Datasheet

2
LTC1402
TOP VIEW
GN PACKAGE
16-LEAD NARROW PLASTIC SSOP
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
AV
DD
AGND1
A
IN
+
A
IN
–
V
REF
AGND2
GAIN
BIP/UNI
CONV
SCK
V
SS
DGND
DV
DD
0V
DD
D
OUT
OGND
PACKAGE/ORDER INFORMATION
W
U
U
ABSOLUTE MAXIMUM RATINGS
W
WW
U
AV
DD
= DV
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 (V
DD
+ 0.3V)
Digital Output Voltage......... (V
SS
– 0.3V) to (V
DD
+ 0.3V)
Power Dissipation.............................................. 250mW
Operation Temperature Range
LTC1402C ............................................... 0°C to 70°C
LTC1402I............................................ –40°C to 85°C
Storage Temperature Range ................. –65°C to 150°C
Lead Temperature (Soldering, 10 sec).................. 300°C
ORDER PART
NUMBER
GN PART MARKING
1402
1402I
Consult factory for Military grade parts.
LTC1402CGN
LTC1402IGN
T
JMAX
= 125°C, θ
JA
= 150°C/W
CONVERTER CHARACTERISTICS
U
The ● denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. With internal reference (Note 5).
PARAMETER CONDITIONS MIN TYP MAX UNITS
Resolution (No Missing Codes) ● 12 Bits
Integral Linearity Error (Note 6) ● ±0.35 ±1LSB
Differential Linearity (Note 6) ● ±0.25 ±1LSB
Offset Error (Note 6) ● ±2 ±10 LSB
Full-Scale Error (Note 6) ● ±10 ±15 LSB
Full-Scale Tempco Internal Reference (Note 6) ±15 ppm/°C
External Reference ±1 ppm/°C
The ● denotes the specifications which apply over the full operating temperature range,
otherwise specifications are at T
A
= 25°C. (Note 5)
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
IN
Analog Differential Input Range (Notes 3, 11) Bipolar Mode with BIP/UNI High ● ±2.048 V
4.75V ≤ V
DD
≤ 5.25V
–5.25V ≤ V
SS
≤ –4.75V
Unipolar Mode with BIP/UNI Low ● 0 to 4.096 V
4.75V ≤ V
DD
≤ 5.25V
–5.25V ≤ V
SS
≤ 0V
V
CM
Analog Common Mode + Differential Dual ±5V Supply –2.5 to 5 V
Input Range (Note 12) Single 5V Supply 0 to 5 V
I
IN
Analog Input Leakage Current ● 1 µA
C
IN
Analog Input Capacitance 10 pF
t
ACQ
Sample-and-Hold Acquisition Time (Note 9) ● 57 ns
t
AP
Sample-and-Hold Aperture Delay Time 2.6 ns
t
JITTER
Sample-and-Hold Aperture Delay Time Jitter 1 ps
CMRR Analog Input Common Mode Rejection Ratio f
IN
= 1MHz, V
IN
= 2V to –2V –62 dB
f
IN
= 100MHz, V
IN
= 2V to –2V –24 dB
A ALOG I PU
T
UU