BU7232FVM,BU7232FVM pdf中文资料,BU7232FVM引脚图,BU7232FVM电路-Datasheet-电子工程世界

文档预览

ROHM’s Selection Operational Amplifier/Comparator Series

Comparators:

Low Voltage CMOS

BU7251G,BU7251SG,BU7231G,BU7231SG,

BU7252F/FVM,BU7252S F/FVM,BU7232F/FVM,BU7232S F/FVM

No.09049EAT06

●Description

CMOS comparator BU7251/BU7231family and BU7252/BU7232 family are input full swing and push pull output comparator.

These ICs integrate one op-amp or two independent op-amps and phase compensation capacitor on a single chip.

The features of these ICs are low operating supplyVoltage that is +1.8V to +5.5V(single supply) and low supply current,

extremely low input bias current.

High speed

Single

Dual

BU7251 G

(BU7251SG:105

℃)

BU7252 F/FVM

(BU7252S F/FVM:105

℃)

Low power

Single

Dual

BU7231 G

(BU7231SG:105

℃)

BU7232 F/FVM

(BU7232S F/FVM:105

℃)

●Features

1) Low operating supply voltage (+1.8[V]½+5.5[V])

2) +1.8 [V]½+5.5[V](single supply)

±0.9[V]½±2.75[V](split supply)

3) Input and Output full swing

4) Push-pull output type

5) High speed operation

(BU7251 family, BU7252 family)

6) Low supply current

(BU7231 family, BU7232 family)

7) Internal ESD protection

Human body model (HBM) ±4000[V](Typ.)

8) Wide temperature range

-40[℃]½+85[℃]

(BU7251G,BU7252 family, BU7231G, BU7232 family)

-40[℃]½+105[℃]

(BU7251SG,BU7252S family, BU7231SG,BU7232S family)

●

Pin Assignments

IN-

VSS

IN+

－

VDD

OUT1

IN1-

IN1+

- +

+ -

CH2

CH1

VDD

OUT2

IN2-

IN2+

＋

OUT

VSS

SSOP5

BU7251G

BU7251SG

BU7231G

BU7231SG

SOP8

BU7252F

BU7252SF

BU7232F

BU7232SF

MSOP8

BU7252FVM

BU7252SFVM

BU7232FVM

BU7232SFVM

www.rohm.com

1/18

2009.05 - Rev.A

BU7251G,BU7251SG, BU7231G,BU7231SG,

BU7252F/FVM,BU7252S F/FVM,BU7232F/FVM,BU7232S F/FVM

●Absolute

maximum ratings (Ta=25[℃])

Parameter

Supply Voltage

Differential Input Voltage

(*1)

Input Common-mode voltage range

Operating Temperature

Storage Temperature

Maximum junction Temperature

Symbol

VDD-VSS

Vid

Vicm

Topr

Tstg

Tjmax

Technical Note

Rating

BU7251G,BU7252 F/FVM

BU7251SG,BU7252S F/FVM

BU7231G,BU7232 F/FVM

BU7231SG,BU7232S F/FVM

VDD-VSS

(VSS-0.3) to VDD+0.3

-40 to+85

-40 to+105

-55 to+125

+125

Unit

℃

Note Absolute maximum rating item indicates the condition which must not be exceeded.

Application of voltage in excess of absolute maximum rating or use out absoluted maximum rated temperature environment may cause deterioration of characteristics.

(*1) The voltage difference between inverting input and non-inverting input is the differential input voltage.Then input terminal voltage is set to more then VEE.

●Electrical

characteristics

○BU7251

family (Unless otherwise specified VDD=+3[V], VSS=0[V], Ta=25[℃])

Guaranteed Limit

Temperature

BU7251G,BU7251SG

Parameter

Symbol

Unit

Condition

range

Min.

Typ.

Max.

