LTC1852 Ver la hoja de datos (PDF) - Linear Technology
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LTC1852 Datasheet PDF : 24 Pages
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LTC1852/LTC1853
INTERNAL REFERENCE TA = 25°C. (Notes 5, 6)
PARAMETER
CONDITIONS
REFOUT Output Voltage
REFOUT Output Temperature Coefficient
IOUT = 0
IOUT = 0
REFOUT Line Regulation
Reference Buffer Gain
2.7 ≤ VDD ≤ 5.5, IOUT = 0
REFCOMP Output Voltage
REFCOMP Impedance
External 2.5V Reference (VDD = 5V)
Internal 2.5V Reference (VDD = 5V)
Impedance to GND, REFIN = VDD
MIN
2.48
1.6368
4.092
4.060
TYP
2.50
± 15
0.01
1.6384
4.096
4.096
19.2
MAX
2.52
1.6400
4.100
4.132
UNITS
V
ppm/°C
LSB/V
V/V
V
V
kΩ
DIGITAL INPUTS AND DIGITAL OUTPUTS The ● denotes the specifications which apply over the full
operating temperature range, otherwise specifications are at TA = 25°C. VDD = 5V (Note 5)
SYMBOL PARAMETER
CONDITIONS
MIN
TYP
MAX UNITS
VIH
High Level Input Voltage
VDD = 5.25V
● 2.4
V
VIL
Low Level Input Voltage
VDD = 4.75V
●
0.8
V
IIN
Digital Input Current
VIN = 0V to VDD
●
±5
μA
CIN
Digital Input Capacitance
1.5
pF
VOH
High Level Output Voltage
VDD = 4.75V, IO = –10μA
4.5
V
VDD = 4.75V, IO = – 200μA
●4
V
VOL
Low Level Output Voltage
VDD = 4.75V, IO = 160μA
VDD = 4.75V, IO = 1.6mA
●
IOZ
Hi-Z Output Leakage D11 to D0, A0, A1, A2OUT, DIFFOUT VOUT = 0V to VDD, CS High
●
0.5
V
0.10
0.4
V
±10
μA
COZ
Hi-Z Capacitance D11 to D0
CS High (Note 9)
●
15
pF
ISOURCE Output Source Current
VOUT = 0V
–20
mA
ISINK
Output Sink Current
VOUT = VDD
30
mA
DIGITAL INPUTS AND DIGITAL OUTPUTS The ● denotes the specifications which apply over the full
operating temperature range, otherwise specifications are at TA = 25°C. VDD = 5V (Note 5)
SYMBOL PARAMETER
CONDITIONS
MIN
TYP
MAX UNITS
VIH
High Level Input Voltage
VDD = 3.3V
● 1.9
V
VIL
Low Level Input Voltage
VDD = 2.7V
●
0.45
V
IIN
Digital Input Current
VIN = 0V to VDD
●
±5
μA
CIN
Digital Input Capacitance
1.5
pF
VOH
High Level Output Voltage
VDD = 2.7V, IO = –10μA
2.5
V
VDD = 2.7V, IO = – 200μA
●2
V
VOL
Low Level Output Voltage
VDD = 2.7V, IO = 160μA
VDD = 2.7V, IO = 1.6mA
●
IOZ
Hi-Z Output Leakage D11 to D0, A0, A1, A2OUT, DIFFOUT VOUT = 0V to VDD, CS High
●
0.05
V
0.10
0.4
V
±10
μA
COZ
Hi-Z Capacitance D11 to D0
CS High (Note 9)
●
15
pF
ISOURCE Output Source Current
VOUT = 0V
–10
mA
ISINK
Output Sink Current
VOUT = VDD
15
mA
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