Datasheet
LTC2446/LTC2447
2
24467fa
13 14 15 16
TOP VIEW
39
UHF PACKAGE
38-LEAD (5mm × 7mm) PLASTIC QFN
17 18 19
38 37 36 35 34 33 32
24
25
26
27
28
29
30
31
8
7
6
5
4
3
2
1GND
BUSY
EXT
GND
GND
GND
COM
CH0
CH1
V
REF01
–
V
REF01
+
CH2
GND
REFG
–
REFG
+
V
CC
NC
NC
NC
NC
V
REF67
+
V
REF67
–
CH7
CH6
SCK
SDO
CS
F
O
SDI
GND
GND
CH3
V
REF23
–
V
REF23
+
CH4
CH5
V
REF45
–
VREF45
+
23
22
21
20
9
10
11
12
ORDER PART
NUMBER
ABSOLUTE AXI U RATI GS
W
WW
U
PACKAGE/ORDER I FOR ATIO
UUW
(Notes 1, 2)
Supply Voltage (V
CC
) to GND.......................–0.3V to 6V
Analog Input Pins Voltage
to GND .................................... –0.3V to (V
CC
+ 0.3V)
Reference Input Pins Voltage
to GND .................................... –0.3V to (V
CC
+ 0.3V)
Digital Input Voltage to GND ........ –0.3V to (V
CC
+ 0.3V)
LTC2446CUHF
LTC2446IUHF
QFN PART
MARKING*
2446
Digital Output Voltage to GND ..... –0.3V to (V
CC
+ 0.3V)
Operating Temperature Range
LTC2446C/LTC2447C .............................. 0°C to 70°C
LTC2446I/LTC2447I ........................... – 40°C to 85°C
Storage Temperature Range ................. – 65°C to 125°C
T
JMAX
= 125°C, θ
JA
= 34°C/W
EXPOSED PAD (PIN 39) IS GND
MUST BE SOLDERED TO PCB
*The temperature grade is identified by a label on the shipping container. Consult LTC Marketing for parts specified with wider operating temperature ranges.
ORDER PART
NUMBER
LTC2447CUHF
LTC2447IUHF
QFN PART
MARKING*
2447
13 14 15 16
39
TOP VIEW
UHF PACKAGE
38-LEAD (5mm × 7mm) PLASTIC QFN
17 18 19
38 37 36 35 34 33 32
24
25
26
27
28
29
30
31
8
7
6
5
4
3
2
1GND
BUSY
EXT
GND
GND
GND
COM
CH0
CH1
V
REF01
–
V
REF01
+
CH2
GND
REFG
–
REFG
+
V
CC
MUXOUTN
ADCINN
ADCINP
MUXOUTP
V
REF67
+
V
REF67
–
CH7
CH6
SCK
SDO
CS
F
O
SDI
GND
GND
CH3
V
REF23
_
VREF23
+
CH4
CH5
V
REF45
–
V
REF45
+
23
22
21
20
9
10
11
12
T
JMAX
= 125°C, θ
JA
= 34°C/W
EXPOSED PAD (PIN 39) IS GND
MUST BE SOLDERED TO PCB
Order Options Tape and Reel: Add #TR Lead Free: Add #PBF Lead Free Tape and Reel: Add #TRPBF
Lead Free Part Marking: http://www.linear.com/leadfree/