LTC2351-12
4
235112fa
POWER REQUIREMENTS The l denotes the specications which apply over the full operating temperature
range, otherwise specications are at TA = 25°C. With internal reference, VDD = VCC = 3V.
TIMING CHARACTERISTICS The l denotes the specications which apply over the full operating temperature
range, otherwise specications are at TA = 25°C. VDD = 3V.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VDD, VCC
Supply Voltage
2.7
3.0
3.6
V
IDD + ICC
Supply Current
Active Mode, fSAMPLE = 1.5Msps
Active Mode, fSAMPLE = 1.5Msps (LTC2351H-12)
Nap Mode
Nap Mode (LTC2351H-12)
Sleep Mode
l
5.5
6
1.5
1.8
4.0
8
9
2
2.5
15
mA
μA
PD
Power Dissipation
Active Mode with SCK, fSAMPLE = 1.5Msps
16.5
mW
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
fSAMPLE(MAX) Maximum Sampling Rate per Channel
(Conversion Rate)
l
250
kHz
tTHROUGHPUT Minimum Sampling Period (Conversion + Acquisiton Period)
l
4μs
tSCK
Clock Period
(Note 16)
l
40
10000
ns
tCONV
Conversion Time
(Notes 6, 17)
96
SCLK cycles
t1
Minimum High or Low SCLK Pulse Width
(Note 6)
2
ns
t2
CONV to SCK Setup Time
(Notes 6, 10)
3
10000
ns
t3
SCK Before CONV
(Note 6)
0
ns
t4
Minimum High or Low CONV Pulse Width
(Note 6)
4
ns
t5
SCK
↑ to Sample Mode
(Note 6)
4
ns
t6
CONV
↑ to Hold Mode
(Notes 6, 11)
1.2
ns
t7
96th SCK
↑ to CONV↑ Interval (Affects Acquisition Period)
(Notes 6, 7, 13)
45
ns
t8
Minimum Delay from SCK to Valid Bits 0 Through 11
(Notes 6, 12)
8
ns
DIGITAL INPUTS AND DIGITAL OUTPUTS The l denotes the specications which apply over the
full operating temperature range, otherwise specications are at TA = 25°C. VDD = VCC = 3V.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VIH
High Level Input Voltage
VDD = 3.3V
l
2.4
V
VIL
Low Level Input Voltage
VDD = 2.7V
l
0.6
V
IIN
Digital Input Current
VIN = 0V to VDD
l
±10
μA
CIN
Digital Input Capacitance
5pF
VOH
High Level Output Voltage
VDD = 3V, IOUT = –200μA
l
2.5
2.9
V
VOL
Low Level Output Voltage
VDD = 2.7V, IOUT= 160μA
VDD = 2.7V, IOUT = 1.6mA
l
0.05
0.4
V
IOZ
Hi-Z Output Leakage DOUT
VOUT = 0V and VDD
l
±10
μA
COZ
Hi-Z Output Capacitance DOUT
1pF
ISOURCE
Output Short-Circuit Source Current
VOUT = 0V, VDD = 3V
20
mA
ISINK
Output Short-Circuit Sink Current
VOUT = VDD = 3V
15
mA