(*2)(*4)

Vio

25℃

Input Offset Voltage

(*2)

Iio

25℃

Input Offset Current

(*2)

25℃

Input Bias Current

Vicm

25℃

V (VDD-VSS)=3[V]

Input Common-mode voltage Range

25℃

dB RL=10[kΩ]

Large Signal Voltage Gain

25℃

(*4)

IDD

μA

RL=∞

Supply current

full range

PSRR

25℃

Power supply rejection ratio

CMRR

25℃

Common-mode rejection ratio

(*3)

IOH

25℃

mA VDD-0.4

Output source current

(*3)

IOL

25℃

mA VSS+0.4

Output sink current

(*4)

VOH

25℃

V RL=10[kΩ]

High Level Output Voltage

VDD-0.1

(*4)

VOL

25℃

Low Level Output Voltage

VSS+0.1 V RL=10[kΩ]

25℃

ns CL=15pF 100mV over drive

Output rise time

25℃

ns CL=15pF 100mV over drive

Output fall time

TPLH

25℃

μs

CL=15pF 100mV over drive

Propagation delay L to H

0.55

TPHL

25℃

μs

CL=15pF 100mV over drive

Propagation delay H to L

0.25

(*2)

(*3)

(*4)

Abusolute values

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.

Full range BU7251：Ta=-40[℃] to +85[℃] BU7251S：Ta=-40[℃] to +105[℃]

○BU7252

family (Unless otherwise specified VDD=+3[V], VSS=0[V], Ta=25[℃])

Guaranteed Limit

Temperature

BU7252 F/FVM

Parameter

Symbol

Unit

Condition

BU7252S F/FVM

range

Min.

Typ.

Max.

(*2)(*4)

Vio

25℃

Input Offset Voltage

(*2)

Iio

25℃

Input Offset Current

(*2)

25℃

Input Bias Current

Vicm

25℃

V (VDD-VSS)=3[V]

Input Common-mode voltage Range

25℃

dB RL=10[kΩ]

Large Signal Voltage Gain

25℃

IDD

μA

RL=∞

Supply current

(*4)

full range

PSRR

25℃

Power supply rejection ratio

CMRR

25℃

Common-mode rejection ratio

(*3)

IOH

25℃

mA VDD-0.4

Output source current

(*3)

IOL

25℃

mA VSS+0.4

Output sink current

(*4)

VOH

25℃

V RL=10[kΩ]

High Level Output Voltage

VDD-0.1

(*4)

VOL

25℃

Low Level Output Voltage

VSS+0.1 V RL=10[kΩ]

25℃

ns CL=15pF 100mV over drive

Output rise time

25℃

ns CL=15pF 100mV over drive

Output fall time

TPLH

25℃

μs

CL=15pF 100mV over drive

Propagation delay L to H

0.55

TPHL

25℃

μs

CL=15pF 100mV over drive

Propagation delay H to L

0.25

(*2)

(*3)

(*4)

Abusolute values

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.

Full range BU7251,BU7252：Ta=-40[℃] to +85[℃] BU7251S,BU7252S：Ta=-40[℃] to +105[℃]

2/18

BU7251G,BU7251SG, BU7231G,BU7231SG,

BU7252F/FVM,BU7252S F/FVM,BU7232F/FVM,BU7232S F/FVM

○BU7231

family (Unless otherwise specified VDD=+3[V], VSS=0[V], Ta=25[℃])

Guaranteed Limit

Temperature

Parameter

Symbol

BU7231G,BU7231SG

range

Min.

Typ.

Max.

Input Offset Voltage

(*5)

Input Offset Current

Input Bias Current

(*5)

Technical Note

Unit

μA

μs

VDD-0.4

VSS+0.4

Condition

(VDD-VSS)=3[V]

RL=10[kΩ]

RL=∞

Vio

Iio

Vicm

IDD

PSRR

CMRR

IOH

IOL

(*7)

25℃

full range

25℃

VDD-0.1

1.7

0.5

VSS+0.1

Input Common-mode voltage Range

Large Signal Voltage Gain

Supply current

Power supply rejection ratio

Common-mode rejection ratio

Output source current

Output sink current

(*6)

High Level Output Voltage

Low Level Output Voltage

Output rise time

Output fall time

Propagation delay L to H

Propagation delay H to L

(*5)

(*6)

(*7)

VOH

VOL

TPLH

TPHL

RL=10[kΩ]

CL=15pF 100mV over drive

(*7)

Abusolute values

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.

