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LC7972 데이터시트 PDF
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PDF 형식의 LC7972 자료 제공
| 부품번호 | LC7972 기능 |
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| 기능 | CMOS Operational Amplifier with Programmable Offset Correction Function | ||
| 제조업체 | Sanyo Semicon Device | ||
| 로고 |  |
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Ordering number : EN5682
CMOS LSI
LC7972VA, 7972VB
CMOS Operational Amplifier with Programmable
Offset Correction Function
Overview
The LC7972VA and LC7972VB are dual
inverting/noninverting operational amplifier ICs that are
fabricated in a CMOS process. These ICs provide a
programmable offset correction function and a power
saving function for use when the operational amplifier is
unused, both of which can be controlled from a
microprocessor interface.
• The following modes are supported. These are selected
via port level settings.
Package Dimensions
unit: mm
3179A-SSOP20
[LC7972VA, VB]
Features
• High input impedance provided by fabrication in a
CMOS process.
• Low power provided by fabrication in a CMOS process.
• One of two types of operational amplifier can be
selected: inverting (operational amplifier 1) or
noninverting (operational amplifier 2)
• Operating supply voltage: 4.9 to 5.2 V
• Package: SSOP20
• Operating temperature: Ta = –30 to +70°C
SANYO: SSOP20
Port
OP1ON
OP2ON
OFST1
OFST2
CLKC
Level
L
H
L
H
L
H
L
H
L
Function
Operational amplifier 1: Operation stopped (low-power mode)
Operational amplifier 1: Normal operation (OP2ON must be low in this mode.)
Operational amplifier 2: Operation stopped (low-power mode)
Operational amplifier 2: Normal operation (OP1ON must be low in this mode.)
Operational amplifier 1: Offset mode (inverting input = VSS)
Operational amplifier 1: Operating mode (inverting input = normal input)
Operational amplifier 2: Offset mode (noninverting input = VSS)
Operational amplifier 2: Operating mode (noninverting input = normal input)
Operational amplifier power supply clock: Internal clock
s No products described or contained herein are intended for use in surgical implants, life-support systems, aerospace
equipment, nuclear power control systems, vehicles, disaster/crime-prevention equipment and the like, the failure of
which may directly or indirectly cause injury, death or property loss.
s Anyone purchasing any products described or contained herein for an above-mentioned use shall:
Accept full responsibility and indemnify and defend SANYO ELECTRIC CO., LTD., its affiliates, subsidiaries and
distributors and all their officers and employees, jointly and severally, against any and all claims and litigation and all
damages, cost and expenses associated with such use:
Not impose any responsibility for any fault or negligence which may be cited in any such claim or litigation on
SANYO ELECTRIC CO., LTD., its affiliates, subsidiaries and distributors or any of their officers and employees
jointly or severally.
s Information (including circuit diagrams and circuit parameters) herein is for example only; it is not guaranteed for
volume production. SANYO believes information herein is accurate and reliable, but no guarantees are made or implied
regarding its use or any infringements of intellectual property rights or other rights of third parties.
This catalog provides information as of July, 1997. Specifications and information herein are subject to change
without notice.
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
73097HA(OT) No. 5682-1/4
 
LC7972VA, 7972VB
Specifications
Absolute Maximum Ratings at Ta = 25°C, VSS = 0 V
Parameter
Maximum supply voltage
Output voltage
Input voltage
Peak output current
Average output current
Allowable power dissipation
Operating temperature
Storage temperature
Symbol
VDD max
VO
VI1
VI2
IOP
IOA
Pd max
Topr
Tstg
Conditions
VDD
OP1O, OP2O, TGO
OP1ON, OFST1, OP2ON, OFST2, EXT, CLKC, CUP2,
CUP1, AVSSP, OP1I, OP2I, TGI
AVSSM
OP1O, OP2O, TGO
OP1O, OP2O, TGO : The current per pin
SSOP20 : Ta = –30 to +70°C
Ratings
–0.3 to +7.0
–0.3 to VDD+0.3
–0.3 to VDD+0.3
–3 to +0.3
–1 to +1
–1 to +1
100
–30 to +70
–55 to +125
Unit
V
V
V
V
mA
mA
mW
°C
°C
Allowable Operating Ranges at Ta = –30 to +70°C, VSS = 0 V, VDD = 4.9 to 5.2 V, unless otherwise specified
Parameter
Supply voltage
Input high-level voltage
Input low-level voltage
Common-mode input voltage
Voltage drop
Symbol
Conditions
VDD
VDD
VIH OP1ON, OFST1, OP2ON, OFST2
VIL1 OP1ON, OFST1, OP2ON, OFST2, CLKC
VIL2 EXT
VIC
DV AVSSM: Zener diode = 5.1 V (X rank specified)
min
4.9
0.7 VDD
VSS
VSS
0
Ratings
typ
–0.2
max
5.2
VDD
0.3 VDD
0.3 VDD
4.2
Electrical Characteristics at Ta = –30 to +70°C, VSS = 0 V, VDD = 4.9 to 5.2 V, unless otherwise specified
Unit
V
V
V
V
V
V
Parameter
Input high-level current
Input low-level current
Output high-level voltage
Output low-level voltage
Operational amplifier 1 gain-related resistance
Operational amplifier 1 gain-related resistance
difference
Current drain
Operating
Standby
Symbol
Conditions
min
IIH1 OP1ON, OFST1, OP2ON, OFST2 : VIN = VDD
IIH2 TGI: VIN = VDD, with the built-in TG off.
OP1ON, OFST1, OP2ON, OFST2, EXT,
IIL1 CLKC : VIN = VSS
–1.0
IIL2 TGI: VIN = VSS, with the built-in TG off.
–1.0
VOH OP1O, OP2O : IOH = –3 µA
VDD – 0.5
VOL OP1O, OP2O : IOL = 3 µA
Rtg + 2Rs TGO, TGI
500
TGO, TGI: Offset mode: Rx = Rtg + 2Rs
|Rx–Ry| Operating mode: Ry = Rtg + 2Rs
IDDOP
IDDST
VDD; Using the internal clock, with the
operational amplifier 1 circuit operating.
VDD; Both operational amplifiers 1 and 2
stopped.
Ratings
typ
700
700
0.05
max
1.0
1.0
0.5
900
80
Unit
µA
µA
µA
µA
V
V
Ω
Ω
900 µA
10 µA
Operational Amplifier Characteristics at Ta = 25°C ±2°C, VSS = 0 V, VDD = 4.9 to 5.2 V, unless otherwise specified
Parameter
Input offset voltage
Supply voltage rejection ratio
Common-mode rejection ratio
Open-loop voltage gain
0-dB bandwidth
Maximum output voltage
Current drain
Settling time
Symbol
Conditions
VIO
PSRR
CMRR
AO
fT
VO
ICC
TSET
OP1I, OP2I : LC7972VA
LC7972VB
1 kHz
OP1O, OP2O : RL ≥ 100 kΩ
For the operational amplifier 1 circuit
OP1O, OP2O
Ratings
min typ
5
5
60
60
80
90
VDD – 0.5
100
900
max
10.5
15
Unit
mV
mV
dB
dB
dB
kHz
V
µA
µs
No. 5682-4/4
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관련 데이터시트
| 부품번호 | 상세설명 및 기능 | 제조사 |
| LC7972 | CMOS Operational Amplifier with Programmable Offset Correction Function | Sanyo Semicon Device |
| LC7972VA | CMOS Operational Amplifier with Programmable Offset Correction Function | Sanyo Semicon Device |
| DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |