LTC1661IN8
LTC1661CMS8
LTC1661IMS8
Consult factory for Military grade parts.
T
JMAX
= 125°C, θ
JA
= 100°C/W
LTDV
LTDW
The ● 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.