Datasheet
2
LTC1412
ABSOLUTE MAXIMUM RATINGS
W
WW
U
PACKAGE/ORDER INFORMATION
W
U
U
AV
DD
= DV
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
LTC1412C ............................................... 0°C to 70°C
LTC1412I............................................ –40°C to 85°C
Storage Temperature Range ................. –65°C to 150°C
Lead Temperature (Soldering, 10 sec)..................300°C
ORDER PART
NUMBER
T
JMAX
= 110°C, θ
JA
= 95°C/ W
Consult factory for Military grade parts.
LTC1412CG
LTC1412IG
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 10 pF
During Conversions 4 pF
t
ACQ
Sample-and-Hold Acquisition Time ● 20 50 ns
t
AP
Sample-and-Hold Aperture Delay Time –0.5 ns
t
jitter
Sample-and-Hold Aperture Delay Time Jitter 1 ps
RMS
CMRR Analog Input Common Mode Rejection Ratio –2.5V < (A
IN
–
= A
IN
) < 2.5V 63 dB
With internal reference (Notes 5, 6)
CCHARA TERIST
ICS
CO
U
VERTER
PARAMETER CONDITIONS MIN TYP MAX UNITS
Resolution (No Missing Codes) ● 12 Bits
Integral Linearity Error (Note 7) ● ±0.35 ±1 LSB
Differential Linearity Error ● ±0.25 ±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
PUT
U
IA
A
U
LOG
(Note 5)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
TOP VIEW
G PACKAGE
28-LEAD PLASTIC SSOP
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
DV
DD
V
SS
BUSY
CS
CONVST
OGND
OV
DD
DV
DD
DGND
D0
D1
D2
D3