BU7251G Datasheet, PDF (9/19 Pages) Rohm – Comparators: Low Voltage CMOS

BU7251G,BU7251SG, BU7231G,BU7231SG,
BU7252F/FVM,BU7252S F/FVM,BU7232F/FVM,BU7232S F/FVM
Technical Note
○BU7231 series
10.0
BU7231 family
7.5
5.0
2.5
-40℃
25℃
0.0
-2.5
105℃
85℃
-5.0
-7.5
-10.0
1
2
3
4
5
6
SUPP LY VOLTAG E [V]
Fig. 57
Input Offset Voltage – Supply Voltage
(Vicm=VDD, Vout=0.1[V])
160
BU7231 family
140
120
105℃
85℃
100
-40℃
25℃
80
60
1
2
3
4
5
6
SUPPLY VOLTAGE [V]
Fig. 60
Large Signal Voltage Gain – Supply Voltage
BU7231 family
120
100
5.5V
80
60
3.0V
1.8V
40
20
0
-60 -30 0
30 60 90 120
AMBIENT TEMPERATURE [℃]
Fig. 63
Common Mode Rejection Ratio
– Ambient Temperature (VDD=3[V])
1.5
BU7231 family
10.0
BU7231 family
15
BU7231 family
7.5
5.0
2.5
3.0V
1.8V
0.0
-2.5
5.5V
-5.0
-7.5
10
5
85℃ 105℃
0
-40℃
25℃
-5
-10
-10.0
-60 -30 0
30 60 90 120
AMBIENT TEMPERATURE [℃]
Fig. 58
Input Offset Voltage – Ambient Temperature
(Vicm=VDD, Vout=0.1[V])
-15
-1
0
1
2
3
4
INPUT VOLTAGE [V]
Fig. 59
Input Offset Voltage – Input Voltage
(VDD=3[V])
160
BU7231 family
120
BU7231 family
140
120
100
3.0V
80
1.8V
5.5V
100
85℃
105℃
80
60
25℃
-40℃
40
20
60
-60 -30 0 30 60 90 120
AMBIENT TEMPERATURE [℃]
Fig. 61
Large Signal Voltage Gain
– Ambient Temperature
BU7231 family
120
0
1
2
3
4
5
6
SUPPLY VOLTAGE [V]
Fig. 62
Common Mode Rejection Ratio
– Supply Voltage (VDD=3[V])
5
BU7231 family
100
4
80
3
60
5.5V
3.0V
2
40
1.8V
20
1
0
-60 -30 0
30 60 90 120
AMBIENT TEMPERATURE [℃]
Fig. 64
Power Supply Rejection Ratio
– Ambient Temperature
0
-60 -30
0
30 60 90 120
AMBIENT TEMPERATURE [℃]
Fig. 65
Propagation Delay L-H
– Ambient Temperature
1.2
0.9
5.5V
0.6
1.8V
0.3
3.0V
0.0
-60 -30
0
30 60 90 120
AMBIENT TEMPERATURE [℃]
Fig. 66
Propagation Delay H-L– Ambient Temperature
(*) The above date is ability value of sample, it is not guaranteed.
BU7231G：-40[℃] to+85[℃]
BU7231SG：-40[℃] to+105[℃]
9/18