Datasheet

2
LTC1409
AV
DD
= OV
DD
= V
DD
(Notes 1, 2)
Supply Voltage (V
DD
)................................................ 6V
Negative Supply Voltage (V
SS
)................................ –6V
Total Supply Voltage (V
DD
to V
SS
) .......................... 12V
Analog Input Voltage
(Note 3) .................................. V
SS
– 0.3V to V
DD
+ 0.3V
Digital Input Voltage (Note 4) ............ V
SS
– 0.3V to 10V
Digital Output Voltage............. V
SS
– 0.3V to V
DD
+ 0.3V
Power Dissipation............................................. 500mW
Operating Temperature Range
LTC1409C............................................... 0°C to 70°C
LTC1409I........................................... –40°C to 85°C
Storage Temperature Range ................ –65°C to 150°C
Lead Temperature (Soldering, 10 sec)................. 300°C
A
U
G
W
A
W
U
W
ARB
S
O
LU
T
EXI T
I
S
WU
U
PACKAGE
/
O
RDER I FOR ATIO
Consult factory for Military grade parts.
ORDER
PART NUMBER
LTC1409CG
LTC1409CSW
LTC1409IG
LTC1409ISW
PARAMETER CONDITIONS MIN TYP MAX UNITS
Resolution (No Missing Codes) ● 12 Bits
Integral Linearity Error (Note 7) ● ±0.3 ±1 LSB
Differential Linearity Error ● ±0.3 ±1 LSB
Offset Error (Note 8) ±2 ±6 LSB
● ±8 LSB
Full-Scale Error ±15 LSB
Full-Scale Tempco I
OUT(REF)
= 0 ● ±15 ppm/°C
CCHARA TERIST
ICS
CO
U
VERTER
With Internal Reference (Notes 5, 6)
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
IN
Analog Input Range (Note 9) 4.75V ≤ V
DD
≤ 5.25V, –5.25V ≤ V
SS
≤ –4.75V ● ±2.5 V
I
IN
Analog Input Leakage Current CS = High ● ±1 µA
C
IN
Analog Input Capacitance Between Conversions 17 pF
During Conversions 5 pF
t
ACQ
Sample-and-Hold Acquisition Time ● 50 150 ns
t
AP
Sample-and-Hold Aperture Delay Time –1.5 ns
t
jitter
Sample-and-Hold Aperture Delay Time Jitter 5 ps
RMS
CMRR Analog Input Common Mode Rejection Ratio –2.5V < (–A
IN
= +A
IN
) < 2.5V 60 dB
(Note 5)
PUT
U
IA
A
U
LOG
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
25
24
23
22
21
20
19
18
17
16
15

+A
IN

–A
IN

V
REF

REFCOMP
AGND
D11(MSB)
D10
D9
D8
D7
D6
D5
D4
DGND
AV
DD
OV
DD

V
SS

BUSY
CS
CONVST
RD
SHDN
NAP/SLP
OGND
D0
D1
D2
D3
SW PACKAGE
28-LEAD PLASTIC SO WIDE
G PACKAGE
28-LEAD PLASTIC SO
TOP VIEW
T
JMAX
= 110°C, θ
JA
= 95°C/W (G)
T
JMAX
= 110°C, θ
JA
= 130°C/W (SW)