Datasheet
LTC2351-14
2
235114fb
ABSOLUTE MAXIMUM RATINGS
Supply Voltage (V
DD
, V
CC
, OV
DD
) ................................ 4V
Analog and V
REF
Input Voltages
(Note 3) ................................... –0.3V to (V
DD
+ 0.3V)
Digital Input Voltages ................... –0.3V to (V
DD
+ 0.3V)
Digital Output Voltage .................. –0.3V to (V
DD
+ 0.3V)
Power Dissipation ...............................................100mW
Operation Temperature Range
LTC2351C-14 ........................................... 0°C to 70°C
LTC2351I-14 ........................................ –40°C to 85°C
LTC2351H-14 ..................................... –40°C to 125°C
Storage Temperature Range ................... –65°C to 150°C
(Notes 1, 2)
PARAMETER CONDITIONS MIN TYP MAX UNITS
Resolution (No Missing Codes)
l
14 Bits
Integral Linearity Error (Note 5)
l
–3 ±1 3 LSB
Offset Error (Note 4)
LTC2351H-14
l
l
–4.5
–5
±1
±1
4.5
5
mV
mV
Offset Match from CH0 to CH5 –3 ±0.5 3 mV
Range Error (Note 4)
l
–12 ±2 12 mV
Range Match from CH0 to CH5 –5 ±1 5 mV
Range Tempco Internal Reference (Note 4)
External Reference
±15
±1
ppm/°C
ppm/°C
CONVERTER CHARACTERISTICS
The l denotes the specifi cations which apply over the full operating
temperature range, otherwise specifi cations are at T
A
= 25°C. With internal reference, V
DD
= V
CC
= 3V.
PIN CONFIGURATION
16 15 14 13 12 11 10 9
25 26 27 28
TOP VIEW
QFN PACKAGE
32-PIN (5mm s 5mm) PLASTIC QFN
29 30 31 32
1
2
3
4
5
6
7
8
24
23
22
21
20
19
18
17CH4
+
CH4
–
GND
CH5
+
CH5
–
GND
V
REF
V
CC
CH1
–
CH1
+
GND
CH0
–
CH0
+
OV
DD
OGND
SDO
GND
CH3
–
CH3
+
GND
GND
CH2
–
CH2
+
GND
V
DD
SEL2
SEL1
SEL0
BIP
CONV
DGND
SCK
33
T
JMAX
= 150°C, θ
JA
= 34°C/W
EXPOSED PAD (PIN 33) IS GND, MUST BE SOLDERED TO PCB
ORDER INFORMATION
LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC2351CUH-14#PBF LTC2351CUH-14#TRPBF 235114
32-Pin (5mm × 5mm) Plastic QFN
0°C to 70°C
LTC2351IUH-14#PBF LTC2351IUH-14#TRPBF 235114
32-Pin (5mm × 5mm) Plastic QFN
–40°C to 85°C
LTC2351HUH-14#PBF LTC2351HUH-14#TRPBF 235114
32-Pin (5mm × 5mm) Plastic QFN
–40°C to 125°C
Consult LTC Marketing for parts specifi ed with wider operating temperature ranges. *The temperature grade is identifi ed by a label on the shipping container.
For more information on lead free part marking, go to:
http://www.linear.com/leadfree/
For more information on tape and reel specifi cations, go to:
http://www.linear.com/tapeandreel/