![](http://datasheet.mmic.net.cn/Linear-Technology/LTC2308IUF-TRPBF_datasheet_105407/LTC2308IUF-TRPBF_4.png)
LTC2308
4
2308fb
INTERNAL REFERENCE CHARACTERISTICS The l denotes the specications which apply over the
full operating temperature range, otherwise specications are at TA = 25°C. (Note 4)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VREF Output Voltage
IOUT = 0
l
2.47
2.50
2.53
V
VREF Output Tempco
IOUT = 0
±25
ppm/°C
VREF Output Impedance
–0.1mA ≤ IOUT ≤ 0.1mA
8
kΩ
VREFCOMP Output Voltage
IOUT = 0
4.096
V
VREF Line Regulation
AVDD = 4.75V to 5.25V
0.8
mV/V
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. (Note 4)
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VIH
High Level Input Voltage
DVDD = 5.25V
l
2.4
V
VIL
Low Level Input Voltage
DVDD = 4.75V
l
0.8
V
IIN
High Level Input Current
VIN = VDD
l
±10
μA
CIN
Digital Input Capacitance
5pF
VOH
High Level Output Voltage
OVDD = 4.75V, IOUT = –10μA
OVDD = 4.75V, IOUT = –200μA
l
4
4.74
V
VOL
Low Level Input Voltage
OVDD = 4.75V, IOUT = 160μA
OVDD = 4.75V, IOUT = 1.6mA
l
0.05
0.4
V
IOZ
Hi-Z Output Leakage
VOUT = 0V to OVDD, CONVST High
l
±10
μA
COZ
Hi-Z Output Capacitance
CONVST High
15
pF
ISOURCE
Output Source Current
VOUT = 0V
–10
mA
ISINK
Output Sink Current
VOUT = OVDD
10
mA
POWER REQUIREMENTS The l denotes the specications which apply over the full operating temperature
range, otherwise specications are at TA = 25°C. (Note 4)
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
AVDD
Analog Supply Voltage
4.75
5
5.25
V
DVDD
Digital Supply Voltage
4.75
5
5.25
V
OVDD
Output Driver Supply Voltage
2.7
5.25
V
IDD
Supply Current
Nap Mode
Sleep Mode
CL = 25pF
CONVST = 5V, Conversion Done
l
3.5
180
7
4.2
400
20
mA
μA
PD
Power Dissipation
Nap Mode
Sleep Mode
17.5
0.9
35
mW
μW