LTC1420I データシートの表示（PDF） - Linear Technology
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LTC1420I Datasheet PDF : 20 Pages
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LTC1420
ABSOLUTE AXI U RATI GS
0VDD = 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 .............................................. 500mW
Operating Temperature Range
LTC1420C ............................................... 0°C to 70°C
LTC1420I ............................................ – 40°C to 85°C
Storage Temperature Range ................. – 65°C to 150°C
Lead Temperature (Soldering, 10 sec).................. 300°C
UW U
PACKAGE/ORDER I FOR ATIO
+AIN 1
–AIN 2
VCM 3
SENSE 4
VREF 5
GND 6
VDD 7
GND 8
D11 (MSB) 9
D10 10
D9 11
D8 12
D7 13
D6 14
TOP VIEW
28 GAIN
27 OF
26 CLK
25 VSS
24 GND
23 VDD
22 OVDD
21 OGND
20 D0
19 D1
18 D2
17 D3
16 D4
15 D5
GN PACKAGE
28-LEAD PLASTIC SSOP
TJMAX = 110°C, θJA = 110°C/W
ORDER PART
NUMBER
LTC1420CGN
LTC1420IGN
Consult factory for Military grade parts.
CONVERTER CHARACTERISTICS The q denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. With Internal 4.096V Reference. Specifications are guaranteed for both
dual supply and single supply operation. (Note 5)
PARAMETER
Resolution (No Missing Codes)
Integral Linearity Error
Differential Linearity Error
Offset Error
Full-Scale Error
Full-Scale Tempco
CONDITIONS
(Note 7)
(Note 8)
IOUT(REF) = 0
MIN
q 12
q
q
q
TYP
± 0.35
± 0.25
±5
±10
±15
MAX UNITS
Bits
±1
LSB
±1
LSB
12
LSB
16
LSB
30
LSB
ppm/°C
A ALOG I PUT The q denotes the specifications which apply over the full operating temperature range, otherwise
specifications are at TA = 25°C. Specifications are guaranteed for both dual supply and single supply operation. (Note 5)
SYMBOL PARAMETER
CONDITIONS
MIN TYP MAX UNITS
VIN
Analog Input Range (Note 9)
+AIN – (–AIN)
IIN
Analog Input Leakage Current
CIN
Analog Input Capacitance
VREF = 4.096V (SENSE = 0V), GAIN = 5V (1×) q
VREF = 4.096V (SENSE = 0V), GAIN = 0V (2×) q
VREF = 2.048V (SENSE = VREF), GAIN = 5V (1×) q
VREF = 2.048V (SENSE = VREF), GAIN = 0V (2×) q
External VREF (SENSE = 5V), GAIN = 5V (1×) q
External VREF (SENSE = 5V), GAIN = 0V (2×) q
q
Between Conversions
During Conversions
±2.048
V
±1.024
V
±1.024
V
±0.512
V
± VREF/2
V
± VREF/4
V
±20
µA
12
pF
6
pF
tACQ
tAP
tjitter
CMRR
Sample-and-Hold Acquisition Time
Sample-and-Hold Aperture Delay Time
Sample-and-Hold Aperture Delay Time Jitter
Analog Input Common Mode Rejection Ratio
–2.048V < (–AIN = +AIN) < 2.048V
30
ns
– 250
ps
0.6
ps
75
dB
2
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