
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
AVDD
AGND1
AIN
+
AIN
–
VREF
AGND2
GAIN
BIP/UNI
CONV
SCK
VSS
DGND
DVDD
0VDD
DOUT
OGND
PACKAGE/ORDER INFORMATION
W
U
ABSOLUTE MAXIMUM RATINGS
W
WW
U
AVDD = DVDD = OVDD = VDD (Notes 1, 2)
Supply Voltage (VDD) ................................................. 6V
Negative Supply Voltage (VSS) ............................... – 6V
Total Supply Voltage (VDD to VSS) .......................... 12V
Analog Input Voltage
(Note 3) .......................... (VSS – 0.3V) to (VDD + 0.3V)
Digital Input Voltage
(Note 4) .......................... (VSS – 0.3V) to (VDD + 0.3V)
Digital Output Voltage ......... (VSS – 0.3V) to (VDD + 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
TJMAX = 125°C, θJA = 150°C/ W
CONVERTER CHARACTERISTICS
U
The q denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. With internal reference (Note 5).
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Resolution (No Missing Codes)
q
12
Bits
Integral Linearity Error
(Note 6)
q
±0.35
±1LSB
Differential Linearity
(Note 6)
q
±0.25
±1LSB
Offset Error
(Note 6)
q
±2
±10
LSB
Full-Scale Error
(Note 6)
q
±10
±15
LSB
Full-Scale Tempco
Internal Reference (Note 6)
±15
ppm/
°C
External Reference
±1
ppm/
°C
The q denotes the specifications which apply over the full operating temperature range,
otherwise specifications are at TA = 25°C. (Note 5)
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VIN
Analog Differential Input Range (Notes 3, 11)
Bipolar Mode with BIP/UNI High
q
±2.048
V
4.75V
≤ VDD ≤ 5.25V
– 5.25V
≤ VSS ≤ –4.75V
Unipolar Mode with BIP/UNI Low
q
0 to 4.096
V
4.75V
≤ VDD ≤ 5.25V
– 5.25V
≤ VSS ≤ 0V
VCM
Analog Common Mode + Differential
Dual
±5V Supply
–2.5 to 5
V
Input Range (Note 12)
Single 5V Supply
0 to 5
V
IIN
Analog Input Leakage Current
q
1
A
CIN
Analog Input Capacitance
10
pF
tACQ
Sample-and-Hold Acquisition Time
(Note 9)
q
57
ns
tAP
Sample-and-Hold Aperture Delay Time
2.6
ns
tJITTER
Sample-and-Hold Aperture Delay Time Jitter
1
ps
CMRR
Analog Input Common Mode Rejection Ratio
fIN = 1MHz, VIN = 2V to – 2V
– 62
dB
fIN = 100MHz, VIN = 2V to – 2V
– 24
dB
A ALOG I PUT
U