1/26

www.rohm.com

2010.12 - Rev.A

© 2010 ROHM Co., Ltd. All rights reserved.

Operational Amplifiers / Comparators

High Speed with Low Voltage

CMOS Operational Amplifiers

Input-Output Full Swing

BU7291G,BU7291SG,BU7255HFV,BU7255SHFV

Ground sense

BU7495HFV,BU7495SHFV,BU7481G,BU7481SG

BU7485G,BU7485SG,BU5281G,BU5281SG

●Description

Low Voltage with High Speed CMOS Op-Amp integrates one independent output full swing Op-Amps and phase

compensation capacitors on a single chip. Especially, this series is operable with low voltage, low supply current, high speed

and low input bias current.

・Input-Output Full Swing

BU7291 family, BU7255 family

・Ground sense

BU7495 family, BU7481 family,

BU7485 family, BU5281 family

●Features

1) Low operating supply voltage

+2.4 [V] ~ +5.5 [V] (single supply): BU7291 family

BU7255 family

+1.8 [V] ~ +5.5 [V] (single supply): BU7495 family

BU7481 family

BU5281 family

+3.0 [V] ~ +5.5 [V] (single supply): BU7485 family

2) High large signal voltage gain

3) Internal ESD protection

Human body model (HBM) ±4000 [V] (Typ.)

4) Low input bias current 1[pA] (Typ.)

5) High slew rate

3.0 [V/

μs]: BU7291 family

3.4 [V/

μs]: BU7255 family

5.0 [V/

μs]: BU7495 family

3.2 [V/

μs]: BU7481 family

2.0 [V/

μs]: BU5281 family

10.0 [V/

μs]: BU7485 family

●Pin Assignments

No.10049EAT20

BU7291G

(BU7291SG：Operation guaranteed up to +105℃)

BU7255HFV

(BU7255SHFV：Operation guaranteed up to +105℃)

BU7481G

(BU7481SG：Operation guaranteed up to +105℃)

BU7485G

(BU7485SG：Operation guaranteed up to +105℃)

BU5281G

(BU5281SG：Operation guaranteed up to +105℃)

BU7495HFV

(BU7495SHFV：Operation guaranteed up to +105℃)

High Speed

Input-Output Full Swing

Single

Single

Ground Sense

Single

Single

Single

Single

SSOP5

BU7291G BU7291SG

BU7485G BU7485SG

BU7481G BU7481SG

BU5281G BU5281SG

HVSOF5

BU7255HFV

BU7495HFV BU7495SHFV

3

4

2

1

5

+

-

OUT

+IN

-IN

VSS

VDD

BU7255SHFV