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www.rohm.com

2009.05 - Rev.A

© 2009 ROHM Co., Ltd. All rights reserved.

High speed

Single

BU7251 G

Dual

BU7252 F/FVM

(BU7252S F/FVM:105 ℃)

Low power

Single

BU7231 G

Dual

(BU7231SG:105 ℃)

BU7232 F/FVM

(BU7232S F/FVM:105 ℃)

(BU7251SG:105 ℃)

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

●

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.

●

Features

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

2) +1.8 [V]～+5.5[V](single supply)

±0.9[V]～±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[℃]～+85[℃]

(BU7251G,BU7252 family, BU7231G, BU7232 family)

-40[℃]～+105[℃]

(BU7251SG,BU7252S family, BU7231SG,BU7232S family)

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Pin Assignments

1

2

3

4

8

7

5

OUT1

IN1-

IN1+

VSS

VDD

OUT2

IN2-

IN2+

CH1

- +

CH2

+ -

6

1

2

3

5

4

IN-

VSS

IN+

VDD

OUT

－

　

＋

SOP8

SSOP5

MSOP8

BU7252F

BU7252SF

BU7232F

BU7232SF

BU7252FVM

BU7252SFVM

BU7232FVM

BU7232SFVM

BU7251G

BU7251SG

BU7231G

BU7231SG

No.09049EAT06