Rev.5.1
_00
MINI ANALOG SERIES
0.5
μA
Rail-to-Rail CMOS OPERATIONAL AMPLIFIER
S-89430A/89431A
The mini-analog series is a group of ICs that incorporate a
general purpose analog circuit in a small package.
The S-89430A/89431A is a CMOS type operational
amplifier that feature Rail-to-Rail*
1
I/O and an internal phase
compensation circuit, and that can be driven at a lower
voltage with lower current consumption than existing bipolar
operational amplifiers. These features make this product
the ideal solution for small battery-powered portable
equipment.
These features enable driving at a lower voltage (from 0.9
V) and with lower current consumption (0.5
μA)
The S-89430A/89431A is a single operational amplifier.
*1. Rail-to-Rail is a registered trademark of Motorola Inc.
Features
Lower operating voltage than the conventional general-purpose operational amplifiers:
V
DD
=
0.9 to 5.5 V
Low current consumption:
Wide I/O voltage range:
( Rail-to-Rail )
Low input offset voltage:
10.0 mV (max.) (S-89430A)
5.0 mV (max.) (S-89431A)
No external capaciters required for internal phase compensation
Lead-free products
I
DD
=
0.5
μA
V
CMR
=
V
SS
to V
DD
Application
Cellular phones
PDAs
Notebook PCs
Digital cameras
Digital video cameras
Package
Package Name
SC-88A
SOT-23-5
Package
NP005-B
MP005-A
Drawing Code
Tape
NP005-B
MP005-A
Reel
NP005-B
MP005-A
Seiko Instruments Inc.
1
MINI ANALOG SERIES
S-89430A/89431A
Product Name List
0.5
μA
Rail-to-Rail CMOS OPERATIONAL AMPLIFIER
Rev.5.1
_00
Input Offset Voltage
V
IO
=
10 mV
V
IO
=
5 mV
Remark
Table 1
SC-88A
(Single)
S-89430ACNC-HBUTFG
S-89431ACNC-HBVTFG
SOT-23-5
(Single)
S-89430ACMC-HBUT2G
S-89431ACMC-HBVT2G
Delivery form : Taping only
Pin Configuration
SC-88A
Top view
VDD
5
OUT
4
Table 2
Pin No.
1
2
3
4
5
Symbol
IN(+)
VSS
IN(−)
OUT
VDD
Description
Non-inverted input pin
GND pin
Inverted input pin
Output pin
Positive power supply pin
Internal Equivalent
Circuit
Figure
⎯
Figure
Figure
Figure
4
4
3
5
+
−
3
1
2
IN (+) VSS IN (−)
Figure 1
SOT-23-5
Top view
OUT
VDD
4
5
+
−
1
2
3
IN (+) VSS IN (−)
Figure 2
2
Seiko Instruments Inc.
MINI ANALOG SERIES
Rev.5.1
_00
Internal Equivalent Circuit
(1) Output pin
VDD
0.5
μA
Rail-to-Rail CMOS OPERATIONAL AMPLIFIER
S-89430A/89431A
(2) Input pin
VDD
VSS
VSS
Figure 3
(3) VDD pin
VDD
Figure 4
VSS
Figure 5
Seiko Instruments Inc.
3
MINI ANALOG SERIES
S-89430A/89431A
0.5
μA
Rail-to-Rail CMOS OPERATIONAL AMPLIFIER
Rev.5.1
_00
Absolute Maximum Ratings
Table 3
(Ta
=
25°C unless otherwise specified)
Parameter
Power supply voltage
Input voltage
Output voltage
Differential input voltage
Output pin current
SC-88A
P
D
SOT-23-5
Symbol
V
DD
V
IN
V
OUT
V
IND
I
SOURCE
I
SINK
Ratings
V
SS
−
0.3 to V
SS
+
7.0
V
SS
−
0.3 to V
SS
+
7.0 (7.0 max.)
V
SS
−
0.3 to V
DD
+
0.3 (7.0 max.)
