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부품번호 | BA728N 기능 |
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기능 | Dual operational amplifier | ||
제조업체 | ROHM Semiconductor | ||
로고 | |||
전체 4 페이지수
Standard ICs
Dual operational amplifier
BA728 / BA728F / BA728N
The BA728, BA728F, and BA728N are ICs with two independently functioning operational amplifiers featuring inter-
nal phase compensation. These products offer a wide range of operating voltages, from 3 to 18V ( ± 1.5 to 9V) and
are high-performance operational amplifiers which can be driven from a single power supply within the in-phase
mode input range, including a negative power supply.
•Applications
Ground sensing small-signal amplifiers
Control amplifiers requiring high phase margin, such as motor drivers
Amplifiers operated on low voltages
Capacitive loaded amplifiers
•Features
1) Can be driven from a single power supply.
2) Low power.
3) Pin layout is the same as that of the general-
purpose 4558 operational amplifier.
4) When driven from a single power supply, the power
supply voltage ranges from 3 to 18V.
5) When driven from a dual power supply, the power
supply voltage ranges from ± 1.5 to ± 9V.
6) Output is protected against short-circuits.
7) Output block is operated as a class AB to mini-
mize crossover distortion.
8) Low input bias current of 10nA (typ.).
9) Each package contains two operational amplifiers.
10) Internal phase compensation provided.
•Block diagram
BA728 / BA728F
OUT1 1
8 VCC
– IN1 2
+ IN1 3
1ch
–+
2ch
+–
7 OUT2
6 – IN2
VEE 4
5 + IN2
BA728N
1ch
–
2ch
–
1
Standard ICs
•Electrical characteristic curve
20
15
10
5
0
100 1k 10k 100k 1M
FREQUENCY: f (Hz)
Fig.8 Maximum output voltage vs.
frequency
BA728 / BA728F / BA728N
4
3
2
1
0
3
2
1
0
0
10 20 30
TIME (µs)
40
Fig.9 Output response characteristics
10
5
0
–5
– 10
0
± 5 ± 10
POWER SUPPLY VOLTAGE: V ± (V)
Fig.10 Maximum output voltage vs.
power supply voltage
•Operation notes
(1)Unused circuit connections
If there are any circuits which are not being used, we
recommend making connections as shown in Figure
11, with the non-inverted input pin connected to the
potential within the in-phase input voltage range (VICM).
VCC
To potential
in VICM
–
+
VEE
Fig.11 Unused circuit connections
•External dimensions (Units: mm)
BA728
9.3 ± 0.3
85
14
7.62
0.3 ± 0.1
2.54 0.5 ± 0.1 0° ~ 15°
BA728F
5.0 ± 0.2
85
14
1.27
0.4 ± 0.1 0.3Min.
BA728N
19.3 ± 0.2
2.8 ± 0.2
0.15
1
2.54
8
0.6 0.3 ± 0.1
0.8
1.3
DIP8
4
SOP8
SIP8
4페이지 | |||
구 성 | 총 4 페이지수 | ||
다운로드 | [ BA728N.PDF 데이터시트 ] |
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구매 문의 | 일반 IC 문의 : 샘플 및 소량 구매 ----------------------------------------------------------------------- IGBT, TR 모듈, SCR 및 다이오드 모듈을 포함한 광범위한 전력 반도체를 판매합니다. 전력 반도체 전문업체 상호 : 아이지 인터내셔날 사이트 방문 : [ 홈페이지 ] [ 블로그 1 ] [ 블로그 2 ] |
부품번호 | 상세설명 및 기능 | 제조사 |
BA728 | Dual operational amplifier | ROHM Semiconductor |
BA728 | (BA718 / BA728) Dual General Purpose Op Amp | ROHM Semiconductor |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |