LTC2449CUHF#PBF Linear Technology, LTC2449CUHF#PBF Datasheet - Page 2

• Manufacturer Part Number: LTC2449CUHF#PBF
• Description: IC ADC 24BIT 38-QFN
• Manufacturer: Linear Technology

Specifications of LTC2449CUHF#PBF

• Number Of Bits: 24
• Sampling Rate (per Second): 8k
• Data Interface: MICROWIRE™, Serial, SPI™
• Number Of Converters: 1
• Power Dissipation (max): 40mW
• Voltage Supply Source: Single Supply
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 38-WFQFN, Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

ABSOLUTE AXI U RATI GS
LTC2444/LTC2445/
LTC2448/LTC2449
(Notes 1, 2)
Supply Voltage (V
Analog Input Pins Voltage
Reference Input Pins Voltage
Digital Input Voltage to GND ........ – 0.3V to (V
Digital Output Voltage to GND ..... – 0.3V to (V
PACKAGE/ORDER I FOR ATIO
2
*The temperature grade is identified by a label on the shipping container. Consult LTC Marketing for parts specified with wider operating temperature ranges.
Order Options Tape and Reel: Add #TR Lead Free: Add #PBF Lead Free Tape and Reel: Add #TRPBF
Lead Free Part Marking:
to GND .................................... – 0.3V to (V
to GND .................................... – 0.3V to (V
BUSY
BUSY
COM
COM
GND
GND
GND
GND
GND
GND
GND
GND
CH0
CH1
CH2
CH3
CH4
CH0
CH1
EXT
EXT
NC
NC
NC
10
11
12
10
11
12
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
EXPOSED PAD (PIN 39) IS GND
EXPOSED PAD (PIN 39) IS GND
38-LEAD (5mm × 7mm) PLASTIC QFN
38-LEAD (5mm × 7mm) PLASTIC QFN
T
MUST BE SOLDERED TO PCB
T
MUST BE SOLDERED TO PCB
JMAX
JMAX
38 37 36 35 34 33 32
13 14 15 16
38
13 14 15 16
= 125°C, θ
= 125°C, θ
37 36 35 34 33 32
UHF PACKAGE
UHF PACKAGE
TOP VIEW
TOP VIEW
39
39
CC
W
JA
JA
17 18 19
17 18 19
= 34°C/W
http://www.linear.com/leadfree/
= 34°C/W
) to GND .......................– 0.3V to 6V
31
30
29
28
27
26
25
24
23
22
21
20
31
30
29
28
27
26
25
24
23
22
21
20
W W
GND
REF
REF
V
NC
NC
NC
NC
CH15
CH14
CH13
CH12
GND
REF
REF
V
NC
NC
NC
NC
NC
CH7
CH6
NC
CC
CC
–
+
–
+
U
QFN PART MARKING*
QFN PART MARKING*
LTC2444CUHF
LTC2444IUHF
ORDER PART
ORDER PART
LTC2448CUHF
LTC2448IUHF
W
NUMBER
NUMBER
2444
2448
U
CC
CC
CC
CC
+ 0.3V)
+ 0.3V)
+ 0.3V)
+ 0.3V)
U
BUSY
COM
GND
GND
GND
GND
Operating Temperature Range
Storage Temperature Range ................. – 65°C to 150°C
CH0
CH1
EXT
NC
NC
NC
BUSY
COM
GND
GND
GND
GND
CH0
CH1
CH2
CH3
CH4
EXT
LTC2444C/LTC2445C/
LTC2448C/LTC2449C .............................. 0°C to 70°C
LTC2444I/LTC2445I/
LTC2448I/LTC2449I ........................... – 40°C to 85°C
10
11
12
1
2
3
4
5
6
7
8
9
38-LEAD (5mm × 7mm) PLASTIC QFN
10
11
12
EXPOSED PAD (PIN 39) IS GND
EXPOSED PAD (PIN 39) IS GND
1
2
3
4
5
6
7
8
9
T
MUST BE SOLDERED TO PCB
38-LEAD (5mm × 7mm) PLASTIC QFN
T
MUST BE SOLDERED TO PCB
JMAX
JMAX
38 37 36 35 34 33 32
13 14 15 16
38 37 36 35 34 33 32
13 14 15 16
= 125°C, θ
= 125°C, θ
UHF PACKAGE
TOP VIEW
UHF PACKAGE
TOP VIEW
39
39
17 18 19
JA
JA
17 18 19
= 34°C/W
= 34°C/W
31
30
29
28
27
26
25
24
23
22
21
20
31
30
29
28
27
26
25
24
23
22
21
20
GND
REF
REF
V
MUXOUTN
ADCINN
ADCINP
MUXOUTP
NC
CH7
CH6
NC
CC
GND
REF
REF
V
MUXOUTN
ADCINN
ADCINP
MUXOUTP
CH15
CH14
CH13
CH12
–
+
CC
–
+
QFN PART MARKING*
QFN PART MARKING*
LTC2445CUHF
LTC2445IUHF
LTC2449CUHF
LTC2449IUHF
ORDER PART
ORDER PART
NUMBER
NUMBER
2445
2449
2444589fb