ltc1748cfw-trpbf Linear Technology Corporation, ltc1748cfw-trpbf Datasheet - Page 2

• Manufacturer Part Number: ltc1748cfw-trpbf
• Description: 14-bit, 80msps Low Noise Adc
• Manufacturer: Linear Technology Corporation

ABSOLUTE
CO VERTER CHARACTERISTICS
A ALOG I PUT
LTC1748
OV
Supply Voltage (V
Analog Input Voltage (Note 3) .... – 0.3V to (V
Digital Input Voltage (Note 4) ..... – 0.3V to (V
Digital Output Voltage ................. – 0.3V to (V
OGND Voltage ..............................................– 0.3V to 1V
Power Dissipation ............................................ 2000mW
Operating Temperature Range
Storage Temperature Range ................. – 65 C to 150 C
Lead Temperature (Soldering, 10 sec).................. 300 C
temperature range, otherwise specifications are at T
PARAMETER
Resolution (No Missing Codes)
Integral Linearity Error
Differential Linearity Error
Offset Error
Gain Error
Full-Scale Tempco
Offset Tempco
Input Referred Noise (Transition Noise)
specifications are at T
SYMBOL
V
I
C
t
t
t
CMRR
2
IN
ACQ
AP
JITTER
IN
IN
U
DD
LTC1748C ............................................... 0 C to 70 C
LTC1748I ............................................ – 40 C to 85 C
U
= V
DD
PARAMETER
Analog Input Range (Note 8)
Analog Input Leakage Current
Analog Input Capacitance
Sample-and-Hold Acquisition Time
Sample-and-Hold Acquisition Delay Time
Sample-and-Hold Acquisition Delay Time Jitter
Analog Input Common Mode Rejection Ratio
(Notes 1, 2)
U
DD
W
MAXIMUM
A
) ............................................. 5.5V
= 25 C. (Note 5)
W W
The
indicates specifications which apply over the full operating temperature range, otherwise
RATINGS
U
A
DD
DD
DD
= 25 C. (Note 5)
CONDITIONS
(Note 6)
(Note 7)
External Reference (SENSE = 1.6V)
Internal Reference
External Reference (SENSE = 1.6V)
SENSE = 1.6V
CONDITIONS
4.75V V
0 < A
Sample Mode ENC < ENC
Hold Mode ENC > ENC
1.5V < (A
+ 0.3V)
+ 0.3V)
+ 0.3V)
IN
The
+
, A
IN
DD
IN
–
–
indicates specifications which apply over the full operating
= A
< V
5.25V
PACKAGE/ORDER
Consult LTC Marketing for parts specified with wider operating temperature ranges.
IN
DD
+
) < 3V
MSBINV
SENSE
REFHA
REFHB
REFLB
REFLA
GND
GND
GND
GND
GND
GND
GND
GND
A
A
V
ENC
ENC
V
V
V
V
V
IN
IN
CM
DD
DD
DD
DD
DD
+
–
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
T
1
2
3
4
5
6
7
8
9
JMAX
48-LEAD PLASTIC TSSOP
= 150 C,
FW PACKAGE
TOP VIEW
JA
= 35 C/W
MIN
–1
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
– 3.5
MIN
– 35
– 3
–1
14
OF
OGND
D13
D12
D11
OV
D10
D9
D8
D7
OGND
GND
GND
D6
D5
D4
OV
D3
D2
D1
D0
OGND
CLKOUT
OE
DD
DD
INFORMATION
U
1 to 1.6
0.82
0.15
TYP
TYP
0.75
80
0.5
8
4
5
0
40
20
20
8
1
LTC1748CFW
LTC1748IFW
ORDER PART
W
NUMBER
MAX
1.5
3.5
35
MAX
3
1
6
LSB
ppm/ C
ppm/ C
UNITS
UNITS
ps
U
1748fa
%FS
V/ C
LSB
LSB
RMS
RMS
Bits
mV
dB
pF
pF
ns
ns
V
A