BU7251SG-E2 datasheet, PDF - EEWORLD Datasheet

Datasheet> All Categories > Analog mixed-signal IC> Amplifier circuit> BU7251SG-E2

BU7251SG-E2: DescriptionCOMPARATOR, PDSO5; CategoryAnalog mixed-signal IC Amplifier circuit; File Size701KB，31 Pages; ManufacturerROHM Semiconductor; Websitehttps://www.rohm.com/

Download Datasheet Parametric View All

BU7251SG-E2 Overview

COMPARATOR, PDSO5

BU7251SG-E2 Parametric

Parameter Name	Attribute value
Maker	ROHM Semiconductor
Parts packaging code	SSOP
package instruction	LEAD FREE, SSOP-5
Contacts	5
Reach Compliance Code	compliant
ECCN code	EAR99
Amplifier type	COMPARATOR
JESD-30 code	R-PDSO-G5
Number of terminals	5
Package body material	PLASTIC/EPOXY
Package shape	RECTANGULAR
Package form	SMALL OUTLINE
Certification status	Not Qualified
surface mount	YES
Terminal form	GULL WING
Terminal location	DUAL
Base Number Matches	1

Preview

Download Datasheet

View All

Datasheet

Comparator

Input Full Swing Push-pull Output

High Speed CMOS Comparators

BU7251G

BU7251SG BU7252xxx

BU7252Sxxx

Key Specifications



Operating Supply Voltage

+1.8V to +5.5V

(Single Supply):

(Split Supply):

±0.9V to ±2.75V



Supply Current (VDD=3V, T

=25°C):

BU7251G, BU7251SG

15μA

35μA

BU7252xxx, BU7252Sxxx



Input Bias Current (T

=25°C):

1pA



Operating Temperature Range:

BU7251G, BU7252xxx

-40°C to 85°C

-40°C to 105°C

BU7251SG, BU7252Sxxx

Package

SSOP5

SOP8

MSOP8

W(Typ) xD(Typ) xH(Max)

2.90mm x 2.80mm x 1.25mm

5.00mm x 6.20mm x 1.71mm

2.90mm x 4.00mm x 0.90mm

General Description

BU7251G/BU7252xxx are input full swing and push pull

output comparators. BU7251SG/BU7252Sxxx have an

expanded operating temperature range. These features

low operating supply voltage of +1.8V to +5.5V(single

supply) with low supply current and extremely low input

bias current.

Features



Low Operating Supply Voltage



Low supply current



Input Full Swing



Push-pull Output



Wide Operating Temperature Range

Applications



Battery Monitor



Limit Comparator



Mobile Equipments



Current Detection Circuit



Consumer Electronics

Pin Configuration

BU7251G, BU7251SG: SSOP5

Pin No.

OUT

IN-

VSS

VDD

Pin Name

IN-

VSS

IN+

OUT

VDD

IN+ 3

BU7252F, BU7252SF: SOP8

BU7252FVM, BU7252SFVM: MSOP8

Pin No.

OUT1 1

IN1- 2

IN1+ 3

VSS 4

CH1

- +

CH2

+ -

8 VDD

7 OUT2

6 IN2-

5 IN2+

Pin Name

OUT1

IN1-

IN1+

VSS

IN2+

IN2-

OUT2

VDD

○Product

structure：Silicon monolithic integrated circuit

○This

product is not designed protection against radioactive rays.

www.rohm.com

TSZ22111½14½001

1/28

TSZ02201-0RFR0G200410-1-2

20.Feb.2014 Rev.001

BU7251G

BU7251SG

BU7252xxx

BU7252Sxxx

Datasheet

Description of Electrical Characteristics

Described below are descriptions of the relevant electrical terms used in this datasheet. Items and symbols used are also

shown. Note that item name and symbol and their meaning may differ from those on another manufacturer’s document or

general document.

1. Absolute Maximum Ratings

Absolute maximum rating items indicate the condition which must not be exceeded. Application of voltage in excess of absolute

maximum rating or use out of absolute maximum rated temperature environment may cause deterioration of characteristics.

(1) Supply Voltage (VDD/VSS)

Indicates the maximum voltage that can be applied between the VDD terminal and VSS terminal without

deterioration or destruction of characteristics of internal circuit.

(2) Differential Input Voltage (V

)

Indicates the maximum voltage that can be applied between non-inverting and inverting terminals without damaging

the IC.

(3) Input Common-mode Voltage Range (V

ICM

)

Indicates the maximum voltage that can be applied to the non-inverting and inverting terminals without deterioration

or destruction of electrical characteristics. Input common-mode voltage range of the maximum ratings does not assure

normal operation of IC. For normal operation, use the IC within the input common-mode voltage range characteristics.

(4) Power Dissipation (P

)

Indicates the power that can be consumed by the IC when mounted on a specific board at the ambient temperature 25°C

(normal temperature). As for package product, P

is determined by the temperature that can be permitted by the IC in

the package (maximum junction temperature) and the thermal resistance of the package.

2. Electrical Characteristics

(1) Input Offset Voltage (V

)

Indicates the voltage difference between non-inverting terminal and inverting terminals. It can be translated into the

input voltage difference required for setting the output voltage at 0 V.

(2) Input Offset Current (I

)

Indicates the difference of input bias current between the non-inverting and inverting terminals.

(3) Input Bias Current (I

)

Indicates the current that flows into or out of the input terminal. It is defined by the average of input bias currents at

the non-inverting and inverting terminals.

