BU7251G Datasheet, PDF (3/19 Pages) Rohm – Comparators: Low Voltage CMOS

BU7251G,BU7251SG, BU7231G,BU7231SG,
BU7252F/FVM,BU7252S F/FVM,BU7232F/FVM,BU7232S F/FVM
Technical Note
○BU7231 family (Unless otherwise specified VDD=+3[V], VSS=0[V], Ta=25[℃])
Parameter
Input Offset Voltage ^(*5)
Input Offset Current ^(*5)
Input Bias Current ^(*5)
Guaranteed Limit
Symbol
Temperature
range
BU7231G,BU7231SG
Unit
Min. Typ. Max.
Vio
25℃
-
1
11 mV
Iio
25℃
-
1
-
pA
Ib
25℃
-
1
-
pA
Condition
-
-
-
Input Common-mode voltage Range Vicm
25℃
0
-
3
V (VDD-VSS)=3[V]
Large Signal Voltage Gain
AV
25℃
-
90
-
dB RL=10[kΩ]
Supply current
IDD
25℃
full range
-
-
5
-
15
30
μA RL=∞
Power supply rejection ratio
PSRR 25℃
-
80
-
dB
-
Common-mode rejection ratio
Output source current ^(*6)
Output sink current ^(*6)
High Level Output Voltage ^(*7)
Low Level Output Voltage ^(*7)
CMRR
IOH
IOL
VOH
VOL
25℃
25℃
25℃
25℃
25℃
-
80
-
dB
-
1
2
-
mA VDD-0.4
3
6
-
mA VSS+0.4
VDD-0.1 -
-
V RL=10[kΩ]
-
- VSS+0.1 V RL=10[kΩ]
Output rise time
Tr
25℃
-
50
-
ns CL=15pF 100mV over drive
Output fall time
Tf
25℃
-
20
-
ns CL=15pF 100mV over drive
Propagation delay L to H
TPLH 25℃
-
1.7
-
μs CL=15pF 100mV over drive
Propagation delay H to L
TPHL 25℃
-
0.5
-
mV CL=15pF 100mV over drive
(*5) Abusolute values
(*6) Reference to power dissipation under the high temperature environment and decide the output current.
Continuous short circuit is occurring the degenerate of output current characteristics.
(*7) Full range BU7231：Ta=-40[℃] to +85[℃] BU7231S,BU7232S：Ta=-40[℃] to +105[℃]
○BU7232 family (Unless otherwise specified VDD=+3[V], VSS=0[V], Ta=25[℃])
Parameter
Input Offset Voltage ^(*5)
Input Offset Current ^(*5)
Input Bias Current ^(*5)
Guaranteed Limit
Symbol
Temperature
range
BU7232F/FVM
BU7232S F/FVM
Unit
Min. Typ. Max.
Vio
25℃
-
1
11 mV
Iio
25℃
-
1
-
pA
Ib
25℃
-
1
-
pA
Condition
-
-
-
Input Common-mode voltage Range Vicm
25℃
0
-
3
V (VDD-VSS)=3[V]
Large Signal Voltage Gain
AV
25℃
-
90
-
dB RL=10[kΩ]
Supply current
25℃
-
IDD
full range
-
10
25
μA RL=∞
-
50
Power supply rejection ratio
PSRR 25℃
-
80
-
dB
-
Common-mode rejection ratio
Output source current ^(*6)
Output sink current ^(*6)
High Level Output Voltage ^(*7)
Low Level Output Voltage ^(*7)
CMRR
IOH
IOL
VOH
VOL
25℃
25℃
25℃
25℃
25℃
-
80
-
dB
-
1
2
-
mA VDD-0.4
3
6
-
mA VSS+0.4
VDD-0.1 -
-
V RL=10[kΩ]
-
- VSS+0.1 V RL=10[kΩ]
Output rise time
Tr
25℃
-
50
-
ns CL=15pF 100mV over drive
Output fall time
Tf
25℃
-
20
-
ns CL=15pF 100mV over drive
Propagation delay L to H
TPLH 25℃
-
1.7
-
μs CL=15pF 100mV over drive
Propagation delay H to L
TPHL 25℃
-
0.5
-
mV CL=15pF 100mV over drive
(*5) Abusolute values
(*6) Reference to power dissipation under the high temperature environment and decide the output current.
Continuous short circuit is occurring the degenerate of output current characteristics.
(*7) Full range,BU7232：Ta=-40[℃] to +85[℃] BU7232S：Ta=-40[℃] to +105[℃]
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