參數(shù)資料
型號： LTC2449IUHF#TR
廠商： Linear Technology
文件頁數(shù)： 12/28頁
文件大小： 0K
描述： IC ADC 24BIT HI SPEED 38QFN
標(biāo)準(zhǔn)包裝： 2,500
位數(shù)： 24
采樣率（每秒）： 8k
數(shù)據(jù)接口： MICROWIRE?，串行，SPI?
轉(zhuǎn)換器數(shù)目： 1
功率耗散（最大）： 40mW
電壓電源： 單電源
工作溫度： -40°C ~ 85°C
安裝類型： 表面貼裝
封裝/外殼： 38-WFQFN 裸露焊盤
供應(yīng)商設(shè)備封裝： 38-QFN（5x7）
包裝： 帶卷 (TR)
輸入數(shù)目和類型： 16 個單端，雙極；8 個差分，雙極
配用： DC742A-ND - BOARD DELTA SIGMA ADC LTC2449
LTC2444/LTC2445/
LTC2448/LTC2449
2
2444589fb
ORDER PART
NUMBER
ORDER PART
NUMBER
ABSOLUTE
AXI U
RATI GS
W
WW
U
PACKAGE/ORDER I FOR ATIO
UU
W
(Notes 1, 2)
Supply Voltage (VCC) to GND.......................– 0.3V to 6V
Analog Input Pins Voltage
to GND .................................... – 0.3V to (VCC + 0.3V)
Reference Input Pins Voltage
to GND .................................... – 0.3V to (VCC + 0.3V)
Digital Input Voltage to GND ........ – 0.3V to (VCC + 0.3V)
Digital Output Voltage to GND ..... – 0.3V to (VCC + 0.3V)
TJMAX = 125°C, θJA = 34°C/W
EXPOSED PAD (PIN 39) IS GND
MUST BE SOLDERED TO PCB
LTC2444CUHF
LTC2444IUHF
QFN PART MARKING*
2444
Operating Temperature Range
LTC2444C/LTC2445C/
LTC2448C/LTC2449C .............................. 0
°C to 70°C
LTC2444I/LTC2445I/
LTC2448I/LTC2449I ........................... – 40
°C to 85°C
Storage Temperature Range ................. – 65
°C to 150°C
LTC2448CUHF
LTC2448IUHF
QFN PART MARKING*
2448
13 14 15 16
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
1
GND
BUSY
EXT
GND
COM
NC
CH0
CH1
NC
GND
REF–
REF+
VCC
NC
CH7
CH6
NC
SCK
SDO
CS
F
O
SDI
GND
CH2
CH3
NC
CH4
CH5
NC
23
22
21
20
9
10
11
12
39
ORDER PART
NUMBER
ORDER PART
NUMBER
TJMAX = 125°C, θJA = 34°C/W
EXPOSED PAD (PIN 39) IS GND
MUST BE SOLDERED TO PCB
LTC2445CUHF
LTC2445IUHF
QFN PART MARKING*
2445
*The temperature grade is identified by a label on the shipping container. Consult LTC Marketing for parts specified with wider operating temperature ranges.
LTC2449CUHF
LTC2449IUHF
QFN PART MARKING*
2449
TJMAX = 125°C, θJA = 34°C/W
EXPOSED PAD (PIN 39) IS GND
MUST BE SOLDERED TO PCB
13 14 15 16
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
1
GND
BUSY
EXT
GND
COM
NC
CH0
CH1
NC
GND
REF–
REF+
VCC
MUXOUTN
ADCINN
ADCINP
MUXOUTP
NC
CH7
CH6
NC
SCK
SDO
CS
F
O
SDI
GND
CH2
CH3
NC
CH4
CH5
NC
23
22
21
20
9
10
11
12
39
13 14 15 16
TOP VIEW
UHF PACKAGE
38-LEAD (5mm
× 7mm) PLASTIC QFN
17 18 19
38
39
37 36 35 34 33 32
24
25
26
27
28
29
30
31
8
7
6
5
4
3
2
1
GND
BUSY
EXT
GND
COM
CH0
CH1
CH2
CH3
CH4
GND
REF–
REF+
VCC
NC
CH15
CH14
CH13
CH12
SCK
SDO
CS
F
O
SDI
GND
CH5
CH6
CH7
CH8
CH9
CH10
CH11
23
22
21
20
9
10
11
12
13 14 15 16
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
39
29
30
31
8
7
6
5
4
3
2
1
GND
BUSY
EXT
GND
COM
CH0
CH1
CH2
CH3
CH4
GND
REF–
REF+
VCC
MUXOUTN
ADCINN
ADCINP
MUXOUTP
CH15
CH14
CH13
CH12
SCK
SDO
CS
F
O
SDI
GND
CH5
CH6
CH7
CH8
CH9
CH10
CH11
23
22
21
20
9
10
11
12
TJMAX = 125°C, θJA = 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/
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