
LTC2755
2
2755f
S2
IOUT2A
GND
D11
D10
D9
D8
D7
D6
D5
D4
D3
GND
IOUT2D
VDD
A2
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
D/S
S0
IOUT2B
GND
NC
D0
D1
D2
GND
IOUT2C
MSPAN
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
A1
A0
GND
CLR
REFD
R
OFSD
R
FBD
I OUT1D
R
VOSD
R
VOSC
I OUT1C
R
FBC
R
OFSC
REFC
R
COM2
R
IN2
64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49
R
IN1
R
COM1
REF
A
R
OFSA
R
FBA
I OUT1A
R
VOSA
R
VOSB
I OUT1B
R
FBB
R
OFSB
REFB
S1
WR
UPD
READ
65
LTC2755-12 UP PACKAGE
64-LEAD (9mm × 9mm) PLASTIC QFN
TJMAX = 125°C, θJA = 28°C/W
EXPOSED PAD (PIN 65) IS GND, MUST BE SOLDERED TO PCB
S2
IOUT2A
GND
D13
D12
D11
D10
D9
D8
D7
D6
D5
GND
IOUT2D
VDD
A2
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
D/S
S0
IOUT2B
GND
NC
D0
D1
D2
D3
D4
GND
IOUT2C
MSPAN
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
A1
A0
GND
CLR
REFD
R
OFSD
R
FBD
I OUT1D
R
VOSD
R
VOSC
I OUT1C
R
FBC
R
OFSC
REFC
R
COM2
R
IN2
64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49
R
IN1
R
COM1
REF
A
R
OFSA
R
FBA
I OUT1A
R
VOSA
R
VOSB
I OUT1B
R
FBB
R
OFSB
REFB
S1
WR
UPD
READ
65
LTC2755-14 UP PACKAGE
64-LEAD (9mm × 9mm) PLASTIC QFN
TJMAX = 125°C, θJA = 28°C/W
EXPOSED PAD (PIN 65) IS GND, MUST BE SOLDERED TO PCB
S2
IOUT2A
GND
D15
D14
D13
D12
D11
D10
D9
D8
D7
GND
IOUT2D
VDD
A2
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
D/S
S0
IOUT2B
GND
NC
D0
D1
D2
D3
D4
D5
D6
GND
IOUT2C
MSPAN
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
A1
A0
GND
CLR
REFD
R
OFSD
R
FBD
I OUT1D
R
VOSD
R
VOSC
I OUT1C
R
FBC
R
OFSC
REFC
R
COM2
R
IN2
64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49
R
IN1
R
COM1
REF
A
R
OFSA
R
FBA
I OUT1A
R
VOSA
R
VOSB
I OUT1B
R
FBB
R
OFSB
REFB
S1
WR
UPD
READ
65
LTC2755-16 UP PACKAGE
64-LEAD (9mm × 9mm) PLASTIC QFN
TJMAX = 125°C, θJA = 28°C/W
EXPOSED PAD (PIN 65) IS GND, MUST BE SOLDERED TO PCB
ABSOLUTE MAXIMUM RATINGS
IOUT1X, IOUT2X, RCOMX to GND................................±0.3V
RVOSX, RFBX, ROFSX, RINX, REFX to GND..................±15V
VDD to GND.................................................. –0.3V to 7V
Digital Inputs and Digital I/O
to GND ..........................–0.3V to VDD+0.3V (max 7V)
(Notes 1, 2)
PIN CONFIGURATION
ORDER INFORMATION
LEAD FREE FINISH
TAPE AND REEL
PART MARKING*
PACKAGE DESCRIPTION
TEMPERATURE RANGE
LTC2755CUP-12#PBF
LTC2755CUP-12#TRPBF
LTC2755UP-12
64-Lead (9mm × 9mm) Plastic QFN
0°C to 70°C
LTC2755IUP-12#PBF
LTC2755IUP-12#TRPBF
LTC2755UP-12
64-Lead (9mm × 9mm) Plastic QFN
–40°C to 85°C
LTC2755CUP-14#PBF
LTC2755CUP-14#TRPBF
LTC2755UP-14
64-Lead (9mm × 9mm) Plastic QFN
0°C to 70°C
LTC2755IUP-14#PBF
LTC2755IUP-14#TRPBF
LTC2755UP-14
64-Lead (9mm × 9mm) Plastic QFN
–40°C to 85°C
LTC2755BCUP-16#PBF
LTC2755BCUP-16#TRPBF
LTC2755UP-16
64-Lead (9mm × 9mm) Plastic QFN
0°C to 70°C
LTC2755BIUP-16#PBF
LTC2755BIUP-16#TRPBF
LTC2755UP-16
64-Lead (9mm × 9mm) Plastic QFN
–40°C to 85°C
LTC2755ACUP-16#PBF
LTC2755ACUP-16#TRPBF
LTC2755UP-16
64-Lead (9mm × 9mm) Plastic QFN
0°C to 70°C
LTC2755AIUP-16#PBF
LTC2755AIUP-16#TRPBF
LTC2755UP-16
64-Lead (9mm × 9mm) Plastic QFN
–40°C to 85°C
Consult LTC Marketing for parts specied with wider operating temperature ranges. *The temperature grade is identied by a label on the shipping container.
Consult LTC Marketing for information on non-standard lead based nish parts.
Operating Temperature Range
LTC2755C..................................................... 0°C to 70°C
LTC2755I.................................................. –40°C to 85°C
Maximum Junction Temperature........................... 125°C
Storage Temperature Range................... –65°C to 150°C