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[℃])

Guaranteed Limit

Temperature

BU7232F/FVM

Parameter

Symbol

BU7232S F/FVM

range

Min.

Typ.

Max.

Input Offset Voltage

(*5)

Input Offset Current

Input Bias Current

(*5)

Unit

μA

μs

VDD-0.4

VSS+0.4

Condition

(VDD-VSS)=3[V]

RL=10[kΩ]

RL=∞

Vio

Iio

Vicm

IDD

PSRR

CMRR

IOH

IOL

(*7)

25℃

full range

25℃

VDD-0.1

1.7

0.5

VSS+0.1

Input Common-mode voltage Range

Large Signal Voltage Gain

Supply current

Power supply rejection ratio

Common-mode rejection ratio

Output source current

Output sink current

(*6)

High Level Output Voltage

Low Level Output Voltage

Output rise time

Output fall time

Propagation delay L to H

Propagation delay H to L

(*5)

(*6)

(*7)

VOH

VOL

TPLH

TPHL

RL=10[kΩ]

CL=15pF 100mV over drive

(*7)

Abusolute values

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.

Full range,BU7232：Ta=-40[℃] to +85[℃] BU7232S：Ta=-40[℃] to +105[℃]

3/18

BU7251G,BU7251SG, BU7231G,BU7231SG,

BU7252F/FVM,BU7252S F/FVM,BU7232F/FVM,BU7232S F/FVM

●Example

of electrical characteristics

○BU7251

family

BU7251 family

800

Technical Note

800

POWER DISSIPATION [mW] .

BU7251 family

SUPPLY CURRENT [μA]

BU7251 family

POWER DISSIPATION [mW] .

600

BU7251G

600

BU7251SG

85℃

105℃

400

25℃

-40℃

200

100

AMBIENT TEMPERATURE [℃]

150

100

150

AMBIENT TEMPERATURE [

℃

]

SUPPLY VOLTAGE [V]

Fig. 1

Derating Curve

BU7251 family

Fig. 2

Derating Curve

Fig. 3

Supply Current – Supply Voltage

BU7251 family

OUTPUT VOLTAGE HIGH [V]

SUPPLY CURRENT [μA]

105℃

OUTPUT VOLTAGE HIGH [V]

5.5V

85℃

25℃

5.5V

3.0V

1.8V

3.0V

-40℃

-60

SUPPLY VOLTAGE [V]

-60

-30

AMBIENT TEMPERATURE [℃]

120

-30

AM BIENT TEM PERATURE [

℃

]

120

Fig. 4

Supply Current – Ambient

Temperature

BU7251 family

Fig. 5

Output Voltage High – Supply Voltage

(RL=10[kΩ])

OUTPUT VOLTAGE LOW [mV]

BU7251 family

Fig. 6

Output Voltage High – Ambient Temperature

(RL=10[kΩ])

OUTPUT SOURCE CURRENT [mA]

BU7251 family

OUTPUT VOLTAGE LOW [mV]

-40℃

85℃

105℃

5.5V

1.8V

25℃

85℃

105℃

-40℃

3.0V

25℃

SUPPLY VOLTAGE [V]

-60

-30

120

0.0

0.5

1.0

1.5

2.0

2.5

3.0

AMBIENT TEMPERATURE [

℃

]

Fig. 7

Output Voltage Low – Supply Voltage

(RL=10[kΩ])

OUTPUT SOURCE CURRENT [mA]

BU7251 family

Fig. 8

Output Voltage Low – Ambient

Temperature

(RL=10[kΩ])

105℃

85℃

BU7251 family

Fig. 9

Output Source Current – Supply

Voltage

(VDD=3[V])

OUTPUT SINK CURRENT [mA]

BU7251 family

OUTPUT VOLTAGE [V]

5.5V

OUTPUT SINK CURRENT [mA]

