
LTC2175-14/
LTC2174-14/LTC2173-14
2
21754314fa
absoluTe MaxiMuM raTings
(Notes 1, 2)
pin conFiguraTions
orDer inForMaTion
LEAD FREE FINISH
TAPE AND REEL
PART MARKING*
PACKAGE DESCRIPTION
TEMPERATURE RANGE
LTC2175CUKG-14#PBF
LTC2175CUKG-14#TRPBF
LTC2175UKG-14
52-Lead (7mm × 8mm) Plastic QFN
0°C to 70°C
LTC2175IUKG-14#PBF
LTC2175IUKG-14#TRPBF
LTC2175UKG-14
52-Lead (7mm × 8mm) Plastic QFN
–40°C to 85°C
LTC2174CUKG-14#PBF
LTC2174CUKG-14#TRPBF
LTC2174UKG-14
52-Lead (7mm × 8mm) Plastic QFN
0°C to 70°C
LTC2174IUKG-14#PBF
LTC2174IUKG-14#TRPBF
LTC2174UKG-14
52-Lead (7mm × 8mm) Plastic QFN
–40°C to 85°C
LTC2173CUKG-14#PBF
LTC2173CUKG-14#TRPBF
LTC2173UKG-14
52-Lead (7mm × 8mm) Plastic QFN
0°C to 70°C
LTC2173IUKG-14#PBF
LTC2173IUKG-14#TRPBF
LTC2173UKG-14
52-Lead (7mm × 8mm) Plastic QFN
–40°C to 85°C
Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.
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/
Supply Voltages
VDD, OVDD................................................ –0.3V to 2V
Analog Input Voltage (AIN+, AIN–,
PAR/SER, SENSE) (Note 3).......... –0.3V to (VDD + 0.2V)
Digital Input Voltage (ENC+, ENC–, CS,
SDI, SCK) (Note 4).................................... –0.3V to 3.9V
SDO (Note 4)............................................. –0.3V to 3.9V
Digital Output Voltage................ –0.3V to (OVDD + 0.3V)
Operating Temperature Range
LTC2175C, 2174C, 2173C......................... 0°C to 70°C
LTC2175I, 2174I, 2173I ........................–40°C to 85°C
Storage Temperature Range .................. –65°C to 150°C
16
15
17 18 19
TOP VIEW
53
GND
UKG PACKAGE
52-LEAD (7mm
× 8mm) PLASTIC QFN
20 21 22 23 24 25 26
51
52
50 49 48 47 46 45 44 43 42 41
33
34
35
36
37
38
39
40
8
7
6
5
4
3
2
1
AIN1+
AIN1–
VCM12
AIN2+
AIN2–
REFH
REFL
AIN3+
AIN3–
VCM34
AIN4+
AIN4–
OUT2A+
OUT2A–
OUT2B+
OUT2B–
DCO+
DCO–
OVDD
OGND
FR+
FR–
OUT3A+
OUT3A–
OUT3B+
OUT3B–
V DD
SENSE
GND
V REF
PAR/
SER
SDO
GND
OUT1A
+
OUT1A
–
OUT1B
+
OUT1B
–
V DD
ENC
+
ENC
–
CS
SCK
SDI
GND
OUT4B
–
OUT4B
+
OUT4A
–
OUT4A
+
32
31
30
29
28
27
9
10
11
12
13
14
TJMAX = 150°C, θJA = 28°C/W
EXPOSED PAD (PIN 53) IS GND, MUST BE SOLDERED TO PCB