(4) Supply Current (I

)

Indicates the current that flows within the IC under specified no-load conditions.

(5) Maximum Output Voltage(High) / Maximum Output Voltage(Low) (V

)

Indicates the voltage range of the output under specified load condition. It is typically divided into maximum output

voltage high and low. Maximum output voltage high indicates the upper limit of output voltage. Maximum output

voltage low indicates the lower limit.

(6) Large Signal Voltage Gain (A

)

Indicates the amplifying rate (gain) of output voltage against the voltage difference between non-inverting terminal

and inverting terminal. It is normally the amplifying rate (gain) with reference to DC voltage.

= (Output voltage) / (Differential Input voltage)

(7) Input Common-mode Voltage Range (V

ICM

)

Indicates the input voltage range where IC normally operates.

(8) Common-mode Rejection Ratio (CMRR)

Indicates the ratio of fluctuation of input offset voltage when the input common mode voltage is changed. It is

normally the fluctuation of DC.

CMRR = (Change of Input common-mode voltage)/(Input offset fluctuation)

(9) Power Supply Rejection Ratio (PSRR)

Indicates the ratio of fluctuation of input offset voltage when supply voltage is changed.

It is normally the fluctuation of DC.

PSRR = (Change of power supply voltage)/(Input offset fluctuation)

(10) Output Source Current/Output Sink Current (I

SOURCE

/ I

SINK

)

The maximum current that can be output from the IC under specific output conditions. The output source current

indicates the current flowing out from the IC, and the output sink current indicates the current flowing into the IC.

(11) Output Rise Time/Output Fall Time (t

/ t

)

Indicates the time required for an output voltage step to change from 10% to 90% of its final value.

(12) Rising Propagation Delay Time/Falling Propagation Delay Time (t

PLH

/ t

PHL

)

Indicates the time to reach 50% of the output voltage after the step voltage is applied at the input pin.

www.rohm.com

TSZ22111½15½001

5/28

TSZ02201-0RFR0G200410-1-2

20.Feb.2014 Rev.001

Recommended Resources

Light detection isolation amplifier circuit

Using LTC1148 to form a high-efficiency nickel-cadmium battery charger circuit diagram

Phase shift voltage regulation circuit

Programmable power oscillator TC96C555 circuit diagram

uPC1310V power amplifier circuit

Standard application circuit of 5-terminal adjustable output voltage integrated voltage regulator CW200

Introduction to the method of board-level online compilation and downloading of C6000 DSP code: Traditional C6000 DSP software is compiled and debugged on a WINDOWS PC through CCS. After testing, the compiled executable file is burned into FLASH. By setting the DSP startup mode to start from FLA...; fish001 Microcontroller MCU

Working principle of lithium battery equalization circuit: [i=s] This post was last edited by qwqwqw2088 on 2019-2-11 14:23 Edit[/i] [size=4][color=#000000][backcolor=white] The development of new energy and electric vehicles will use lithium batteries with r...; qwqwqw2088 Analogue and Mixed Signal

[SAMR21 new gameplay] 31. Using NVM storage: [i=s]This post was last edited by dcexpert on 2019-10-17 10:55[/i]In SAMR21, part of the flash space can be used to simulate EEPROM, which is called NVM (Non-Volatile Memory). Using EEPROM is simpler ...; dcexpert MicroPython Open Source section

[ATmega4809 Curiosity Nano Review] Buttons: On the ATmega4809 Curiosity Nano, the button uses PF6, which is also the RST pin and is set to GPIO mode by default. Because there is a 100K pull-up resistor R200 on PF6, there is no need to set the i...; dcexpert MCU

Have you fallen into these customer support "pitfalls"? Read the story, write a comment, grab a post and win a gift!: [align=left][b][font=微软雅黑][size=3]No way to get support in the middle of the night, time-consuming to return software to the factory for upgrading, too low efficiency of customer service communication...; EEWORLD社区 Test/Measurement

About rail-to-rail op amps: [size=4]1. The so-called rail-to-rail operational amplifier refers to an amplifier whose input and output voltage swings are very close to or almost equal to the power supply voltage. [/size] [size=4]...; Jacktang Analogue and Mixed Signal

Shortcut: L0 L1 L2 L3 L4 L5 L6 L7 L8 L9 LA LB LC LD LE LF LG LH LI LJ LK LL LM LN LO LP LQ LR LS LT LU LV LW LX LY LZ M0 M1 M2 M3 M4 M5 M6 M7 M8 M9 MA MB MC MD ME MF MG MH MI MJ MK ML MM MN MO MP MQ MR MS MT MU MV MW MX MY MZ N0 N1 N2 N3 N4 N5 N6 N7 N8 NA NB NC ND NE NF NG NH NI NJ NK NL NM NN NO NP NQ NR NS NT NU NV NX NZ O0 O1 O2 O3 OA OB OC OD OE OF OG OH OI OJ OK OL OM ON OP OQ OR OS OT OV OX OY OZ P0 P1 P2 P3 P4 P5 P6 P7 P8 P9 PA PB PC PD PE PF PG PH PI PJ PK PL PM PN PO PP PQ PR PS PT PU PV PW PX PY PZ Q1 Q2 Q3 Q4 Q5 Q6 Q8 Q9 QA QB QC QE QF QG QH QK QL QM QP QR QS QT QV QW QX QY R0 R1 R2 R3 R4 R5 R6 R7 R8 R9 RA RB RC RD RE RF RG RH RI RJ RK RL RM RN RO RP RQ RR RS RT RU RV RW RX RY RZ

Popular Components