Datasheet

LTC2389-16
5
238916f
Digital 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 4)
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
IH
High Level Input Voltage
l
0.8 • OV
DD
V
V
IL
Low Level Input Voltage
l
0.2 • OV
DD
V
I
IN
Digital Input Current V
IN
= 0V to OV
DD
l
–10 10 µA
C
IN
Digital Input Capacitance 5 pF
V
OH
High Level Output Voltage I
OUT
= –500µA
l
OV
DD
– 0.2 V
V
OL
Low Level Output Voltage I
OUT
= 500µA
l
0.2 V
I
OZ
Hi-Z Output Leakage Current V
OUT
= 0V to OV
DD
l
–10 10 µA
I
SOURCE
Output Source Current V
OUT
= 0V –10 mA
I
SINK
Output Sink Current V
OUT
= OV
DD
10 mA
power requirements
The l denotes the specifications which apply over the full operating temperature
range, otherwise specifications are at T
A
= 25°C. (Note 4)
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
DD
Supply Voltage
l
4.75 5 5.25 V
OV
DD
Supply Voltage
l
1.71 5.25 V
I
VDD
Core Supply Current 2.5Msps Sample Rate
2.5Msps Sample Rate, Internal Reference Enabled
l
32.5
34.1
36 mA
mA
I
OVDD
I/O Supply Current 2.5Msps Sample Rate (C
L
= 15pF) 1.6 mA
I
PD
Power Down Current
(I
VDD
+ I
OVDD
)
Conversion Done, P
D
= OV
DD
, Other Digital Inputs
Tied to OV
DD
or GND
l
15 250 µA
P
D
Power Dissipation 2.5Msps Sample Rate
Conversion Done, P
D
= OV
DD
, Other Digital Inputs
Tied to OV
DD
or GND
162.5
75
180
1250
mW
µW
timing characteristics
The l denotes the specifications which apply over the full operating temperature
range, otherwise specifications are at T
A
= 25°C. (Note 4)
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
f
SMPL
Sampling Frequency Parallel Output Modes
Serial Output Mode
l
l
2.5
2.0
Msps
Msps
t
CONV
Conversion Time
l
245 280 310 ns
t
ACQ
Acquisition Time t
ACQ
= t
CYC
– t
CONV
– t
BUSYLH
(Note 10)
l
77 110 ns
t
CYC
Time Between CNVST↓
l
400 ns
t
CNVSTL
CNVST Low Time
l
20 ns
t
CNVSTH
CNVST High Time
l
200 ns
t
BUSYLH
CNVST↓ to BUSY Delay
C
L
= 15pF
l
13 ns
t
RESETH
RESET Pulse Width
l
200 ns
t
SCK
SCK Period (Notes 5, 11)
l
10 ns
t
SCKH
SCK High Time
l
4 ns
t
SCKL
SCK Low Time
l
4 ns
t
DSCK
SCK↓ Delay From CS↓
l
10 ns
t
SSDI
SDI Setup Time From SCK↓
l
2 ns