LTC2983
3
2983fc
For more information www.linear.com/LTC2983
PIN CONFIGURATIONABSOLUTE MAXIMUM RATINGS
Supply Voltage (V
DD
) ................................... –0.3V to 6V
Analog Input Pins (CH1 to
CH20, COM)
................................. –0.3V to (V
DD
+ 0.3V)
Input Current (CH1 to CH20, COM)
...................... ±15mA
Digital Inputs (CS, SDI,
SCK, RESET)
................................ –0.3V to (V
DD
+ 0.3V)
Digital Outputs (SDO, INTERRUPT)
–0.3V to (V
DD
+ 0.3V)
V
REFP
........................................................ –0.3V to 2.8V
Q
1
, Q
2
, Q
3
, LDO, V
REFOUT
, V
REF_BVP
(Note 17)
Reference Short-Circuit Duration
..................... Indefinite
Operating Temperature Range
LTC2983C .................................................0ºC to 70ºC
LTC2983I ............................................. –40ºC to 85ºC
LTC2983H ........................................... –40ºC to 125ºC
(Notes 1, 2)
ORDER INFORMATION
LEAD FREE FINISH TRAY PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC2983CLX#PBF LTC2983CLX#PBF LTC2983LX 48-Lead (7mm × 7mm) LQFP 0°C to 70°C
LTC2983ILX#PBF LTC2983ILX#PBF LTC2983LX 48-Lead (7mm × 7mm) LQFP –40°C to 85°C
LTC2983HLX#PBF LTC2983HLX#PBF LTC2983LX 48-Lead (7mm × 7mm) LQFP –40°C to 125°C
Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
13
14
15
16
17
18
19
20
21
22
23
24
48
47
46
45
44
43
42
41
40
39
38
37
V
REFOUT
V
REFP
GND
CH1
CH2
CH3
CH4
CH5
CH6
CH7
CH8
CH9
25
26
27
28
29
30
31
32
33
34
35
36
CH10
CH11
CH12
CH13
CH14
CH15
CH16
CH17
CH18
CH19
CH20
COM
12
11
10
9
8
7
6
5
4
3
2
1
GND
V
REF_BYP
NC
GND
V
DD
GND
V
DD
GND
V
DD
GND
V
DD
GND
Q1
Q2
Q3
V
DD
GND
LDO
RESET
CS
SDI
SDO
SCK
INTERRUPT
TOP VIEW
LX PACKAGE
48-LEAD (7mm × 7mm) PLASTIC LQFP
T
JMAX
= 150°C, θ
JA
= 57°C/W
COMPLETE SYSTEM ELECTRICAL CHARACTERISTICS
PARAMETER CONDITIONS MIN TYP MAX UNITS
Supply Voltage
l
2.85 5.25 V
Supply Current
l
15 20 mA
Sleep Current
l
25 60 µA
Input Range All Analog Input Channels
l
–0.05 V
DD
– 0.3 V
Output Rate Two Conversion Cycle Mode (Notes 6, 9)
l
150 164 170 ms
Output Rate Three Conversion Cycle Mode (Notes 6, 9)
l
225 246 255 ms
Input Common Mode Rejection 50Hz/60Hz (Note 4)
l
120 dB
Input Normal Mode Rejection 60Hz (Notes 4, 7)
l
120 dB
The l denotes the specifications
which apply over the full operating temperature range, otherwise specifications are at T
A
= 25°C.
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