±5.5
7.0
200 (When not mounted on board)
350
*1
250 (When not mounted on board)
600
*1
−40
to
+85
−55
to
+125
Unit
V
V
V
V
mA
mW
mW
mW
mW
°C
°C
Power
dissipation
Operating temperature range
T
opr
Storage temperature range
T
stg
*
1.
When mounted on board
[Mounted board]
(1) Board size :
114.3 mm
×
76.2 mm
×
t1.6 mm
(2) Board name :
JEDEC STANDARD51-7
Caution
The absolute maximum ratings are rated values exceeding which the product
could suffer physical damage. These values must therefore not be exceeded under
any conditions.
Power Dissipation (P
D
) [mW]
700
600
500
400
300
200
100
0
0
100
150
50
Ambient Temperature (Ta) [°C]
SOT-23-5
SC-88A
Figure 6
Power Dissipation of Package (When Mounted on Board)
Recommended Operating Voltage Range
Table 4
Parameter
Operating power supply voltage range
Symbol
V
DD
Range
0.9 to 5.5
Unit
V
4
Seiko Instruments Inc.
MINI ANALOG SERIES
Rev.5.1
_00
Electrical Characteristics
1. V
DD
=
3.0 V
0.5
μA
Rail-to-Rail CMOS OPERATIONAL AMPLIFIER
S-89430A/89431A
Table 5
DC Characteristics (V
DD
=
3.0 V)
Parameter
Current consumption
*1
Input offset voltage
Symbol
I
DD
V
IO
Measurement Conditions
V
CMR
=
V
OUT
=
1.5 V
S-89430A : V
CMR
=
1.5 V
S-89431A : V
CMR
=
1.5 V
⎯
⎯
⎯
V
SS
+
0.1 V
≤
V
OUT
≤
V
DD
−
0.1 V,
V
CMR
=
1.5 V, R
L
=
1 MΩ
R
L
=
100 KΩ
R
L
=
100 KΩ
V
SS
≤
V
CMR
≤
V
DD
V
DD
= 0.9 to 5.5 V
(Ta
=
25°C unless otherwise specified)
Measurement
Min. Typ. Max. Unit
Circuit
0.5
0.9
Figure 12
⎯
μA
−10
±5
+10
mV
Figure 8
−5
±3
+5
1
pA
⎯
⎯
⎯
1
pA
⎯
⎯
⎯
0
70
2.95
⎯
45
70
⎯
80
⎯
⎯
65
80
3
⎯
⎯
0.05
⎯
⎯
V
dB
V
dB
dB
Figure 9
Figure 16
Figure 10
Figure 11
Figure 9
Figure 7
Input offset current
I
IO
Input bias current
I
BIAS
Common-mode input
V
CMR
voltage range
Voltage gain
A
VOL
(open loop)
Maximum output
V
OH
swing voltage
V
OL
Common-mode input
CMRR
signal rejection ratio
Power supply voltage
PSRR
rejection ratio
Source current
I
SOURCE
400 500
V
OUT
= V
DD
−0.1
V
⎯
Figure 13
μA
4800 6000
⎯
V
OUT
= 0 V
V
OUT
= 0.1 V
400 550
⎯
Sink current
I
SINK
Figure 14
μA
4800 6000
⎯
V
OUT
= V
DD
*1
When the output is saturated on the V
DD
side, a current consumption of up to 3 to 5
μA
may flow.
(Refer to
4. Current consumption vs. Common-mode input voltage characteristics
graphs in the
characteristics data. )
Table 6
AC Characteristics (V
DD
=
3.0 V)
Parameter
Symbol
Slew rate
Gain-bandwidth product
Maximum load capacitance
SR
GBP
C
L
(Ta
=
25°C unless otherwise specified)
Measurement Conditions
Min.
Typ.
Max.
Unit
R
L
=
1.0 MΩ, C
L
=
15 pF
(Refer to
Figure 15.)
C
L
=
0 pF
⎯
⎯
⎯
⎯
5
4.8
47
⎯
⎯
⎯
V/ms
kHz
pF
Seiko Instruments Inc.
5
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