Datasheet
LTC2480
5
2480fd
poWer reQuireMenTs
The l denotes the specifications which apply over the full operating temperature
range, otherwise specifications are at T
A
= 25°C. (Note 3)
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
CC
Supply Voltage
l
2.7 5.5 V
I
CC
Supply Current Conversion Mode (Note 12)
Sleep Mode (Note 12)
H-Grade
l
l
l
160
1
250
2
20
µA
µA
µA
analog inpuTs anD DigiTal ouTpuTs
The l denotes the specifications which apply over the
full operating temperature range, otherwise specifications are at T
A
= 25°C. (Note 3)
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
I
IN
Digital Input Current SCK 0V ≤ V
IN
≤ V
CC
(Note 10)
l
–10 10 µA
C
IN
Digital Input Capacitance CS, f
O
, SDI 10 pF
C
IN
Digital Input Capacitance SCK 10 pF
V
OH
High Level Output Voltage SDO I
O
= –800µA
l
V
CC
– 0.5 V
V
OL
Low Level Output Voltage SDO I
O
= 1.6mA
l
0.4 V
V
OH
High Level Output Voltage SCK I
O
= –800µA
l
V
CC
– 0.5 V
V
OL
Low Level Output Voltage SCK I
O
= 1.6mA
l
0.4 V
I
OZ
Hi-Z Output Leakage SDO
l
–10 10 µA
TiMing characTerisTics
The l denotes the specifications which apply over the full operating temperature
range, otherwise specifications are at T
A
= 25°C. (Note 3)
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
f
EOSC
External Oscillator Frequency Range (Note 15)
l
10 4000 kHz
t
HEO
External Oscillator High Period
l
0.125 100 µs
t
LEO
External Oscillator Low Period
l
0.125 100 µs
t
CONV_1
Conversion Time for 1x Speed Mode 50Hz Mode
50Hz Mode (H-Grade)
60Hz Mode
60Hz Mode (H-Grade)
Simultaneous 50Hz/60Hz Mode
Simultaneous 50Hz/60Hz Mode (H-Grade)
l
l
l
l
l
l
157.2
157.2
131.0
131.0
144.1
144.1
160.3
160.3
133.6
133.6
146.9
146.9
163.5
165.1
136.3
137.6
149.9
151.0
ms
ms
ms
ms
ms
ms
External Oscillator
l
41036/f
EOSC
(in kHz) ms
t
CONV_2
Conversion Time for 2x Speed Mode 50Hz Mode
50Hz Mode (H-Grade)
60Hz Mode
60Hz Mode (H-Grade)
Simultaneous 50Hz/60Hz Mode
Simultaneous 50Hz/60Hz Mode (H-Grade)
l
l
l
l
l
l
78.7
65.6
72.2
80.3
66.9
73.6
81.9
82.7
68.2
68.9
75.1
75.6
ms
ms
ms
ms
ms
ms
External Oscillator
l
20556/f
EOSC
(in kHz) ms
f
ISCK
Internal SCK Frequency Internal Oscillator (Note 10)
External Oscillator (Notes 10, 11)
38.4
f
EOSC
/8
kHz
kHz
D
ISCK
Internal SCK Duty Cycle (Note 10)
l
45 55 %
f
ESCK
External SCK Frequency Range (Note 10)
l
4000 kHz