Datasheet
LTC1099
2
CONVERTER CHARACTERISTICS
U
Supply Voltage (V
CC
) to GND Voltage ...................... 12V
Analog and Reference Inputs... –0.3V to (V
CC
+ 0.3V)
Digital Inputs .........................................–0.3V to 12V
Digital Outputs ........................ –0.3V to (V
CC
+ 0.3V)
Power Dissipation.............................................. 500mW
ORDER PART
NUMBER
LTC1099CN
LTC1099ACN
LTC1099AIN
ABSOLUTE AXI U RATI GS
W
WW
U
PACKAGE/ORDER I FOR ATIO
UUW
(Notes 1, 2)
V
IN
DB0
DB1
DB2
DB3
WR/RDY
MODE
RD
INT
GND
1
2
3
4
5
6
7
8
9
10
TOP VIEW
SW PACKAGE
20-LEAD PLASTIC SO
20
19
18
17
16
15
14
13
12
11
V
CC
TC
OFL
DB7
DB6
DB5
DB4
CS
REF
+
REF
–
T
JMAX
= 150°C, θ
JA
= 100°C/W
ORDER PART
NUMBER
T
JMAX
= 150°C, θ
JA
= 130°C/W
Operating Temperature Range
LTC1099C/LTC1099AC............................0°C to 70°C
LTC1099I/LTC1099AI ..........................–40°C to 85°C
Storage Temperature Range ................. –65°C to 150°C
Lead Temperature (Soldering, 10 sec)..................300°C
The ● denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. V
CC
= 5V, REF
+
= 5V, REF
–
= 0V and T
A
= T
MIN
to T
MAX
unless otherwise
noted.
LTC1099CSW
1
2
3
4
5
6
7
8
9
10
TOP VIEW
N PACKAGE
20-LEAD PDIP
20
19
18
17
16
15
14
13
12
11
V
IN
DB0
DB1
DB2
DB3
WR/RDY
MODE
RD
INT
GND
V
CC
T
C
OFL
DB7
DB6
DB5
DB4
CS
REF
+
REF
–
LTC1099AI/LTC1099I LTC1099AC/LTC1099C
PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS
Accuracy
Total Unadjusted Error (Note 3)
LTC1099A
● ±0.75 ±0.75 LSB
LTC1099
● ±1 ±1 LSB
Minimum Resolution (No Missing Codes) ● 8 8 Bits
Reference Input
Input Resistance ● 1 3.2 6 2 3.2 4.5 kΩ
REF
+
Input Voltage Range (Note 4) ● REF
–
V
CC
REF
–
V
CC
V
REF
–
Input Voltage Range (Note 4) ● GND REF
+
GND REF
+
V
Analog Input
Input Voltage Range ● GND V
CC
GND V
CC
V
Input Leakage Current CS = V
CC
, V
IN
= V
CC
, GND ● ±3 ±3 µA
Input Capacitance 60 60 pF
Sample-and-Hold
Acquisition Time 240 240 ns
Aperture Time 110 110 ns
Tracking Rate 2.5 2.5 V/µs
Consult factory for parts specified with wider operating temperature ranges.