-40℃

25℃

5.5V

3.0V

1.8V

-60

-30

120

0.0

0.5

1.0

1.5

2.0

2.5

3.0

-60

-30

120

AMBIENT TEMPERATURE [

℃

]

OUTPUT VOLTAGE [V]

AMBIENT TEMPERATURE [

℃

]

Fig. 10

Output Source Current – Ambient Temperature

Fig. 11

Output Sink Current – Output Voltage

(VDD=3[V])

Fig. 12

Output Sink Current – Ambient Temperature

(VOUT=VSS+0.4[V])

(VOUT=VDD-0.4[V])

(*) The above date is ability value of sample, it is not guaranteed.

BU7251G：-40[℃] to+85[℃] BU7251SG：-40[℃] to+105[℃]

4/18

BU7251G,BU7251SG, BU7231G,BU7231SG,

BU7252F/FVM,BU7252S F/FVM,BU7232F/FVM,BU7232S F/FVM

○BU7251

family

10.0

7.5

5.0

2.5

0.0

-2.5

-5.0

-7.5

-10.0

SUPPLY VOLTAGE [V]

85℃

105℃

Technical Note

BU7251 family

10.0

INPUT OFFSET VOLTAGE [mV]

7.5

5.0

2.5

0.0

-2.5

-5.0

-7.5

-10.0

-60

5.5V

3.0V

INPUT OFFSET VOLTAGE [mV]

85℃

BU7251 family

INPUT OFFSET VOLTAGE [mV]

105℃

25℃

-40℃

25℃

1.8V

-5

-10

-15

-30

AMBIENT TEMPERATURE [℃]

120

-1

INPUT VOLTAGE [V]

Fig. 13

Input Offset Voltage – Supply Voltage

(Vicm=VDD, Vout=0.1[V])

160

LARGE SIGNAL VOLTAGE GAIN [dB]

BU7251 family

Fig. 14

Input Offset Voltage – Ambient Temperature

(Vicm=VDD, Vout=0.1[V])

COMMON MODE REJECTION RATIO [dB]

Fig. 15

Input offset voltage – Input Voltage

(VDD=3[V])

120

100

85℃

BU7251 family

160

LARGE SIGNAL VOLTAGE GAIN [dB]

BU7251 family

140

25℃

SUPPLY VOLTAGE [V]

105℃

-40℃

120

105℃

85℃

120

3.0V

1.8V

100

-40℃

25℃

100

5.5V

SUPPLY VOLTAGE [V]

-60

-30

AMBIENT TEMPERATURE [℃]

120

Fig. 16

Large Signal Voltage Gain – Supply Voltage

120

100

3.0V

BU7251 family

Fig. 17

Large Signal Voltage Gain

– Ambient Temperature

POWER SUPPLY REJECTION RATIO [dB]

120

100

-60

BU7251 family

Fig. 18

Common Mode rejection Ratio

– Supply Voltage

(VDD=3[V])

2.0

PROPAGATION DELAY L-H [μs]

BU7251 family

COMMON MODE REJECTION RATIO [dB]

5.5V

1.5

-60

1.8V

1.0

5.5V

3.0V

0.5

0.0

-30

AMBIENT TEMPERATURE [

℃

]

120

-60

-30

AMBIENT TEMPERATURE [

℃

]

120

-30

AMBIENT TEMPERATURE [

℃

]

120

Fig. 19

Common Mode Rejection Ratio –

Ambient Temperature

(VDD=3[V])

0.8

PROPAGATION DELAY H-L [μs]

BU7251 family

Fig. 20

Power Supply Rejection –

Ambient Temperature

Fig. 21

Propagation Delay L-H –

Ambient Temperature

0.6

0.4

1.8V

5.5V

0.2

3.0V

0.0

-60

-30

AMBIENT TEMPERATURE [℃]

120

Fig. 22

ropagation Delay H-L – Ambient Temperature

(*) The above date is ability value of sample, it is not guaranteed.

BU7251G：-40[℃] to+85[℃] BU7251SG：-40[℃] to+105[℃]

5/18