Datasheet

2
LTC1418
ABSOLUTE MAXIMUM RATINGS
W
WW
U
(Notes 1, 2)
Supply Voltage (V
DD
)................................................. 6V
Negative Supply Voltage (V
SS
)
Bipolar Operation Only ........................... –6V to GND
Total Supply Voltage (V
DD
to V
SS
)
Bipolar Operation Only ....................................... 12V
Analog Input Voltage (Note 3)
Unipolar Operation .................. –0.3V to (V
DD
+ 0.3V)
Bipolar Operation...........(V
SS
– 0.3V) to (V
DD
+ 0.3V)
Digital Input Voltage (Note 4)
Unipolar Operation ................................–0.3V to 10V
Bipolar Operation.........................(V
SS
– 0.3V) to 10V
Digital Output Voltage
Unipolar Operation .................. –0.3V to (V
DD
+ 0.3V)
Bipolar Operation...........(V
SS
– 0.3V) to (V
DD
+ 0.3V)
Power Dissipation.............................................. 500mW
Operation Temperature Range
LTC1418C................................................ 0°C to 70°C
LTC1418I............................................ –40°C to 85°C
Storage Temperature Range ................. –65°C to 150°C
Lead Temperature (Soldering, 10 sec).................. 300°C
PACKAGE/ORDER INFORMATION
W
U
U
ORDER PART
NUMBER
Consult factory for Military grade parts.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
TOP VIEW
G PACKAGE
28-LEAD PLASTIC SSOP
N PACKAGE
28-LEAD NARROW PDIP
28
27
26
25
24
23
22
21
20
19
18
17
16
15

A
IN
+

A
IN
–

V
REF

REFCOMP
AGND
D13 (MSB)
D12
D11
D10
D9
D8
D7
D6
DGND
V
DD

V
SS

BUSY
CS
CONVST
RD
SHDN
SER/PAR
D0 (EXT/INT)
D1 (D
OUT
)
D2 (CLKOUT)
D3 (SCLK)
D4 (EXTCLKIN)
D5
LTC1418ACG
LTC1418ACN
LTC1418AIG
LTC1418AIN
LTC1418CG
LTC1418CN
LTC1418IG
LTC1418IN
CCHARA TERIST
ICS
CO
U
VERTER
LTC1418 LTC1418A
PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS
Resolution (No Missing Codes) ● 13 14 Bits
Integral Linearity Error (Note 7) ● ±0.8 ±2 ±0.5 ±1.25 LSB
Differential Linearity Error ● ±0.7 ±1.5 ±0.35 ±1 LSB
Offset Error (Note 8) ● ±5 ±20 ±2 ±10 LSB
Full-Scale Error Internal Reference ±10 ±60 ±20 ±60 LSB
External Reference = 2.5V ±5 ±30 ±5 ±15 LSB
Full-Scale Tempco I
OUT(REF)
= 0, Internal Reference, Commercial ● ±15 ±10 ±45 ppm/°C
I
OUT(REF)
= 0, Internal Reference, Industrial ±20 ppm/°C
I
OUT(REF)
= 0, External Reference ±5 ±1 ppm/°C
With internal reference (Notes 5, 6) unless otherwise noted.
PUT
U
IA
A
U
LOG
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
IN
Analog Input Range (Note 9) 4.75V ≤ V
DD
≤ 5.25V (Unipolar) ● 0 to 4.096 V
4.75V ≤ V
DD
≤ 5.25V, –5.25V ≤ V
SS
≤ –4.75V (Bipolar) ● ±2.048 V
I
IN
Analog Input Leakage Current CS = High ● ±1 µA
C
IN
Analog Input Capacitance Between Conversions (Sample Mode) 25 pF
During Conversions (Hold Mode) 5 pF
t
ACQ
Sample-and-Hold Acquisition Time Commercial ● 300 1000 ns
Industrial ● 300 1000 ns
(Note 5)
T
JMAX
= 110°C, θ
JA
= 95°C/ W (G)
T
JMAX
= 110°C, θ
JA
= 100°C/ W (N)