U
UW
CO VERTER A D ULTIPLEXER CHARACTERISTICS (Note 3)
LTC1283
PARAMETER
Offset Error
Linearity Error
Gain Error
Minimum Resolution for Which No
Missing Codes are Guaranteed
Reference Input Resistance
Analog and REF Input Range
On Channel Leakage Current
(Note 7)
Off Channel Leakage Current
(Note 7)
CONDITIONS
(Note 4)
(Notes 4 and 5)
(Note 4)
(Note 6)
On Channel = 3V
Off Channel = 0V
On Channel = 0V
Off Channel = 3V
On Channel = 3V
Off Channel = 0V
On Channel = 0V
Off Channel = 3V
LTC1283A
MIN TYP MAX
●
±0.5
●
±0.5
●
±1.0
●
10
LTC1283
MIN TYP MAX
±0.5
±0.5
±2.0
10
10
10
(V –) – 0.05V to VCC + 0.05V
●
1
1
●
–1
–1
●
–1
–1
●
1
1
UNITS
LSB
LSB
LSB
Bits
kΩ
V
μA
μA
μA
μA
AC CHARACTERISTICS (Note 3)
SYMBOL
tACC
tSMPL
tCONV
tdDO
tdis
ten
thDO
tf
tr
CIN
PARAMETER
Delay Time From CS↓ to DOUT Data Valid
Analog Input Sample Time
Conversion Time
Delay Time, SCLK↓ to DOUT Data Valid
Delay Time, CS↑ to DOUT Hi-Z
Delay Time, 2nd CLK↓ to DOUT Enabled
Time Output Data Remains Valid After SCLK↓
DOUT Fall Time
DOUT Rise Time
Input Capacitance
CONDITIONS
(Note 8)
See Operating Sequence
See Operating Sequence
See Test Circuts
See Test Circuits
See Test Circuits
See Test Circuits
See Test Circuits
Analog Inputs On Channel
Off Channel
Digital Inputs
LTC1283/LTC1283A
MIN TYP MAX
UNITS
2
ACLK Cycles
5
SCLK Cycles
44
ACLK Cycles
●
400 900
ns
●
240 500
ns
●
300 800
ns
75
ns
●
90
300
ns
●
80
300
ns
65
pF
5
pF
5
pF
DIGITAL A D DC ELECTRICAL CHARACTERISTICS (Note 3)
SYMBOL
VIH
VIL
IIH
IIL
VOH
PARAMETER
High Level Input Voltage
Low Level Input Voltage
High Level Input Current
Low Level Input Current
High Level Output Voltage
VOL
Low Level Output Voltage
CONDITIONS
VCC = 3.6V
VCC = 3V
VIN = VCC
VIN = 0V
VCC = 3V, IO = – 20μA
IO = – 200μA
VCC = 3V, IO = 20μA
IO = 400μA
LTC1283/LTC1283A
MIN TYP MAX
● 1.7
●
0.45
●
2.5
●
– 2.5
2.6
2.8
● 2.0
0.05
●
0.10 0.30
UNITS
V
V
μA
μA
V
V
V
V
1283fb
3